DSCS 3-F14


Spacecraft n:

USA satellite n:

Also called USA-170 (code B6)
Orig PL Name: DSCS III B-6 (Defense Satellite Communications System)

Launch data:

Designation:27875 / 03040A
Launch date29 Aug 2003 - 23:13 UT
Launch site CC, SLC-37B
Launch vehicle  Delta 4M/IABS (D4-3 #301)
MissionMilitary: Communications
Geostationary orbit on:
Perigee / Apogee 35760 x 35814 km
Eccentricity 6.40E-04
Inclination 0.05 deg
Period 1436.1 min

Last DSCS-3 satellite.


Prime contractorLockheed Martin Missiles and Space
Operator US Air Force
Mass at launch 1156 kg
Dry mass 884 kg
Solar array  
Stabilization 3-axis
DC power BOL: 1700 W
EOL: 1230 W
Design lifetime10 yrs - stil active


 April 2010  52.51° W 

Other specifications might be similar to these of the earlier satellites
Super High Frequency (SHF) for U.S. government and military; sophisticated survivability enhancement; worldwide, longhaul coverage; X-band.


- Six independent Super High Frequency (SHF) transponders and one special purpose single channel transponder operating on both SHF and Ultra High Frequency
- Three receive antennas (two Earth coverage horns, one steerable 61-beam nulling lens)
- Five transmit antennas (two Earth coverage horns, two steerable19-beam wave guide lens, one high gain parabolic gimbaled dish)

Ref: #7, #12, #84a, #226 - update: 19.05.10