Key statistics
Satellite SSU 1 at a glance.
Uptime
18026
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
63.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for SSU 1.
Object identification
Identified? True
Debris? False
Object name: SSU 1
International designator: 1976-038C
Object number (NORAD): 8835
Object ID (CCSDS): 8835
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.126 minutes
Inclination: 63.3601 deg
SMA: 7331.596 km
Apoapsis: 1256.315 km
Periapsis: 650.606 km
RAAN: 324.8517 deg
Eccentricy: 0.04130811
Argument of periapsis: 176.234 deg
Mean anomaly: 184.1987 deg
Mean motion: 13.82945311 rev/day
Mean motion (dot): 0.00000414 rev/day2
B* drag term: 0.00024778195 1/REarth
Two-line elements (TLE)
Creation date: Sept. 6, 2025, 2:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 5, 2025, 10:12 p.m. UTC
TLE line 0: 0 SSU 1
TLE line 1: 1 08835U 76038C 25248.92549444 .00000414 00000-0 24778-3 0 9990
TLE line 2: 2 08835 63.3601 324.8517 0413081 176.2340 184.1987 13.82945311319508
Live tracking on map
Real-time ground track for satellite SSU 1.
In-orbit conjunctions
A list of the most updated potential collisions computed for object SSU 1.
Associated space launch
Parcae 1A, B and C were passive ELINT satellites. MSD 1 was a dispenser of triplets of ocean surveillance satellites.
SSU 1 was lifted into orbit during the mission ‘Atlas F/MSD | Parcae 1A,B,C & MSD 1’, on board a Atlas F/MSD space rocket.
The launch took place on April 30, 1976, 7:12 p.m. from Space Launch Complex 3W.
For more information about the launch, click the button.
Atlas F/MSD | Parcae 1A,B,C & MSD 1
Agency: N/A
Status: Launch Successful
Launch date: April 30, 1976, 7:12 p.m. UTC
Rocket: Atlas F/MSD
Launch pad: Space Launch Complex 3W
Location: Vandenberg SFB, CA, USA
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