CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0263
DIAMANT DEB
DIAMANT DEB (NORAD 3970) re-entered Earth’s atmosphere on 28 May 1981.
Official dateFragment record
NORAD number
3970
International designator
1966-013J
Object type
Fragment
Country
France
Parent launched
17 Feb 1966Hammaguir
Re-entered (UTC)
28 May 1981UTC calendar day
Time since launch
15 years, 3 months5,579 days
How it ended
Re-entered (natural decay)
Latitude range
35.0°N to 35.0°SFinal inclination 35.0°
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 35.0°, allowed a re-entry anywhere between 35.0°N and 35.0°S.
Life in orbit
DIAMANT DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 28 May 1981
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0263
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0263
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.