CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1973-0256

COSMOS 557

COSMOS 557 (NORAD 6498) re-entered Earth’s atmosphere on 22 May 1973, after 11 days in orbit.

Official date
NORAD number
6498
International designator
1973-026A
Object type
Spacecraft
Country
USSR
Launched
11 May 1973Baikonur Cosmodrome
Re-entered (UTC)
22 May 1973UTC calendar day
Time in orbit
11 days11 days
How it ended
Re-entered (natural decay)
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
Mass
18,500 kg
Operator
TsKBEM
Built by
ZIKh
Bus
Almaz
Programme
DOS

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 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.

Life in orbit

11 days

Also ended on 22 May 1973

5 entries
1973-0255COSMOS 554 DEB1973-0257COSMOS 554 DEB1973-0258COSMOS 554 DEB1973-0259COSMOS 554 DEB1973-0260COSMOS 554 DEB

From the same launch

1973-026
1973-0236SL-13 R/B
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0256
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