DSCS 3-F14

USA

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 date	29 Aug 2003 - 23:13 UT
Launch site	CC, SLC-37B
Launch vehicle	Delta 4M/IABS (D4-3 #301)
Mission	Military: 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.

Specifications:

Prime contractor	Lockheed Martin Missiles and Space
Platform
Operator	US Air Force
Mass at launch	1156 kg
Dry mass	884 kg
Dimension
Solar array
Stabilization	3-axis
DC power	BOL: 1700 W EOL: 1230 W
Design lifetime	10 yrs - stil active

Location:

Date	Position	Remarks
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.

Payload

- 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