LowEarth

SL-16 R/B

NORAD 17590· COSPAR 1987-027B· Active satellite· Other / Unclassified· LEO
Launch
Launched on Mar 18, 1987 from 45/1, Kazakhstan aboard a Zenit-2.
Zenit-2 | GVM Tselina-2 →
Live · TLE epoch 2026-10-24 02:27 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
Mar 18, 1987
Mass
—
Apogee
843 km
Perigee
837 km
Inclination
71.00°
Period
1.69 h

Altitude history

Apogee and perigee for SL-16 R/B across 149 days of archived orbital elements (151 element sets, one per day).

Trend
Stable
Change
-0.1 km
Rate
-0.00 km/day
Now
837 × 843 km
840845835May 28Oct 25
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.

Launched with

One other catalogued object still in orbit from launch 1987-027 (Zenit-2 | GVM Tselina-2).

Sources & further reading

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