Key statistics
Satellite COSMOS 621 at a glance.
Uptime
18830
Days in orbit
Revolutions
≈ 12.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 621.
Object identification
Identified? True
Debris? False
Object name: COSMOS 621
International designator: 1973-104E
Object number (NORAD): 6989
Object ID (CCSDS): 6989
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 114.771 minutes
Inclination: 74.0262 deg
SMA: 7823.158 km
Apoapsis: 1484.399 km
Periapsis: 1405.648 km
RAAN: 206.8222 deg
Eccentricy: 0.0050332
Argument of periapsis: 5.3353 deg
Mean anomaly: 163.818 deg
Mean motion: 12.54670268 rev/day
Mean motion (dot): 0.0000001 rev/day2
B* drag term: 0.00016132 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 5:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 8, 2025, 12:52 p.m. UTC
TLE line 0: 0 COSMOS 621
TLE line 1: 1 06989U 73104E 25189.53613204 .00000010 00000-0 16132-3 0 9993
TLE line 2: 2 06989 74.0262 206.8222 0050332 5.3353 163.8180 12.54670268361153
Live tracking on map
Real-time ground track for satellite COSMOS 621.
In-orbit conjunctions
There are no conjunctions computed for COSMOS 621, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Military communications satellites
COSMOS 621 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 57-64’, on board a Kosmos-3M space rocket.
The launch took place on Dec. 19, 1973, 9:43 a.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 57-64
Agency: N/A
Status: Launch Successful
Launch date: Dec. 19, 1973, 9:43 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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