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SECOR
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| SECOR-1 | SECOR-(1) |
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SECOR
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| SECOR-1 | SECOR-(1) |
This page contains philatelic information on the SECOR (SEquential COllation of Range) 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.
The SECOR series is also known as the EGRS (Electronic and Geodetic Ranging Satellite) series.
| Launch information (found elsewhere) |
Launch covers (including anniversary-of-launch covers, and launch-related event covers) (farther below) |
Other postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.) (immediately below) |
|---|---|---|
| SECOR | SECOR | SECOR |
Below is a list of SECOR-series satellite postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| SEquential COllation of Range (SECOR) | ||||
| No (non-launch cover) postal items found | ||||
Below is a list of SECOR-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 |
|---|---|---|---|---|
| SEquential COllation of Range (SECOR) | ||||
| 1962-01-24: SECOR-(1) (and Injun-2 and SolRad-4A and SurCal-1 and LOFTI-2) [failed] | ||||
| United States | 1962-01-24 | Patrick AFB, FL | (SpaceCraft/Swanson) cachet on cover, also insert | SECOR-(1) launch [failed] |
| United States | 1962-01-24 | Patrick AFB, FL | (Black typed/hand-printed/small picture/magenta rubber-stamp) cachet on cover | SECOR-(1) launch [failed] |
| 1965-03-11: SECOR-2 (and TRANSIT-O3) | ||||
| United States | 1965-03-11 | Vandenberg AFB, CA | (Goldcraft) cachet on cover | SECOR-2 launch ("secret ... satellite") |
| United States | 1965-03-11 | Vandenberg AFB, CA | (Sarzin) cachet on cover | SECOR-2 launch |
| United States | 1965-03-11 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | SECOR-2 launch ("classified payload") |
| 1965-03-09: SECOR-3 (and OSCAR-3 and SolRad-7B and Dodecapole-1 and Poppy-6 and SurCal-4) | ||||
| No launch cover images available yet | ||||
| 1965-04-03: SECOR-4 (and Snapshot) | ||||
| United States | 1965-04-03 | Vandenberg AFB, CA | (SpaceCraft/Swanson) cachet on cover, also insert | SECOR-4 launch |
| United States | 1965-04-03 | Vandenberg AFB, CA | (Sarzin) cachet on cover | SECOR-4 launch |
| 1965-08-10: SECOR-5 (and SEV) | ||||
| United States | 1965-08-10 | Wallops Island VA | (Sarzin) cachet on cover | SECOR-5 launch |
| United States | 1965-08-10 | Wallops Island VA | (Swanson magenta and cyan rubber-stamp and black typed) cachet on cover | SECOR-5 launch |
| 1966-08-19: SECOR-7 (and RTS-1-2 and US-ERS-15) | ||||
| United States | 1966-08-17 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | SECOR-7 launch ("secret satellite") |
| 1966-10-05: SECOR-8 (and RTS-1-3) | ||||
| United States | 1966-10-05 | Vandenberg AFB, CA | (Swanson/DuBeau? purple rubber-stamp) cachet on cover | SECOR-8 launch ("secret satellite") |
| 1967-06-29: SECOR-9 (and Aurora) | ||||
| United States | 1967-06-29 | Vandenberg AFB, CA | (Swanson/DuBeau? red rubber-stamp) cachet on cover | SECOR-9 launch ("secret satellite") |
| 1968-05-18: SECOR-10 (and Nimbus-B) [failed] | ||||
| United States | 1968-05-18 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | SECOR-10 launch [failed] |
| United States | 1968-05-18 | Vandenberg AFB, CA | (Swanson/DuBeau? black rubber-stamp) cachet on cover | SECOR-10 launch [failed] |
| 1968-08-16: SECOR-11/12 (and LCS-3 and OV5-8 and Orbiscal-1 and Mylar Balloon and Rigidsphere and Gridsphere-1/2 and LIDOS and 2 others) [failed] | ||||
| United States | 1968-08-16 | Vandenberg AFB, CA | (Centennial black rocket, type-1) cachet on cover | SECOR-11/12 launch [failed] |
| United States | 1968-08-16 | Vandenberg AFB, CA | (Swanson/Vandy? blue rubber-stamp) cachet on cover | SECOR-11/12 launch [failed] |
| United States | 1968-08-16 | Vandenberg AFB, CA | (Sarzin) cachet on cover | SECOR-11/12 launch [failed] (but LIDOS depicted) |
| 1969-04-13: SECOR-13 (and Nimbus-3) | ||||
| United States | 1969-04-13 | Vandenberg AFB, CA | (SpaceCraft/Swanson) cachet on cover, also insert | SECOR-13 launch |
| United States | 1969-04-13 | Lompoc CA, Vandenberg AFB | (SpaceCraft/Swanson) cachet on cover, also insert | SECOR-13 launch |
| United States | 1969-04-13 | Vandenberg AFB, CA | (Sarzin) cachet on cover | SECOR-13 launch |
| United States | 1969-04-13 | Vandenberg AFB, CA | (Centennial brown rocket, type-2 and black text) cachet on cover | SECOR-13 launch |
| United States | 1969-04-13 | Vandenberg AFB, CA | (Swanson/DuBeau? blue rubber-stamp) cachet on cover | SECOR-13 launch |
| United States | 1969-04-13 1969-04-13 | Vandenberg AFB, CA Lompoc CA, Vandenberg AFB | (Swanson/DuBeau? blue rubber-stamp) cachet (and signature) on cover | SECOR-13 launch |
| United States | 1969-04-14 | Vandenberg AFB, CA | (Orbit Covers) cachet on cover | SECOR-13 launch; also Argos |
| United States | 1969-04-14 | Vandenberg AFB, CA | (NORAD tracking station red and blue rubber-stamp) cachet on cover | SECOR-13 launch |
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