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Entry no.
1978-0302

DELTA 1 R/B(2)

DELTA 1 R/B(2) (NORAD 6687) returned from deep space and re-entered Earth’s atmosphere on 1 July 1978, 5 years after launch.

Official date
NORAD number
6687
International designator
1973-039B
Object type
Rocket body
Country
United States
Launched
10 Jun 1973Cape Canaveral
Flight ended (UTC)
1 Jul 1978UTC calendar day
Time in orbit
5 years1,847 days
How it ended
Returned from deep space and re-entered
Latitude range
—
Mass
718 kg

Life in orbit

5 years

From the same launch

1973-039
1974-0031DELTA 1 R/B(1)
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Entered in the Orbital Register™, founding volume, September 2026.
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