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Starshine telemetry



I received today one frame telemetry from Starshine, and
analyzed it as follows.


Starshine   145.825MHz 9600bps FSK
[10-Oct-01  07:21:07UTC] <UI C>

STRSHN>APF302:>de N7YTK.0C00       : Header

29D3 0000 29C6 A40E 845A 0281 FC75 : Data from A/D Converter #1
1A96 84F0 58BF 7706 9402 028C FC8B : Data from A/D Converter #2
65D7 277C 3D21 298B A2FA 0271 FC45 : Data from A/D Converter #3
2802 900C A106 9395 854E 0286 FC65 : Data from A/D Converter #4
D294 829B 021E 6441 5400 0279 FC22 : Data from A/D Converter #5
6D86 4185 A549 6486 00B2 026B FC90 : Data from A/D Converter #6
---- ---- ---- ---- ---- ---- ----
 1    2    3    4    5   GAIN FULL
       Channel Number


F302 (hex) : time stamp = 62210 seconds = 17 h. 16 min. 50 sec.


----  ------  -------   ----  ------  -------   ----  ------  --------
Item  Data    Data      Item  Data    Data      Item  Data    Data
  #   Value   Meaning     #   Value   Meaning     #   Value   Meaning
----  ------  -------   ----  ------  -------   ----  ------  --------
  1   STRSHN  Source Addr
  2   AP04B2  Dest Addr incl.16-bit time stamp as above
  3   N7YTK   Gil Moore Call Sign
  4   0C      upper 8 bits of time stamp
  5   00      Echo of uplink command
  6   29D3    Ch 11      20   65D7    Ch 31      35   D294    Ch 51
  7   0000    Ch 12      21   277C    Ch 32      35   829B    Ch 52
  8   29C6    Ch 13      22   3D21    Ch 33      36   021E    Ch 53
  9   A40E    Ch 14      23   298B    Ch 34      37   6441    Ch 54
 10   845A    Ch 15      24   A2FA    Ch 35      38   5400    Ch 55
 11   0281    A/D1 Off   25   0271    A/D3 Off   39   0279    A/D5 Off
 12   FC75    A/D1 FS    26   FC45    A/D3 FS    40   FC22    A/D5FS
 13   1A96    Ch 21      27   2802    Ch 41      41   6D86    Ch 61
 14   84F0    Ch 22      28   900C    Ch 42      42   4185    Ch 62
 15   58BF    Ch 23      29   A106    Ch 43      43   A549    Ch 63
 16   7706    Ch 24      30   9395    Ch 44      44   6486    Ch 64
 17   9402    Ch 25      31   854E    Ch 45      45   00B2    Ch 65
 18   028C    A/D2 Off   32   0286    A/D4 Off   46   026B    A/D6 Off
 19   FC8B    A/D2 FS    33   FC65    A/D4 FS    47   FC90    A/D6 FS
----  ------  -------   ----  ------  -------   ----  ------  --------



Starshine 3 Data Channel Summary for Electronics Board
---  ---- ---- ------  --------------------  ---------  ----  --------
 Ch  Gain DC   Buffer  Signal                 Range      W6   Source
 #        Offset       Measurement            (mV)      Pin# (Con-Rin)

 11  16   +16.7   -    IPS Current #2        -2.5/40     5    W10-5
 12  64   none    -    Temperature #5         7.8/28     22   W18-6
 13  16   +16.7   -    IPS Current #5        -2.5/40     21   W18-5
 14  32   +66.7   -    String Current #6     -41/0       20   W16-8
 15   1   none   yes   IPS Battery V(3.0)#6   1000/1500  19   W16-7

 21  32   none    -    Si Test Cell cntl #7  ~50         25   W20-5
 22   1   none   yes   IPS Battery V(3.0)#2   1000/1500   7   W10-7
 23  32   +66.7   -    String Current #5     -41/0       24   W18-8
 24  64   none    -    Temperature #2         7.8/28      6   W10-6
 25   1   none   yes   IPS Battery V(3.0)#5   1000/1500  23   W18-7

 31  64   none    -    Temperature #4         7.8/28     10   W12-6
 32  32   none    -    Si Test Cell Nusil#7  ~50         27   W20-7
 33  16   +16.7   -    IPS Current #4        -2.5/40      9   W12-5
 34  32   none    -    Si Test Cell DC935 #7 ~50         26   W20-6
 35  32   +66.7   -    String Current #2     -41/0        8   W10-8

 41  16   +16.7   -    IPS Current #3        -2.5/40     13   W14-5
 42  32   +66.7   -    String Current #8     -41/0       29   W22-8
 43  32   +66.7   -    String Current #4     -41/0       12   W12-8
 44  32   +66.7   -    String Current #7     -41/0       28   W20-8
 45   1   none   yes   IPS Battery V(3.0)#4   1200/2100  11   W12-7

 51   1   none    -    PMAD Battery V         1800/2070  32   W8-13
 52   1   none   yes   IPS Battery V(3.0)#3   1200/2100  15   W14-7
 53                    Not Used                          31
 54  64   none    -    Temperature #3         7.8/28     14   W14-6
 55  32   +66.7   -    String Current #1     -41/0       30   W24-8

 61   1   none    -    PMAD Battery I         500/1600   33   W8-14
 62  16   +16.7   -    IPS Current #6        -2.5/40     17   W16-5
 63  32   +66.7   -    String Current #3     -41/0       16   W14-8
 64  64   none    -    Temperature #6         7.8/28     18   W16-6
 65   8   none    -    Electronics I          14/200
---  ---- ---- ------  --------------------  ---------  ----  --------

Temperature Sensor powered from IMPS in String 5 is on cell 66
Temperature Sensor powered from IMPS in String 2 is on the main battery
Temperature Sensor powered from IMPS in String 4 is on the string board
Temperature Sensor powered from IMPS in String 3 is on cell 47
Temperature Sensor powered from IMPS in String 6 is on cell 4

Data is 16 bit resolution (65536 counts) on a 2.5 V full scale, each
set of 5 channels has a separate reference voltage and zero offset
reading.  Each received data point is a 4 byte hex code value
(FFFF = 65535).  The DC offset is a percentage of full scale and is
subtracted from the channel data and then divided by the gain to get
the signal level counts as a fraction of the full scale counts.


Refer to the next web site for more informations,

 http://epulation.com/starshine/starshine3/

 -Advance Technology Experiment for the Starshine 3 Satellite (.pdf)
 -Starshine 3 Computer/Data Acquisition Summary
 -Starshine 3 Computer/Data Acquisition Block Diagram


----------------------------------------------
Name : JE9PEL/Mineo Wakita, JAMSAT member
Mail : ei7m-wkt@asahi-net.or.jp
URL  : http://www.ne.jp/asahi/hamradio/je9pel/
QTH  : Yokohama Japan, GL:PM95TJ
Date : Oct 10, 2001
----------------------------------------------


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