Key statistics
Satellite DELTA 1 R/B at a glance.
Uptime
18352
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: 101.021 minutes
Inclination: 114.9786 deg
SMA: 7185.121 km
Apoapsis: 833.016 km
Periapsis: 780.956 km
RAAN: 55.0239 deg
Eccentricy: 0.0036228
Argument of periapsis: 353.5125 deg
Mean anomaly: 6.5485 deg
Mean motion: 14.25448904 rev/day
Mean motion (dot): -0.00000066 rev/day2
B* drag term: 0.000047414 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 6:05 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 12:46 p.m. UTC
TLE line 0: 0 DELTA 1 R/B
TLE line 1: 1 07735U 75027B 25187.53252965 -.00000066 00000-0 47414-4 0 9990
TLE line 2: 2 07735 114.9786 55.0239 0036228 353.5125 6.5485 14.25448904609205
Live tracking on map
Real-time ground track for satellite DELTA 1 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object 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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