COSMOS 858

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite COSMOS 858 at a glance.

Uptime

17751

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 858.

Object identification

Identified? True

Debris? False

Object name: COSMOS 858

International designator: 1976-098A

Object number (NORAD): 9443

Object ID (CCSDS): 9443

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.351 minutes

Inclination: 74.0492 deg

SMA: 7153.325 km

Apoapsis: 784.566 km

Periapsis: 765.815 km

RAAN: 184.1798 deg

Eccentricy: 0.0013106

Argument of periapsis: 39.7571 deg

Mean anomaly: 320.4539 deg

Mean motion: 14.34963273 rev/day

Mean motion (dot): 0.00000179 rev/day²

B* drag term: 0.000072002 1/R_Earth

Two-line elements (TLE)

Creation date: May 6, 2025, 3:54 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: May 5, 2025, 8:34 p.m. UTC

TLE line 0: 0 COSMOS 858

TLE line 1: 1 09443U 76098A 25125.85709611 .00000179 00000-0 72002-4 0 9994

TLE line 2: 2 09443 74.0492 184.1798 0013106 39.7571 320.4539 14.34963273540321

Live tracking on map

Real-time ground track for satellite COSMOS 858.

In-orbit conjunctions

A list of the most updated potential collisions computed for object COSMOS 858.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
FENGYUN 1C DEB	SSO	2025-02-19 18:50:54	0.0002120133	373.0 (m)	DEBRIS
CZ-6A DEB	LEO	2024-11-25 01:13:39	0.0005983858	389.0 (m)	DEBRIS
DMSP 5D-3 F16 DEB	SSO	2024-11-07 02:28:35	0.0001532949	642.0 (m)	DEBRIS
COSMOS 1275 DEB	LEO	2024-11-05 03:57:05	0.0002004587	273.0 (m)	DEBRIS
COSMOS 1275 DEB	LEO	2024-11-01 11:42:53	0.0002124235	435.0 (m)	DEBRIS

Associated space launch

Military communications satellite

COSMOS 858 was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 14’, on board a Kosmos-3M space rocket.

The launch took place on Sept. 29, 1976, 7:04 a.m. from 132/2.

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 14

Agency: N/A

Status: Launch Successful

Launch date: Sept. 29, 1976, 7:04 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/2

Location: Plesetsk Cosmodrome, Russian Federation

...

Go to the launch

Latest news about this satellite

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