[amsat-bb] Re: Kursk files bug in telemetry software?

Mike Rupprecht mail at mike-rupprecht.de
Fri Aug 19 11:41:06 PDT 2011

Hi Roland,

there are several strange things with the KURSK files.

The first one is ARISSatTLM itself - a complete exp file should have a
length of 2048 bytes (piece file 1..4 = 504 bytes and piece file 5 = 32
An .exp file generated by ARISSatTLM is 1797 bytes - so the software
incorrectly joins the files together. But this is a known bug.

The last "valid" KURSK file was sent on Aug 13 and was created by ARISSat at
22:32:42 ( don't know the timezone but let's say UTC)

Since this date we receive always a KURKS file with this 944 MET timestamp.
If you look into this telemetry file you can see an internal timestamp
(created at BCD) with Nov 16, 12:47:09 UTC !

If you have a KURSK file with MET = 944 in your directory you will see no
new incoming data. 
This is why your workaround with the new directory works. I assume all your
new created directory contain this 944.x files.

So it seems, we will receive no new KURSK telemetry data from the satellite.

I don't know if there is a possibility to reset the experiment by a command
from a control station.

73, Mike

-----Ursprüngliche Nachricht-----
Von: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] Im
Auftrag von Roland Zurmely
Gesendet: Donnerstag, 18. August 2011 19:25
Betreff: [amsat-bb] Kursk files bug in telemetry software?

It seems that there is a bug in telemetry software,
perhaps created by the MET reset on each orbit?
Each day, recorded files always have the same names:
KURSK-944.1  KURSK-944.2 and so on...
So I did the following:
Every day end, I'm renaming the folder Kursk as kursk1, kursk2,...
So I have a folder per day. Next day, 
when the software is launched, it creates automaticaly
a new Kursk folder, that will contains the files from this day,
with the same names of past days, but in a new folder.

73 de Roland.
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