Koreasat 3 --> ABS 7

South Korea

International Sat. n°:

S. Korea satellite n°: 6

Also called Mugunghwa 3

Launch data:

Designation:	25894 / 99046A
Launch date	04 Sep 1999 - 22:34 UT
Launch site	Kourou, ELA2
Launch vehicle:	Ariane-42P (V120)
Mission:	Communications:
Geostationary orbit on:
Perigee / Apogee	km
Inclination	°
Period	min

Delayed because of potential solar panels problems.

Spacecraft data:

Prime contractor	Lockheed Martin
Operator	Korea Telecom --> Asia Broadcast Satellite (since 2010)
Platform	Sunnyvale A2100A
Mass at launch	2790 kg
Dry mass	1332 kg
Dimension
Solar array	2 deployable solar arrays
Stabilization
Equipment	24 Ku-Band, 6 Ku-Band, 3 Ka-Band transponders
DC power	4700 W
Design lifetime	15 years

Antennas provided by Spar Aerospace

Location

Begin	End	Position
L: 4 Sep 1999	Dec 1999	112.5°E
28 Dec 1999		116°E

Mission details:

Koreasat 3 was launched on Sep 4 on an Ariane 42P rocket. The H-10-3 third stage placed Koreasat 3 in a 214 x 35756 km x 7.0 deg transfer orbit. Koreasat 3 is a Lockheed Martin/Sunnyvale A2100 class comsat with both Ka and Ku band transponders.
In May 2010, the satellite was sold to Asia Broadcast Satellite and renamed ABS 7.

Ku-band DBS

Main transponders	6
Backup transponders	3
Power	120 W
Bandwidth	27 MHz
Coverage	South Korea
EIRP max	59.4 dBW
G/T max	14.0 dB/K
Polarization	LHCP (up and down)
Beam coverage	0.82° x 0.67° uplink; 1.06° x 0.86° downlink

Ku-band FSS

Main transponders	group-1 12 + group-2 12
Backup transponders	8
Power	45 W
Bandwidth	36 MHz
Coverage	G1:South Korea G2: South Korea or South-East Asia (steerable)
EIRP max	G1: 50.5 dBW G2 South Korea: 55.1 dBW G2 South-East Asia: 50.2 dBW
G/T max	G1: 13.6 dB/K G2 South Korea: 13.7 dB/K G2 South-East Asia: 8.0 dB/K
Polarization	G1: H uplink, V downlink G2: V uplink, H downlink
Beam Coverage	G1: 0.74° x 0.74° uplink; 0.86° x 0.86° downlink G2 South-East Asia: 3.0° circular

Ka-band

Main transponders	3
Backup transponders	2
Power	70 W
Bandwidth	200 MHz
Coverage	Korean peninsula
EIRP max	55.0 dBW
G/T max	9.4 dB/K
Polarization	RHCP uplink; LHCP downlink
Beam coverage	1.2° x 1.0°

Ref: #7(JR407), #14 - update: 09.06.12