Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
17394
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.3
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: 1978-026EK
Object number (NORAD): 12291
Object ID (CCSDS): 12291
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 100.41 minutes
Inclination: 99.283 deg
SMA: 7156.122 km
Apoapsis: 808.377 km
Periapsis: 747.596 km
RAAN: 105.7276 deg
Eccentricy: 0.00424677
Argument of periapsis: 39.2297 deg
Mean anomaly: 74.7385 deg
Mean motion: 14.34122315 rev/day
Mean motion (dot): 0.0000446 rev/day2
B* drag term: 0.0015944096 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 18, 2025, 12:20 a.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 12291U 78026EK 25291.01446054 .00004460 00000-0 15944-2 0 9990
TLE line 2: 2 12291 99.2830 105.7276 0042468 39.2297 74.7385 14.34122315298955
Live tracking on map
Real-time ground track for satellite DELTA 1 DEB.
In-orbit conjunctions
A list of the most updated potential collisions computed for object DELTA 1 DEB.
Associated space launch
Earth observation satellite
DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2910 | Landsat 3’, on board a Delta 2910 space rocket.
The launch took place on March 5, 1978, 5:54 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 2910 | Landsat 3
Agency: N/A
Status: Launch Successful
Launch date: March 5, 1978, 5:54 p.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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