Key statistics
Satellite SSU 1 DEB at a glance.
Uptime
18294
Days in orbit
Revolutions
≈ 12.6
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
95.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for SSU 1 DEB.
Object identification
Identified? True
Debris? True
Object name: SSU 1 DEB
International designator: 1975-051E
Object number (NORAD): 7939
Object ID (CCSDS): 7939
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 113.869 minutes
Inclination: 95.1834 deg
SMA: 7782.1 km
Apoapsis: 1422.912 km
Periapsis: 1385.018 km
RAAN: 144.6646 deg
Eccentricy: 0.0024347
Argument of periapsis: 238.0245 deg
Mean anomaly: 177.9822 deg
Mean motion: 12.64612639 rev/day
Mean motion (dot): 0.00000035 rev/day2
B* drag term: 0.00024975 1/REarth
Two-line elements (TLE)
Creation date: July 9, 2025, 2:22 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 8, 2025, 8:27 p.m. UTC
TLE line 0: 0 SSU 1 DEB
TLE line 1: 1 07939U 75051E 25189.85231078 .00000035 00000-0 24975-3 0 9993
TLE line 2: 2 07939 95.1834 144.6646 0024347 238.0245 177.9822 12.64612639310892
Live tracking on map
Real-time ground track for satellite SSU 1 DEB.
Associated space launch
Large reconnaissance satellite equipped with four return capsules.
SSU 1 DEB was lifted into orbit during the mission ‘Titan IIID | KH-9 10’, on board a Titan IIID space rocket.
The launch took place on June 8, 1975, 6:30 p.m. from Space Launch Complex 4E.
For more information about the launch, click the button.
Titan IIID | KH-9 10
Agency: N/A
Status: Launch Successful
Launch date: June 8, 1975, 6:30 p.m. UTC
Rocket: Titan IIID
Launch pad: Space Launch Complex 4E
Location: Vandenberg SFB, CA, USA
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