Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Very clean, strong signal here in CM98 just now on an overhead pass. I didn't have a chance to configure the automation, so tuning 70cm Doppler by hand while trying to copy CW with FLDIGI. Not much decoded, but I did see "NEXUS" among the gibberish.
Congrats!
Greg KO6TH
Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
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With an unexpected new TLE set published, NEXUS now has a slightly better match with object 43940, 2019-003J. Apparently TLEs have not yet stabilized.
73, Nico PA0DLO
On 18-01-19 14:07, Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
With increased separation it is now clear that NEXUS is object 43937, 2019-003F. Downlink 437.0732 MHz.
73, Nico PA0DLO
On 18-01-19 21:03, Nico Janssen wrote:
With an unexpected new TLE set published, NEXUS now has a slightly better match with object 43940, 2019-003J. Apparently TLEs have not yet stabilized.
73, Nico PA0DLO
On 18-01-19 14:07, Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
With increased separation it is now clear that NEXUS is object 43937, 2019-003F. Downlink 437.0732 MHz.
73, Nico PA0DLO
On 18-01-19 21:03, Nico Janssen wrote:
With an unexpected new TLE set published, NEXUS now has a slightly better match with object 43940, 2019-003J. Apparently TLEs have not yet stabilized.
73, Nico PA0DLO
On 18-01-19 14:07, Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
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Just noticed I have what could be a NEXUS packet on my log with 2.6 degrees of elevation.
BA:E7:F8:3D:63:3D:DC:A5:6F:13:2B:87:ED:06:80:2E:BC:FF:48:8A:1C:0C:6B
From [R7Cv] To []s|1]
[2019-01-23T19:36:55.620Z] Sat: NEXUS
Reporting URL: https://db.satnogs.org/api/telemetry/
Frame: noradID=43937&source=AD7NP×tamp=2019-01-23T19:36:55.620Z&frame=BAE7F83D633DDCA56F132B87ED06802EBCFF488A1C0C6B&locator=longLat&longitude=122.21W&latitude=47.65N&tncPort=0&azimuth=248.8&elevation=2.6&fDown=435892162
Carlos
AD7NP
Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10
________________________________ From: AMSAT-BB amsat-bb-bounces@amsat.org on behalf of Jean-Pierre Godet godetj@wanadoo.fr Sent: Sunday, January 20, 2019 1:22:45 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] NEXUS identified
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
With increased separation it is now clear that NEXUS is object 43937, 2019-003F. Downlink 437.0732 MHz.
73, Nico PA0DLO
On 18-01-19 21:03, Nico Janssen wrote:
With an unexpected new TLE set published, NEXUS now has a slightly better match with object 43940, 2019-003J. Apparently TLEs have not yet stabilized.
73, Nico PA0DLO
On 18-01-19 14:07, Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
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_______________________________________________ Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Carlos,
may I ask you which telemetry forwarder do you use?
This is neither a valid AX.25 packet nor a NEXUS packet. A good one looks like this:
9C8AB0AAA6406094A662B282AC6103F0A10002E50300009B829001010101010D520098014405 DC00D901280926066909CE09EA09250948095C09F309EF0A0509D6090C090B0A470A01095209 E109D775DE4ADD4ED90067FF41004E08CA07D9097C07E500
I wonder if SatNOGS has accepted this paket.
73 Mike DK3WN
-----Ursprüngliche Nachricht----- Von: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] Im Auftrag von Carlos Picoto Gesendet: 24 January 2019 04:21 An: Jean-Pierre Godet; amsat-bb@amsat.org Betreff: Re: [amsat-bb] NEXUS identified
Just noticed I have what could be a NEXUS packet on my log with 2.6 degrees of elevation.
BA:E7:F8:3D:63:3D:DC:A5:6F:13:2B:87:ED:06:80:2E:BC:FF:48:8A:1C:0C:6B
From [R7Cv] To []s|1]
[2019-01-23T19:36:55.620Z] Sat: NEXUS
Reporting URL: https://db.satnogs.org/api/telemetry/
Frame: noradID=43937&source=AD7NP×tamp=2019-01-23T19:36:55.620Z&frame=BAE7F83D 633DDCA56F132B87ED06802EBCFF488A1C0C6B&locator=longLat&longitude=122.21W&lat itude=47.65N&tncPort=0&azimuth=248.8&elevation=2.6&fDown=435892162
Carlos
AD7NP
Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10
________________________________ From: AMSAT-BB amsat-bb-bounces@amsat.org on behalf of Jean-Pierre Godet godetj@wanadoo.fr Sent: Sunday, January 20, 2019 1:22:45 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] NEXUS identified
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
With increased separation it is now clear that NEXUS is object 43937, 2019-003F. Downlink 437.0732 MHz.
73, Nico PA0DLO
On 18-01-19 21:03, Nico Janssen wrote:
With an unexpected new TLE set published, NEXUS now has a slightly better match with object 43940, 2019-003J. Apparently TLEs have not yet stabilized.
73, Nico PA0DLO
On 18-01-19 14:07, Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hi Mike,
Thanks for your reply.
I just went looking for this packet on the replay of the IQ recording and I don’t see any evidence of it. So not sure what Direwolf decoded in this case.
To answer your questions, I use my own implementation in C# of the SiDS protocol, it only does double checking against callsign for AX.25 packets and you correctly point out this is not a valid one.
On the Satnogs side it might get discarded afterwards but it does show the submission
Telemetry (frames)
Frames: 1 Latest frame submitted on 2019-01-23 19:36:55 by AD7NP-CN87vp
Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10
________________________________ From: Mike Rupprecht mail@mike-rupprecht.de Sent: Thursday, January 24, 2019 8:11:05 AM To: 'Carlos Picoto' Cc: 'Pierros Papadeas'; 'Jean-Pierre Godet'; amsat-bb@amsat.org Subject: AW: [amsat-bb] NEXUS identified
Carlos,
may I ask you which telemetry forwarder do you use?
This is neither a valid AX.25 packet nor a NEXUS packet. A good one looks like this:
9C8AB0AAA6406094A662B282AC6103F0A10002E50300009B829001010101010D520098014405 DC00D901280926066909CE09EA09250948095C09F309EF0A0509D6090C090B0A470A01095209 E109D775DE4ADD4ED90067FF41004E08CA07D9097C07E500
I wonder if SatNOGS has accepted this paket.
73 Mike DK3WN
-----Ursprüngliche Nachricht----- Von: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] Im Auftrag von Carlos Picoto Gesendet: 24 January 2019 04:21 An: Jean-Pierre Godet; amsat-bb@amsat.org Betreff: Re: [amsat-bb] NEXUS identified
Just noticed I have what could be a NEXUS packet on my log with 2.6 degrees of elevation.
BA:E7:F8:3D:63:3D:DC:A5:6F:13:2B:87:ED:06:80:2E:BC:FF:48:8A:1C:0C:6B
From [R7Cv] To []s|1]
[2019-01-23T19:36:55.620Z] Sat: NEXUS
Reporting URL: https://db.satnogs.org/api/telemetry/
Frame: noradID=43937&source=AD7NP×tamp=2019-01-23T19:36:55.620Z&frame=BAE7F83D 633DDCA56F132B87ED06802EBCFF488A1C0C6B&locator=longLat&longitude=122.21W&lat itude=47.65N&tncPort=0&azimuth=248.8&elevation=2.6&fDown=435892162
Carlos
AD7NP
Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10
________________________________ From: AMSAT-BB amsat-bb-bounces@amsat.org on behalf of Jean-Pierre Godet godetj@wanadoo.fr Sent: Sunday, January 20, 2019 1:22:45 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] NEXUS identified
With 43937 / 2019-003F the Doppler shift tracking is now perfect (and with 003B for OrigamiSat),
Many thanks Nico, 73 !
Jean-Pierre F5YG
On 20/01/19 11:44 AM, Nico Janssen wrote:
With increased separation it is now clear that NEXUS is object 43937, 2019-003F. Downlink 437.0732 MHz.
73, Nico PA0DLO
On 18-01-19 21:03, Nico Janssen wrote:
With an unexpected new TLE set published, NEXUS now has a slightly better match with object 43940, 2019-003J. Apparently TLEs have not yet stabilized.
73, Nico PA0DLO
On 18-01-19 14:07, Nico Janssen wrote:
Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz.
73, Nico PA0DLO
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@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! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Today 2019-01-24 15:10:43.426 UTC: from )0'"-6 to `@`)-10 (UNKNOWN U, payload: 35 byte) 000 > C0 00 DB DC 80 0B 2E DB DC 53 54 52 61 4E 44 31 20 4D 4F 44 020 > 45 4D 20 42 45 41 43 4F 4E 20 2D 20 48 65 6C 70 20 6D 65 20 040 > 4F 42 43 20 4B 65 6E 6F 62 69 0D 0A DB DC 00 C0
À.ÛÜ€..ÛÜSTRaND1 MODEM BEACON - Help me OBC Kenobi..ÛÜ.À ________________________________________________________________________________ 2019-01-24 15:12:43.421 UTC: from )0'"-6 to `@`)-10 (UNKNOWN U, payload: 35 byte) 000 > C0 00 DB DC 80 0D 2E DB DC 53 54 52 61 4E 44 31 20 4D 4F 44 020 > 45 4D 20 42 45 41 43 4F 4E 20 2D 20 48 65 6C 70 20 6D 65 20 040 > 4F 42 43 20 4B 65 6E 6F 62 69 0D 0A DB DC 00 C0
À.ÛÜ€..ÛÜSTRaND1 MODEM BEACON - Help me OBC Kenobi..ÛÜ.À ________________________________________________________________________________ 2019-01-24 15:14:43.431 UTC: from )0'"-6 to `@`)-10 (UNKNOWN U, payload: 35 byte) 000 > C0 00 DB DC 80 0F 2E DB DC 53 54 52 61 4E 44 31 20 4D 4F 44 020 > 45 4D 20 42 45 41 43 4F 4E 20 2D 20 48 65 6C 70 20 6D 65 20 040 > 4F 42 43 20 4B 65 6E 6F 62 69 0D 0A DB DC 00 C0
À.ÛÜ€..ÛÜSTRaND1 MODEM BEACON - Help me OBC Kenobi..ÛÜ.À
Yesterday 2019-01-23 14:10:09.512 UTC: from ________________________________ g|000 > C0 00 DB DC 80 0A 0C 02 89 03 08 CE F8 01 00 7D 32 01 00 C0 020 >
À.ÛÜ€...‰..Îø..}2..À ________________________________________________________________________________ 2019-01-23 14:10:10.010 UTC: from ________________________________ RI000 > C0 00 DB DC 80 0B 0C 02 89 05 08 A4 92 01 00 06 00 00 00 C0 020 >
À.ÛÜ€...‰..¤’......À ________________________________________________________________________________ Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10
Doppler measurements show that OrigamiSat 1 is object 43933, 2019-003B, (based on currently available TLE sets). Downlink: 437.499 MHz.
73, Nico PA0DLO
participants (5)
-
Carlos Picoto -
Greg D -
Jean-Pierre Godet -
Mike Rupprecht -
Nico Janssen