Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
17397
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: 1978-026HV
Object number (NORAD): 26861
Object ID (CCSDS): 26861
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 100.73 minutes
Inclination: 98.7928 deg
SMA: 7171.335 km
Apoapsis: 864.971 km
Periapsis: 721.43 km
RAAN: 279.4858 deg
Eccentricy: 0.01000802
Argument of periapsis: 332.538 deg
Mean anomaly: 27.0533 deg
Mean motion: 14.29561062 rev/day
Mean motion (dot): 0.00000501 rev/day2
B* drag term: 0.0002026109 1/REarth
Two-line elements (TLE)
Creation date: Oct. 19, 2025, 2:20 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 18, 2025, 4:49 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 26861U 78026HV 25291.70112430 .00000501 00000-0 20261-3 0 9993
TLE line 2: 2 26861 98.7928 279.4858 0100080 332.5380 27.0533 14.29561062156181
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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