Key statistics
Satellite COSMOS 620 at a glance.
Uptime
18994
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 620.
Object identification
Identified? True
Debris? False
Object name: COSMOS 620
International designator: 1973-104D
Object number (NORAD): 6988
Object ID (CCSDS): 6988
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 115.449 minutes
Inclination: 74.0304 deg
SMA: 7853.911 km
Apoapsis: 1493.438 km
Periapsis: 1458.113 km
RAAN: 334.3113 deg
Eccentricy: 0.0022489
Argument of periapsis: 201.2509 deg
Mean anomaly: 333.0012 deg
Mean motion: 12.47308344 rev/day
Mean motion (dot): -0.00000019 rev/day2
B* drag term: -0.000022723209 1/REarth
Two-line elements (TLE)
Creation date: Dec. 20, 2025, 3:40 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 19, 2025, 4:35 p.m. UTC
TLE line 0: 0 COSMOS 620
TLE line 1: 1 06988U 73104D 25353.69102066 -.00000019 00000-0 -22723-4 0 9996
TLE line 2: 2 06988 74.0304 334.3113 0022489 201.2509 333.0012 12.47308344367771
Live tracking on map
Real-time ground track for satellite COSMOS 620.
In-orbit conjunctions
A list of the most updated potential collisions computed for object COSMOS 620.
Associated space launch
Military communications satellites
COSMOS 620 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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