DBS 4S

Later renamed Directv 4, also called DTV 4S

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General

Designation	26985 / 01052A
Launch date	27 Nov 2001
Country of origin	United States
Mission	Direct TV
Geostationary orbit	101.2°W
Launch vehicle	Ariane V146

The satellite was declared fully functional by Boeing on 21 Dec 2001. Started operating on 27 Dec 2001.

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Location

Begin	End	Position
L:	Sep 2019	101.2°W

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End of life

Out of service	Oct 2019
Cause	Sent to junk orbit

sat-index articles

Technical data

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Lyngsat transponder loading

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Specifications

Prime contractor	Hughes
Platform	HS-601HP
Mass at launch	4260 kg
Dry mass	2100 kg
Dimension	2.7 x 3.6 x 4.0 m
Solar array	triple junction gallium arsenide, 26.2 m span
Stabilization	3-axis
DC power	EOL: 8.1 kW
Design lifetime	15 years

XIPS propulsion

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Ku-band National (12.2-12.7 GHz)

Main transponders	8
Backup transponders
Power	2 x 100 W 6 x low power
Bandwidth
Coverage	Conus, Alaska, Hawaii
EIRP max	55 dBW
G/T max
Polarization

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Ku-band Spots (12.2-12.7 GHz)

Main transponders	38
Backup transponders
Power	from 30 to 88 W
Bandwidth
Coverage	Multiple spot beams over Conus, Alaska and Hawaii
EIRP max	55 dBW
G/T max
Polarization	LHCP & RHCP

Ku-band DBS US frequency chart

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