COSMOS 1266 DEB
| Launched | 20 April 1981 |
| Flight ended | 30 April 1981 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12434 |
| COSPAR ID | 1981-037C |
| Alternative names |
ANTENNA |
| Observing |