OTS-1

Orbital Test Satellite
(OTS) series


This page contains philatelic information on the Orbital Test Satellite (OTS) series. 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.

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)
OTS (ESA) OTS (ESA) OTS (ESA)


Below is a list of Orbital Test Satellite (OTS) series postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).

CountryCatalog NumberType of ItemYear of IssueNotes on Content
Orbital Test Satellite (OTS) (ESA)
Antigua and Barbuda702 (BL70)In (lower-right) margin of SS11983
Barbuda577 (BL74)In (lower-right) margin of SS1, Antigua and Barbuda 702 overprinted1983
Bolivia585a (BL71)In (lower) margin of imperforate SS1 (585)1976"OTS"
Central African Republic423 (Mi690)
i423

Imperforate
1980OTS (with 3-section, instead of 2-section, solar panels)
Central African Republic423a (BL93)
i423a
On stamp of SS1 (423)
On stamp of imperforate SS1 (i423)
Chad365 (Mi847)
i365

Imperforate
1979
Egypt1037 (Mi721)1977(possible) OTS
Equatorial GuineaBL277 o/pImperforate SS1 (BL277) overprinted1977"OTS-2"
Equatorial GuineaBL277 o/p muestra1Imperforate SS1 (BL277) overprinted, overprinted "muestra"
Equatorial GuineaBL277 o/p muestra2Imperforate SS1 (BL277) overprint, double-overprint "muestra"
Equatorial GuineaBL277 o/p fdcImperforate SS1 (BL277) overprint FDC
MexicoUnknown (Mi?)2016(possible) OTS
MexicoUnknown fdcStamp and cancel and cachet on FDC
Oman StateUnlisted (Mi unlisted)
Unlisted imp
One of pair (2x 2b) overprinted in black
One of imperforate pair (2x 2b) overprinted in black
1979"OTS"
Oman StateUnlisted (Mi unlisted)
Unlisted imp
One of pair (2x 2b) overprinted in red
One of imperforate pair (2x 2b) overprinted in red
Oman StateUnlisted (Mi unlisted)
Unlisted imp
One of pair (2x 4b) overprinted in black
One of imperforate pair (2x 4b) overprinted in black
Oman StateUnlisted (Mi unlisted)
Unlisted imp
One of pair (2x 4b) overprinted in red
One of imperforate pair (2x 4b) overprinted in red
Oman StateUnlisted (Mi unlisted)
Unlisted imp
One of pair (2x 6b) overprinted in black
One of imperforate pair (2x 6b) overprinted in black
Oman StateUnlisted (Mi unlisted)
Unlisted imp
One of pair (2x 6b) overprinted in red
One of imperforate pair (2x 6b) overprinted in red
Oman StateUnlisted fdcThree pairs overprinted in black on FDC
Oman StateUnlisted fdcThree pairs overprinted in red on FDC
Oman StateUnlisted (Mi unlisted)Overprinted in black
Oman StateUnlisted ss (BL unlisted)SS1, overprinted in black
Rwanda815 (Mi879)
i815

Imperforate
1977"OTS"
United StatesNoneCancel on cover1994(probable) OTS
UruguayC422 (BL29)In (left) margin of MS3 (C422 (a-c))1976"OTS"
UruguayC423 (BL30)In (right) margin of MS3 (C423 (a-c))


Below is a list of Orbital Test Satellite (OTS) series launch covers (including anniversary-of-launch covers, and launch-related event covers).

CountryCancel DateCancel LocationType of ItemNotes on Content
Orbital Test Satellite (OTS) (ESA)
1977-09-13: OTS-1 [failed]
United States1977-09-13Cape Canaveral FL(OTS mission patch) cachet on cover, also associated OTS folderOTS-1 launch [failed]
United States1977-09-13Orlando FL, Kennedy Space Center Branch(Lollini silk) cachet on coverOTS-1 launch [failed]
United States1977-09-13Cape Canaveral FL(Space Voyage) cachet on coverOTS-1 launch [failed]
United States1977-09-13Kennedy Space Center FL(Space Voyage) cachet on coverOTS-1 launch [failed]
United States1977-09-13Kennedy Space Center FL(Blue and red rubber-stamp) cachet on (airmail) coverOTS-1 launch [failed]
United States1977-09-13Cape Canaveral FL(Whitney purple and black) cachet on (airmail) coverOTS-1 launch [failed]
United States1977-09-13
1978-05-11
Cape Canaveral FL
Cape Canaveral FL
(Lollini) cachet on coverOTS-1 launch [failed]
OTS-2 launch
1978-05-11: OTS-2
United States1978-05-11Cape Canaveral FL(Whitney purple) cachet on (airmail) coverOTS-2 launch
United States1978-05-11Cape Canaveral FL(Orbit Covers) cachet on coverOTS-2 launch (mis-labeled "OTS-1", in text)
United States1978-05-11Cape Canaveral FL(OTS mission patch) cachet on coverOTS-2 launch
United States1978-05-11Cape Canaveral FL(Space Voyage) cachet on coverOTS-2 launch
United States1978-05-11Kennedy Space Center FL(Space Voyage) cachet on coverOTS-2 launch
United States1978-05-11Kennedy Space Center FL(ESA) cachet on coverOTS-2 launch
United States1978-05-11GSFC, MD(GSFC Stamp Club) cachet on coverOTS-2 launch
United States1978-05-11GSFC, MD(NASCOM blue rubber-stamp) cachet on coverOTS-2 launch
United States1978-05-11
1977-09-13
Cape Canaveral FL
Cape Canaveral FL
(Lollini) cachet on coverOTS-2 launch
OTS-1 launch [failed]
France1978-05-12Paris(Lollini) cachet on coverOTS-2 launch


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Updated: 2017-12-20