Key statistics
Satellite COSMOS 397 at a glance.
Uptime
20015
Days in orbit
Revolutions
≈ 12.7
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
65.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 397.
Object identification
Identified? True
Debris? False
Object name: COSMOS 397
International designator: 1971-015A
Object number (NORAD): 4964
Object ID (CCSDS): 4964
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 112.95 minutes
Inclination: 65.7211 deg
SMA: 7740.185 km
Apoapsis: 2160.852 km
Periapsis: 563.248 km
RAAN: 152.7087 deg
Eccentricy: 0.1032019
Argument of periapsis: 310.9032 deg
Mean anomaly: 40.6913 deg
Mean motion: 12.74898912 rev/day
Mean motion (dot): 0.00000073 rev/day2
B* drag term: 0.000070136 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 7:06 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 8:48 p.m. UTC
TLE line 0: 0 COSMOS 397
TLE line 1: 1 4964U 71015A 25345.86705384 .00000073 00000-0 70136-4 0 9998
TLE line 2: 2 4964 65.7211 152.7087 1032019 310.9032 40.6913 12.74898912644379
Live tracking on map
Real-time ground track for satellite COSMOS 397.
Associated space launch
The I2P satellites were the first soviet coorbital ASAT system.
COSMOS 397 was lifted into orbit during the mission ‘Tsiklon-2 | I2P 6’, on board a Tsiklon-2 space rocket.
The launch took place on Feb. 25, 1971, 11:11 a.m. from 90/20.
For more information about the launch, click the button.
Tsiklon-2 | I2P 6
Agency: N/A
Status: Launch Successful
Launch date: Feb. 25, 1971, 11:11 a.m. UTC
Rocket: Tsiklon-2
Launch pad: 90/20
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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