CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0480
DELTA 1 R/B
DELTA 1 R/B (NORAD 64) re-entered Earth’s atmosphere on 24 September 1981, after 20 years, 10 months in orbit.
Official date
NORAD number
64
International designator
1960-016B
Object type
Rocket body
Country
United States
Launched
23 Nov 1960Cape Canaveral
Re-entered (UTC)
24 Sep 1981UTC calendar dayAlso recorded as 23 Sep 1981
Time in orbit
20 years, 10 months7,610 days
How it ended
Re-entered (natural decay)
Latitude range
48.5°N to 48.5°SFinal inclination 48.5°
Mass
24 kg
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 48.5°, allowed a re-entry anywhere between 48.5°N and 48.5°S.
Life in orbit
20 years, 10 monthsDELTA 1 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 24 Sep 1981
1 entryFrom the same launch
1960-016
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0480
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0480
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.