Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18453
Days in orbit
Revolutions
≈ 12.8
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.7
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: 1975-052DZ
Object number (NORAD): 21441
Object ID (CCSDS): 21441
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 112.129 minutes
Inclination: 99.69 deg
SMA: 7702.648 km
Apoapsis: 1558.346 km
Periapsis: 1090.68 km
RAAN: 129.6998 deg
Eccentricy: 0.03035746
Argument of periapsis: 187.8114 deg
Mean anomaly: 326.1886 deg
Mean motion: 12.84229641 rev/day
Mean motion (dot): 0.00000006 rev/day2
B* drag term: 0.00014355849 1/REarth
Two-line elements (TLE)
Creation date: Dec. 18, 2025, 2:19 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 17, 2025, 9:16 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21441U 75052DZ 25351.88658200 .00000006 00000-0 14356-3 0 9992
TLE line 2: 2 21441 99.6900 129.6998 0303575 187.8114 326.1886 12.84229641622300
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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