Key statistics
Satellite DELTA 1 R/B at a glance.
Uptime
19455
Days in orbit
Revolutions
≈ 14.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 1 R/B.
Object identification
Identified? True
Debris? False
Object name: DELTA 1 R/B
International designator: 1972-058B
Object number (NORAD): 6127
Object ID (CCSDS): 6127
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 96.909 minutes
Inclination: 98.4921 deg
SMA: 6988.795 km
Apoapsis: 670.616 km
Periapsis: 550.704 km
RAAN: 145.42 deg
Eccentricy: 0.00857883
Argument of periapsis: 321.6851 deg
Mean anomaly: 37.8287 deg
Mean motion: 14.85933278 rev/day
Mean motion (dot): 0.00004002 rev/day2
B* drag term: 0.00043647073 1/REarth
Two-line elements (TLE)
Creation date: Oct. 28, 2025, 2:18 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 27, 2025, 9:55 p.m. UTC
TLE line 0: 0 DELTA 1 R/B
TLE line 1: 1 06127U 72058B 25300.91374829 .00004002 00000-0 43647-3 0 9994
TLE line 2: 2 06127 98.4921 145.4200 0085788 321.6851 37.8287 14.85933278665270
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B.
Associated space launch
Earth observation satellite
DELTA 1 R/B was lifted into orbit during the mission ‘Delta 0900 | Landsat 1’, on board a Delta 0900 space rocket.
The launch took place on July 23, 1972, 6:06 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 0900 | Landsat 1
Agency: N/A
Status: Launch Successful
Launch date: July 23, 1972, 6:06 p.m. UTC
Rocket: Delta 0900
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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