Key statistics
Satellite OKEAN 3 at a glance.
Uptime
12515
Days in orbit
Revolutions
≈ 15.0
Per day
Orbit
LEO
Low Earth Orbit
Inclination
82.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for OKEAN 3.
Object identification
Identified? True
Debris? False
Object name: OKEAN 3
International designator: 1991-039A
Object number (NORAD): 21397
Object ID (CCSDS): 21397
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 95.793 minutes
Inclination: 82.5195 deg
SMA: 6935.063 km
Apoapsis: 565.879 km
Periapsis: 547.978 km
RAAN: 153.8506 deg
Eccentricy: 0.00129062
Argument of periapsis: 228.6 deg
Mean anomaly: 131.4117 deg
Mean motion: 15.03235826 rev/day
Mean motion (dot): 0.0000351 rev/day2
B* drag term: 0.00025695545 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 6:55 p.m. UTC
TLE line 0: 0 OKEAN 3
TLE line 1: 1 21397U 91039A 25250.78833173 .00003510 00000-0 25696-3 0 9998
TLE line 2: 2 21397 82.5195 153.8506 0012906 228.6000 131.4117 15.03235826837548
Live tracking on map
Real-time ground track for satellite OKEAN 3.
Associated space launch
Ocean observation satellite
OKEAN 3 was lifted into orbit during the mission ‘Tsiklon-3 | Okean-O1 6’, on board a Tsiklon-3 space rocket.
The launch took place on June 4, 1991, 8:10 a.m. from 32/2.
For more information about the launch, click the button.
Tsiklon-3 | Okean-O1 6
Agency: N/A
Status: Launch Successful
Launch date: June 4, 1991, 8:10 a.m. UTC
Rocket: Tsiklon-3
Launch pad: 32/2
Location: Plesetsk Cosmodrome, Russian Federation
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