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Koreasat 3

Also called Mugunghwa Sahm Ho, later ABS 7


Designation 25894 / 99046A
Launch date 4 Sep 1999
Country of origin South Korea
Mission Telecommunications
Geostationary orbit see below
Launch vehicle Ariane V120

The satellite total cost: $219 million. Delayed because of potential solar panels problems.

In June 2010, the satellite was sold to Asia Broadcast Satellite and renamed ABS 7. Has sufficient fuel for 6-7 years of non-inclined operations.

The sale is disputed by the Korean government.


Begin End Position
L: 4 Sep 1999 Dec 1999 112.5°E
28 Dec 1999 Jul 2019 116°E
Jul 2019 Sep 2020 116°E, inclined
Mar 2021 Feb 2022 33.4°E, inclined

End of life

Out of service Feb 2022

External resources

sat-index articles

Technical data

Lyngsat transponder loading

EIRP coverage as ABS 7 (dBW)

Ku-band BSS (Pakistan)
Ku-band FSS
Ku-band steerable

EIRP coverage as Koreasat 3 (dBW)

Ku-band Telecom
Ku-band DBS


Prime contractor Lockheed Martin
Platform A2100
Mass at launch 2790 kg
Dry mass 1332 kg
Solar array  
Stabilization 3-axis
DC power 4700 W
Design lifetime 15 years

Antennas provided by Spar Aerospace

Ku-band DBS

Main transponders
Backup transponders
Power 120 W
Bandwidth 27 MHz
Coverage Pakistan
was: 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
Frequencies uplink: 14.5-14.8 GHz
downlink: 11.7-12.2 GHz

Ku-band FSS

Main transponders group-1 12 + group-2 12
Backup transponders
Power 45 W
Bandwidth 36 MHz
Coverage G1: Afghanistan
G2: Middle East
was: G1: South Korea
was: 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
Frequencies uplink: 14.0-14.5 GHz
downlink: 12.25-12.75 GHz


Main transponders
Backup transponders
Power 82 W
Bandwidth 200 MHz
Coverage Afghanistan & Pakistan
was: 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°
Frequencies uplink: 30.085-30.885 GHz
downlink: 20.335-21.155 GHz

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