COSMOS 2173

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 2173 at a glance.

Uptime

12276

Days in orbit

Revolutions

≈ 13.8

Per day

Orbit

LEO

Low Earth Orbit

Inclination

83.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for COSMOS 2173.

Object identification

Identified? True

Debris? False

Object name: COSMOS 2173

International designator: 1991-081A

Object number (NORAD): 21796

Object ID (CCSDS): 21796

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 104.672 minutes

Inclination: 82.9549 deg

SMA: 7357.231 km

Apoapsis: 1014.509 km

Periapsis: 943.684 km

RAAN: 66.5013 deg

Eccentricy: 0.0048133

Argument of periapsis: 225.7415 deg

Mean anomaly: 179.7793 deg

Mean motion: 13.75723523 rev/day

Mean motion (dot): 0.00000054 rev/day2

B* drag term: 0.000039798 1/REarth

Two-line elements (TLE)

Creation date: July 6, 2025, 10:26 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 6, 2025, 7:21 p.m. UTC

TLE line 0: 0 COSMOS 2173

TLE line 1: 1 21796U 91081A 25187.80640111 .00000054 00000-0 39798-4 0 9997

TLE line 2: 2 21796 82.9549 66.5013 0048133 225.7415 179.7793 13.75723523687204

Live tracking on map

Real-time ground track for satellite COSMOS 2173.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 2173.

Target Orbit TCA Probability of collision Miss distance Type
FENGYUN 1C DEB SSO 2025-06-15 14:43:31 0.0001288578 506.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2025-05-15 03:52:19 0.0002987725 933.0 (m) DEBRIS
DMSP 5D-2 F11 DEB SSO 2025-03-10 05:32:45 0.0001578584 993.0 (m) DEBRIS
THORAD AGENA D DEB SSO 2024-12-02 00:48:18 0.0001004653 351.0 (m) DEBRIS

Associated space launch

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

COSMOS 2173 was lifted into orbit during the mission ‘Kosmos-3M | Parus 74’, on board a Kosmos-3M space rocket.

The launch took place on Nov. 27, 1991, 3:30 a.m. from 133/3 (133L).

For more information about the launch, click the button.

Launch to space Kosmos-3M | Parus 74
Kosmos-3M | Parus 74

Agency: N/A

Status: Launch Successful

Launch date: Nov. 27, 1991, 3:30 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 133/3 (133L)

Location: Plesetsk Cosmodrome, Russian Federation

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