[amsat-bb] Fwd: USNAP1 lives! - capture UHF data pse -UPDATE

[Alan Johnston]

Hi Bob,

At SatNOGS, we are getting some good 437.605 MHz 9k6 signals from
BRICSat-2/USNAP-1 .  They haven't automatically decoded yet, perhaps due to
the 5kHz frequency offset.  But you can download the audio file and you
should be able to decode them.

Here are some good ones:

https://network.satnogs.org/observations/861257/
https://network.satnogs.org/observations/861256/
https://network.satnogs.org/observations/861250/

Future good observations will be displayed here:

https://network.satnogs.org/observations/?future=0&bad=0&unvetted=0&failed=0&norad=99970&observer=&station=&start-time=&end-time=

Good luck!!

73,
Alan
KU2Y

On Fri, Jul 26, 2019 at 8:22 AM Robert Bruninga via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> USNAP1 on 145.825 also uses the call of
>
> USNA14 on 437.605 MHz 9600 baud
>
>
>
> And has been added to the http://aprs.org/sats.html web page
>
>
>
> *From:* Robert Bruninga <bruninga at usna.edu>
> *Sent:* Thursday, July 25, 2019 11:56 PM
> *To:* amsat bb <amsat-bb at amsat.org>
> *Cc:* Jin Kang <kang at usna.edu>; Jeffery King <jking at usna.edu>; Robert
> Bruninga <bruninga at usna.edu>
> *Subject:* Re: [amsat-bb] Fwd: USNAP1 lives! - capture UHF data pse -UPDATE
>
>
>
> FREQ is 437.605 (corrected)
>
> Object is 44355
>
> I captured objects via VK6HAM at 151929 to 152812 for PSAT2 and for USNAP1
> from 151803 to 152711 showing USNA P1 about a minute ahead of PSAT2.
>
> It is only alive for about 60 to 70 minutes when in the sun apparently by
> looking at the T# telemetry count.
>
> Bob
>
>
>
> On Thu, Jul 25, 2019 at 11:42 PM Robert Bruninga <bruninga at usna.edu>
> wrote:
>
> Standard 9600 baud AX.25.  No special software.  Just need raw packets.on
> 447.605
>
> PSAT2 and USNAP1 were delppyed together and have identical external shape
> and so should be in same orbit, but due to mass differences, USNAP1 should
> be LEADING PSAT2.  We need to know by houw much.  Since PSAT2 is likely
> object 44354, and 44355 is very slightly leading (by 1 minute) that could
> be it.
>
> Bob
>
>
>
> On Thu, Jul 25, 2019 at 11:33 PM Jeff Moore via AMSAT-BB <
> amsat-bb at amsat.org>
> wrote:
>
> So what do we need to copy the downlink data??   Is there an app or is it
> straight ax.25 packet???
>
> Jeff Moore  --  KE7ACY
> CN94
>
> On Thu, Jul 25, 2019 at 8:27 PM Robert Bruninga via AMSAT-BB <
> amsat-bb at amsat.org> wrote:
>
> > It looks liike PSAT2's sister cubesat finally woke up today (a month
> after
> > launch) at 0614z on 25 July:
> >
> > http://www.findu.com/cgi-bin/raw.cgi?call=usnap1-1&time=1
> >
> > The VHF telemetry shown here has only bus voltage.  The digipeater is OFF
> > and will remain off until we find out what happened.
> >
> > In the mean time, we need all the capture we can get of the 9600 baud
> > downlink on 437.605 MHz +/- Doppler.  There is a beacon every 30 seconds.
> >
> > Bob, WB4APR
> > _______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
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> _______________________________________________
> Sent via AMSAT-BB at 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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