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 siteKourou, 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
OperatorKorea Telecom --> Asia Broadcast Satellite (since 2010)
PlatformSunnyvale A2100A
Mass at launch2790 kg
Dry mass1332 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:


Ku-band DBS

Main transponders
Backup transponders
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
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
Backup transponders
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