SOHLA

SOHLA-1 telemetry analysis

This page is a continuance of SOHLA-1 Earth picture success and SOHLA-1 telemetry data.


I could reappear 'JL3YUK0JL3YUS0' in the commentary page of the Ground Station of SOHLA-1,
http://www.ne.jp/asahi/hamradio/je9pel/sohlatlm.htm (English by JE9PEL)
http://www.sssrc.aero.osakafu-u.ac.jp/HP_M/html/data.html (Japanese by Ground Station)


 '94 98 66 B2 AA 96 60 94 98 66 B2 AA A6 61'

  94 : 10010100 -> 1001010 -> 4A -> J
  98 : 10011000 -> 1001100 -> 4C -> L
  66 : 01100110 -> 0110011 -> 33 -> 3
  B2 : 10110010 -> 1011001 -> 59 -> Y
  AA : 10101010 -> 1010101 -> 55 -> U
  96 : 10010110 -> 1001011 -> 4B -> K
  60 : 01100000 -> 0110000 -> 30 -> 0
  94 : 10010100 -> 1001010 -> 4A -> J
  98 : 10011000 -> 1001100 -> 4C -> L
  66 : 01100110 -> 0110011 -> 33 -> 3
  B2 : 10110010 -> 1011001 -> 59 -> Y
  AA : 10101010 -> 1010101 -> 55 -> U
  A6 : 10100110 -> 1010011 -> 53 -> S
  61 : 01100001 -> 0110000 -> 30 -> 0


Procedure,
(1) Save a KISS file automatically using WiSP program.
(2) Open this KISS file by a binary editor.

Example KISS file,
2009-04-04-04_sohla.kss



It is the data of FSS after '02' of the telemetry ID.
The data of FSS consist of 69 binary data from the mode status to the end bit.
All the numerical value are the hexadecimal number '0x**'.
Cf. http://www.ne.jp/asahi/hamradio/je9pel/sohlatlm.htm



SOHLA-1 Telemetry Decoder

Developed an official version by DK3WN / Mike Rupprecht.
Download: sohla.zip  Version 0.27B, 08 April 2009




I analyzed the above KISS file, 2009-04-04-04_sohla.kss as follows.


HTRX mode



FSS normal mode



FSS normal algorithm 2 mode



SOHLA-1 KISS processed

You need process KISS file due to run 'SOHLA-1 Telemetry Decoder' using
a binary editor. And you need drag and delete a part without the need
with a mouse by an editor. The hexadecimal number of the beginning of
the KISS file is as follows.

  C0 00 94 98 66 B2 AA 96 60 94 98 66 B2 AA A6 61
so,
  60 00 4A 4C 33 59 55 4B 30 4A 4C 33 59 55 53 30
      .  J  L  3  Y  U  K  0  J  L  3  Y  U  S  0

We are now developing this software not to need to process it.

2009-04-05-03_sohla.kss
2009-04-05-03_sohla.dmp




SOHLA-1 Perfect Decoder!!

The perfect version 'SOHLA-1 Telemetry Decoder Ver1.04' was developed by DK3WN.
The processing of the KISS file is unnecessary. Even if any kind of dust is mixed,
the filter works automatically and the telemetry analysis is possible instantly.
The hexadecimal part of FSS data are stored as a dmp file automatically and the
part of Message are stored as a tlm file automatically. The number of HTRX data
are shown at the window lower right, and the analysis numerical value are shown
in the window upper section.  Download: SOHLA-1 Telemetry Decoder Ver1.04


How to measure the spin rate of SOHLA-1
http://www.ne.jp/asahi/hamradio/je9pel/spinrat2.htm