Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
17401
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.8
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: 1978-026M
Object number (NORAD): 12172
Object ID (CCSDS): 12172
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 101.002 minutes
Inclination: 98.8049 deg
SMA: 7184.229 km
Apoapsis: 847.907 km
Periapsis: 764.281 km
RAAN: 323.3252 deg
Eccentricy: 0.00582015
Argument of periapsis: 214.271 deg
Mean anomaly: 321.4553 deg
Mean motion: 14.25714337 rev/day
Mean motion (dot): 0.00000456 rev/day2
B* drag term: 0.00020758313 1/REarth
Two-line elements (TLE)
Creation date: Oct. 25, 2025, 3:11 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 24, 2025, 8:23 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 12172U 78026M 25297.84930880 .00000456 00000-0 20758-3 0 9991
TLE line 2: 2 12172 98.8049 323.3252 0058201 214.2710 321.4553 14.25714337318435
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 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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