COSMOS 623

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 623 at a glance.

Uptime

18994

Days in orbit

Revolutions

≈ 12.6

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for COSMOS 623.

Object identification

Identified? True

Debris? False

Object name: COSMOS 623

International designator: 1973-104G

Object number (NORAD): 6991

Object ID (CCSDS): 6991

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 114.563 minutes

Inclination: 74.0285 deg

SMA: 7813.678 km

Apoapsis: 1484.623 km

Periapsis: 1386.463 km

RAAN: 238.684 deg

Eccentricy: 0.0062813

Argument of periapsis: 352.5807 deg

Mean anomaly: 180.8542 deg

Mean motion: 12.5695423 rev/day

Mean motion (dot): 0.00000008 rev/day2

B* drag term: 0.00014729 1/REarth

Two-line elements (TLE)

Creation date: Dec. 19, 2025, 9:06 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 19, 2025, 10:34 a.m. UTC

TLE line 0: 0 COSMOS 623

TLE line 1: 1 6991U 73104G 25353.44072259 .00000008 00000-0 14729-3 0 9995

TLE line 2: 2 6991 74.0285 238.6840 0062813 352.5807 180.8542 12.56954230386084

Live tracking on map

Real-time ground track for satellite COSMOS 623.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 623.

Target Orbit TCA Probability of collision Miss distance Type
SL-6 R/B(2) HEO 2025-12-17 04:27:35 0.004042352 137.0 (m) ROCKET BODY
THORAD DELTA 1 DEB SSO 2024-12-28 07:46:36 0.0002053772 95.0 (m) DEBRIS
COSMOS 2499 DEB LEO 2024-10-07 14:50:31 0.0001225526 759.0 (m) DEBRIS

Associated space launch

Military communications satellites

COSMOS 623 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 57-64’, on board a Kosmos-3M space rocket.

The launch took place on Dec. 19, 1973, 9:43 a.m. from 132/2.

For more information about the launch, click the button.

Launch to space Kosmos-3M | Strela-1M 57-64
Kosmos-3M | Strela-1M 57-64

Agency: N/A

Status: Launch Successful

Launch date: Dec. 19, 1973, 9:43 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/2

Location: Plesetsk Cosmodrome, Russian Federation

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