Apstar 2R

Also called Telstar 10 or Apstar 4

---

General

Designation	25010 / 97062A
Launch date	16 Oct 1997
Country of origin	China
Mission	Telecommunications
Geostationary orbit	see below
Launch vehicle	Long March 3B #46

Was insured for $220 million

In Aug 1999 Loral Space & Communications Ltd leased (via Loral Asia Pacific Satellite Ltd.) the satellite (27 C-band and 13 Ku-band transponders) through its remaining lifetime. It will replace Orion 3. Contract worth $298.1 million (Loral will pay US$78.4 million on the closing date, US$12.5 million per quarter thereafter for 16 quarters and US$19.6 million on the date the sixteenth quarterly instalment is made.). Under the agreement, Loral will also have the option to lease from APT replacement satellites after the Apstar IIR's useful life has ended.

In June 2009, Telesat agreed to sell its leasehold interest to APT for $69.5 million.

---

Location

Begin	End	Position
L: 16 Oct 1997	Jun 2012	76.5°E
Jun 2012	Oct 2012	76.5°E, inclined

---

End of life

Out of service	Nov 2012
Cause	Sent to the junk orbit

sat-index articles

Technical data

---

Lyngsat transponder loading

---

EIRP coverage (dBW)

C-band
Ku-band

---

Specifications

Prime contractor	Space Systems/Loral
Platform	FS-1300
Mass at launch	3700 kg
Dry mass	1415 kg
Dimension	3.10 x 8.60 x 5.50 m
Solar array
Stabilization	3-axis
DC power
Design lifetime	15 years

---

C-band

Main transponders	28
Backup transponders	8
Power	60 W (TWTA)
Bandwidth	1 transponder of 30 MHz 27 transponders of 36 MHz
Coverage	Asia, Australia and part of Africa
EIRP max	39 dBW
G/T max	-0.4 dB/K
Polarization	linear H/V
Frequencies	Uplink: 5.850 - 6.425 GHz Downlink: 3.625 - 4.200 GHz

Telemetry: 3.627 V & 4.199625 H GHz
Command: 5.8505 H & 6.4245 V GHz

---

Transponder frequency chart (GHz)

Horizontal Uplink	Horizontal Downlink	Transponder	Vertical Downlink	Vertical Uplink	Bandwidth
	3.643	1A		5.868	30
5.885		1B	3.660		36
	3.680	2A		5.905	36
5.925		2B	3.700		36
	3.720	3A		5.945	36
5.985		3B	3.740		36
	3.760	4A		5.985	36
6.005		4B	3.780		36
	3.800	5A		6.025	36
6.045		5B	3.820		36
	3.840	6A		6.065	36
6.085		6B	3.860		36
	3.880	7A		6.105	36
6.125		7B	3.900		36
	3.920	8A		6.145	36
6.125		8B	3.940		36
	3.960	9A		6.185	36
6.205		9B	3.980		36
	4.000	10A		6.225	36
6.245		10B	4.020		36
	4.040	11A		6.265	36
6.285		11B	4.060		36
	4.080	12A		6.305	36
6.325		12B	4.100		36
	4.120	13A		6.345	36
6.365		13B	4.140		36
	4.160	14A		6.385	36
6.405		14B	4.180		36

---

Ku-band

Main transponders	16
Backup transponders	8
Power	110 W (TWTA)
Bandwidth	15 transponders of 54 MHz 1 transponder of 36 MHz
Coverage	China
EIRP max	beam 1: 53 dBW beam 2: 56 dBW
G/T max	+7.4 dB/K
Polarization	linear H/V
Frequencies	Uplink: 14.0 - 14.5 GHz Downlink: 12.25 - 12.75 GHz

Beacons: 12.251 & 12.749 GHz

---

Transponder frequency chart (GHz)

Horizontal Uplink	Horizontal Downlink	Transponder	Vertical Downlink	Vertical Uplink	Beam
	12.272	1A		14.022	beam 1 or 2 (36 MHz)
14.0435		1B	12.2935		beam 2
	12.324	2A		14.074	beam 1
14.1045		2B	12.3545		beam 1
	12.385	3A		14.135	beam 1 or 2
14.1655		3B	12.4155		beam 2
	12.446	4A		14.196	beam 1
14.2265		4B	12.4765		beam 1
	12.507	5A		14.257	beam 1 or 2
14.2875		5B	12.5375		beam 2
	12.568	6A		14.318	beam 1
14.3485		6B	12.5985		beam 1
	12.629	7A		14.379	beam 1 or 2
14.4095		7B	12.6595		beam 2
	12.690	8A		14.440	beam 1
14.4705		8B	12.7205		beam 1

---