Explorer 11
| Use attributes for filter ! | |
| Launch date | April 27, 1961, 4:16 PM GMT+2 |
|---|---|
| Inclination | 28. 9° |
| Rocket | Juno II |
| Manufacturers | NASA Goddard Space Flight Center |
| Launch site | Launch Complex 26A |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1515424 |
About Explorer 11
Explorer 11 was an American Earth-orbital satellite that carried the first space-borne gamma-ray telescope. This was the earliest beginning of space gamma-ray astronomy. Launched on April 27, 1961 by a Juno II rocket, the satellite returned data until November 17, when power supply problems ended the science mission.