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WG3K > ANS 16.11.24 01:40l 45 Lines 1896 Bytes #142 (0) @ AMSAT
BID : ANS315.4
Read: GUEST
Subj: ASRTU-1 Satellite With FM Transponder Launched
Path: IZ3LSV<I0OJJ<GB7CIP<VK2RZ<KC9UHI<KA1VSC<WG3K
Sent: 241116/0034Z 10017@WG3K.#SMD.MD.USA.NOAM LinBPQ6.0.24
On November 4, 2024 at 23:18 UTC, a Soyuz rocket launched from Vostochny
with at least 17 satellites using amateur satellite service frequencies.
Among those launched was ASRTU-1, a 12U CubeSat designed by Russian and
Chinese students and developed by the Harbin Institute of Technology in
Harbin, China, for education and amateur radio.
The satellite contains an FM transponder, which is currently operational,
with an uplink of 145.850 MHz (67 Hz CTCSS tone required) and a downlink of
435.400 MHz. After the repeater detects the end of uplink, it will wait for
0.5s. If no new uplink in 0.5s, telemetry will be sent. So make fast QSOs
so the telemetry is less like to interrupt you.
The satellite also contains two cameras with an SSDV downlink for low
resolution images on 436.210 MHz, and a high speed downlink on 10460.00 MHz
for high resolution images.
On November 7, 2024, the camera system was tested for the first time. N6RFM
uplinked the command and the image was downloaded by Chinese stations using
the UHF SSDV downlink.
Windows software for decoding telemetry is available at
https://drive.google.com/file/d/1W8nm-P0_h0J1Bd1eif74mLo-EuRdWcjH
A Live ISO Linux image is also available for telemetry at
https://drive.google.com/drive/folders/1T6GMNnDNEEavckoe4oPXPIU_SPFXLDd4
A Telegram group has been created for discussing the satellite:
https://t.me/+I5NTtX7eAJA4ZDVl
Latest TLEs:
ASRTU-1_20241108D
1 99130U 24313.98869213 .00036395 00000-0 15511-2 0 00005
2 99130 097.3830 178.7387 0016365 224.8894 196.6964 15.22873038000014
*ASRTU-1*
Uplink FM
(67 Hz CTCSS) Downlink FM Comments
ASRTU-1 145.850 MHz 435.400 MHz In orbit, commissioning
Also downlinks on 436.210 MHz, 10460.00 MHz. Download Live CD
https://drive.google.com/drive/folders/1T6GMNnDNEEavckoe4oPXPIU_SPFXLDd4 for
telemetry decoding.
*[ANS thanks BG2BHC, the IARU, and AMSAT-F for the above information]*
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