Re: [amsat-bb] Duchifat3 FM transponder?
Yes we have been discussing this on twitter. It was successfully launched yestorday by ISRO and shortly after it was heard by Glenn AA5PK and a few others over the US on 436.420 with the FM repeater active. As of today the FM repeater is not on, only 9600 baud telemetry. So very good sign the satellite is functioning well. There's also a good chance that the repeater will be active continuously rather on a schedule as they said all 3 of its payloads will operate in "parallel"
Frequencys:
Downlink: 436.420 (stated 436.400 but it's been heard 20khz above the published frequency for some reason) Uplink: 145.970 no tone
Status as of this post: 9K6 telemetry only.
Preliminary TLE (not 100% accurate but close) allegedly could be object 2019-089B
DUCHIFAT-3 1 84101U 19345.41319444 .00000000 00000-0 50000-4 0 08 2 84101 37.0000 148.0000 0001442 0.0000 140.0000 15.02563222 03
73 Nick KE8AKW
Thank you, Nick. Good info. Are there plans to give it an OSCAR number and add it to the "Pass Predictions"? Perhaps the AMSAT News Service could publish an update for this forum.
Steve AI9IN
On 2019-12-12 12:44 pm, Nicholas Mahr KE8AKW via AMSAT-BB wrote:
Yes we have been discussing this on twitter. It was successfully launched yestorday by ISRO and shortly after it was heard by Glenn AA5PK and a few others over the US on 436.420 with the FM repeater active. As of today the FM repeater is not on, only 9600 baud telemetry. So very good sign the satellite is functioning well. There's also a good chance that the repeater will be active continuously rather on a schedule as they said all 3 of its payloads will operate in "parallel"
Frequencys:
Downlink: 436.420 (stated 436.400 but it's been heard 20khz above the published frequency for some reason) Uplink: 145.970 no tone
Status as of this post: 9K6 telemetry only.
Preliminary TLE (not 100% accurate but close) allegedly could be object 2019-089B
DUCHIFAT-3 1 84101U 19345.41319444 .00000000 00000-0 50000-4 0 08 2 84101 37.0000 148.0000 0001442 0.0000 140.0000 15.02563222 03
73 Nick KE8AKW _______________________________________________ Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Steve,
It will be in pass predictions, though with a temporary ID until it is positively identified.
OSCAR numbers depend on the owner/operator of the satellite requesting one. See https://www.amsat.org/oscar-numbers-policy/
This group hasn't released any updates on the FM transponder operating plans that I have seen and so far there has only been one report of hearing the transponder online.
73,
Paul, N8HM
On Thu, Dec 12, 2019 at 1:16 PM AI9IN via AMSAT-BB [email protected] wrote:
Thank you, Nick. Good info. Are there plans to give it an OSCAR number and add it to the "Pass Predictions"? Perhaps the AMSAT News Service could publish an update for this forum.
Steve AI9IN
On 2019-12-12 12:44 pm, Nicholas Mahr KE8AKW via AMSAT-BB wrote:
Yes we have been discussing this on twitter. It was successfully launched yestorday by ISRO and shortly after it was heard by Glenn AA5PK and a few others over the US on 436.420 with the FM repeater active. As of today the FM repeater is not on, only 9600 baud telemetry. So very good sign the satellite is functioning well. There's also a good chance that the repeater will be active continuously rather on a schedule as they said all 3 of its payloads will operate in "parallel"
Frequencys:
Downlink: 436.420 (stated 436.400 but it's been heard 20khz above the published frequency for some reason) Uplink: 145.970 no tone
Status as of this post: 9K6 telemetry only.
Preliminary TLE (not 100% accurate but close) allegedly could be object 2019-089B
DUCHIFAT-3 1 84101U 19345.41319444 .00000000 00000-0 50000-4 0 08 2 84101 37.0000 148.0000 0001442 0.0000 140.0000 15.02563222 03
73 Nick KE8AKW _______________________________________________ Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
Thank you, Paul. I'll be watching (and listening) for it.
Steve AI9IN
On 2019-12-12 1:21 pm, Paul Stoetzer wrote:
Steve,
It will be in pass predictions, though with a temporary ID until it is positively identified.
OSCAR numbers depend on the owner/operator of the satellite requesting one. See https://www.amsat.org/oscar-numbers-policy/
This group hasn't released any updates on the FM transponder operating plans that I have seen and so far there has only been one report of hearing the transponder online.
73,
Paul, N8HM
On Thu, Dec 12, 2019 at 1:16 PM AI9IN via AMSAT-BB [email protected] wrote:
Thank you, Nick. Good info. Are there plans to give it an OSCAR number and add it to the "Pass Predictions"? Perhaps the AMSAT News Service could publish an update for this forum.
Steve AI9IN
Duchifat-3 Predictions & Freqs+Doppler for your location at:
http://amsat.org.ar/pass.htm?satx=duch3
Good Luck, congrats & Tks to Israel & ISRO.
73, lu7abf, Pedro
On 12/12/19, AI9IN via AMSAT-BB [email protected] wrote:
Thank you, Nick. Good info. Are there plans to give it an OSCAR number and add it to the "Pass Predictions"? Perhaps the AMSAT News Service could publish an update for this forum.
Steve AI9IN
participants (4)
-
Nicholas Mahr KE8AKW -
Paul Stoetzer -
Pedro Converso -
skristof＠etczone.com