COSMOS 1891

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 1891 at a glance.

Uptime

13835

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 1891.

Object identification

Identified? True

Debris? False

Object name: COSMOS 1891

International designator: 1987-087A

Object number (NORAD): 18402

Object ID (CCSDS): 18402

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 104.811 minutes

Inclination: 82.9183 deg

SMA: 7363.744 km

Apoapsis: 1021.658 km

Periapsis: 949.56 km

RAAN: 70.8978 deg

Eccentricy: 0.00489543

Argument of periapsis: 248.7393 deg

Mean anomaly: 110.8531 deg

Mean motion: 13.7389875 rev/day

Mean motion (dot): 0.00000066 rev/day²

B* drag term: 0.000054577819 1/R_Earth

Two-line elements (TLE)

Creation date: Aug. 30, 2025, 3:38 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Aug. 29, 2025, 10:53 p.m. UTC

TLE line 0: 0 COSMOS 1891

TLE line 1: 1 18402U 87087A 25241.95357378 .00000066 00000-0 54578-4 0 9991

TLE line 2: 2 18402 82.9183 70.8978 0048954 248.7393 110.8531 13.73898750898615

Live tracking on map

Real-time ground track for satellite COSMOS 1891.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 1891.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
COSMOS 1934	LEO	2024-11-14 03:17:26	0.0007673555	108.0 (m)	PAYLOAD

Associated space launch

Navigation satellite providing location information for the Tsiklon-B navigation system

COSMOS 1891 was lifted into orbit during the mission ‘Kosmos-3M | Parus 60’, on board a Kosmos-3M space rocket.

The launch took place on Oct. 14, 1987, 12:35 p.m. from 133/3 (133L).

For more information about the launch, click the button.

Kosmos-3M | Parus 60

Agency: N/A

Status: Launch Successful

Launch date: Oct. 14, 1987, 12:35 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 133/3 (133L)

Location: Plesetsk Cosmodrome, Russian Federation

...

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