Key statistics
Satellite DELTA 4 R/B at a glance.
Uptime
8218
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: 320.084 minutes
Inclination: 25.2131 deg
SMA: 15500.154 km
Apoapsis: 18002.189 km
Periapsis: 241.849 km
RAAN: 259.8122 deg
Eccentricy: 0.57290852
Argument of periapsis: 44.092 deg
Mean anomaly: 349.4973 deg
Mean motion: 4.49882146 rev/day
Mean motion (dot): 0.00023545 rev/day2
B* drag term: 0.0018365588 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 9:28 a.m. UTC
TLE line 0: 0 DELTA 4 R/B
TLE line 1: 1 27692U 03008B 25250.39494925 .00023545 00000-0 18366-2 0 9991
TLE line 2: 2 27692 25.2131 259.8122 5729085 44.0920 349.4973 4.49882146 88524
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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