Spacecraft information: COSMOS 997
| Launched | 29 March 1978 |
| Flight ended | 29 March 1978 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10770 |
| COSPAR ID | 1978-032A |
| Observing |
Launched alongside
COSMOS 998 SL-13 R/B COSMOS 999 SL-4 R/B SL-13 DEB COSMOS 999 DEB COSMOS 999 DEB COSMOS 999 DEB