CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1985-0159
COSMOS 1644 DEB
COSMOS 1644 DEB (NORAD 15658) re-entered Earth’s atmosphere on 16 June 1985.
Official dateFragment record
NORAD number
15658
International designator
1985-027N
Object type
Fragment
Country
USSR
Parent launched
3 Apr 1985Baikonur Cosmodrome
Re-entered (UTC)
16 Jun 1985UTC calendar day
Time since launch
2 months74 days
How it ended
Re-entered (natural decay)
Latitude range
69.5°N to 69.5°SFinal inclination 69.5°
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 69.5°, allowed a re-entry anywhere between 69.5°N and 69.5°S.
Life in orbit
COSMOS 1644 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1985-027
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1985-0159
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1985-0159
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.