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(Selected)
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|---|---|---|
| KH8 / Gambit | KH9 / Hexagon |
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(Selected)
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|---|---|---|
| KH8 / Gambit | KH9 / Hexagon |
This page contains (selected) philatelic information on Keyhole (KH) series satellites. Catalog numbers, years of issue, and notes on the satellites featured are given when available. If readers know of additional information or images, please contact the authors using the e-mail addresses at the bottom of this page.
Early Keyhole (KH) [all KH1 thru KH3, plus some KH4 and KH5] reconnaissance satellites were first known as the Discoverer / Corona-series.
| Launch information (found elsewhere) |
Launch covers (including anniversary-of-launch covers, and launch-related event covers) (farther below or elsewhere) |
Other postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.) (immediately below or elsewhere) |
|---|---|---|
| Discoverer / Corona (ARPA) | Discoverer / Corona (ARPA) | Discoverer / Corona (ARPA) |
| Keyhole (KH) (CIA) | Keyhole (KH) (CIA) | Keyhole (KH) (CIA) |
| Keyhole (on other than Keyhole launch covers) |
Below is a list of Keyhole (KH) series satellite postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Keyhole (KH) (CIA) | ||||
| No (non-launch cover) postal items found | ||||
Below is a list of (Selected) Keyhole (KH) series satellite launch covers (including anniversary-of-launch covers, and launch-related event covers).
| Country | Cancel Date | Cancel Location | Type of Item | Notes on Content |
|---|---|---|---|---|
| Items in this table are arranged chronologically, rather than by satellite number | ||||
| (Selected) Keyhole (KH) (CIA) | ||||
| 1962-04-18: KH4-2 / Discoverer-39 | ||||
| United States | 1962-04-17 | Vandenberg AFB, CA | (Sarzin) cachet on cover | KH4-2 launch ("highly classified secret satellite") |
| United States | 1962-04-17 | Vandenberg AFB, CA | (Holden black and magenta rubber-stamp) cachet on cover | KH4-2 launch (the date "17" in the cancel is readable, in its original font) |
| United States | 1962-04-17 | Vandenberg AFB, CA | (Holden black and magenta rubber-stamp) cachet on cover | KH4-2 launch (but the date "17" in the cancel is mostly missing; see the next entry for the same cover except repaired, with the "17" added in a bigger font) |
| United States | 1962-04-17 | Vandenberg AFB, CA | (Holden black and magenta rubber-stamp) cachet on cover | KH4-2 launch (with the missing cancel date repaired: the date "17" in the cancel has been added in a bigger font than what was used in the original cancel) |
| 1962-04-28: KH4-3 | ||||
| United States | 1962-04-28 | Vandenberg AFB, CA | (Goldcraft Cachets) cachet on cover | KH4-3 launch |
| United States | 1962-04-28 | Vandenberg AFB, CA | (Sarzin) cachet on cover | KH4-3 launch (not "Discoverer" as in text) |
| United States | 1962-04-28 | Vandenberg AFB, CA | (SpaceCraft Type-A general-purpose and blue rubber-stamp) cachet on cover | KH4-3 launch |
| United States | 1962-04-28 | Vandenberg AFB, CA | (Holden black and cyan rubber-stamp) cachet on cover | KH4-3 launch |
| United States | 1962-04-28 | Vandenberg AFB, CA | (Holden black and blue rubber-stamp) cachet on cover | KH4-3 launch |
| 1962-05-15: KH5-5 | ||||
| United States | 1962-05-15 | Vandenberg AFB, CA | (Goldcraft Cachets) cachet on cover | KH5-5 launch (but Mercury boilerplate capsule depicted) |
| United States | 1962-05-15 | Vandenberg AFB, CA | (SpaceCraft Type-A general-purpose and blue rubber-stamp) cachet on cover | KH5-5 launch |
| United States | 1962-05-15 | Vandenberg AFB, CA | (Holden blue rubber-stamp) cachet on cover | KH5-5 launch |
| United States | 1962-05-15 | Vandenberg AFB, CA | (Holden black and blue rubber-stamp) cachet on cover | KH5-5 launch |
| United States | 1962-05-15 | Vandenberg AFB, CA | (Holden black and blue rubber-stamp) cachet on (airmail) cover | KH5-5 launch |
| 1962-05-29: KH4-4 | ||||
| United States | 1962-05-29 | Vandenberg AFB, CA | (SpaceCraft Type-A general-purpose and blue rubber-stamp) cachet on cover | KH4-4 launch |
| United States | 1962-05-29 | Vandenberg AFB, CA | (SpaceCraft Type-C general-purpose and cyan rubber-stamp) cachet on cover | KH4-4 launch |
| United States | 1962-05-29 | Vandenberg AFB, CA | (Holden blue rubber-stamp) cachet on cover | KH4-4 launch |
| United States | 1962-05-29 | Vandenberg AFB, CA | (Holden black and blue rubber-stamp) cachet on cover | KH4-4 launch |
| United States | 1962-05-29 | Vandenberg AFB, CA | (Holden magenta and cyan rubber-stamp) cachet on (airmail) cover | KH4-4 launch |
| 1962-06-01: KH4-5 (and OSCAR-2) | ||||
| United States | 1962-06-01 | Vandenberg AFB, CA | (SpaceCraft Type-C general-purpose and red rubber-stamp) cachet on cover | KH4-5 launch |
| United States | 1962-06-01 | Vandenberg AFB, CA | (Holden black and magenta rubber-stamp) cachet on cover | KH4-5 launch |
| 1962-08-01: KH4-10 | ||||
| United States | 1962-08-01 | Vandenberg AFB, CA | (SpaceCraft Type-B general-purpose and magenta rubber-stamp) cachet on cover | KH4-10 launch |
| United States | 1962-08-01 | Vandenberg AFB, CA | (SpaceCraft Type-A general-purpose and purple rubber-stamp) cachet on cover | KH4-10 launch |
| 1962-09-01: KH5-6 | ||||
| United States | 1962-09-01 | Vandenberg AFB, CA | (SpaceCraft Type-C general-purpose and black rubber-stamp) cachet on cover | KH5-6 launch |
| 1962-09-17: KH4-12 (and US-ERS-2) | ||||
| United States | 1962-09-17 | Vandenberg AFB, CA | (Goldcraft Cachets) cachet on cover | KH4-12 launch |
| United States | 1962-09-17 | Vandenberg AFB, CA | (SpaceCraft Type-C general-purpose and red rubber-stamp) cachet on cover | KH4-12 launch |
| United States | 1962-09-17 | Vandenberg AFB, CA | (Holden black and magenta and red rubber-stamp and black typed) cachet on cover | KH4-12 launch |
| 1962-09-29: KH4-13 | ||||
| United States | 1962-09-29 | Lompoc CA | (SpaceCraft/Swanson) cachet on cover, also insert | KH4-13 launch (but Transit-2A depicted) |
| United States | 1962-09-29 | Vandenberg AFB, CA | (Holden blue and magenta) cachet on (airmail) cover | KH4-13 launch |
| United States | 1962-09-29 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH4-13 launch |
| 1962-11-05: KH4-14 | ||||
| United States | 1962-11-05 | Vandenberg AFB, CA | (Goldcraft Cachets) cachet on cover | KH4-14 launch |
| United States | 1962-11-05 | Vandenberg AFB, CA | (Swanson/DuBeau? green and magenta rubber-stamp) cachet on cover | KH4-14 launch ("secret") |
| United States | 1962-11-05 | Vandenberg AFB, CA | (Holden black and magenta rubber-stamp) cachet on cover | KH4-14 launch |
| United States | 1962-11-05 | Vandenberg AFB, CA | (Holden blue and magenta rubber-stamp) cachet on (airmail) cover | KH4-14 launch |
| 1962-11-24: KH4-15 | ||||
| United States | 1962-11-24 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4-15 launch |
| United States | 1962-11-24 | Vandenberg AFB, CA | (SpaceCraft Type-C general-purpose and blue rubber-stamp) cachet on cover | KH4-15 launch |
| 1962-12-04: KH4-16 | ||||
| United States | 1962-12-04 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and blue rubber-stamp) cachet on cover | KH4-16 launch |
| 1963-01-07: KH4-18 | ||||
| United States | 1963-01-07 | Vandenberg AFB, CA | (Vandy?/DuBeau? red satellite-launch and blue rubber-stamp) cachet on cover | KH4-18 launch |
| 1963-03-18: KH6-1 (and P11-4051) [failed] | ||||
| United States | 1963-03-18 | Vandenberg AFB, CA | (Vandy?/DuBeau? magenta satellite-launch and magenta rubber-stamp) cachet on cover | KH6-1 launch [failed] |
| 1963-04-01: KH4-20 | ||||
| United States | 1963-04-01 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and red rubber-stamp) cachet on cover | KH4-20 launch |
| 1963-04-26: KH5-8 [failed] [DSAP-1-F4 launched separately on same day also at Vandenberg AFB, CA] |
||||
| United States | 1963-04-26 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH5-8 launch [failed] |
| 1963-05-18: KH6-2 | ||||
| United States | 1963-05-18 | Vandenberg AFB, CA | (Black printed) cachet on cover | KH6-2 launch ("secret satellite") |
| United States | 1963-05-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and red rubber-stamp) cachet on cover | KH6-2 launch |
| United States | 1963-05-18 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta rubber-stamp) cachet on cover | KH6-2 launch ("secret payload") |
| 1963-06-12: KH4-21 | ||||
| United States | 1963-06-12 | Vandenberg AFB, CA | (Black printed) cachet on cover | KH4-21 launch ("secret satellite") |
| United States | 1963-06-12 | Vandenberg AFB, CA | (Swanson/DuBeau? red rubber-stamp) cachet on cover | KH4-21 launch |
| United States | 1963-06-12 | Vandenberg AFB, CA | (Printed sticker and hand-printed) cachet on cover | KH4-21 launch |
| 1963-06-26: KH4-22 (and P11-4201) | ||||
| United States | 1963-06-26 | Vandenberg AFB, CA | (Rank velvet) cachet on cover | KH4-22 launch ("Hitch-hiker" in text) |
| United States | 1963-06-26 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp and black typed) cachet on cover | KH4-22 launch ("secret satellite") |
| United States | 1963-06-26 | Vandenberg AFB, CA | (Sarzin) cachet on cover | KH4-22 launch (not "Discoverer" as in text; "secret satellite") |
| United States | 1963-06-26 | Vandenberg AFB, CA | (Red printed) cachet on cover | KH4-22 launch ("secret satellite") |
| 1963-07-19: KH4-23 [MIDAS-9 launched separately on same day also at Vandenberg AFB, CA] |
||||
| United States | 1963-07-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and magenta rubber-stamp) cachet on cover | KH4-23 and MIDAS-9 launch (separate launches) |
| United States | 1963-07-18 | Vandenberg AFB, CA | (Orbit Covers, no logo) cachet on cover | MIDAS-9 launch [only or both MIDAS-9 and KH4-23] ("spy in the sky") |
| United States | 1963-07-18 | Vandenberg AFB, CA | (Sarzin) cachet on cover | MIDAS-9 launch [only, or both MIDAS-9 and KH4-23] ("secret experiments in space") |
| 1963-08-25: KH4A-1 | ||||
| United States | 1963-08-24 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and cyan rubber-stamp) cachet on cover | KH4A-1 launch |
| 1963-08-29: KH5-9 (and Lampo) | ||||
| United States | 1963-08-29 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and magenta rubber-stamp) cachet on cover | KH5-9 launch |
| 1963-09-06: KH7-2 | ||||
| United States | 1963-09-06 | Vandenberg AFB, CA | (Sarzin) cachet on cover | KH7-2 launch ("spy in the sky satellite") |
| 1963-09-23: KH4A-2 | ||||
| United States | 1963-09-23 | Vandenberg AFB, CA | (Swanson/DuBeau? green rubber-stamp) cachet on cover | KH4A-2 launch |
| 1963-10-25: KH7-3 | ||||
| United States | 1963-10-25 | Vandenberg AFB, CA | (Orbit Covers, no logo) cachet on cover | KH7-3 launch ("spy in the sky" and "secret satellite") |
| 1963-10-29: KH5-10 (and P11-4001) | ||||
| United States | 1963-10-29 | Vandenberg AFB, CA | (Black rubber-stamp) cachet on cover | KH5-10 launch ("secret satellite") |
| 1963-11-09: KH4-24 (and RM-5) | ||||
| United States | 1963-11-09 | Vandenberg AFB, CA | (Green rubber-stamp) cachet on cover | KH4-24 launch ("secret satellite") |
| 1963-11-27: KH4-25 | ||||
| United States | 1963-11-27 | Vandenberg AFB, CA | (Sarzin) cachet on cover | KH4-25 launch (not "Discoverer" as in text) |
| 1963-12-18: KH7-4 | ||||
| United States | 1963-12-18 | Vandenberg AFB, CA | (Orbit Covers, no logo) cachet on cover | KH7-4 launch ("spy in the sky" and "secret satellite") |
| 1963-12-21: KH4-26 (and P11-4101) | ||||
| United States | 1963-12-21 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and red rubber-stamp) cachet on cover | KH4-26 launch |
| 1964-02-15: KH4A-3 | ||||
| United States | 1964-02-15 | Vandenberg AFB, CA | (Swanson/DuBeau? cyan and red rubber-stamp) cachet on cover | KH4A-3 launch |
| 1964-02-25: KH7-5 | ||||
| United States | 1964-02-25 | Vandenberg AFB, CA | (Swanson/DuBeau? cyan and black rubber-stamp) cachet on cover | KH7-5 launch |
| 1964-03-11: KH7-6 | ||||
| United States | 1964-03-11 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and magenta rubber-stamp) cachet on cover | KH7-6 launch |
| United States | 1964-03-11 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and magenta and black rubber-stamp) cachet on cover | KH7-6 launch ("secret satellite") |
| 1964-04-23: KH7-7 | ||||
| United States | 1964-04-23 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta and black rubber-stamp) cachet on cover | KH7-7 launch |
| 1964-04-27: KH4A-5 | ||||
| United States | 1964-04-27 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-5 launch |
| 1964-05-19: KH7-8 | ||||
| United States | 1964-05-19 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and black rubber-stamp) cachet on cover | KH7-8 launch |
| 1964-06-04: KH4A-6 | ||||
| United States | 1964-06-04 | Vandenberg AFB, CA | (Sokalsky blue, and blue rubber-stamp) cachet on cover | KH4A-6 launch ("secret") |
| United States | 1964-06-04 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta rubber-stamp) cachet on cover | KH4A-6 launch |
| 1964-06-13: KH5-11 (and Starflash-1) | ||||
| United States | 1964-06-13 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH5-11 launch |
| 1964-06-19: KH4A-7 | ||||
| United States | 1964-06-19 | Vandenberg AFB, CA | (Swanson/DuBeau? cyan rubber-stamp) cachet on cover | KH4A-7 launch |
| 1964-07-06: KH7-9 | ||||
| United States | 1964-07-06 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta rubber-stamp) cachet on cover | KH7-9 launch |
| 1965-01-23: KH7-15 | ||||
| United States | 1965-01-23 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and red and black rubber-stamp) cachet on cover | KH7-15 launch ("secret firing") |
| 1965-04-29: KH4A-19 | ||||
| United States | 1965-04-29 | Vandenberg AFB, CA | (Goldcraft) cachet on cover | KH4A-19 launch ("secret satellite") |
| 1965-05-18: KH4A-20 | ||||
| United States | 1965-05-18 | Vandenberg AFB, CA | (Goldcraft Cachets) cachet on cover | KH4A-20 launch ("secret satellite") |
| 1965-06-25: KH7-19 | ||||
| United States | 1965-06-25 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH7-19 launch |
| 1965-07-12: KH7-20 [failed] | ||||
| United States | 1965-07-12 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and magenta rubber-stamp) cachet on cover | KH7-20 launch [failed] |
| 1965-07-19: KH4A-22 | ||||
| United States | 1965-07-19 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-22 launch |
| 1965-08-17: KH4A-23 | ||||
| United States | 1965-08-17 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta and blue rubber-stamp) cachet on cover | KH4A-23 launch |
| 1965-09-22: KH4A-24 | ||||
| United States | 1965-09-22 | Vandenberg AFB, CA | (HJM black and Swanson/DuBeau? black rubber-stamp) cachet on cover | KH4A-24 launch |
| 1965-09-30: KH7-22 | ||||
| United States | 1965-09-30 | Vandenberg AFB, CA | (HJM black and Swanson/DuBeau? red and blue rubber-stamp) cachet on cover | KH7-22 launch |
| 1965-10-05: KH4A-25 | ||||
| United States | 1965-10-05 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta rubber-stamp) cachet on cover | KH4A-25 launch |
| 1965-11-08: KH7-23 | ||||
| United States | 1965-11-08 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH7-23 launch |
| United States | 1965-11-08 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and black rubber-stamp) cachet on cover | KH7-23 launch |
| 1966-02-15: KH7-25 (and Bluebell-2C/2S) | ||||
| United States | 1966-02-15 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and blue rubber-stamp) cachet on cover | KH7-25 launch |
| 1966-03-09: KH4A-30 | ||||
| United States | 1966-03-09 | Vandenberg AFB, CA | (Vandy?/DuBeau? purple rubber-stamp) cachet on cover | KH4A-30 launch |
| 1966-03-18: KH7-26 (and NRL-PL-137) | ||||
| United States | 1966-03-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH7-26 launch ("secret satellite") |
| 1966-04-07: KH4A-31 | ||||
| United States | 1966-04-07 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-31 launch ("secret satellite") |
| 1966-05-03: KH4A-32 [failed] | ||||
| United States | 1966-05-03 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH4A-32 launch [failed] ("secret satellite") |
| 1966-05-14: KH7-28 (and P11-4404) | ||||
| United States | 1966-05-14 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH7-28 launch ("secret satellite") |
| 1966-05-24: KH4A-33 | ||||
| United States | 1966-05-23 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-33 launch ("secret satellite") |
| 1966-06-03: KH7-29 | ||||
| United States | 1966-06-03 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH7-29 launch ("secret satellite") |
| 1966-06-21: KH4A-34 | ||||
| United States | 1966-06-21 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-34 launch ("secret satellite") |
| 1966-07-29: KH8-1 | ||||
| United States | 1966-07-29 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-1 launch ("secret satellite") |
| 1966-08-09: KH4A-364 | ||||
| United States | 1966-08-09 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-36 launch ("secret satellite") |
| 1966-08-16: KH7-31 | ||||
| United States | 1966-08-16 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH7-31 launch ("secret satellite") |
| 1966-09-17: KH7-32 (and P11-4406) | ||||
| United States | 1966-09-17 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH7-32 launch ("secret satellite") |
| 1966-09-20: KH4A-354 [Surveyor-2 launched separately on same day at Cape Canaveral FL] |
||||
| United States | 1966-09-20 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-35 launch ("secret satellite") |
| 1966-09-28: KH8-2 | ||||
| United States | 1966-09-28 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH8-2 launch ("secret satellite") |
| 1966-12-14: KH8-3 | ||||
| United States | 1966-12-14 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH8-3 launch |
| 1967-01-14: KH4A-38 | ||||
| United States | 1967-01-14 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH4A-38 launch |
| 1967-02-02: KH7-36 | ||||
| United States | 1967-02-02 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and blue rubber-stamp) cachet on cover | KH7-36 launch |
| 1967-02-22: KH4A-39 | ||||
| United States | 1967-02-22 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH4A-39 launch ("secret payload") |
| 1967-02-24: KH8-4 | ||||
| United States | 1967-02-24 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH8-4 launch |
| 1967-03-30: KH4A-40 | ||||
| United States | 1967-03-30 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH4A-40 launch ("secret payload") |
| United States | 1967-03-30 | Vandenberg AFB, CA | (Swanson/DuBeau? red rubber-stamp) cachet on cover | KH4A-40 launch ("secret payload") |
| 1967-04-26: KH8-5 [failed] | ||||
| United States | 1967-04-26 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH8-5 launch [failed] |
| 1967-05-09: KH4A-41 (and P11-4408) | ||||
| United States | 1967-05-09 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-41 launch ("secret payload") |
| 1967-05-22: KH7-37 (and LOGACS) | ||||
| United States | 1967-05-22 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH7-37 launch ("secret satellite") |
| 1967-06-04: KH7-38 | ||||
| United States | 1967-06-04 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH7-38 launch ("secret satellite") |
| 1967-06-16: KH4A-42 (and P11-4409) | ||||
| United States | 1967-06-16 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-42 launch ("secret payload") |
| 1967-06-20: KH8-6 | ||||
| United States | 1967-06-20 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-6 launch |
| 1967-08-07: KH4A-43 (and RM-12/15 and SXS) | ||||
| United States | 1967-08-07 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-43 launch ("secret payload") |
| 1967-08-16: KH8-7 | ||||
| United States | 1967-08-16 | Vandenberg AFB, CA | (Orbit Covers) cachet on cover | KH8-7 launch ("USAF secret satellite" and "spy-sky mission") |
| 1967-09-15: KH4B-1 | ||||
| United States | 1967-09-15 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-1 launch |
| 1967-09-19: KH8-8 | ||||
| United States | 1967-09-19 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on (airmail) cover | KH8-8 launch |
| 1967-10-25: KH8-9 | ||||
| United States | 1967-10-25 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH8-9 launch |
| 1967-11-02: KH4A-44 (and P11-4410) | ||||
| United States | 1966-11-02 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-44 launch ("secret satellite") |
| 1967-12-05: KH8-10 | ||||
| United States | 1967-12-05 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta rubber-stamp) cachet on cover | KH8-10 launch |
| United States | 1967-12-05 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH8-10 launch |
| United States | 1967-12-05 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on (airmail) cover | KH8-10 launch |
| 1967-12-09: KH4B-2 | ||||
| United States | 1967-12-09 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-2 launch |
| 1968-01-18: KH8-11 | ||||
| United States | 1968-01-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-11 launch |
| 1968-01-24: KH4A-45 | ||||
| United States | 1968-01-24 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-45 launch ("secret satellite") |
| 1968-03-14: KH4A-46 | ||||
| United States | 1968-03-14 | Vandenberg AFB, CA | (Swanson/DuBeau? magenta rubber-stamp) cachet on cover | KH4A-46 launch |
| 1968-04-17: KH8-13 | ||||
| United States | 1968-04-17 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-13 launch ("secret satellite") |
| 1968-06-05: KH8-14 | ||||
| United States | 1968-06-05 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-14 launch ("secret satellite") |
| 1968-06-20: KH4A-47 (and P11-4420) | ||||
| United States | 1968-06-20 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-47 launch ("secret satellite") |
| 1968-08-06: KH8-15 [Canyon-1 launched separately on same day at Cape Canaveral FL] |
||||
| United States | 1968-08-06 | Vandenberg AFB, CA | (Swanson/DuBeau? cyan rubber-stamp) cachet on cover | KH8-15 launch ("secret satellite") |
| United States | 1968-08-06 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and black rubber-stamp) cachet (different) on cover | KH8-15 launch |
| 1968-08-07: KH4B-4 | ||||
| United States | 1968-08-07 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-4 launch |
| 1968-09-10: KH8-16 | ||||
| United States | 1968-09-10 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on (airmail) cover | KH8-16 launch ("secret satellite") |
| 1968-09-18: KH4A-48 (and P11-4413) | ||||
| United States | 1968-09-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and black rubber-stamp) cachet on cover | KH4A-48 launch ("secret") |
| United States | 1968-09-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and black rubber-stamp) cachet on (airmail) cover | KH4A-48 launch ("secret") |
| United States | 1968-09-18? | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH4A-48 launch |
| 1968-11-03: KH4B-5 | ||||
| United States | 1968-11-03 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-5 launch |
| 1968-11-06: KH8-17 | ||||
| United States | 1968-11-06 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-17 launch ("secret satellite") |
| United States | 1968-11-06 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on (airmail) cover | KH8-17 launch ("secret satellite") |
| United States | 1968-11-06 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on (airmail, different) cover | KH8-17 launch ("secret satellite") |
| 1968-12-04: KH8-18 [partial failure] | ||||
| United States | 1968-12-04 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-18 launch ("secret...satellite") [partial failure] |
| 1968-12-12: KH4A-49 (and P801-1) | ||||
| United States | 1968-12-12 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-49 launch ("secret ... satellite") |
| 1969-01-22: KH8-19 | ||||
| United States | 1969-01-22 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and magenta rubber-stamp) cachet on cover | KH8-19 launch |
| 1969-02-05: KH4B-6 (and P801-2) | ||||
| United States | 1969-02-05 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-6 launch ("secret...satellite") |
| 1969-03-04: KH8-20 | ||||
| United States | 1969-03-04 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-20 launch ("secret payload") |
| 1969-03-19: KH4A-50 (and P11-4418) | ||||
| United States | 1969-03-19 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-50 launch ("secret payload") |
| 1969-04-15: KH8-21 | ||||
| United States | 1969-04-15 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-21 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1969-04-15 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on (airmail) cover | KH8-21 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1969-05-01: KH4A-51 (and P11-4417) | ||||
| United States | 1969-05-01 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4A-51 launch ("secret satellite") |
| 1969-06-03: KH8-22 | ||||
| United States | 1969-06-03 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-22 launch ("secret satellite") |
| 1969-07-24: KH4B-7 | ||||
| United States | 1969-07-23 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-7 launch ("secret satellite" and "secret payload") |
| 1969-08-22: KH8-23 | ||||
| United States | 1969-08-22 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover, also cachet detail | KH8-23 launch ("secret satellite") |
| 1969-09-22: KH4A-52 (and P11-4419) | ||||
| United States | 1969-09-22 | Vandenberg AFB, CA | (Swanson/DuBeau? blue and magenta rubber-stamp) cachet on cover | KH4A-52 launch ("secret") |
| United States | 1969-09-22 | Vandenberg AFB, CA | (MACC blue and red and Swanson/DuBeau? blue and magenta rubber-stamp) cachet on cover | KH4A-52 launch ("secret") |
| 1969-10-24: KH8-24 | ||||
| United States | 1969-10-24 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-24 launch ("secret satellite") |
| 1969-12-04: KH4B-8 | ||||
| United States | 1969-12-04 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-8 launch ("secret satellite") |
| 1970-01-14: KH8-25 | ||||
| United States | 1970-01-14 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-25 launch ("secret satellite" and "secret payload") |
| 197-03-04: KH4B-9 | ||||
| United States | 1970-03-04 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-9 launch ("secret satellite") |
| United States | 1970-03-04 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-9 launch ("secret satellite") |
| 1970-04-15: KH8-26 | ||||
| United States | 1970-04-15 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-26 launch ("secret satellite") |
| 1970-05-20: KH4B-10 (and P11-4421) | ||||
| United States | 1970-05-20 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and magenta rubber-stamp) cachet on cover | KH4B-10 launch ("secret payload") |
| United States | 1970-05-20 | Lompoc CA, Vandenberg AFB | (Vandy?/DuBeau? blue satellite-lauch and magenta rubber-stamp) cachet on (airmail) cover | KH4B-10 launch ("secret payload") |
| 1970-08-25: KH8-27 | ||||
| United States | 1970-08-25 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-27 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1970-07-22: KH4B-11 | ||||
| United States | 1970-07-22 | Lompoc CA, Vandenberg AFB | (Space Voyage) cachet on cover, also insert | KH4B-11 launch |
| United States | 1970-07-22 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-11 launch |
| United States | 1970-07-22 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on (airmail) cover | KH4B-11 launch |
| 1970-08-18: KH8-28 | ||||
| United States | 1970-08-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-28 launch |
| 1970-10-23: KH8-29 | ||||
| United States | 1970-10-23 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-29 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1970-10-23 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson cyan rubber-stamp) cachet on (airmail) cover | KH8-29 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1970-11-18: KH4B-12 (and P11-4423) | ||||
| United States | 1970-11-18 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and blue rubber-stamp) cachet on cover | KH4B-12 launch ("secret") |
| United States | 1970-11-18 | Lompoc CA, Vandenberg AFB | (Vandy?/DuBeau? blue satellite-launch and blue rubber-stamp) cachet on (airmail) cover | KH4B-12 launch ("secret") |
| 1971-01-21: KH8-30 | ||||
| United States | 1971-01-21 | Lompoc CA, Vandenberg AFB | (Space Voyage) cachet on cover, also insert | KH8-30 launch (not "Super SAMOS" or "continues SAMOS-80" or "SAMOS-81" as in text) |
| United States | 1971-01-21 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson cyan rubber-stamp) cachet on cover | KH8-30 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1971-02-17: KH4B-13 (and P801-3) [failed] | ||||
| United States | 1971-02-17 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH4B-13 launch [failed] (but ESRO-2A1 depicted); ("secret satellite") |
| 1971-03-24: KH4B-14 | ||||
| United States | 1971-03-24 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson cyan rubber-stamp) cachet on cover | KH4B-14 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1971-03-24 | Vandenberg AFB, CA | (DuBeau?/Swanson cyan rubber-stamp) cachet on cover | KH4B-14 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1971-04-22: KH8-31 | ||||
| United States | 1971-04-22 | Lompoc CA, Vandenberg AFB | (Space Voyage) cachet on cover, also insert | KH8-31 launch (not "SAMOS-82" as on front); (also "SAMOS-81" on insert is actually KH8-30) |
| United States | 1971-04-22 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-31 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1971-04-22 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-31 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1971-06-15: KH9-1 | ||||
| United States | 1971-06-15 | Lompoc CA, Vandenberg AFB | (Space Voyage) cachet on cover, also insert | KH9-1 launch ("Big Bird"2; not "Advanced SAMOS" as in text; "467 program") |
| United States | 1971-06-15 | Lompoc CA, Vandenberg AFB | (InterSpace Cover) cachet on cover, also insert | KH9-1 launch ("Big Bird"2; not "Advanced SAMOS" as in text; "467 program") |
| United States | 1971-06-15 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH9-1 launch ("secret satellite") |
| 1971-09-10: KH4B-15 | ||||
| United States | 1971-09-10 | Vandenberg AFB, CA | (Vandy?/DuBeau? black satellite-launch and black rubber-stamp) cachet on cover | KH4B-15 launch ("secret payload") |
| 1971-10-23: KH8-33 | ||||
| United States | 1971-10-23 | Vandenberg AFB, CA | (Swanson/DuBeau?) cachet on cover | KH8-33 launch ("secret satellite") |
| 1972-01-20: KH9-2 (and P11-4424) | ||||
| United States | 1972-01-20 | Lompoc CA, Vandenberg AFB | (Space Voyage) cachet on cover | KH9-2 launch ("second Big Bird" (Big Bird-2)2; not "Advanced SAMOS" as in text); ("piggyback electronic intelligence [elint] monitor") |
| United States | 1972-01-20 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue satellite-launch and blue rubber-stamp) cachet on cover | KH9-2 launch ("secret") |
| 1972-03-17: KH8-34 | ||||
| United States | 1972-03-17 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson black rubber-stamp) cachet on cover | KH8-34 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1972-03-17 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson black rubber-stamp) cachet on (airmail) cover | KH8-34 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1972-03-17 | Vandenberg AFB, CA | (DuBeau?/Swanson black rubber-stamp) cachet on cover | KH8-34 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1972-03-17 | Lompoc CA, Vandenberg AFB | (Space Voyage) cachet on cover, also insert | KH8-34 launch (not "SAMOS-87" as in text, or "SAMOS-80" and "SAMOS-85" as in insert text) |
| 1972-04-19: KH4B-16 | ||||
| United States | 1972-04-19 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-16 launch ("secret satellite") |
| United States | 1972-04-19 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH4B-16 launch ("secret satellite") |
| United States | 1972-04-19 | Vandenberg AFB, CA | (Swanson/DuBeau? blue-green rubber-stamp) cachet on cover | KH4B-16 launch ("secret satellite") |
| 1972-05-20: KH8-35 [failed] | ||||
| United States | 1972-05-20 | Vandenberg AFB, CA | (Vandy?/DuBeau? black satellite-launch and black rubber-stamp) cachet on cover | KH8-35 launch [failed] ("secret") |
| United States | 1972-05-20 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH8-35 launch [failed] ("secret satellite") |
| United States | 1972-05-20 | Vandenberg AFB, CA | (InterSpace Cover brown and red) cachet on cover | KH8-35 launch [failed] (not "SAMOS" as in text) |
| United States | 1972-05-20 | Vandenberg AFB, CA | (Space Voyage brown and orange) cachet on cover | KH8-35 launch [failed] (not "SAMOS" as in text) |
| 1972-05-25: KH4B-17 | ||||
| United States | 1972-05-25 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH4B-17 launch ("secret satellite") |
| United States | 1972-05-25 | Vandenberg AFB, CA | (Centennial) cachet (no rocket image) on cover | KH4B-17 launch ("secret satellite") |
| United States | 1972-05-25 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH4B-17 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1972-05-25 | Vandenberg AFB, CA | (DuBeau?/Swanson green rubber-stamp) cachet on cover | KH4B-17 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1972-05-25 | Vandenberg AFB, CA | (Space Voyage) cachet on cover, also insert | KH4B-17 launch ("On May 20, an attempt to launch a high-resolution SAMOS recon/survey mission...failed", refers to KH8-35); ("'search and find' recon satellite") |
| 1972-07-07: KH9-3 (and P11-4425) | ||||
| United States | 1972-07-07 | Vandenberg AFB, CA | (Space Voyage) cachet on cover, also insert | KH9-3 launch ("Big Bird-3"2, "Project 467"; not "SAMOS-88" as in text, "project 467", "ELINT companion", all on front; "The first of the series, launched on June 15, 1971" (refers to KH9-1), "mission number two, launched on Jan 20, 1972" (refers to KH9-2), "The May 20 "SAMOS failure" (refers to KH8-35), "was followed on May 25" (refers to KH4B-17), all in insert text) |
| United States | 1972-07-07 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH9-3 launch ("secret spy satellite") |
| United States | 1972-07-07 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH9-3 launch ("secret satellite") |
| United States | 1972-07-10 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | KH9-3 launch ("secret satellite") |
| United States | 1972-07-10 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on (airmail) cover | KH9-3 launch ("secret satellite") |
| 1972-09-01: KH8-36 | ||||
| United States | 1972-09-01 | Vandenberg AFB, CA | (Space Voyage) cachet on cover, also insert | KH8-36 launch (not "SAMOS-89" as in text); ("super spy") |
| United States | 1972-09-01 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-36 launch (but ESRO-2A1 depicted); ("secret satellite launch") |
| United States | 1972-09-01 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-36 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1972-09-01 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH8-36 launch ("secret satellite") |
| United States | 1972-09-01 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH8-36 launch ("secret satellite") |
| 1972-10-10: KH9-4 (and P801-4) | ||||
| United States | 1972-10-10 | Lompoc CA, Vandenberg AFB | (Vandy printed/typed) cachet on cover | KH9-4 launch ("secret satellite") |
| United States | 1972-10-10 | Vandenberg AFB, CA | (Vandy printed/typed) cachet on cover | KH9-4 launch ("secret satellite") |
| United States | 1972-10-10 | Vandenberg AFB, CA | (Vandy printed/typed) cachet on (airmail) cover | KH9-4 launch ("secret satellite") |
| United States | 1972-10-10 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-4 launch ("Big Bird-4"2, "Project 467"; not "Advanced SAMOS (90)" (SAMOS-90) |
| United States | 1972-10-10 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH9-4 launch ("Big Bird-4"2, "Project 467"; not "Advanced SAMOS (90)" (SAMOS-90) |
| 1972-12-21: KH8-37 [Canyon-5 launched separately on same day at Cape Canaveral FL] |
||||
| United States | 1972-12-21 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH8-37 launch ("secret satellite") |
| United States | 1972-12-21 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH8-37 launch ("secret satellite") |
| United States | 1972-12-21 | Vandenberg AFB, CA | (Space Voyage) cachet on cover, also insert | KH8-37 launch (not "SAMOS-91" as in text; "Big Bird"2 on insert) |
| United States | 1972-12-21 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover, also insert | KH8-37 launch (not "SAMOS-91" as in text; "Big Bird"2 on insert) |
| 1973-03-09: KH9-5 | ||||
| United States | 1973-03-09 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-5 launch (not "SAMOS-92" as in text; "spy reconnaissance") |
| United States | 1973-03-09 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH9-5 launch (not "SAMOS-92" as in text; "spy reconnaissance") |
| United States | 1973-03-09 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH9-5 launch ("secret satellite") |
| United States | 1973-03-09 | Vandenberg AFB, CA | (Swanson/DuBeau? cyan rubber-stamp) cachet on cover | KH9-5 launch ("secret satellite") |
| United States | 1973-03-09 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH9-5 launch ("secret satellite") |
| 1973-05-16: KH8-38 | ||||
| United States | 1973-05-16 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-38 launch (not "SAMOS-93" as in text) |
| United States | 1973-05-16 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH8-38 launch (not "SAMOS-93" as in text) |
| United States | 1973-05-16 | Lompoc CA, Vandenberg AFB | (DuBeau?/Swanson black rubber-stamp) cachet on cover | KH8-38 launch (but ESRO-2A1 depicted); ("secret satellite") |
| United States | 1973-05-16 | Vandenberg AFB, CA | (DuBeau?/Swanson black rubber-stamp) cachet on cover | KH8-38 launch (but ESRO-2A1 depicted); ("secret satellite") |
| 1973-06-26: KH8-39 [failed] | ||||
| United States | 1973-06-26 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH8-39 launch [failed] ("secret satellite") |
| United States | 1973-06-26 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? black rubber-stamp) cachet on cover | KH8-39 launch [failed] ("secret satellite") |
| United States | 1973-06-26 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-39 launch [failed] (not "SAMOS" as in text) |
| United States | 1973-06-26 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH8-39 launch [failed] (not "SAMOS" as in text) |
| 1973-07-13: KH9-6 | ||||
| United States | 1973-07-13 | Vandenberg AFB, CA | (DuBeau? black rubber-stamp) cachet on cover | KH9-6 launch ("secret satellite") |
| United States | 1973-07-13 | Lompoc CA, Vandenberg AFB | (DuBeau? black rubber-stamp) cachet on cover | KH9-6 launch ("secret satellite") |
| United States | 1973-07-13 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-6 launch ("Big Bird-6"2, "Project 467"; not "SAMOS-94" as in text) |
| United States | 1973-07-13 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH9-6 launch ("Big Bird-6"2, "Project 467"; not "SAMOS-94" as in text) |
| 1973-11-10: KH9-7 (and P11-4426 and P801-5) | ||||
| United States | 1973-11-10 | Vandenberg AFB, CA | (Vandy?/DuBeau? black rubber-stamp) cachet on cover | KH9-7 launch |
| United States | 1973-11-10 | Lompoc CA, Vandenberg AFB | (Vandy?/DuBeau? black rubber-stamp) cachet on cover | KH9-7 launch |
| United States | 1973-11-10 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-7 launch ("Big Bird-7"2; not "SAMOS-96", as in text; "elint monitor") |
| United States | 1973-11-10 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH9-7 launch ("Big Bird-7"2; not "SAMOS-96", as in text; "elint monitor") |
| 1974-02-13: KH8-41 | ||||
| United States | 1974-02-13 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-41 launch (not "SAMOS-97" as in text) |
| United States | 1974-02-13 | Vandenberg AFB, CA | (DuBeau? purple rubber-stamp) cachet on cover | KH8-41 launch ("secret satellite") |
| United States | 1974-02-13 | Lompoc CA, Vandenberg AFB | (DuBeau? purple rubber-stamp) cachet on cover | KH8-41 launch ("secret satellite") |
| 1974-04-10: KH9-8 (and P11-4428 and IRCB) | ||||
| United States | 1974-04-10 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-8 launch ("Big Bird-8"2; not "SAMOS-98" as in text) |
| United States | 1974-04-10 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH9-8 launch ("Big Bird-8"2; not "SAMOS-98" as in text) |
| United States | 1974-04-10 | Vandenberg AFB, CA | (DuBeau? blue rubber-stamp) cachet on cover | KH9-8 launch ("secret satellite") |
| United States | 1974-04-10 | Lompoc CA, Vandenberg AFB | (DuBeau? blue rubber-stamp) cachet on cover | KH9-8 launch ("secret satellite") |
| 1974-06-06: KH8-42 | ||||
| United States | 1974-06-06 | Vandenberg AFB, CA | (DuBeau?/Swanson blue rubber-stamp) cachet on cover | KH8-42 launch (but ESRO-2A1 depicted) |
| United States | 1974-06-06 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-42 launch (not "SAMOS-99" as in text) |
| United States | 1974-06-06 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH8-42 launch (not "SAMOS-99" as in text) |
| 1974-08-14: KH8-43 | ||||
| United States | 1974-08-14 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-43 launch (not "SAMOS-100" as in text) |
| United States | 1974-08-14 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH8-43 launch (not "SAMOS-100" as in text) |
| United States | 1974-08-14 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-43 launch ("secret satellite") |
| United States | 1974-08-14 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH8-43 launch ("secret satellite") |
| 1974-10-29: KH9-9 (and P11-4429 and S3-1) | ||||
| United States | 1974-10-29 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-9 launch ("Big Bird-9"2; not "SAMOS-101" as in text) |
| United States | 1974-10-29 | Vandenberg AFB, CA | (InterSpace Cover) cachet on cover | KH9-9 launch ("Big Bird-9"2; not "SAMOS-101" as in text) |
| United States | 1974-10-29 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH9-9 launch ("secret satellite") |
| United States | 1974-10-29 | Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | KH9-9 launch ("secret satellite") |
| 1975-04-18: KH8-44 | ||||
| United States | 1975-04-18 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-44 launch ("Big Bird"2; not "SAMOS-102" as in text) |
| United States | 1975-04-18 | Talkeetna AK | (Black printed) cachet on cover | KH8-44 launch |
| United States | 1975-04-18 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue rubber-stamp) cachet on cover | KH8-44 launch |
| 1975-06-08: KH9-10 (and P226-1) | ||||
| United States | 1975-06-08 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-10 launch ("Big Bird-10"2; not "SAMOS-103" as in text) |
| 1975-10-09: KH8-45 | ||||
| United States | 1975-10-09 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-45 launch (not "SAMOS-104" as in text) |
| United States | 1975-10-09 | Vandenberg AFB, CA | (Vandy cyan rubber-stamp) cachet on cover | KH8-45 launch |
| United States | 1975-10-09 | Lompoc CA, Vandenberg AFB | (Vandy cyan rubber-stamp) cachet on cover | KH8-45 launch |
| 1975-12-04: KH9-11 (and S3-2) | ||||
| United States | 1975-12-04 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-11 launch ("Big Bird-11"2; not "SAMOS-105" or "Advanced SAMOS" as in text) |
| United States | 1975-12-04 | Vandenberg AFB, CA | (DuBeau? black rubber-stamp) cachet on cover | KH9-11 launch |
| 1976-03-22: KH8-46 | ||||
| United States | 1976-03-22 | Lompoc CA, Vandenberg AFB | (DuBeau? blue rubber-stamp) cachet on cover | KH8-46 launch (not "Defense Meteorological Satellite" as in text) |
| United States | 1976-03-22 | Lompoc CA, Vandenberg AFB | (DuBeau? blue rubber-stamp) cachet on (airmail) cover | KH8-46 launch (not "Defense Meteorological Satellite" as in text) |
| United States | 1976-03-22 | Vandenberg AFB, CA | (DuBeau? blue rubber-stamp) cachet on cover | KH8-46 launch (not "Defense Meteorological Satellite" as in text) |
| United States | 1976-03-22 | Vandenberg AFB, CA | (DuBeau? blue rubber-stamp) cachet on (airmail) cover | KH8-46 launch (not "Defense Meteorological Satellite" as in text) |
| United States | 1976-03-22 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-46 launch ("Big Bird"2; not "SAMOS-106" as in text) |
| 1976-07-08: KH9-12 (and P11-4430 and S3-3) | ||||
| United States | 1976-07-08 | Vandenberg AFB, CA | (DuBeau? blue rubber-stamp) cachet on cover | KH9-12 launch ("secret launch") |
| United States | 1976-07-08 | Vandenberg AFB, CA | (DuBeau? blue rubber-stamp) cachet on (airmail) cover | KH9-12 launch ("secret launch") |
| United States | 1976-07-08 | Lompoc CA, Vandenberg AFB | (DuBeau? blue rubber-stamp) cachet on cover | KH9-12 launch ("secret launch") |
| United States | 1976-07-08 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-12 launch ("Big Bird-12"2; not "SAMOS-107" as in text) |
| 1976-09-15: KH8-47 | ||||
| United States | 1976-09-15 | Vandenberg AFB, CA | (Vandy?/DuBeau? red variation satellite-launch rubber-stamp) cachet on cover | KH8-47 launch (but ATS-6 depicted; "secret payload") |
| United States | 1976-09-15 | Vandenberg AFB, CA | (Vandy?/DuBeau? red variation satellite-launch rubber-stamp) cachet on (airmail) cover | KH8-47 launch (but ATS-6 depicted; "secret payload") |
| United States | 1976-09-15 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-47 launch ("Big Bird"2; not "SAMOS-108" as in text) |
| 1976-12-19: KH11-1 | ||||
| United States | 1976-12-19 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH11-1 launch ("Big Bird-13"2; not "SAMOS-109" as in text) |
| United States | 1976-12-19 | Vandenberg AFB, CA | (DuBeau? magenta) cachet on cover | KH11-1 launch ("secret instrumentation satellite") |
| United States | 1976-12-19 | Vandenberg AFB, CA | (DuBeau? red) cachet on (airmail) cover | KH11-1 launch ("secret instrumentation satellite") |
| 1977-03-13: KH8-48 | ||||
| United States | 1977-03-13 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-48 launch ("Big Bird"2; not "SAMOS-110" as in text) |
| United States | 1977-03-13 | Vandenberg AFB, CA | (Vandy?/DuBeau? blue rubber-stamp) cachet on cover | KH8-48 launch |
| United States | 1977-03-13 | Vandenberg AFB, CA | (Vandy?/DuBeau? purple rubber-stamp) cachet on cover | KH8-48 launch |
| United States | 1977-03-13 | Vandenberg AFB, CA | (Vandy?/DuBeau? purple rubber-stamp) cachet on (airmail) cover | KH8-48 launch |
| 1977-06-27: KH9-13 | ||||
| United States | 1977-06-27 | Vandenberg AFB, CA | (Space Voyage sticker) cachet on cover | KH9-13 launch ("Big Bird-14"2; not "SAMOS-111" as in text) |
| United States | 1977-06-27 | Vandenberg AFB, CA | (DuBeau?/Vandy? blue rubber-stamp) cachet on cover | KH9-13 launch ("classified mission") |
| 1977-09-23: KH8-49 | ||||
| United States | 1977-09-23 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-49 launch ("Big Bird"2; not "SAMOS-112" as in text) |
| United States | 1977-09-23 | Vandenberg AFB, CA | (Vandy?/DuBeau? red rubber-stamp) cachet on cover | KH8-49 launch ("unscheduled satellite") |
| United States | 1977-09-23 | Vandenberg AFB, CA | (Vandy?/DuBeau? red rubber-stamp) cachet on (airmail) cover | KH8-49 launch ("unscheduled satellite") |
| United States | 1977-09-23 | Lompoc CA, Vandenberg AFB | (Vandy?/DuBeau? red rubber-stamp) cachet on cover | KH8-49 launch ("unscheduled satellite") |
| 1978-03-16: KH9-14 (and P11-4432) | ||||
| United States | 1978-03-16 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-14 launch ("Big Bird-15"2; not "SAMOS" as in text) |
| 1978-06-14: KH11-2 | ||||
| United States | 1978-06-14 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH11-2 launch ("Big Bird-16"2) |
| United States | 1978-06-14 | Lompoc CA, Vandenberg AFB | (DuBeau?/Vandy? black rubber-stamp) cachet on cover | KH11-2 launch ("classified satellite") |
| United States | 1978-06-14 | Vandenberg AFB, CA | (DuBeau?/Vandy? black rubber-stamp) cachet on cover | KH11-2 launch ("classified satellite") |
| United States | 1978-06-14 | Vandenberg AFB, CA | (DuBeau?/Vandy? black rubber-stamp) cachet on (airmail) cover | KH11-2 launch ("classified satellite") |
| 1979-03-16: KH9-15 (and P11-4431) | ||||
| United States | 1979-03-16 | Vandenberg AFB, CA | (Vandy? blue rubber-stamp) cachet on (airmail) cover | KH9-14 launch ("secret satellite") |
| 1979-05-29: KH8-50 | ||||
| United States | 1979-05-28 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH8-50 launch (not "KH-11", as in text, "Big Bird"2, "Program 467") |
| United States | 1979-05-29 | Vandenberg AFB, CA | (DuBeau? purple rubber-stamp) cachet on (airmail) cover | KH8-50 launch ("classified satellite") |
| 1980-02-07: KH11-3 | ||||
| United States | 1980-02-07 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH11-3 launch ("reconnaissance satellite") |
| United States | 1980-02-07 | Lompoc CA, Vandenberg AFB | (DuBeau? black rubber-stamp) cachet on cover | KH11-3 launch ("classified satellite") |
| United States | 1980-02-07 | Vandenberg AFB, CA | (DuBeau? black rubber-stamp) cachet on (airmail) cover | KH11-3 launch ("classified satellite") |
| 1980-06-18: KH9-16 (and P801-6) | ||||
| United States | 1980-06-18 | Vandenberg AFB, CA | (Boudwin blue and black rubber-stamp) cachet on cover | KH9-16 launch ("Big Bird"2) |
| United States | 1980-06-18 | Vandenberg AFB, CA | (Boudwin cyan and black rubber-stamp) cachet on cover | KH9-16 launch ("Big Bird"2) |
| United States | 1980-06-18 | Vandenberg AFB, CA | (Space Voyage) cachet on cover | KH9-16 launch ("Big Bird"2; "Program 467") |
| 1985-08-28: KH11-7 [failed] | ||||
| United States | 1985-08-28 | Lompoc CA, Vandenberg AFB | (Boudwin green and black rubber-stamp) cachet on (airmail) cover | KH11-7 launch [failed] |
| 1986-04-18: KH9-20 (and Pearl Ruby) [failed] | ||||
| United States | 1986-04-18 | Lompoc CA, Vandenberg AFB | (Boudwin purple and green rubber-stamp) cachet on (airmail) cover | KH9-20 launch [failed] ("secret...satellite") |
| 1987-10-26: KH11-8 | ||||
| United States | 1987-10-26 | Lompoc CA, Vandenberg AFB | (Boudwin green and blue printed and black typed, based on a Swanson rubber-stamp design) cachet on (airmail) cover | KH11-8 launch ('C.I.A.") |
| 2001-10-05: KH11-13 / NROL-14 | ||||
| United States | 2001-10-05 | Vandenberg AFB, Lompoc CA | (SCP sticker) cachet on cover | KH11-13 (NROL-14) launch ("national security satellite") |
| 2005-10-19: KH11-14 / NROL-20 | ||||
| United States | 2005-10-19 | Vandenberg AFB, CA | (SCP mission-patch sticker) cachet on cover | KH11-14 (NROL-20) launch |
| 2011-01-20: KH11-15 / NROL-49 | ||||
| United States | 2011-01-20 | Vandenberg AFB, CA | (Lollini) cachet on cover | KH11-15 (NROL-49) launch |
| United States | 2011-01-20 | Vandenberg AFB, CA | (Sarmiento) cachet on cover | KH11-15 (NROL-49) launch ("classified payload") |
| 2013-08-28: KH11-16 / NROL-65 | ||||
| United States | 2013-08-28 | Vandenberg AFB, CA | (Sarmiento) cachet on cover | KH11-16 (NROL-65) launch |
| KH11-17 / NROL-71 (pre-launch events) | ||||
| Finland | 2018-12-18 | Kerava | (SVP) cachet on cover | KH11-17 (NROL-71) pre-launch: "scrubbed" |
| 2019-01-19: KH11-17 / NROL-71 | ||||
| United States | 2019-01-19 | Vandenberg AFB, CA | (Red Eagle) cachet on cover | KH11-17 (NROL-71) launch ("classified satellite") |
| 2021-04-26: KH11-18 / NROL-82 | ||||
| United States | 2021-04-26 | Vandenberg AFB, CA | (JM) cachet on cover | KH11-18 (NROL-82) launch ("highly secretive satellite mission") |
| United States | 2021-04-26 | Vandenberg AFB, CA | (Galactic Space Covers) cachet on cover, also insert | KH11-18 (NROL-82) launch ("classified mission") |
| United States | 2021-04-26 | Vandenberg AFB, CA | (Ranski) cachet on cover | KH11-18 (NROL-82) launch |
| 2022-09-24: KH11-19 / NROL-91 | ||||
| United States | 2022-09-24 | Vandenberg SFB, CA | (JM) cachet on cover | KH11-19 (NROL-91) launch |
| United States | 2022-09-24 | Vandenberg SFB, CA | (JM) cachet (different) on cover | KH11-19 (NROL-91) launch |
| Summary: The Keyhole and Discoverer lists include about 215 of the 267 de-classified KH launches | ||||
| KH10 / Dorian / MOL (Manned Orbiting Laboratory) series [canceled] | ||||
| KH12 / Ikon series [not yet declassified] | ||||
| Keyhole (on other than Keyhole launch covers) | ||||
| United States | 1989-08-08 | Houston TX | (Colorano silk) cachet on STS-28R launch and SDS-2-1 deployment cover | "KH-12" |
| United States | 2017-10-15 | Cape Canaveral FL | (Mission 57) cachet on back of NROL-52 launch cover, also front | "Keyhole optic and Lacrosse/Onyx radar reconnaissance satellite network" |
1This Swanson blue rubber-stamp cachet has radial antennas like those on ESRO-2A.
2"Big Bird" was an unofficial or common name for the KH9/Hexagon series.
4KH4A-35 and KH4A-36 designations are based on Astronautix.com: Encyclopedia Astronautica and Eye In The Sky by Day, Logsdon, and Latell.
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