SL-3 R/B
Launch
Launched on Oct 13, 1981 from 43/3 (43L), Russia aboard a Vostok 8A92M.
Vostok 8A92M | Tselina-D 31 →Live · TLE epoch 2026-10-24 04:17 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
Oct 13, 1981
Mass
—
Apogee
508 km
Perigee
493 km
Inclination
81.16°
Period
1.57 h
Altitude history
Apogee and perigee for SL-3 R/B across 148 days of archived orbital elements (150 element sets, one per day).
Trend
Decaying
Change
-3.1 km
Rate
-0.02 km/day
Now
493 × 508 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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