CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1976-0420
DELTA 1 R/B(1)
DELTA 1 R/B(1) (NORAD 8478) re-entered Earth’s atmosphere on 7 August 1976, after 7 months in orbit.
Official date
NORAD number
8478
International designator
1975-117B
Object type
Rocket body
Country
United States
Launched
13 Dec 1975Cape Canaveral
Re-entered (UTC)
7 Aug 1976UTC calendar day
Time in orbit
7 months238 days
How it ended
Re-entered (natural decay)
Latitude range
28.3°N to 28.3°SFinal inclination 28.3°
Mass
845 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 28.3°, allowed a re-entry anywhere between 28.3°N and 28.3°S.
Life in orbit
7 monthsDELTA 1 R/B(1)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 7 Aug 1976
1 entryFrom the same launch
1975-117
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1976-0420
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1976-0420
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.