Spacecraft information: COSMOS 1858
| Launched | 15 June 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18119 |
| COSPAR ID | 1987-051G |
| Observing |
Current orbital elements
| Inclination | 74.005° |
| Eccentricity | 0.00489 |
| RA ascending node | 13.346 hr |
| Argument perigee | 222.777° |
| Mean anomaly | 208.134° |
| Orbital period | 114.646 min |
| Epoch of osculation | 26 Mar 2026, 09:59 |
Derived Quantities
| Min Altitude | 1408.2 km |
| Mean Altitude | 1446.5 km |
| Peak Altitude | 1484.7 km |
Launched alongside
COSMOS 1852 COSMOS 1853 COSMOS 1854 COSMOS 1855 COSMOS 1856 COSMOS 1857 COSMOS 1859 SL-8 R/BOrbital History
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