UVSQ-SAT listened and demodulated
I've succesfully recevied and domodulated UVSQ-SAT, good signal on 437.020MHz and I was lucky that after some burst (during pass over EU at about 20:20Z of today) a continuos trasmission appears.
I haven't used the sw provided by AMSAT-F but demodulation is possible using gr_satellite with other 1k2/9k6 BPSK demodulator, in particular I was able to demodulate with:
$ gr_satellites "KR01" --wavfile ~/gqrx_20210212_202658_437030331.wav --samp_rate 48e3 --hexdump >uvsqsat_20210212_202658_437020.txt
Here is a little:
* MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 58 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 23 20 03 19 00 00 00 02 60 25 e7 0020: 45 00 00 00 18 00 40 32 66 51 2d 03 f2 4e 00 29 0030: 3f 94 20 00 4d ec 20 e0 63 2e *********************************** * MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 112 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 59 20 03 19 00 00 00 02 60 25 e7 0020: 49 00 00 00 12 35 07 07 00 04 dd fb 00 04 dd fb 0030: 00 00 00 00 02 53 02 ab 02 a9 03 ff 02 e3 01 9b 0040: 00 bb 01 17 01 3c 02 ab ff f6 00 06 00 87 00 d2 0050: 00 1b 01 c8 00 14 00 00 36 ee 00 00 3c 25 00 00 0060: 2b 05 00 00 32 c2 00 00 a9 91 00 00 1b 88 c1 44 *********************************** * MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 160 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 89 20 03 19 00 00 00 02 60 25 e7 0020: 80 00 00 00 15 1a 05 a1 01 80 07 fd 03 a4 20 02 0030: 01 87 00 6a 20 05 00 54 00 17 00 67 00 00 80 00 0040: 0b 6a 20 02 14 01 07 fd 1f fc 00 a2 00 4f 14 04 0050: 00 2b 00 06 14 00 01 45 00 35 ff 69 00 01 00 00 0060: 0d 57 01 bd 00 30 0d 5a 00 58 00 08 00 e5 00 26 0070: 01 81 00 29 00 df 00 8f 01 80 00 62 00 e5 00 26 0080: 01 81 00 29 1a 05 41 01 80 01 00 00 00 17 98 fe 0090: 00 00 02 12 00 a4 00 06 00 00 00 13 00 00 3a aa *********************************** * MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 226 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 cb 20 03 19 00 00 00 02 60 25 e7 0020: b6 00 00 00 13 60 25 e7 9b 01 00 1e 95 95 95 95 0030: 00 32 00 32 00 64 4f d0 00 64 e3 be 00 65 12 16 0040: 00 79 90 fe 00 af 2f 1b 00 af 22 06 00 af 0d a7 0050: 00 ae f4 de 00 67 35 f6 00 6b 12 08 00 60 73 91 0060: 00 69 b2 7f 00 6d 1f 97 00 43 4b 40 00 1d 7a 85 0070: 00 66 25 b3 00 6b 60 72 00 61 4c 7a 00 6c af b8 0080: 00 5f 68 df 00 47 be 2c 00 1d 12 cc 00 5e d5 db 0090: 00 5f fd 1c 00 5f eb bf 00 68 ad 49 00 5c 15 0e 00a0: 00 6b bb ce 00 1c ad 70 00 71 c2 a0 00 63 a1 91 00b0: 00 61 81 c2 00 5f 90 3b 00 60 70 33 00 6a 42 f9 00c0: 00 1d 1c cb 01 8f 00 a7 fe f8 fb 00 ff 9b 00 a6 00d0: ff eb fe c7 00 52 00 15 03 00 a9 0e 00 04 1b 13 00e0: 4d 43
73, Lapo IK5NAX
I've tried to find the TLE data but Celstrak and NORAD don't have it.
Kevin, WB5RUE
-----Original Message----- From: Lapo Pieri [mailto:[email protected]] Sent: Friday, February 12, 2021 3:16 PM To: amsat bb [email protected] Cc: Daniel Estévez [email protected] Subject: [AMSAT-BB] UVSQ-SAT listened and demodulated
I've succesfully recevied and domodulated UVSQ-SAT, good signal on 437.020MHz and I was lucky that after some burst (during pass over EU at about 20:20Z of today) a continuos trasmission appears.
I haven't used the sw provided by AMSAT-F but demodulation is possible using gr_satellite with other 1k2/9k6 BPSK demodulator, in particular I was able to demodulate with:
$ gr_satellites "KR01" --wavfile ~/gqrx_20210212_202658_437030331.wav --samp_rate 48e3 --hexdump >uvsqsat_20210212_202658_437020.txt
Here is a little:
* MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 58 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 23 20 03 19 00 00 00 02 60 25 e7 0020: 45 00 00 00 18 00 40 32 66 51 2d 03 f2 4e 00 29 0030: 3f 94 20 00 4d ec 20 e0 63 2e *********************************** * MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 112 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 59 20 03 19 00 00 00 02 60 25 e7 0020: 49 00 00 00 12 35 07 07 00 04 dd fb 00 04 dd fb 0030: 00 00 00 00 02 53 02 ab 02 a9 03 ff 02 e3 01 9b 0040: 00 bb 01 17 01 3c 02 ab ff f6 00 06 00 87 00 d2 0050: 00 1b 01 c8 00 14 00 00 36 ee 00 00 3c 25 00 00 0060: 2b 05 00 00 32 c2 00 00 a9 91 00 00 1b 88 c1 44 *********************************** * MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 160 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 89 20 03 19 00 00 00 02 60 25 e7 0020: 80 00 00 00 15 1a 05 a1 01 80 07 fd 03 a4 20 02 0030: 01 87 00 6a 20 05 00 54 00 17 00 67 00 00 80 00 0040: 0b 6a 20 02 14 01 07 fd 1f fc 00 a2 00 4f 14 04 0050: 00 2b 00 06 14 00 01 45 00 35 ff 69 00 01 00 00 0060: 0d 57 01 bd 00 30 0d 5a 00 58 00 08 00 e5 00 26 0070: 01 81 00 29 00 df 00 8f 01 80 00 62 00 e5 00 26 0080: 01 81 00 29 1a 05 41 01 80 01 00 00 00 17 98 fe 0090: 00 00 02 12 00 a4 00 06 00 00 00 13 00 00 3a aa *********************************** * MESSAGE DEBUG PRINT PDU VERBOSE * ((transmitter . 9k6 BPSK downlink)) pdu_length = 226 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 cb 20 03 19 00 00 00 02 60 25 e7 0020: b6 00 00 00 13 60 25 e7 9b 01 00 1e 95 95 95 95 0030: 00 32 00 32 00 64 4f d0 00 64 e3 be 00 65 12 16 0040: 00 79 90 fe 00 af 2f 1b 00 af 22 06 00 af 0d a7 0050: 00 ae f4 de 00 67 35 f6 00 6b 12 08 00 60 73 91 0060: 00 69 b2 7f 00 6d 1f 97 00 43 4b 40 00 1d 7a 85 0070: 00 66 25 b3 00 6b 60 72 00 61 4c 7a 00 6c af b8 0080: 00 5f 68 df 00 47 be 2c 00 1d 12 cc 00 5e d5 db 0090: 00 5f fd 1c 00 5f eb bf 00 68 ad 49 00 5c 15 0e 00a0: 00 6b bb ce 00 1c ad 70 00 71 c2 a0 00 63 a1 91 00b0: 00 61 81 c2 00 5f 90 3b 00 60 70 33 00 6a 42 f9 00c0: 00 1d 1c cb 01 8f 00 a7 fe f8 fb 00 ff 9b 00 a6 00d0: ff eb fe c7 00 52 00 15 03 00 a9 0e 00 04 1b 13 00e0: 4d 43
73, Lapo IK5NAX
-----------------------------------------------------------
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It’s in nasabare.txt, using a likely suspect of object number.
Mark N8MH
On Fri, Feb 12, 2021 at 6:09 PM Kevin Muenzler via AMSAT-BB < [email protected]> wrote:
I've tried to find the TLE data but Celstrak and NORAD don't have it.
Kevin, WB5RUE
-----Original Message----- From: Lapo Pieri [mailto:[email protected]] Sent: Friday, February 12, 2021 3:16 PM To: amsat bb [email protected] Cc: Daniel Estévez [email protected] Subject: [AMSAT-BB] UVSQ-SAT listened and demodulated
I've succesfully recevied and domodulated UVSQ-SAT, good signal on 437.020MHz and I was lucky that after some burst (during pass over EU at about 20:20Z of today) a continuos trasmission appears.
I haven't used the sw provided by AMSAT-F but demodulation is possible using gr_satellite with other 1k2/9k6 BPSK demodulator, in particular I was able to demodulate with:
$ gr_satellites "KR01" --wavfile ~/gqrx_20210212_202658_437030331.wav--samp_rate 48e3 --hexdump >uvsqsat_20210212_202658_437020.txt
Here is a little:
- MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 9k6 BPSK downlink)) pdu_length = 58 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 23 20 03 19 00 00 00 02 60 25 e7 0020: 45 00 00 00 18 00 40 32 66 51 2d 03 f2 4e 00 29 0030: 3f 94 20 00 4d ec 20 e0 63 2e
- MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 9k6 BPSK downlink)) pdu_length = 112 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 59 20 03 19 00 00 00 02 60 25 e7 0020: 49 00 00 00 12 35 07 07 00 04 dd fb 00 04 dd fb 0030: 00 00 00 00 02 53 02 ab 02 a9 03 ff 02 e3 01 9b 0040: 00 bb 01 17 01 3c 02 ab ff f6 00 06 00 87 00 d2 0050: 00 1b 01 c8 00 14 00 00 36 ee 00 00 3c 25 00 00 0060: 2b 05 00 00 32 c2 00 00 a9 91 00 00 1b 88 c1 44
- MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 9k6 BPSK downlink)) pdu_length = 160 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 89 20 03 19 00 00 00 02 60 25 e7 0020: 80 00 00 00 15 1a 05 a1 01 80 07 fd 03 a4 20 02 0030: 01 87 00 6a 20 05 00 54 00 17 00 67 00 00 80 00 0040: 0b 6a 20 02 14 01 07 fd 1f fc 00 a2 00 4f 14 04 0050: 00 2b 00 06 14 00 01 45 00 35 ff 69 00 01 00 00 0060: 0d 57 01 bd 00 30 0d 5a 00 58 00 08 00 e5 00 26 0070: 01 81 00 29 00 df 00 8f 01 80 00 62 00 e5 00 26 0080: 01 81 00 29 1a 05 41 01 80 01 00 00 00 17 98 fe 0090: 00 00 02 12 00 a4 00 06 00 00 00 13 00 00 3a aa
- MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 9k6 BPSK downlink)) pdu_length = 226 contents = 0000: 98 82 a8 9a 9e a6 e0 98 82 a8 9a 9e a6 63 03 f0 0010: 08 01 c0 00 00 cb 20 03 19 00 00 00 02 60 25 e7 0020: b6 00 00 00 13 60 25 e7 9b 01 00 1e 95 95 95 95 0030: 00 32 00 32 00 64 4f d0 00 64 e3 be 00 65 12 16 0040: 00 79 90 fe 00 af 2f 1b 00 af 22 06 00 af 0d a7 0050: 00 ae f4 de 00 67 35 f6 00 6b 12 08 00 60 73 91 0060: 00 69 b2 7f 00 6d 1f 97 00 43 4b 40 00 1d 7a 85 0070: 00 66 25 b3 00 6b 60 72 00 61 4c 7a 00 6c af b8 0080: 00 5f 68 df 00 47 be 2c 00 1d 12 cc 00 5e d5 db 0090: 00 5f fd 1c 00 5f eb bf 00 68 ad 49 00 5c 15 0e 00a0: 00 6b bb ce 00 1c ad 70 00 71 c2 a0 00 63 a1 91 00b0: 00 61 81 c2 00 5f 90 3b 00 60 70 33 00 6a 42 f9 00c0: 00 1d 1c cb 01 8f 00 a7 fe f8 fb 00 ff 9b 00 a6 00d0: ff eb fe c7 00 52 00 15 03 00 a9 0e 00 04 1b 13 00e0: 4d 43
73, Lapo IK5NAX
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Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program!
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Hi Lapo, Kevin, Mark, all !
Le 12/02/2021 à 23:08, Kevin Muenzler via AMSAT-BB a écrit :
I've tried to find the TLE data but Celstrak and NORAD don't have it.
Difficult to choose among the 143 birds launched at the same time isn't it ? :-)
I was using 2021-0006Z, cat number 47436, not too bad, when I met Nicolas Nolhier F5MDY, director of the "Centre Spatial Universitaire de Toulouse", one of the station used to control the satellite. I took the opportunity to ask him what was the tle they were using:
2021006-AB, cat number 47438
Looks like it's a better guess than the previous I used. Maybe Christophe MERCIER, President of AMASAT-F will confirm ?
Yes, the telemetry, BPSK G3RUH, first 1k2, now permanently 9k6 bps is not difficult to demodulate with the gr-satellite/gnuradio flowgrafh used three years ago for the PicSat, thanks to Daniel Estevez. Nicolas Nolhier suggested me that I also try the UZ7HO SoundModem (the one in "other-versions") : works fine, too, I was surprised because under "wine" which allows to execute many Windows executables binaries under Linux (but Wine Is Not an Emulator, HI !)
Have a nice day, enjoy UVSQSAT, 73+++ !
Jean-Pierre F5YG
Hi Jean Pierre,
06:13 Sat 13 Feb 21 , Jean-Pierre Godet wrote:
Difficult to choose among the 143 birds launched at the same time isn't it ? :-)
Yeah, I think so!
2021006-AB, cat number 47438
The same I've used, from nasabare.txt, it fit very well with doppler correction, here.
Yes, the telemetry, BPSK G3RUH, first 1k2, now permanently 9k6 bps is not difficult to demodulate with the gr-satellite/gnuradio flowgrafh used three years ago for the PicSat, thanks to Daniel Estevez. Nicolas Nolhier suggested me that I also try the UZ7HO SoundModem (the one in "other-versions") : works fine, too, I was surprised because under "wine" which allows to execute many Windows executables binaries under Linux (but Wine Is Not an Emulator, HI !)
Thank you for confirmation, I'll try to receive UVSQSAT again
73, Lapo IK5NAX
The issue that I have is that I am using an APP in my iPad and it just loads the files directly and I never get a chance to see them. All I see are satellite names, UVSQ is not in the list. Does it have a different official name?
Kevin, WB5RUE
-----Original Message----- From: Lapo Pieri [mailto:[email protected]] Sent: Saturday, February 13, 2021 4:19 AM To: [email protected] Subject: [AMSAT-BB] Re: UVSQ-SAT listened and demodulated
Hi Jean Pierre,
06:13 Sat 13 Feb 21 , Jean-Pierre Godet wrote:
Difficult to choose among the 143 birds launched at the same time isn't it ? :-)
Yeah, I think so!
2021006-AB, cat number 47438
The same I've used, from nasabare.txt, it fit very well with doppler correction, here.
Yes, the telemetry, BPSK G3RUH, first 1k2, now permanently 9k6 bps is not difficult to demodulate with the gr-satellite/gnuradio flowgrafh used three years ago for the PicSat, thanks to Daniel Estevez. Nicolas Nolhier suggested me that I also try the UZ7HO SoundModem (the one in "other-versions") : works fine, too, I was surprised because under "wine" which allows to execute many Windows executables binaries under Linux (but Wine Is Not an Emulator, HI !)
Thank you for confirmation, I'll try to receive UVSQSAT again
73, Lapo IK5NAX
-----------------------------------------------------------
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16:00 Sat 13 Feb 21 , Kevin Muenzler via AMSAT-BB wrote:
The issue that I have is that I am using an APP in my iPad and it just loads the files directly and I never get a chance to see them. All I see are satellite names, UVSQ is not in the list. Does it have a different official name?
I don't know other names, here you can find other info:
https://space.skyrocket.de/doc_sdat/uvsq-sat.htm
maybe your app accepts cospar or norad ID that's 47438:
UVSQSAT 1 47438U 21006AB 21042.12796468 .00000655 00000-0 40881-4 0 9998 2 47438 97.5055 105.5227 0013220 167.5836 192.5723 15.12840632 2952
73, Lapo IK5NAX
Greetings all, It finally showed up in my list so now I'm able to track it. Next task, decode it.
Thanks all.
Kevin, WB5RUE
-----Original Message----- From: Lapo Pieri [mailto:[email protected]] Sent: Saturday, February 13, 2021 4:41 PM To: Kevin Muenzler via AMSAT-BB [email protected] Subject: [AMSAT-BB] Re: UVSQ-SAT listened and demodulated
16:00 Sat 13 Feb 21 , Kevin Muenzler via AMSAT-BB wrote:
The issue that I have is that I am using an APP in my iPad and it just loads the files directly and I never get a chance to see them. All I see are satellite names, UVSQ is not in the list. Does it have a different official name?
I don't know other names, here you can find other info:
https://space.skyrocket.de/doc_sdat/uvsq-sat.htm
maybe your app accepts cospar or norad ID that's 47438:
UVSQSAT 1 47438U 21006AB 21042.12796468 .00000655 00000-0 40881-4 0 9998 2 47438 97.5055 105.5227 0013220 167.5836 192.5723 15.12840632 2952
73, Lapo IK5NAX
-----------------------------------------------------------
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program!
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
participants (4)
-
Jean-Pierre Godet -
Kevin Muenzler -
Lapo Pieri -
Mark L. Hammond