Photo: Joel Kowsky · Public domain (US government)
Mission
Government/Top Secret · LEO
The Neman or Yantar-4KS1M satellites were improved versions of the Terilen elctro-optical reconnaissance satellites. They were transmitting the data via Potok (Geizer) relay satellites.
What it put in orbit
| Object | Type | Orbit | Globe |
|---|---|---|---|
| COSMOS 2153 1991-049A | Payload | re-entered 1992-03-13 | |
| SL-4 R/B 1991-049B | Rocket body | re-entered 1991-07-13 |
COSPAR ID 1991-049 (data from GCAT, J. McDowell, CC BY 4.0). Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).