COSMOS 1503

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 1503 at a glance.

Uptime

15403

Days in orbit

Revolutions

≈ 14.3

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for COSMOS 1503.

Object identification

Identified? True

Debris? False

Object name: COSMOS 1503

International designator: 1983-103A

Object number (NORAD): 14401

Object ID (CCSDS): 14401

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.484 minutes

Inclination: 74.0446 deg

SMA: 7159.657 km

Apoapsis: 791.827 km

Periapsis: 771.217 km

RAAN: 94.9343 deg

Eccentricy: 0.00143927

Argument of periapsis: 263.135 deg

Mean anomaly: 96.8164 deg

Mean motion: 14.33060157 rev/day

Mean motion (dot): 0.0000028 rev/day2

B* drag term: 0.00011154181 1/REarth

Two-line elements (TLE)

Creation date: Dec. 12, 2025, 10:14 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 12, 2025, 7:19 a.m. UTC

TLE line 0: 0 COSMOS 1503

TLE line 1: 1 14401U 83103A 25346.30532323 .00000280 00000-0 11154-3 0 9991

TLE line 2: 2 14401 74.0446 94.9343 0014393 263.1350 96.8164 14.33060157202715

Live tracking on map

Real-time ground track for satellite COSMOS 1503.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 1503.

Target Orbit TCA Probability of collision Miss distance Type
CZ-4 DEB SSO 2025-11-12 20:49:54 0.002215958 84.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2025-10-18 10:40:30 0.0001217064 705.0 (m) DEBRIS
CBERS 2 SSO 2025-06-26 23:20:30 0.000138195 182.0 (m) PAYLOAD
CZ-6A DEB LEO 2025-04-29 14:05:18 0.01519195 43.0 (m) DEBRIS
COSMOS 2251 DEB LEO 2025-01-08 05:55:17 0.000394539 369.0 (m) DEBRIS

Associated space launch

Military communications satellite

COSMOS 1503 was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 33’, on board a Kosmos-3M space rocket.

The launch took place on Oct. 12, 1983, 12:20 a.m. from 132/1 (132L).

For more information about the launch, click the button.

Launch to space Kosmos-3M | Strela-2M 33
Kosmos-3M | Strela-2M 33

Agency: N/A

Status: Launch Successful

Launch date: Oct. 12, 1983, 12:20 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

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