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Orbiting Geophysical Observatory
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Orbiting Geophysical Observatory
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Below is a checklist of Orbiting Geophysical Observatory (OGO) series satellite postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.). 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.
Farther below is a list of OGO-series launch covers, anniversary-of-launch covers, and launch-related event covers.
For OGO launch information see the OGO-series table on the scientific/research satellites page.
| Country | Catalog Number* | Type of Item** | Year of Issue | Notes on Content |
|---|---|---|---|---|
| OGO | ||||
| Burundi | 129 (Mi170a) | 1965 | OGO-1/61 | |
| Czechoslovakia | 1454 (Mi1688) | 1967 | OGO-1/61 | |
| Ghana | 164 (Mi170A) | 1964 | OGO-1/61 | |
| Ghana | 165 (Mi171A) | |||
| Ghana | 166 (Mi172A) | |||
| Ghana | 166a (BL9) | On stamp and in (upper-right) margin of imperforate MS4 (4x 166) | ||
| Ghana | 186 (Mi185A) | 1964 | OGO-1/61 | |
| Ghana | 186a | MS12 (12x 186) | ||
| Ghana | 187 (Mi186A) | |||
| Ghana | 187a | MS12 (12x 187) | ||
| Ghana | 188 (Mi198A) | |||
| Ghana | 188a | MS12 (12x 188) | ||
| Kathiri State of Seiyun (South Arabia) | Mi86A Mi86B | Changed colors on imperforate | 1966 | OGO-1/61 |
| Kathiri State of Seiyun (South Arabia) | Mi89A Mi89B | Changed colors on imperforate | 1966 | OGO-1/61 |
| Kathiri State of Seiyun (South Arabia) | MiA90 MiB90 | Changed colors on imperforate | 1967 | OGO-1/61 |
| Kathiri State of Seiyun (South Arabia) | BLA1A BLB1A | SS1, changed colors on imperforate | 1967 | OGO-1/61 |
| Nigeria | 143a (Mi134a) | In (upper-right) margin of MS12 (12x 143) | 1963 | OGO-1/61 |
| Nigeria | 144a (Mi135a) | In (upper-right) margin of MS12 (12x 144) | ||
| Panama | C334a (BL36) iC334a (BL37) | In (lower) margin of MS2 (C333-C334), changed colors on imperforate | 1965 | OGO-1/61 |
| Satellite Beach FL (U.S.) | Local | set-D-5 (green) | 1964 | OGO-1/61 |
| Satellite Beach FL (U.S.) | Local | set-D-5 (green) overprinted in gold | 1964 | OGO-1/61 |
| Sierra Leone | 1069i (Mi1220) | One of MS9 (1069 (a-i)) | 1989 | OGO-4 |
| Togo | 500 (Mi446) | 1964 | OGO-1/61 | |
| Togo | 504 (Mi450) | |||
| Togo | 505a (BL17) | Imperforate MS4 (502-505) | ||
| United States | None | Cachet on OAO-2 launch cover | 1968 | OGO-1/61 |
*Scott catalog number, unless prefixed with Mi or BL for Michel; "i" prefix denotes imperforate version.
**SS# = souvenir sheet, MS# = miniature sheet, where # = number of stamps in sheet, and the numbers in parentheses are the catalog numbers of the stamps in the sheet.
1OGO-1 thru OGO-6 are all basically identical.
Below is a list of OGO-series launch covers, anniversary-of-launch covers, and launch-related event covers.
| Country | Cancel Date | Cancel Location | Type of Item | Notes on Content |
|---|---|---|---|---|
| OGO | ||||
| United States | 1964-09-05 | Patrick AFB, FL | (SpaceCraft/Swanson) cachet on cover | OGO-1 launch |
| United States | 1964-09-05 | Cape Canaveral FL | (Sarzin) cachet on cover | OGO-1 launch |
| United States | 1965-10-14 | Vandenberg AFB, CA | (SpaceCraft/Swanson) cachet on cover, also insert | OGO-2 launch |
| United States | 1965-10-14 / 1967-07-28 | Vandenberg AFB, CA / Lompoc CA, Vandenberg AFB | (Sarzin?) cachet on cover | OGO-2 and OGO-4 launches |
| United States | 1966-06-07 | Cape Canaveral FL | (Sarzin) cachet on cover | OGO-3 launch |
| United States | 1966-06-07 | Patrick AFB, FL | (SpaceCraft/Swanson) cachet on cover | OGO-3 launch |
| United States | 1966-06-07 | Cape Canaveral FL | (?) cachet on cover | OGO-3 launch |
| United States | 1967-07-28 | Vandenberg AFB, CA | (SpaceCraft/Swanson) cachet on cover | OGO-4 (mislabeled POGO-4) launch |
| United States | 1965-10-14 / 1967-07-28 | Vandenberg AFB, CA / Lompoc CA, Vandenberg AFB | (Sarzin?) cachet on cover | OGO-2 and OGO-4 launches |
| United States | 1968-03-04 | Cape Canaveral FL | (Orbit) cachet on cover | OGO-5 launch |
| United States | 1968-03-04 | Kennedy Space Center FL | (Dubeau rubber-stamp) cachet on cover | OGO-5 launch |
| United States | 1968-03-04 | Cape Canaveral FL | (SpaceCraft/Swanson) cachet on cover | OGO-5 launch |
| United States | 1968-03-04 | Cape Canaveral FL | (Centennial?) cachet on cover | OGO-5 launch |
| United States | 1968-03-04 | Cape Canaveral FL | (Sarzin) cachet on cover | OGO-5 launch |
| United States | 1969-06-05 | Lompoc CA, Vandenberg AFB | (SpaceCraft/Swanson) cachet on cover | OGO-6 launch |
| United States | 1969-06-05 | Vandenberg AFB, CA | (Orbit) cachet on cover | OGO-6 launch |
| United States | 1969-06-05 | Vandenberg AFB, CA | (Centennial?) cachet on cover | OGO-6 launch |
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