All posts by j0n

FASTRAC

1200mk: fm FAST1 to BEACON ctl UI pid=F0(Text) len 123 10:26:53
F11001644168409.969305821575.27 -3946529.59-13798400.40 +0.00000 +0.00000 +0.00000+1BBBBBBBBBBBBBBBBBBBBBBBBBBBBB
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 10:54:09
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1364283286 008 010 013 013 019
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 14:09:09
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1360283286 009 013 008 013 024
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 14:12:09
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1363283286 010 012 008 013 024

FASTRAC


9600mk: fm FAST1 to FAST2 ctl SABM 09:08:02
9600mk: fm FAST2 to FAST1 ctl SABM 11:14:14
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 11:15:34
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1352283286 009 012 009 014 023
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 14:36:33
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1364283286 010 011 011 014 020

FASTRAC


1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 05:06:05
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1341283286 009 014 011 016 022
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 10:06:05
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1365283286 008 014 009 017 022
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 16:42:04
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1384283286 010 016 010 018 025

FASTRAC


9600mk: fm FAST2 to FAST1 ctl SABM 07:52:57
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 07:57:08
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1337283286 010 016 010 016 0251200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 16:24:07
F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00000 +0.00000 +0.00000+1385283286 010 015 009 015 026

FASTRAC

Mike, DK3DWN replied to a post I made yesterday on the amsat-bb mailing list. FAST2 seems to be slightly high in frequency, so I updated my scripts last night and captured the following earlier:
1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 12:11:29
0000 F21001633 38263.461363903952.94 -3773326.54 +4430538.23 +0.00
0040 000 +0.00000 +0.00000+1381283286 012 014 012 017 025.

FASTRAC

Got up this morning, checked my mheard list and saw an entry I hadn’t seen before for FAST2. Checked my logfiles and I found this (output from listen -t -a):

1200mk: fm FAST2 to BEACON ctl UI pid=F0(Text) len 123 08:20:33
0000  F21001633 38263.461363903952.94 -3773326.54 +4430538.23    +0.00
0040  000    +0.00000    +0.00000+1332283286 016 013 004 006 031.

Wow, I wasn’t expecting a full beacon from one of the two FASTRAC satellites, sure, I recently started listening for them, but still, this was a bit unexpected given that I only have an omni-directional antenna, cool though.  Now what does it actually mean?

Well, FAST2 is the Amateur Radio callsign for FASTRAC 2 or “Emma” as the satellite is nicknamed.  For the rest, I decided to be lazy, Mike, DK3WN has quite a few telemetry decoder programs written, so I downloaded the one for FASTRAC, put it onto a VM, cleaned up my logfile entry a bit and we get.

More detail on what this means is available here. I was wondering about the date and saw this on their facebook page.

The GPS receiver on Emma has not failed, since separation we have had a harder time of commanding her (can do so at very high elevations for a short time) so at the moment one of the microcontrollers that generates part of the beacon… message needs to be reset, which is why the message shows old information. We are in the process of upgrading our groundstation so that we can more easily command Emma and make sure we can reset that microcontroller.

Thanks for your interest and collaboration,

The FASTRAC Team

By the looks of it, the Atmel AVR is still stuck. Hopefully the command team can get it sorted.