CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1991-0199

COSMOS 1839 (GLONASS)

COSMOS 1839 (GLONASS) (NORAD 17903) re-entered Earth’s atmosphere on 8 May 1991, after 4 years in orbit.

Official date
NORAD number
17903
International designator
1987-036B
Object type
Spacecraft
Country
USSR
Launched
24 Apr 1987Baikonur Cosmodrome
Re-entered (UTC)
8 May 1991UTC calendar day
Time in orbit
4 years1,475 days
How it ended
Re-entered (natural decay)
Latitude range
64.3°N to 64.3°SFinal inclination 64.3°
Mass
1,300 kg
Operator
UNKS
Built by
Omsk Av. Zav.
Bus
Uragan
Programme
Uragan

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 64.3°, allowed a re-entry anywhere between 64.3°N and 64.3°S.

Life in orbit

4 years

COSMOS 1839 (GLONASS)’s lowest and highest points above Earth, week by week, from its tracking history.

From the same launch

1987-036
1987-0150SL-12 R/B(1)1987-0313SL-12 R/B(AUX MOTOR)1987-0549SL-12 R/B(AUX MOTOR)1991-0167SL-12 R/B(2)1991-0209COSMOS 1838 (GLONASS)1991-0398COSMOS 1840 (GLONASS)
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0199
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