ERS

(USAF)
ERS-series
satellites

ERS-17
ERSERS-17

This page contains philatelic information on (USAF) ERS (Environmental Remote Sensing) 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.

Alternate names for the ERS series are Tetrahedronal Research Satellite (TRS) and Octagonal Research Satellite (ORS).

The USAF Environmental Remote Sensing (ERS) series of scientific/research/technology satellites launched in the 1960s should not be confused with the ESA European Remote Sensing (ERS) series from the 1990s,

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)
ERS
(USAF)
ERS
(USAF)
ERS
(USAF)


Below is a list of (USAF) ERS-series satellite postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).

CountryCatalog NumberType of ItemYear of IssueNotes on Content
Environmental Remote Sensing (ERS) (USAF)
Satellite Beach FL (USA)LocalSet-C9 (blue)1964"TRS"
Satellite Beach FL (USA)Local fdc1Set-C9 (blue) (in cachet position) on local post FDC (hand cancel)
Satellite Beach FL (USA)Local fdc2Set-C9 (blue) (in cachet position) on local post FDC (machine cancel)
Satellite Beach FL (USA)Local o/pSet-C4 (blue) overprinted in gold1965"TRS"
Vanuatu1123b (Mi1600)One of MS6 (1123 (a-f)) (BL81, Mi1599-1604)2021TRS


Below is a list of (USAF) ERS-series satellite launch covers (including anniversary-of-launch covers, and launch-related event covers).

CountryCancel DateCancel LocationType of ItemNotes on Content
Environmental Remote Sensing (ERS) (USAF)
1962-11-11: US-ERS-1 (and SAMOS-11)
United States1962-11-11Lompoc CA(Vandy?/DuBeau? red rubber-stamp) cachet on coverUS-ERS-1 launch
United States1962-11-11Lompoc CA(Vandy?/DuBeau? red rubber-stamp) cachet on (airmail) coverUS-ERS-1 launch
United States1962-11-11Lompoc CA(HM red typed and hand-printed) cachet on cover, also (Vandy?/DuBeau? red rubber-stamp) cachet on backUS-ERS-1 launch ("TRS-1" in text); ("secret satellite" and "sky spy")
1962-09-17: US-ERS-2 (and KH4-12)
United States1962-09-17Vandenberg AFB, CA(Goldcraft Cachets) cachet on coverUS-ERS-2 launch
United States1962-09-17Vandenberg AFB, CA(SpaceCraft Type-C general-purpose) cachet on coverUS-ERS-2 launch
United States1962-09-17Vandenberg AFB, CA(Holden black and magenta and red rubber-stamp and black typed) cachet on coverUS-ERS-2 launch
1962-12-17: US-ERS-3/4 (and MIDAS-6) [failed]
United States1962-12-18Vandenberg AFB, CA(Sarzin) cachet on coverUS-ERS-3/4 launch [failed] ("secret space ship")
United States1962-12-18Lompoc CA(Holden cyan and red rubber-stamp and black typed) cachet on coverUS-ERS-3/4 launch [failed] ("secret launchings")
United States1962-12-18Lompoc CA(Holden black and cyan and red rubber-stamp) cachet on (airmail) coverUS-ERS-3/4 launch [failed]
United States1962-12-18Lompoc CA(Holden blue and magenta rubber-stamp) cachet on (airmail) coverUS-ERS-3/4 launch [failed]
1963-05-09: US-ERS-5/6 (and MIDAS-7 and DASH-1 and WestFord-2)
United States1963-05-09Vandenberg AFB, CA(Rank velvet) cachet on coverUS-ERS-5/6 launch
United States1963-05-09
1964-01-29
Vandenberg AFB, CA
Cape Canaveral FL
(Rank velvet) cachet on coverUS-ERS-5/6 launch
Saturn-SA-5 launch
1963-07-18: US-ERS-9/10 (and MIDAS-9 and DASH-2)
United States1963-07-18Vandenberg AFB, CA(Orbit Covers, no logo) cachet on coverUS-ERS-9/10 launch ("spy in the sky")
United States1963-07-18Vandenberg AFB, CA(Sarzin) cachet on coverUS-ERS-9/10 launch (along with two other satellites); the "two experimental satellites" referred to in the cachet are probably DASH-2 and ERS-9 ("secret experiments in space")
United States1963-07-18Vandenberg AFB, CA(Rank silkscreened) cachet on coverUS-ERS-9/10 launch
1963-10-17: US-ERS-12 (and Vela-1/2)
United States1963-10-17Patrick AFB, FL(SpaceCraft/Swanson) cachet on cover, also insertUS-ERS-12 launch
United States1963-10-17Cape Canaveral FL(SpaceCraft/Swanson) cachet on cover, also insertUS-ERS-12 launch
United States1963-10-17Cape Canaveral FL(Sarzin) cachet on coverUS-ERS-12 launch ("nuclear spy twin satellites")
United States1963-10-17Cape Canaveral FL(Swanson purple rubber-stamp) cachet on coverUS-ERS-12 launch
United States1963-10-17Cape Canaveral FL (hand cancel)(Centennial) cachet on coverUS-ERS-12 launch
United States1963-10-17Cape Canaveral FL (machine cancel)(Centennial) cachet (different) on coverUS-ERS-12 launch
United States1963-10-17Cape Canaveral FL(Goldcraft) cachet (design based on a cinderella from the 11th National Postage Stamp Show in 1959) on coverUS-ERS-12 launch ("silent sentry")
United States1963-10-17Cape Canaveral FL(Jim Fitzpatrick purple rubber-stamp) cachet on coverUS-ERS-12 launch
United States1963-10-17
1964-01-29
Cape Canaveral FL
Cape Canaveral FL
(Rank velvet) cachet on coverUS-ERS-12 launch
Saturn-SA-5 launch
United States1963-10-17
1965-07-20
Cape Canaveral FL
Satellite Beach FL
(Rank velvet) cachet on coverUS-ERS-12 launch
Vela-5/6 launch
1964-07-17: US-ERS-13 (and Vela-3/4)
United States1964-07-17Cape Canaveral FL(Sarzin) cachet on coverUS-ERS-13 launch ("watchdog satellites")
United States1964-07-17Cape Canaveral FL (machine cancel)(Centennial) cachet on coverUS-ERS-13 launch
United States1964-07-17Cape Canaveral FL (hand cancel)(Centennial) cachet on coverUS-ERS-13 launch
United States1964-07-17Cape Canaveral FL(SpaceCraft/Swanson) cachet on cover, also insertUS-ERS-13 launch
United States1964-07-17Patrick AFB, FL(SpaceCraft/Swanson) cachet on cover, also insertUS-ERS-13 launch
United States1964-07-17Cape Canaveral FL(C. Swanson purple rubber-stamp) cachet on coverUS-ERS-13 launch
United States1964-07-17Cape Canaveral FL (machine cancel)(Sokalsky orange) cachet on coverUS-ERS-13 launch
United States1964-07-17Cape Canaveral FL (hand cancel)(Sokalsky orange) cachet on coverUS-ERS-13 launch
1966-08-19: US-ERS-15 (and RTS-1-2 and SECOR-7)
United States1966-08-17Vandenberg AFB, CA(Swanson/DuBeau? purple rubber-stamp) cachet on coverUS-ERS-15 launch ("secret satellite")
1965-07-20: US-ERS-17 (and Vela-5/6)
United States1965-07-20Patrick AFB, FL(SpaceCraft/Swanson) cachet on cover, also insertUS-ERS-17 launch
United States1965-07-20Cape Canaveral FL(SpaceCraft/Swanson) cachet on cover, also insertUS-ERS-17 launch
United States1965-07-20Cape Canaveral FL(Sarzin) cachet on coverUS-ERS-17 launch ("surveillance satellites")
United States1965-07-20Cape Canaveral FL(Sokalsky red/Celestial red) cachet (but spelled "Celistial") on coverUS-ERS-17 launch (but Telstar depicted)
United States1965-07-20Cape Canaveral FL (machine cancel)(Centennial) cachet on coverUS-ERS-17 launch
United States1965-07-20Cape Canaveral FL (hand cancel)(Centennial) cachet on coverUS-ERS-17 launch
United States1965-07-20Cape Canaveral FL(Jarrett? purple rubber-stamp) cachet (and signature) on coverUS-ERS-17 launch ("Atlas-Agena spy")
United States1965-07-20
1963-10-17
Satellite Beach FL
Cape Canaveral FL
(Rank velvet) cachet on coverUS-ERS-17 launch
Vela-1/2 launch
United States
United Nations
1965-07-20
1964-10-23
Satellite Beach FL
United Nations NY
(Rank velvet) cachet on coverUS-ERS-17 launch
UN 133 FDC
1967-04-28: US-ERS-18 (and Vela-7/8 and OV5-1/3)
United States1967-04-28Cape Canaveral FL(Astro Covers green, no logo) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(Astro Covers brown, no logo) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(Orbit Covers) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(Swanson purple rubber-stamp) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(Swanson purple rubber-stamp and black typed) cachet on coverUS-ERS-18 launch
United States1967-04-28Patrick AFB, FL(SpaceCraft/Swanson) cachet on cover, also insert1 or insert1 variation (slightly different text) and insert2 and insert2 backUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(SpaceCraft/Swanson) cachet on cover, also insert1 or insert1 variation (slightly different text) and insert2 and insert2 backUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL (machine cancel)(Centennial) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL (hand cancel)(Centennial) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(Sarzin) cachet on coverUS-ERS-18 launch ("spies in the sky")
United States1967-04-28Kennedy Space Center FL(Centennial-like) cachet on coverUS-ERS-18 launch
United States1967-04-28Cape Canaveral FL(Hand-printed) cachet on coverUS-ERS-18 launch


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Updated: 2023-05-30