RIGIDSPHERE 2 (LCS 4)

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite RIGIDSPHERE 2 (LCS 4) at a glance.

Uptime

19852

Days in orbit

Revolutions

≈ 14.4

Per day

Orbit

LEO

Low Earth Orbit

Inclination

87.6

Latest

Satellite identification and parameters

Extended collection of information and parameters for RIGIDSPHERE 2 (LCS 4).

Object identification

Identified? True

Debris? False

Object name: RIGIDSPHERE 2 (LCS 4)

International designator: 1971-067E

Object number (NORAD): 5398

Object ID (CCSDS): 5398

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 100.17 minutes

Inclination: 87.6214 deg

SMA: 7144.703 km

Apoapsis: 810.833 km

Periapsis: 722.303 km

RAAN: 30.6863 deg

Eccentricy: 0.0061955

Argument of periapsis: 131.7667 deg

Mean anomaly: 228.8852 deg

Mean motion: 14.37561675 rev/day

Mean motion (dot): 0.00001115 rev/day²

B* drag term: 0.00035782359 1/R_Earth

Two-line elements (TLE)

Creation date: Dec. 12, 2025, 10:14 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 12, 2025, 6 a.m. UTC

TLE line 0: 0 RIGIDSPHERE 2 (LCS 4)

TLE line 1: 1 05398U 71067E 25346.25051505 .00001115 00000-0 35782-3 0 9995

TLE line 2: 2 05398 87.6214 30.6863 0061955 131.7667 228.8852 14.37561675847029

Live tracking on map

Real-time ground track for satellite RIGIDSPHERE 2 (LCS 4).

In-orbit conjunctions

A list of the most updated potential collisions computed for object RIGIDSPHERE 2 (LCS 4).

Target	Orbit	TCA	Probability of collision	Miss distance	Type
FENGYUN 1C DEB	SSO	2025-04-28 07:15:43	0.0002351456	518.0 (m)	DEBRIS
COSMOS 1275 DEB	LEO	2025-04-20 01:22:01	0.0001113318	199.0 (m)	DEBRIS
RUBIN 3/SL-8	SSO	2025-01-31 00:15:14	0.0001085587	929.0 (m)	PAYLOAD
CZ-6A DEB	LEO	2025-01-01 19:53:27	0.0002982025	359.0 (m)	DEBRIS
CZ-6A DEB	LEO	2024-11-07 20:03:34	0.001841277	194.0 (m)	DEBRIS

Associated space launch

High-density satellite designed to obtain atmospheric density data at low altitudes.

RIGIDSPHERE 2 (LCS 4) was lifted into orbit during the mission ‘Atlas F | LOADS 2’, on board a Atlas F space rocket.

The launch took place on Aug. 7, 1971, 12:11 a.m. from 576A2.

For more information about the launch, click the button.

Atlas F | LOADS 2

Agency: N/A

Status: Launch Successful

Launch date: Aug. 7, 1971, 12:11 a.m. UTC

Rocket: Atlas F

Launch pad: 576A2

Location: Vandenberg SFB, CA, USA

...

Go to the launch

Latest news about this satellite

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