“ AsiaSat [2] -7 ” ( Chinese 亞星 , AsiaSat-7 ) is a high-power commercial geostationary telecommunications satellite owned by AsiaSat ( Asia Satellite Telecommunications Co. Ltd. ), a Hong Kong- based satellite operator. The spacecraft (SC) is intended for the FSS service and will provide television broadcasting, telephone service and VSAT- based services in the Asia-Pacific region .
| AsiaSat-7 | |
|---|---|
| AsiaSat-5C | |
| Manufacturer |  Space systems / loral |
| Operator |  AsiaSat ( Hong Kong ) |
| Tasks | Communication satellite |
| Launch pad |  Baikonur Square No. 200. PU №39 |
| Launch vehicle | LV Proton-M - Breeze-M |
| Launch | November 25, 2011 23:10:00 Moscow time [1] |
| NSSDC ID | 2011-069A |
| SCN | 37933 |
| Specifications | |
| Platform | SS / L 1300 |
| Weight | 3813 kg |
| The term of active existence | 15 years |
| Elements of the orbit | |
| Orbit type | GSO |
| Standing point | 105.5 ° in. d. |
| Target equipment | |
| Transponders | 28 C , 17 Ku , 17 Ka |
In 2014, “Asia-Sat-7” will replace “ Asia-Sat-3C ” in the orbital position of 105.5 ° c. d. when the term of active existence of the latter comes to an end [3] .
Content
Design
The payload of the ASIASAT-7 SC includes 28 C-band transponders and 17 Ku-band transponders , as well as one Ka-band transponder . C-band coverage covers all of Asia , the Middle East , Australia , and the Commonwealth of Independent States . 3 Ku-band beams are designed for East and South Asia. In addition, another Ku-band redirected beam is planned to be used in regions where it will be necessary to meet market demand [3] .
The ASIASAT-7 spacecraft is based on the Space Systems / Loral 1300 platform with an active life of more than 15 years. The weight of the satellite in orbit is 3813 kg [4] .
Satellite Launch
The launch of the satellite was carried out by International Launch Services (ILS) using the Proton-M LV with the Briz-M upper stage. The launch was made on November 25, 2011 from the platform 200 L (launcher No. 39) of the Baikonur Cosmodrome [1] . The ASIASAT-7 spacecraft has already become the 4th satellite of the AsiaSat company launched on the Proton [4] [5] . On November 26, at 8 hours 23 minutes Moscow time, the ASIASAT-7 spacecraft regularly separated from the upper stage and was transferred to the customer for management [6] .
Due to the relatively small weight of the satellite (3813 kg), close to the capabilities of Proton to bring the payload to the geostationary orbit (up to 3250 kg [7] ), the ASIASAT-7 spacecraft was launched into a geo-transitional orbit very close to the geostationary [ 4] . Thus, the final maneuver to raise the orbit to the geostationary one, performed by the satellite itself using its own propulsion system, will require minimal use of fuel and will extend the active life [8] .
Notes
- ↑ 1 2 Successful launch of the Proton-M launch vehicle with the AziaSat-7 spacecraft , Roscosmos (11/25/2011).
- ↑ The space warhead for launching the AsiaSat-7 satellite has been assembled . Roscosmos website (November 16, 2011). - confirmation of the spelling of the name. Archived on September 4, 2012.
- ↑ 1 2 SPACE SYSTEMS / LORAL DELIVERS ASIASAT 7 SATELLITE TO BAIKONUR LAUNCH SITE AHEAD OF SCHEDULE . Asia Satellite Telecommunications Company Limited (10.24.2011). Date of treatment November 19, 2011. Archived on September 4, 2012.
- ↑ 1 2 3 AsiaSat 7, mission overview . International Launch Services (ILS). Date of treatment November 20, 2011. Archived on September 4, 2012.
- ↑ Launch of the ASIASAT-7 spacecraft , Roscosmos .
- ↑ The spacecraft "Asia-Sat-7" put into orbit , the Federal Space Agency (Roskosmos) (11/26/2011).
- ↑ Proton Mission Planner's Guide, LKEB-9812-1990, Issue 1, Revision 7, July 2009, SECTION 2 LV Performance, p. 2.1 . ILS International Launch Services Inc .. Date accessed November 26, 2011. Archived September 4, 2012.
- ↑ Maral G, Bousquet M SATELLITE COMMUNICATIONS SYSTEMS, Fifth Edition -: John Wiley & Sons Ltd, 2009 - C. 623-624 - ISBN 978-0-470-71458-4