CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1979-0597
DELTA 1 R/B
DELTA 1 R/B (NORAD 3664) re-entered Earth’s atmosphere on 8 December 1979, after 10 years, 10 months in orbit.
Official date
NORAD number
3664
International designator
1969-006B
Object type
Rocket body
Country
United States
Launched
22 Jan 1969Cape Canaveral
Re-entered (UTC)
8 Dec 1979UTC calendar day
Time in orbit
10 years, 10 months3,972 days
How it ended
Re-entered (natural decay)
Latitude range
32.9°N to 32.9°SFinal inclination 32.9°
Mass
40 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 32.9°, allowed a re-entry anywhere between 32.9°N and 32.9°S.
Life in orbit
10 years, 10 monthsDELTA 1 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 8 Dec 1979
1 entryFrom the same launch
1969-006
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1979-0597
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1979-0597
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.