Key statistics
Satellite COSMOS 1821 at a glance.
Uptime
14024
Days in orbit
Revolutions
≈ 13.7
Per day
Orbit
LEO
Low Earth Orbit
Inclination
82.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 1821.
Object identification
Identified? True
Debris? False
Object name: COSMOS 1821
International designator: 1987-017A
Object number (NORAD): 17525
Object ID (CCSDS): 17525
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.81 minutes
Inclination: 82.9111 deg
SMA: 7363.691 km
Apoapsis: 1012.674 km
Periapsis: 958.437 km
RAAN: 61.1787 deg
Eccentricy: 0.0036827
Argument of periapsis: 174.5293 deg
Mean anomaly: 300.476 deg
Mean motion: 13.73913731 rev/day
Mean motion (dot): 0.00000064 rev/day2
B* drag term: 0.000051306 1/REarth
Two-line elements (TLE)
Creation date: July 11, 2025, 6:37 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 11, 2025, 4:08 a.m. UTC
TLE line 0: 0 COSMOS 1821
TLE line 1: 1 17525U 87017A 25192.17225065 .00000064 00000-0 51306-4 0 9999
TLE line 2: 2 17525 82.9111 61.1787 0036827 174.5293 300.4760 13.73913731908398
Live tracking on map
Real-time ground track for satellite COSMOS 1821.
Associated space launch
Navigation satellite providing location information for the Tsiklon-B navigation system
COSMOS 1821 was lifted into orbit during the mission ‘Kosmos-3M | Parus 58’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 18, 1987, 1:53 p.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Parus 58
Agency: N/A
Status: Launch Successful
Launch date: Feb. 18, 1987, 1:53 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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