Key statistics
Satellite COSMOS 1855 at a glance.
Uptime
13967
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 1855.
Object identification
Identified? True
Debris? False
Object name: COSMOS 1855
International designator: 1987-051D
Object number (NORAD): 18116
Object ID (CCSDS): 18116
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 115.133 minutes
Inclination: 74.0025 deg
SMA: 7839.591 km
Apoapsis: 1476.789 km
Periapsis: 1446.122 km
RAAN: 290.1132 deg
Eccentricy: 0.00195589
Argument of periapsis: 11.0394 deg
Mean anomaly: 161.175 deg
Mean motion: 12.50727437 rev/day
Mean motion (dot): -0.00000012 rev/day2
B* drag term: 0.000024203089 1/REarth
Two-line elements (TLE)
Creation date: Sept. 11, 2025, 3:57 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 10, 2025, 8:36 p.m. UTC
TLE line 0: 0 COSMOS 1855
TLE line 1: 1 18116U 87051D 25253.85872986 -.00000012 00000-0 24203-4 0 9997
TLE line 2: 2 18116 74.0025 290.1132 0019559 11.0394 161.1750 12.50727437745883
Live tracking on map
Real-time ground track for satellite COSMOS 1855.
In-orbit conjunctions
There are no conjunctions computed for COSMOS 1855, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Military communications satellites
COSMOS 1855 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 321-328’, on board a Kosmos-3M space rocket.
The launch took place on June 16, 1987, 5:51 p.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 321-328
Agency: N/A
Status: Launch Successful
Launch date: June 16, 1987, 5:51 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
...
Latest news about this satellite
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