Key statistics
Satellite DELTA 4 R/B at a glance.
Uptime
8314
Days in orbit
Revolutions
≈ 4.5
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
25.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 4 R/B.
Object identification
Identified? True
Debris? False
Object name: DELTA 4 R/B
International designator: 2003-008B
Object number (NORAD): 27692
Object ID (CCSDS): 27692
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 317.651 minutes
Inclination: 25.1913 deg
SMA: 15421.502 km
Apoapsis: 17823.975 km
Periapsis: 262.759 km
RAAN: 174.0571 deg
Eccentricy: 0.56937435
Argument of periapsis: 190.4301 deg
Mean anomaly: 149.263 deg
Mean motion: 4.53328208 rev/day
Mean motion (dot): 0.00012653 rev/day2
B* drag term: 0.0014935869 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 4:09 p.m. UTC
TLE line 0: 0 DELTA 4 R/B
TLE line 1: 1 27692U 03008B 25345.67292798 .00012653 00000-0 14936-2 0 9998
TLE line 2: 2 27692 25.1913 174.0571 5693744 190.4301 149.2630 4.53328208 92832
Live tracking on map
Real-time ground track for satellite DELTA 4 R/B.
In-orbit conjunctions
There are no conjunctions computed for DELTA 4 R/B, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The U.S. Air Force Space Command operates 10 Phase III DSCS satellites providing defense officials and battlefield commanders secure voice and high rate data communications. The DSCS III system also transmits space operations and early warning data to various systems and users.
DELTA 4 R/B was lifted into orbit during the mission ‘Delta IV M | DSCS III A-3’, on board a Delta IV M space rocket.
The launch took place on March 11, 2003, 12:59 a.m. from Space Launch Complex 37B.
For more information about the launch, click the button.
Delta IV M | DSCS III A-3
Agency: N/A
Status: Launch Successful
Launch date: March 11, 2003, 12:59 a.m. UTC
Rocket: Delta IV M
Launch pad: Space Launch Complex 37B
Location: Cape Canaveral SFS, FL, USA
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Latest news about this satellite
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