COSMOS 1503

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 1503 at a glance.

Uptime

15300

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: 100.488 minutes

Inclination: 74.0429 deg

SMA: 7159.846 km

Apoapsis: 790.364 km

Periapsis: 773.058 km

RAAN: 282.0683 deg

Eccentricy: 0.00120854

Argument of periapsis: 116.3252 deg

Mean anomaly: 243.9143 deg

Mean motion: 14.33003549 rev/day

Mean motion (dot): 0.00000189 rev/day²

B* drag term: 0.000078574838 1/R_Earth

Two-line elements (TLE)

Creation date: Sept. 1, 2025, 2:20 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Aug. 31, 2025, 7:46 p.m. UTC

TLE line 0: 0 COSMOS 1503

TLE line 1: 1 14401U 83103A 25243.82403273 .00000189 00000-0 78575-4 0 9994

TLE line 2: 2 14401 74.0429 282.0683 0012085 116.3252 243.9143 14.33003549188031

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
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
CZ-2C DEB	SSO	2024-10-08 09:39:05	0.0003935326	46.0 (m)	DEBRIS
COSMOS 1275 DEB	LEO	2024-09-23 21:20:34	0.0001445287	466.0 (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.

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

...

Go to the launch

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