Key statistics
Satellite DELTA 1 R/B at a glance.
Uptime
18407
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: 101.02 minutes
Inclination: 114.9739 deg
SMA: 7185.059 km
Apoapsis: 836.909 km
Periapsis: 776.939 km
RAAN: 208.4395 deg
Eccentricy: 0.00417319
Argument of periapsis: 336.1621 deg
Mean anomaly: 23.7528 deg
Mean motion: 14.25467261 rev/day
Mean motion (dot): 0.00000155 rev/day2
B* drag term: 0.00013942565 1/REarth
Two-line elements (TLE)
Creation date: Aug. 31, 2025, 2:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 30, 2025, 9:17 p.m. UTC
TLE line 0: 0 DELTA 1 R/B
TLE line 1: 1 07735U 75027B 25242.88708720 .00000155 00000-0 13943-3 0 9992
TLE line 2: 2 07735 114.9739 208.4395 0041732 336.1621 23.7528 14.25467261617096
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
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
