Koreasat 3

Also called Mugunghwa Sahm Ho, later ABS 7

---

General

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.

---

Location

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
Ka-band

---

EIRP coverage as Koreasat 3 (dBW)

Ku-band Telecom
Ku-band DBS

---

Specifications

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

Antennas provided by Spar Aerospace

---

Ku-band DBS

Main transponders	6
Backup transponders	3
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	8
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

---

Ka-band

Main transponders	3
Backup transponders	2
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

---