COSMOS 645

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 645 at a glance.

Uptime

18709

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 645.

Object identification

Identified? True

Debris? False

Object name: COSMOS 645

International designator: 1974-024E

Object number (NORAD): 7269

Object ID (CCSDS): 7269

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 114.328 minutes

Inclination: 74.0202 deg

SMA: 7803.002 km

Apoapsis: 1481.504 km

Periapsis: 1368.229 km

RAAN: 316.1268 deg

Eccentricy: 0.0072584

Argument of periapsis: 319.4098 deg

Mean anomaly: 50.9342 deg

Mean motion: 12.59534904 rev/day

Mean motion (dot): -0.00000018 rev/day2

B* drag term: -0.0000072734 1/REarth

Two-line elements (TLE)

Creation date: July 11, 2025, 6:37 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 11, 2025, 2:01 p.m. UTC

TLE line 0: 0 COSMOS 645

TLE line 1: 1 07269U 74024E 25192.58469579 -.00000018 00000-0 -72734-5 0 9992

TLE line 2: 2 07269 74.0202 316.1268 0072584 319.4098 50.9342 12.59534904354768

Live tracking on map

Real-time ground track for satellite COSMOS 645.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 645.

Target Orbit TCA Probability of collision Miss distance Type
THORAD DELTA 1 DEB SSO 2025-03-25 22:30:03 0.000119705 547.0 (m) DEBRIS
COSMOS 708 LEO 2025-02-26 08:26:17 0.0003020787 238.0 (m) PAYLOAD

Associated space launch

Military communications satellites

COSMOS 645 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 65-72’, on board a Kosmos-3M space rocket.

The launch took place on April 23, 1974, 2:14 p.m. from 132/2.

For more information about the launch, click the button.

Launch to space Kosmos-3M | Strela-1M 65-72
Kosmos-3M | Strela-1M 65-72

Agency: N/A

Status: Launch Successful

Launch date: April 23, 1974, 2:14 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/2

Location: Plesetsk Cosmodrome, Russian Federation

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