COSMOS 1256

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 1256 at a glance.

Uptime

16359

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 1256.

Object identification

Identified? True

Debris? False

Object name: COSMOS 1256

International designator: 1981-022G

Object number (NORAD): 12326

Object ID (CCSDS): 12326

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 115.237 minutes

Inclination: 74.028 deg

SMA: 7844.317 km

Apoapsis: 1475.616 km

Periapsis: 1456.749 km

RAAN: 227.3951 deg

Eccentricy: 0.00120257

Argument of periapsis: 68.4885 deg

Mean anomaly: 42.1657 deg

Mean motion: 12.49597159 rev/day

Mean motion (dot): 0.00000011 rev/day2

B* drag term: 0.00017608268 1/REarth

Two-line elements (TLE)

Creation date: Dec. 19, 2025, 2:08 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 18, 2025, 11:17 p.m. UTC

TLE line 0: 0 COSMOS 1256

TLE line 1: 1 12326U 81022G 25352.97039110 .00000011 00000-0 17608-3 0 9991

TLE line 2: 2 12326 74.0280 227.3951 0012026 68.4885 42.1657 12.49597159 43088

Live tracking on map

Real-time ground track for satellite COSMOS 1256.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 1256.

Target Orbit TCA Probability of collision Miss distance Type
DELTA 1 DEB SSO 2025-11-19 04:12:05 0.002787338 116.0 (m) DEBRIS
COSMOS 2010 LEO 2024-07-30 16:40:17 0.0004778976 44.0 (m) PAYLOAD

Associated space launch

Military communications satellites

COSMOS 1256 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 209-216’, on board a Kosmos-3M space rocket.

The launch took place on March 6, 1981, 11:31 a.m. from 132/2.

For more information about the launch, click the button.

Launch to space Kosmos-3M | Strela-1M 209-216
Kosmos-3M | Strela-1M 209-216

Agency: N/A

Status: Launch Successful

Launch date: March 6, 1981, 11:31 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/2

Location: Plesetsk Cosmodrome, Russian Federation

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