Key statistics
Satellite COSMOS 397 DEB * at a glance.
Uptime
20015
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
66.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 397 DEB *.
Object identification
Identified? True
Debris? True
Object name: COSMOS 397 DEB *
International designator: 1971-015BT
Object number (NORAD): 5529
Object ID (CCSDS): 5529
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 99.889 minutes
Inclination: 66.8409 deg
SMA: 7131.344 km
Apoapsis: 792.849 km
Periapsis: 713.568 km
RAAN: 139.3254 deg
Eccentricy: 0.00555862
Argument of periapsis: 238.3562 deg
Mean anomaly: 121.2114 deg
Mean motion: 14.41603136 rev/day
Mean motion (dot): 0.00004337 rev/day2
B* drag term: 0.0013318215 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 3:48 a.m. UTC
TLE line 0: 0 COSMOS 397 DEB *
TLE line 1: 1 05529U 71015BT 25346.15899999 .00004337 00000-0 13318-2 0 9999
TLE line 2: 2 05529 66.8409 139.3254 0055586 238.3562 121.2114 14.41603136832386
Live tracking on map
Real-time ground track for satellite COSMOS 397 DEB *.
In-orbit conjunctions
A list of the most updated potential collisions computed for object COSMOS 397 DEB *.
Associated space launch
The I2P satellites were the first soviet coorbital ASAT system.
COSMOS 397 DEB * 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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