ENGLISH

Contract worth $95 million. Ordered as Intelsat KTV. Transfered to NSS on 30 Nov 1998. The satellite was so delayed that NSS did not want it any more. It was sold to Intelsat in early 2001 and renamed Intelsat APR 3. It should have served at 85°E (originally it was planned for 95°E). Sino Satellite Communications would use 6 tps and would be allowed to use 2 C-band tps on the to-be-launched Intelsat satellite at 178°E. In Sep 2001, another problem occured: Intelsat cancelled the acquisition of the satellite because the export licence to have it launched in China (Long March 3B) was not granted by the US government.

In 2002, the satellite was sold to become Hellas Sat 2.

Astra TechCom services will TT&C services for the first year after launch. They will also install 2 ground control stations in Greece and Cyprus. Primary control station in Athens.

SPECIFICATIONS SATELLITE:

 

Prime contractor	Astrium
Platform	Eurostar-2000+
Mass at launch	3250 kg
Mass in orbit	2017 kg
Dry mass	1462 kg
Dimension	3.19 x 3.48 x 7.89 m
Solar array	32.32 m span
Stabilization	3-axis
DC power	EOL: 7600 W
Design lifetime	12 years

SPECIFICATIONS KU BAND TRANSPONDERS:

 

Main transponders	30
Backup transponders
Power	Fixed & Steerable beam 1: 101 W (TWTA) Fixed & Steerable beam 2: 105 W (TWTA)
Bandwidth	36 MHz
Coverage & EIRP max	F1: Europe: 53 dBW F2: Europe: 53 dBW S1: Southern Africa: 51 dBW S2: Middle East: 51 dBW
G/T max	Fixed beam 1: +4.4 - -1 dB/K Fixed beam 2: +4.8 - -3 dB/K Steerable beam 1: +8.7- 0 dB/K Steerable beam 2: +7.2 - -1 dB/K
SFD	-91 to -73 dBW/m²
Polarization	linear H/V
Frequencies	Uplink: 13.75-14 GHz / 14-14.25 GHz / 14.25-14.5 GHz Downlink: 12.5-12.75 GHz / 10.95-11.2 GHz / 11.45-11.7 GHz

HELLAS 2 FREQUENCY PLAN:

Click on the picture to enlarge it

 

Horizontal Downlink	Horizontal Uplink	Slot	Vertical Uplink	Vertical Downlink	Uplink/Downlink beams
12.524		19	13.768		F1/F1
	13.768	13		12.524	F1/F1
12.565		20	13.809		F1/F1
	13.809	14		12.565	F1/F1
12.606		21	13.850		F1/F1
	13.850	15		12.606	F1/F1
12.647		22	13.891		F1/F1
	13.891	16		12.647	F1/F1
12.688		23	13.932		F1/F1
	13.932	17		12.688	F1/F1
12.729		24	13.973		F1/F1
	13.973	18		12.729	F1/F1
12.565	13.809	14			F1/S1
12.606	13.850	15			F1/S1
12.565	14.065	38			S2/S1
12.606	14.106	39			S2/S1
12.524		43	14.024		S2/F1
	14.024	37		12.524	S2/F1
12.565		44	14.065		S2/F1
	14.065	38		12.565	S2/F1
12.606		45	14.106		S2/F1
	14.106	39		12.606	S2/F1
12.647		46	14.147		S2/F1
	14.147	40		12.647	S2/F1
12.688		47	14.188		S2/F1
	14.188	41		12.688	S2/F1
12.729		48	14.229		S2/F1
	14.229	42		12.729	S2/F1
	14.021	01		10.971	F2/F2
	14.062	02		11.012	F2/F2
	14.103	03		11.053	F2/F2
	14.144	04		11.094	F2/F2
	14.185	05		11.135	F2/F2
	14.226	06		11.176	F2/F2
10.971	14.021	01			F2/S2
11.012	14.062	02			F2/S2
11.053	14.103	03			F2/S2
11.094	14.144	04			F2/S2
11.135	14.185	05			F2/S2
11.176	14.226	06			F2/S2
12.524		31	13.768		S1/S1
	13.768	25		12.524	S1/S1
12.565		32	13.809		S1/S1
	13.809	26		12.565	S1/S1
12.606		33	13.850		S1/S1
	13.850	27		12.606	S1/S1
12.647		34	13.891		S1/S1
	13.891	28		12.647	S1/S1
12.688		35	13.932		S1/S1
	13.932	29		12.688	S1/S1
12.729		36	13.973		S1/S1
	13.973	30		12.729	S1/S1
11.471		07	14.271		S2/S2
11.512		08	14.312		S2/S2
11.553		09	14.353		S2/S2
11.594		10	14.394		S2/S2
11.635		11	14.435		S2/S2
11.676		12	14.476		S2/S2
		07	14.271	11.471	S2/F2
		08	14.312	11.512	S2/F2
		09	14.353	11.553	S2/F2
		10	14.394	11.594	S2/F2
		11	14.435	11.635	S2/F2
		12	14.476	11.676	S2/F2

 INFORMATION ABOUT ATLAS 5  FLIGHT 2:

 

2, AV002

03020

Hellas Sat 2

13 May 2003 at 22.10 UT

C 41A

401

312 x 85457 km x 17°

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