Spacecraft information: COSMOS 1998
| Launched | 9 February 1989 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 19789 |
| COSPAR ID | 1989-009E |
| Observing |
Current orbital elements
| Inclination | 82.610° |
| Eccentricity | 0.00161 |
| RA ascending node | 2.813 hr |
| Argument perigee | 169.091° |
| Mean anomaly | 191.054° |
| Orbital period | 113.840 min |
| Epoch of osculation | 26 Feb 2026, 10:04 |
Derived Quantities
| Min Altitude | 1397.3 km |
| Mean Altitude | 1409.8 km |
| Peak Altitude | 1422.3 km |
Orbital History
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