[ans] ANS-349 AMSAT News Service Special Bulletin - AMSAT China's XW-1 Launched

JoAnne Maenpaa k9jkm at comcast.net
Mon Dec 14 21:32:37 PST 2009


SB SAT @ AMSAT $ANS-349.01 
ANS Special Bulletin AMSAT China Says XW-1 Has Been Launched 

AMSAT News Service Bulletin 349.01 
>From AMSAT HQ SILVER SPRING, MD. 
December 15, 2009 
To All RADIO AMATEURS 
BID: $ANS-349.01 

China's 1st ever amateur radio satelite XW-1 is in space now! 

AMSAT China reports it was launched at about around 0230 UTC on 
December 15, 2009. The beacon was received in Sanya after launch. 

XW-1 was a secondary payload aboard the CZ-4C rocket from Taiyuan 
Satellite Launch Center into a sun-synchronous orbit about 1200 
kilometers high. The primary payload of this launch is the Yaogen-8 
Remote Sensing Satellite. 

The preliminary keplerian elements for the satellite are: 

XW-1 
1 99999U 09349.11987269 .00000000 00000-0 00000-0 0 00006 
2 99999 100.4859 046.2958 0001760 147.4703 038.6343 13.15267150000017 

The XW-1 communications payload includes a beacon and three cross 
band transponders operating in FM, linear, and digital modes. 
Here is a Spacecraft Summary: 

Common Name: XW-1 
Alternate Name: CAS-1 
Satellite Type: Microsatellite 
Launch Date: TBD 
Launch Location: Taiyuan Satellite Launch Center of China 
Launch Vehicle: CZ-2C(LM-2C) Rocket 
Apogee: 1200km 
Perigee: 1200km 
Inclination: 105 degrees 
Period: 109 minutes 
Local time of descending node: 21:30 
Weight: 50kg 

Frequency Information 

Mode V/U (J) FM Voice Repeater (30 dbm (1 w)): 
Uplink: 145.8250 MHz FM, PL 67.0 Hz. 
Downlink: 435.6750 MHz FM 

Mode V/U (J) Linear Transponder (Inverting) (30 dbm (1 w)): 
Uplink:145.9250 - 145.9750 MHz SSB/CW 
Downlink:435.7650 - 435.7150 MHz SSB/CW 

Mode V/U (J) PacSat BBS (30 dbm (1 w)): 
Uplink:145.8250 MHz AFSK 1200 BPS 
Downlink: 435.6750 MHz AFSK 1200 BPS 

Mode Beacon (23 dbm (200mw)): 
Downlink:435.7900 MHz CW 

You can get XW-1 Telemetry Format at 
http://www.amsat.org/amsat-new/satellites/documents/XW-1_Telemetry_Format.pdf 

Details of the XW-1 satellite are available at: 
http://www.camsat.cn/index.php?option=com_content&view=article&id=56&Itemid=67 

[ANS thanks David Chen, BD5RV/4 and Alan Kung, BA1DU for the above information] 

/EX 





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