CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1975-0096

Kapsula Kosmosa-721

Nauka 5KSA No. 2

Kapsula Kosmosa-721 (NORAD 7721) re-entered Earth’s atmosphere on 8 April 1975, after 13 days in orbit.

Official dateIdentified from the historical record
NORAD number
7721
International designator
1975-020F
Object type
Spacecraft
Official listing
COSMOS 721 DEBListed as a fragment
Country
USSR
Launched
26 Mar 1975Plesetsk Cosmodrome
Re-entered (UTC)
8 Apr 1975UTC calendar dayAlso recorded as 10 Apr 1975
Time in orbit
13 days13 days
How it ended
Re-entered (natural decay)
Latitude range
81.3°N to 81.3°SFinal inclination 81.3°
Mass
630 kg
Operator
TsSKB
Built by
TsSKB
Bus
Nauka
Programme
Nauka 5KS

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 81.3°, allowed a re-entry anywhere between 81.3°N and 81.3°S.

Life in orbit

13 days

Also ended on 8 Apr 1975

1 entry
1975-0095SALYUT 4 DEB

From the same launch

1975-020
1975-0080SL-4 R/B1975-0093COSMOS 721
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1975-0096
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