COSMOS 1287

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 1287 at a glance.

Uptime

16158

Days in orbit

Revolutions

≈ 12.4

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for COSMOS 1287.

Object identification

Identified? True

Debris? False

Object name: COSMOS 1287

International designator: 1981-074A

Object number (NORAD): 12636

Object ID (CCSDS): 12636

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 115.723 minutes

Inclination: 74.0306 deg

SMA: 7866.35 km

Apoapsis: 1512.441 km

Periapsis: 1463.989 km

RAAN: 144.1783 deg

Eccentricy: 0.0030797

Argument of periapsis: 348.9455 deg

Mean anomaly: 11.0913 deg

Mean motion: 12.44350914 rev/day

Mean motion (dot): 0.00000007 rev/day²

B* drag term: 0.00015778 1/R_Earth

Two-line elements (TLE)

Creation date: Oct. 31, 2025, 6:16 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 31, 2025, 4:05 p.m. UTC

TLE line 0: 0 COSMOS 1287

TLE line 1: 1 12636U 81074A 25304.67068551 .00000007 00000-0 15778-3 0 9998

TLE line 2: 2 12636 74.0306 144.1783 0030797 348.9455 11.0913 12.44350914 10001

Live tracking on map

Real-time ground track for satellite COSMOS 1287.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 1287.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
COSMOS 1823 DEB	LEO	2025-05-15 20:31:37	0.0003773486	170.0 (m)	DEBRIS
COSMOS 1560	LEO	2025-04-08 02:59:32	0.001246887	67.0 (m)	PAYLOAD
DELTA 1 DEB	SSO	2024-11-08 03:46:23	0.000269961	358.0 (m)	DEBRIS
DELTA 1 DEB	SSO	2024-10-17 13:39:04	0.0001236723	603.0 (m)	DEBRIS

Associated space launch

Military communications satellites

COSMOS 1287 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 217-224’, on board a Kosmos-3M space rocket.

The launch took place on Aug. 6, 1981, 11:49 a.m. from 132/2.

For more information about the launch, click the button.

Kosmos-3M | Strela-1M 217-224

Agency: N/A

Status: Launch Successful

Launch date: Aug. 6, 1981, 11:49 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/2

Location: Plesetsk Cosmodrome, Russian Federation

...

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