Spacecraft information: COSMOS 1521
| Launched | 28 December 1983 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 14592 |
| COSPAR ID | 1983-127C |
| Alternative names |
GLONASS GLONASS-GVM 4 |
| Observing |
Current orbital elements
| Inclination | 66.298° |
| Eccentricity | 0.00632 |
| RA ascending node | 21.665 hr |
| Argument perigee | 190.385° |
| Mean anomaly | 198.881° |
| Orbital period | 673.409 min |
| Epoch of osculation | 11 Jun 2026, 08:44 |
Derived Quantities
| Min Altitude | 18917.7 km |
| Mean Altitude | 19078.5 km |
| Peak Altitude | 19239.3 km |
Orbital History
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