Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18352
Days in orbit
Revolutions
≈ 13.0
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: 1975-052FT
Object number (NORAD): 21498
Object ID (CCSDS): 21498
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 111.186 minutes
Inclination: 99.6906 deg
SMA: 7659.38 km
Apoapsis: 1484.231 km
Periapsis: 1078.259 km
RAAN: 193.1234 deg
Eccentricy: 0.02650158
Argument of periapsis: 342.0802 deg
Mean anomaly: 173.0604 deg
Mean motion: 12.95126944 rev/day
Mean motion (dot): 0.00000825 rev/day2
B* drag term: 0.002620515 1/REarth
Two-line elements (TLE)
Creation date: Sept. 7, 2025, 3:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 6, 2025, 7:59 a.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21498U 75052FT 25249.33326809 .00000825 00000-0 26205-2 0 9991
TLE line 2: 2 21498 99.6906 193.1234 0265016 342.0802 173.0604 12.95126944619399
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
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.