Key statistics
Satellite COSMOS 620 at a glance.
Uptime
18945
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: 74.0324 deg
SMA: 7853.915 km
Apoapsis: 1493.721 km
Periapsis: 1457.839 km
RAAN: 38.9999 deg
Eccentricy: 0.0022843
Argument of periapsis: 272.4102 deg
Mean anomaly: 259.7835 deg
Mean motion: 12.47307296 rev/day
Mean motion (dot): -0.00000013 rev/day2
B* drag term: 0.000020128 1/REarth
Two-line elements (TLE)
Creation date: Oct. 31, 2025, 10:56 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 31, 2025, 6:27 p.m. UTC
TLE line 0: 0 COSMOS 620
TLE line 1: 1 6988U 73104D 25304.76893747 -.00000013 00000-0 20128-4 0 9993
TLE line 2: 2 6988 74.0324 38.9999 0022843 272.4102 259.7835 12.47307296361670
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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