CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0343
SL-11 DEB
SL-11 DEB (NORAD 17399) re-entered Earth’s atmosphere on 29 July 1990.
Official dateFragment record
NORAD number
17399
International designator
1987-011C
Object type
Fragment
Country
USSR
Parent launched
1 Feb 1987Baikonur Cosmodrome
Re-entered (UTC)
29 Jul 1990UTC calendar day
Time since launch
3 years, 5 months1,274 days
How it ended
Re-entered (natural decay)
Latitude range
64.9°N to 64.9°SFinal inclination 64.9°
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 64.9°, allowed a re-entry anywhere between 64.9°N and 64.9°S.
Life in orbit
SL-11 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 29 Jul 1990
1 entryFrom the same launch
1987-011
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0343
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0343
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.