Key statistics
Satellite DELTA 1 R/B at a glance.
Uptime
18292
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
115.0
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: 1975-027B
Object number (NORAD): 7735
Object ID (CCSDS): 7735
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 101.022 minutes
Inclination: 114.9749 deg
SMA: 7185.186 km
Apoapsis: 828.464 km
Periapsis: 785.639 km
RAAN: 246.8116 deg
Eccentricy: 0.0029801
Argument of periapsis: 16.4402 deg
Mean anomaly: 343.764 deg
Mean motion: 14.2542935 rev/day
Mean motion (dot): 0.00000078 rev/day2
B* drag term: 0.00010801 1/REarth
Two-line elements (TLE)
Creation date: May 7, 2025, 3:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 6, 2025, 8:17 p.m. UTC
TLE line 0: 0 DELTA 1 R/B
TLE line 1: 1 07735U 75027B 25126.84529438 .00000078 00000-0 10801-3 0 9990
TLE line 2: 2 07735 114.9749 246.8116 0029801 16.4402 343.7640 14.25429350600552
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B.
Associated space launch
Geodetic research satellite
DELTA 1 R/B was lifted into orbit during the mission ‘Delta 1410 | Geos 3’, on board a Delta 1410 space rocket.
The launch took place on April 9, 1975, 11:58 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 1410 | Geos 3
Agency: N/A
Status: Launch Successful
Launch date: April 9, 1975, 11:58 p.m. UTC
Rocket: Delta 1410
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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