Key statistics
Satellite COSMOS 621 at a glance.
Uptime
18775
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: 74.0283 deg
SMA: 7823.162 km
Apoapsis: 1484.102 km
Periapsis: 1405.952 km
RAAN: 280.4925 deg
Eccentricy: 0.0049948
Argument of periapsis: 89.516 deg
Mean anomaly: 343.5669 deg
Mean motion: 12.5466937 rev/day
Mean motion (dot): -0.00000022 rev/day2
B* drag term: -0.000039971 1/REarth
Two-line elements (TLE)
Creation date: May 14, 2025, 5:20 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 14, 2025, 1:57 p.m. UTC
TLE line 0: 0 COSMOS 621
TLE line 1: 1 06989U 73104E 25134.58156948 -.00000022 00000-0 -39971-4 0 9997
TLE line 2: 2 06989 74.0283 280.4925 0049948 89.5160 343.5669 12.54669370354260
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
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Latest news about this satellite
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