SS 3

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite SS 3 at a glance.

Uptime

17491

Days in orbit

Revolutions

≈ 14.0

Per day

Orbit

LEO

Low Earth Orbit

Inclination

63.3

Latest

Satellite identification and parameters

Extended collection of information and parameters for SS 3.

Object identification

Identified? True

Debris? False

Object name: SS 3

International designator: 1977-112F

Object number (NORAD): 10594

Object ID (CCSDS): 10594

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 102.68 minutes

Inclination: 63.3267 deg

SMA: 7263.588 km

Apoapsis: 1256.37 km

Periapsis: 514.535 km

RAAN: 119.0463 deg

Eccentricy: 0.05106536

Argument of periapsis: 159.9067 deg

Mean anomaly: 202.2924 deg

Mean motion: 14.02413201 rev/day

Mean motion (dot): 0.00002567 rev/day2

B* drag term: 0.00054579688 1/REarth

Two-line elements (TLE)

Creation date: Oct. 27, 2025, 2:46 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 26, 2025, 8:35 p.m. UTC

TLE line 0: 0 SS 3

TLE line 1: 1 10594U 77112F 25299.85818630 .00002567 00000-0 54580-3 0 9998

TLE line 2: 2 10594 63.3267 119.0463 0510654 159.9067 202.2924 14.02413201334560

Live tracking on map

Real-time ground track for satellite SS 3.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SS 3.

Target Orbit TCA Probability of collision Miss distance Type
NOAA 16 DEB SSO 2025-03-12 18:39:11 0.0001585158 551.0 (m) DEBRIS

Associated space launch

The Parcae satellites were passive ELINT satellites. MSD satellites were dispensers of triplets of ocean surveillance satellites.

SS 3 was lifted into orbit during the mission ‘Atlas F/MSD | Parcae 2A,B,C & MSD 2’, on board a Atlas F/MSD space rocket.

The launch took place on Dec. 8, 1977, 5:45 p.m. from Space Launch Complex 3W.

For more information about the launch, click the button.

Launch to space Atlas F/MSD | Parcae 2A,B,C & MSD 2
Atlas F/MSD | Parcae 2A,B,C & MSD 2

Agency: N/A

Status: Launch Successful

Launch date: Dec. 8, 1977, 5:45 p.m. UTC

Rocket: Atlas F/MSD

Launch pad: Space Launch Complex 3W

Location: Vandenberg SFB, CA, USA

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