Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18447
Days in orbit
Revolutions
≈ 12.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.6
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: 1975-052AB
Object number (NORAD): 21290
Object ID (CCSDS): 21290
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 115.818 minutes
Inclination: 99.5526 deg
SMA: 7870.653 km
Apoapsis: 1894.975 km
Periapsis: 1090.061 km
RAAN: 280.7681 deg
Eccentricy: 0.05113387
Argument of periapsis: 196.9425 deg
Mean anomaly: 194.7379 deg
Mean motion: 12.43330544 rev/day
Mean motion (dot): 0.00000134 rev/day2
B* drag term: 0.00074997877 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 5:50 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21290U 75052AB 25345.74312372 .00000134 00000-0 74998-3 0 9999
TLE line 2: 2 21290 99.5526 280.7681 0511339 196.9425 194.7379 12.43330544569540
Live tracking on map
Real-time ground track for satellite DELTA 1 DEB.
Associated space launch
Experimental meteorological satellite
DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2910 | Nimbus 6’, on board a Delta 2910 space rocket.
The launch took place on June 12, 1975, 8:12 a.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 2910 | Nimbus 6
Agency: N/A
Status: Launch Successful
Launch date: June 12, 1975, 8:12 a.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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