Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18427
Days in orbit
Revolutions
≈ 14.2
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
97.8
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: 1975-004HS
Object number (NORAD): 27726
Object ID (CCSDS): 27726
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 101.07 minutes
Inclination: 97.7688 deg
SMA: 7187.465 km
Apoapsis: 887.283 km
Periapsis: 731.377 km
RAAN: 202.9502 deg
Eccentricy: 0.0108457
Argument of periapsis: 93.0803 deg
Mean anomaly: 268.2795 deg
Mean motion: 14.24751552 rev/day
Mean motion (dot): 0.00000128 rev/day2
B* drag term: 0.000065887 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 6:39 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 4, 2025, 12:16 a.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 27726U 75004HS 25185.01163357 .00000128 00000-0 65887-4 0 9996
TLE line 2: 2 27726 97.7688 202.9502 0108457 93.0803 268.2795 14.24751552285975
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 2’, on board a Delta 2910 space rocket.
The launch took place on Jan. 22, 1975, 5:55 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.

Delta 2910 | Landsat 2
Agency: N/A
Status: Launch Successful
Launch date: Jan. 22, 1975, 5:55 p.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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