SL-3 R/B
Launch
Launched on May 19, 1981 from 43/3 (43L), Russia aboard a Vostok 8A92M.
Vostok 8A92M | Tselina-D 29 →Live · TLE epoch 2026-09-08 22:19 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
May 19, 1981
Mass
—
Apogee
445 km
Perigee
421 km
Inclination
81.23°
Period
1.55 h
Altitude history
Apogee and perigee for SL-3 R/B across 103 days of archived orbital elements (105 element sets, one per day).
Trend
Decaying
Change
-5.9 km
Rate
-0.06 km/day
Now
421 × 446 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
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