收到電郵資訊:.
Alan Kung, BA1DU, provided China AMSAT's (CAMSAT) frequency and mode
information for the September 19 launch of mulitple satellites on Beijing’s
new Chang Zheng 6 (CZ-6) rocket from the Taiyuan Satellite Launch Center.
Estimated early Keplerian elements for a September 19 launch are:
XW-2(CAS-3)
1 99999U 15262.96885748 .00004985 00000-0 28395-3 0 00005
2 99999 097.4712 270.8252 0010383 266.0522 270.6644 15.12847565000015
Launch time was planned for 23:00:00 UTC on 2015-09-18 with deployment
of the
satellites at 23:15:14 UTC. Technical difficulties postponed the launch
until
23:00:00 UTC on 2015-09-19.
The ARRL posted a Word Doc with frequency information from BA1DU at:
http://www.arrl.org/files/media/News/XW-2CAS-3%20Sats.doc
AMSAT-UK has a link to this document at:
http://amsat-uk.org/2015/09/16/camsat-xw-2-satellites-launch-info/
The XW-2A through XW-2F satellites are using the same type of antenna.
These
are quarter wavelength deployable monopole whip antennas and made of steel
tape, including a UHF uplink antenna and a VHF downlink antenna for each
satellite.
TX
Satellite Frequencies (MHz) Power Modulation
----------------------------- ------- -------------------
XW-2A (CAS-3A)
Digital Telemetry: 145.640 20 dBm 9.6/19.2kbps, GMSK
CW Beacon: 145.660 17 dBm 22wpm, CW
Inverting Linear Transponder
Uplink: 435.030 - 435.050
Downlink: 145.665 - 145.685 20 dBm
XW-2B (CAS-3B)
Digital Telemetry: 145.705 20 dBm 9.6/19.2kbps, GMSK
CW Beacon: 145.725 17 dBm 22wpm, CW
Inverting Linear Transponder
Uplink: 435.090 - 435.110
Downlink: 145.730 - 145.750 20 dBm
XW-2C (CAS-3C)
Digital Telemetry: 145.770 20 dBm 9.6/19.2kbps, GMSK
CW Beacon: 145.790 17 dBm 22wpm, CW
Inverting Linear Transponder
Uplink: 435.150 - 435.170
Downlink: 145.795 - 145.815 20 dBm
XW-2D (CAS-3D)
Digital Telemetry: 145.835 20 dBm 9.6/19.2kbps, GMSK
CW Beacon: 145.855 17 dBm 22wpm, CW
Inverting Linear Transponder
Uplink: 435.210 - 435.230
Downlink: 145.860 - 145.880 20 dBm
XW-2E (CAS-3E)
Digital Telemetry: 145.890 20 dBm 9.6kbps, GMSK
CW Beacon: 145.910 17 dBm 22wpm, CW
Inverting Linear Transponder
Uplink: 435.270 - 435.290
Downlink: 145.915 - 145.935 20 dBm
XW-2F (CAS-3F)
Digital Telemetry: 145.955 20 dBm 9.6kbps, GMSK
CW Beacon: 145.975 17 dBm 22wpm, CW
Inverting Linear Transponder
Uplink: 435.330 - 435.350
Downlink: 145.980 - 146.000 20 dBm
DCBB (CAS-3G)
Downlink: 145.475 Digital Telemetry 9.6kbps, GMSK
437.950 Digital Telemetry 9.6kbps, GMSK
LilacSat-2 (CAS-3H)
CW Beacon 437.200
APRS
Uplink: 144.390 AFSK
Downlink: 144.390 AFSK
FM Transponder
Uplink: 144.350 FM
Downlink: 437.225 FM
NUDT-Phone-Sat (CAS-3I)
Downlink: 437.300 Digital Telemetry 9.6kbps, FSK
The AMSAT-BB reports CW beacon activity from the satellites after launch
although the actual orbit is reported to be running approximately two
minutes
later than the estimated Keps.
[ANS thanks Alan Kung, BA1DU, and CAMSAT for the above information]
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