CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1973-0490
SL-4 DEB
SL-4 DEB (NORAD 6840) re-entered Earth’s atmosphere on 3 November 1973.
Official dateFragment record
NORAD number
6840
International designator
1973-067D
Object type
Fragment
Country
USSR
Parent launched
27 Sep 1973Baikonur Cosmodrome
Re-entered (UTC)
3 Nov 1973UTC calendar day
Time since launch
1 month37 days
How it ended
Re-entered (natural decay)
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
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 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.
Life in orbit
SL-4 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1973-067
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0490
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1973-0490
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.