CGRO

Compton Gamma Ray Observatory
(CGRO) satellite

CGRO patch
satellitepatch

This page contains philatelic information on the Compton Gamma Ray Observatory (CGRO) satellite. 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.

CGRO was named in honor of Nobel Prize winning physicist Dr. Arthur Holly Compton (1892 - 1962).

CGRO is one of four NASA "Great Observatories", along with the Hubble Space Telescope (HST), the Chandra X-ray Observatory (CXO), and the Spitzer Space Telescope (SST).

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)
Compton / CGRO Compton / CGRO Compton / CGRO


Below is a list of Compton / CGRO satellite postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).

CountryCatalog NumberType of ItemYear of IssueNotes on Content
Compton / CGRO
GermanyB859 (Mi2081)Hologram on stamp1999(design-variation) CGRO
Guinea RepublicMi5873A
Mi5873B
From MS6 (Mi5873A-5878A)
From imperforate MS6 (Mi5873B-5878B)
2008"International Gamma-Ray Astrophysics Laboratory" (CGRO)
Guinea RepublicMi5878A
Mi5878B
Guinea RepublicMi5873A-5878A_ms6 fdcMS6 on FDC
Mali688a (BL68A)
i688a (BL68B)
In (left) margin of SS1 (688)
In (left) margin of imperforate SS1 (i688)
1995"Compton - GRO"


Below is a list of Compton / CGRO satellite launch covers (including anniversary-of-launch covers, and launch-related event covers).

CountryCancel DateCancel LocationType of ItemNotes on Content
1991-04-05: Compton / CGRO (from STS-37)
United States1991-03-15Kennedy Space Center FL(Blue rubber-stamp) cachet on coverSTS-37 rollout
United States1991-04-02Kennedy Space Center FL(Blue and red rubber-stamp) cachet on coverSTS-37 count-down
United States1991-04-05Kennedy Space Center FL(Mission patch) cachet on cover, also insertSTS-37 launch
United States1991-04-05Kennedy Space Center FL(Mission patch) cachet (and signature) on cover, also insertSTS-37 launch
United States1991-04-05Kennedy Space Center FL (machine cancel)(Cyan mission patch) cachet on postcardSTS-37 launch
United States1991-04-05Kennedy Space Center FL (hand cancel)(Cyan mission patch) cachet on postcardSTS-37 launch
United States1991-04-05Kennedy Space Center FL(Black rubber-stamp) cachet on coverSTS-37 launch
United States1991-04-05Nassau Bay Branch, Houston TX(Magenta rubber-stamp) cachet on coverSTS-37 launch
United States1991-04-05Houston TX(Green printed) cachet on coverSTS-37 launch
United States1991-04-05Marshall Space Flight Center AL(Black rubber-stamp) cachet on coverSTS-37 launch
United States1991-04-05Nassau Bay Branch, Houston TX(Colorano silk) cachet on coverSTS-37 launch
United States1991-04-05Kennedy Space Center FL(Colorano silk) cachet on coverSTS-37 launch
Germany
United States
1991-04-05
1991-05-07
Ottobrunn
Nassau Bay Branch, Houston TX
(Magenta and green rubber-stamp) cachet on coverSTS-37 launch
CGRO deployed
United States1991-04-05
1991-05-07
Kennedy Space Center FL
Nassau Bay Branch, Houston TX
(Blue and red rubber-stamp) cachet on coverSTS-37 launch
CGRO deployed
United States1991-04-05
1991-05-11
Kennedy Space Center FL
Edwards AFB, CA
(Mission patch) cachet on coverSTS-37 launch
STS-37 landing
United States1991-04-05
1991-04-06
1991-05-11
Kennedy Space Center FL
Houston TX
Edwards AFB, CA
(Blue printed) cachet on coverSTS-37 launch
unknown event
STS-37 landing
United States1991-04-06Houston TX(Black and red and blue rubber-stamp) cachet on coverunknown event
United States1991-04-09Nassau Bay Branch, Houston TX(Cyan rubber-stamp) cachet on cover"Crew Conference"
United States1991-04-10Edwards AFB, CA(Blue and red rubber-stamp) cachet on coverSTS-37 landing postponed
United States1991-04-11Edwards AFB, CA(Mission patch) cachet on coverSTS-37 landing
United States1991-04-11Edwards AFB, CA(Titusville Moonport Stamp Club) cachet on coverSTS-37 landing


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Updated: 2018-07-31