Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18427
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 1 DEB.
Object identification
Identified? True
Debris? True
Object name: DELTA 1 DEB
International designator: 1975-004M
Object number (NORAD): 8685
Object ID (CCSDS): 8685
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 99.125 minutes
Inclination: 97.9843 deg
SMA: 7094.935 km
Apoapsis: 749.057 km
Periapsis: 684.544 km
RAAN: 276.3836 deg
Eccentricy: 0.0045464
Argument of periapsis: 287.0391 deg
Mean anomaly: 72.5827 deg
Mean motion: 14.52713958 rev/day
Mean motion (dot): 0.00000326 rev/day2
B* drag term: 0.000089197 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 6:39 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 4, 2025, 4:53 a.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 08685U 75004M 25185.20394374 .00000326 00000-0 89197-4 0 9995
TLE line 2: 2 08685 97.9843 276.3836 0045464 287.0391 72.5827 14.52713958658552
Live tracking on map
Real-time ground track for satellite DELTA 1 DEB.
Associated space launch
Earth observation satellite
DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2910 | Landsat 2’, on board a Delta 2910 space rocket.
The launch took place on Jan. 22, 1975, 5:55 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 2910 | Landsat 2
Agency: N/A
Status: Launch Successful
Launch date: Jan. 22, 1975, 5:55 p.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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