COSMOS 397

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 397 at a glance.

Uptime

19854

Days in orbit

Revolutions

≈ 12.7

Per day

Orbit

MEO

Medium Earth Orbit

Inclination

65.7

Latest

Satellite identification and parameters

Extended collection of information and parameters for COSMOS 397.

Object identification

Identified? True

Debris? False

Object name: COSMOS 397

International designator: 1971-015A

Object number (NORAD): 4964

Object ID (CCSDS): 4964

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 112.956 minutes

Inclination: 65.7222 deg

SMA: 7740.467 km

Apoapsis: 2154.844 km

Periapsis: 569.821 km

RAAN: 133.8619 deg

Eccentricy: 0.1023855

Argument of periapsis: 15.2317 deg

Mean anomaly: 347.7217 deg

Mean motion: 12.74829171 rev/day

Mean motion (dot): 0.00000129 rev/day2

B* drag term: 0.000098659 1/REarth

Two-line elements (TLE)

Creation date: July 4, 2025, 6:39 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 4, 2025, 6:55 a.m. UTC

TLE line 0: 0 COSMOS 397

TLE line 1: 1 04964U 71015A 25185.28848401 .00000129 00000-0 98659-4 0 9996

TLE line 2: 2 04964 65.7222 133.8619 1023855 15.2317 347.7217 12.74829171623906

Live tracking on map

Real-time ground track for satellite COSMOS 397.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 397.

Target Orbit TCA Probability of collision Miss distance Type
FENGYUN 1C DEB SSO 2025-07-01 20:59:47 0.0002532398 973.0 (m) DEBRIS
CZ-4 DEB SSO 2025-01-10 16:09:30 0.0001956591 492.0 (m) DEBRIS

Associated space launch

The I2P satellites were the first soviet coorbital ASAT system.

COSMOS 397 was lifted into orbit during the mission ‘Tsiklon-2 | I2P 6’, on board a Tsiklon-2 space rocket.

The launch took place on Feb. 25, 1971, 11:11 a.m. from 90/20.

For more information about the launch, click the button.

Launch to space Tsiklon-2 | I2P 6
Tsiklon-2 | I2P 6

Agency: N/A

Status: Launch Successful

Launch date: Feb. 25, 1971, 11:11 a.m. UTC

Rocket: Tsiklon-2

Launch pad: 90/20

Location: Baikonur Cosmodrome, Republic of Kazakhstan

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