COSMOS 861 DEB
| Launched | 20 October 1976 |
| Flight ended | 24 December 1976 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 9632 |
| COSPAR ID | 1976-104D |
| Alternative names |
ANTENNA |
| Observing |