COSMOS 1243
| Launched | 1 February 1981 |
| Flight ended | 1 February 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 | 12160 |
| COSPAR ID | 1981-010A |
| Observing |
Launched alongside
SL-11 R/B