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High-Energy Astronomical Observatory
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| HEAO-1 | HEAO-2 | HEAO-3 |
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High-Energy Astronomical Observatory
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| HEAO-1 | HEAO-2 | HEAO-3 |
This page contains philatelic information on the High-Energy Astronomical Observatory (HEAO) 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.
HEAO-2 was named the Einstein Observatory in honor of Albert Einstein (1879–1955).
| 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) |
|---|---|---|
| HEAO | HEAO | HEAO |
| HEAO (on other than HEAO launch covers) |
Below is a list of HEAO-series postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| High-Energy Astronomical Observatory (HEAO) | ||||
| Chad | 718 (Mi1636A) i718 (Mi1636B) | From MS4 (718b (4x 718)) From imperforate MS4 (i718b (4x i718)) | 1997 | "HEAO-2" / "Einstein" |
| Chad | 718a (BL none) i718a | On stamp of SS1 (718) On stamp of imperforate SS1 (i718) | ||
| Gambia | 804 (Mi824) | 1988 | "HEAO-2" / "Einstein orbital satellite" | |
| Guinea Republic | Mi4288A Mi4288B | One of MS3 (Mi4287A-4289A) One of imperforate MS3 (Mi4287B-4289B) | 2006 | "HEAO-2" / Einstein |
| Guinea Republic | Mi4288B ds | Imperforate deluxe sheet (Mi4288B) | ||
| Guinea Republic | BL992A BL992B | On stamp of SS1 On stamp of imperforate SS1 | ||
| Guinea Republic | Mi8443 | One of MS6 (Mi8439-8444) | 2011 | "HEAO-2" / Einstein |
| Guinea Republic | Mi8439-8444_ms6 fdc | MS6 and (multi-color printed) cachet on FDC | ||
| Guinea Republic | Mi9259 | 2012 | "HEAO-2" / "Einstein observatoire" | |
| Guinea Republic | BL2103 | On stamp of SS1 (Mi9259) | ||
| Madagascar | Unknown ms (Mi none) Unknown ims | In (upper-left) margin of MS4 (a-d) [known illegal issue] In (upper-left) margin of imperforate MS4 (a-d) | 1999 | HEAO-1 (not "HEOS-2", as in text) |
| Madagascar | Unknown fdc | MS4 on FDC | ||
| Spain | None | (Orange and blue and black printed) cachet on cover | 1984 | "HEAO" (in text only) |
Below is a list of HEAO-series launch covers (including anniversary-of-launch covers, and launch-related event covers).
| Country | Cancel Date | Cancel Location | Type of Item | Notes on Content |
|---|---|---|---|---|
| High-Energy Astronomical Observatory (HEAO) | ||||
| 1977-08-12: HEAO-1 | ||||
| United States | 1977-08-12 | Cape Canaveral FL | (Orbit Covers) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Greenbelt MD | (GSFC Stamp Club) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Greenbelt MD | (GSFC Stamp Club) cachet (and signatures) on cover | HEAO-1 launch |
| United States | 1977-08-12 | Greenbelt MD | (GSFC STDN blue rubber-stamp) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Kennedy Space Center FL | (Space Voyage) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Cape Canaveral FL | (Space Voyage) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Kennedy Space Center FL | (Blue rubber-stamp) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Cape Canaveral FL | (TRW Defense and Space Systems Group) cachet on cover, also insert | HEAO-1 launch |
| United States | 1977-08-12 | Cape Canaveral FL | (Centennial Covers, with logo)1 cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Marshall Space Flight Center AL | (Centennial, same but no logo) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Kennedy Space Center FL | (SCPS ser.77/10) cachet (and signature) on cover, also back | HEAO-1 launch |
| United States | 1977-08-12 | Cape Canaveral FL | (Whitney blue and purple) cachet on cover | HEAO-1 launch |
| United States Canada | 1977-08-12 1977-08-18 | Cape Canaveral FL Montreal | (blank/no) cachet on cover | HEAO-1 launch ? |
| HEAO-1 (events) | ||||
| United States | 1979-03-15 | MSFC, AL | (Space Voyage) cachet on cover | HEAO-1 re-entry |
| 1978-11-13: HEAO-2 / Einstein Observatory | ||||
| United States | 1978-11-13 | Cape Canaveral FL | (Orbit Covers) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Kennedy Space Center FL | (Zaso silk/IASP no.7) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (TRW Defense and Space Systems Group) cachet on cover, also insert | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Space Voyage) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Kennedy Space Center FL | (Space Voyage) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | GSFC, MD | (GSFC Stamp Club) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | GSFC, MD | (GSFC Stamp Club) cachet (and signature) on cover | HEAO-2 launch |
| United States | 1978-11-13 | GSFC, MD | (GSFC dark blue rubber-stamp) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Whitney purple and black) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Kennedy Space Center FL | (Centennial) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Centennial-like) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Red and blue rubber-stamp) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Orlando FL, Kennedy Space Center Branch | (Red and blue rubber-stamp) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Kennedy Space Center Branch | (Red and blue rubber-stamp) cachet on (airmail) cover | HEAO-2 launch |
| HEAO-2 (anniversaries) | ||||
| Romania | 2003-11-13 | Iasi | (Pictorial) cancel | 25th anniv. HEAO-2 launch |
| 1979-09-20: HEAO-3 | ||||
| United States | 1979-09-20 | MSFC, AL | (Blue-green rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | MSFC, AL | (Black rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | MSFC, AL | (Magenta rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | MSFC, AL (hand cancel) | (Blue rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | MSFC, AL (machine cancel) | (Blue rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | MSFC, AL (machine cancel) | (Blue rubber-stamp) cachet on (airmail) cover | HEAO-3 launch |
| United States | 1979-09-20 | Greenbelt MD | (GSFC Stamp Club) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Greenbelt MD | (GSFC Stamp Club) cachet (and signature) on cover | HEAO-3 launch |
| United States | 1979-09-20 | Kennedy Space Center FL | (Space Voyage) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Kennedy Space Center FL (hand cancel) | (Red and purple and blue rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Kennedy Space Center FL (machine cancel) | (Red and purple and blue rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Cape Canaveral FL | (Red and purple and blue rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Kennedy Space Center FL | (SCPS) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Kennedy Space Center FL | (SCPS) cachet (and signature) on cover | HEAO-3 launch |
| United States | 1979-09-20 | Greenbelt MD | (GSFC tracking team, modified Swanson dark-blue rubber-stamp) cachet on cover | HEAO-3 launch |
| United States | 1979-09-20 | Kennedy Space Center FL | (Centennial) cachet on cover | HEAO-3 launch |
| HEAO-3 (anniversaries) | ||||
| Romania | 2004-09-20 | Iasi | (Pictorial) cancel | 25th anniv. HEAO-3 launch |
| HEAO (on other than HEAO launch covers) | ||||
| United States | 1974-12-17 | Palestine TX | (Red rubber-stamp) cachet on stratospheric balloon launch cover | HEAO-A (not "HEAD-A", as in text) |
1Launch cover with a "Centennial Covers" text logo (most Centennial items have no such logo).
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