UO-11 V_beacon WOD
I analyzed the WOD data that I got UO-11's V-beacon,
145.825MHz AFSK, at 19 Sep 2001 with a sound recorder
'SNDREC32.EXE' and a decoding program 'UO11DEM.EXE'.
Then Good Characters Received 354
Bad Characters Received 52
Total Characters Received 406 ie. Good/Total = 87%.
The following data is only Good Characters 100% in this WOD,
http://www.ne.jp/asahi/hamradio/je9pel/10919u11.wav
05AE5533103905FC09
05B64873193325FC23
05BE4043223325FC95
05C63363163895FC11
05CE3242994705FCB1
05D63672785355BCC1
05DE4402565575FCDF
05E65112395275FC52
05EE5422294605FCF1
05F65232263915FCDB
05FE4682283525FCCC
06063922283625FC8A
060E3472234115FC22
06163452114715FCCE
061E3881885025FC7B
062E4861634885FC0C
06364881574455FC51
063E4691551555FC5D
I calculated only one line '05AE5533103905FC09' as follows.
Line Number = 05AE (date/time for the start of the WOD)
Channel 1 = 553 (X-axis magnetometers)
Channel 2 = 310 (Z-axis magnetometers)
Channel 3 = 390 (Y-axis magnetometers)
Channel 4 = 5FC (Status)
Check-sum = 09 (Check-sum)
Line Number is hexa-decimal numbers,
ie. 05AE = 0*16^3 + 5*16^2 + 10*16 + 14 = 1454
1454 * 4.82 = 7008 [seconds]
Channel 1,2,3 is decimal numbers as shown the updated equations.
Bx = 0.152*N - 69.8 = 0.152*553 - 69.8 = 14.26
Bz = 0.146*N - 65.3 = 0.146*310 - 65.3 = -20.04
By = 0.155*N - 71.0 = 0.155*390 - 71.0 = -10.55
Engineering units of these magnetic flux is [micro Tesla],
ie. [10^(-6) * Wb/(m^2)] = [10^(-6) * (kg/(s^2 * A))]
Total magnetic flux is B = SQRT(Bx*Bx+By*By+Bz*Bz),
B = SQRT(203 + 402 + 111) = 26.8 [micro Tesla]
The 4th status channel is hexa-decimal numbers,
5FC = 5*16^2 + 15*16 + 12 = 1532
[Supplement]
Channels 0 - 59 are analog channels. Channels 1, 2, 3 in these
channels are shown the X, Z, Y magnetometers. The above three
equations may be more update than the equations in the list below.
Channels 60 - 67 are the status channels, each bit represents an
ON/OFF item. There are 8 status channels, each of 12 bits.
Channel 60 is first in this list . The MS bit comes first for
each channel. Thus channel 61 is bits 12 to 23.
Now I analized the above '5FC' of the 4th status channel 61.
The number '5FC' in hexadecimal is '010111111100' in binary.
The MS bit comes first for each channel in the list below.
Therefore,
Channel 61
Bit Meaning Data 1 0
----- ---------------- ---- ------------- -------------
12 boom pyros 0 Arm * Safe
13 boom pyros 1 * Hold Fire
14 boom deployment 0 Arm * Safe
15 boom deployment 1 * Hold Deploy
16 boom deployment 1 * Retract Extend
17 Magnetorquers 1 * Arm Safe
18 X Magnetorquer 1 * Off On
19 Y Magnetorquer 1 * Off On
20 Z Magnetorquer 1 * Off On
21 Magnetorquers 1 * Forw Rev
22 435 MHz PSK 0 NRZIC * NRZI
23 2401 MHz PSK 0 NRZIC * NRZI
----------------------------------------------------------------
Date: Sun, 23 Sep 2001 09:03:16 +0100
From: Clive Wallis [clivew@zetnet.co.uk]
To: Mineo Wakita [ei7m-wkt@asahi-net.or.jp]
Subject: Re: UO11WOD
Hi Mineo,
Thanks for your message.
> What is [unit] of the 4th status channel ?
The status channel in this WOD is channel 61. Channels 60 - 67 are
status channels, each bit represents an ON/OFF item. You won't see
much change in this channel. It picks up the magnetorguer firings,
which only last for one line. There are about three firings in the
WOD of 4000 lines!
Full information about decoding UO-11 telemetry & WOD is given in
the book-
Decoding the Telemetry from the Amateur Satellites, by Gould Smith
WA3SMX. It should be available from AMSAT-NA or AMSAT-UK.
Details are also in Journal IERE Supplement (on UoSAT-2) to Vol 57
No 5 Sept/Oct 1987.
I have put some details of the telemetry calibrations, including the
status, at the end of this e-mail. There are 8 status channels, each
of 12 bits. Channel 60 is first in this list . The MS bit comes first
for each channel. Thus channel 61 is bits 12 to 23.
Bit 20, Z magnetorquer is the one most likely to change.
Hope this helps.
73 Clive G3CWV
Hitchin, North Hertfordshire, UK.
-------------------------------------
UoSAT-2 TELEMETRY CHANNEL ALLOCATIONS
ANALOG CHANNELS.
Channel Name Equation
------- ------------------------------ --------
0 Array -Y Curr. (mA) (N * -1.9)+980.4
1 Nav. Mag X (uT) (N * 0.1485)-68
2 Nav. Mag Z (uT) (N * 0.1523)-69.3
3 Nav. Mag Y (uT) (N * 0.1507)-69
4 Sun Sensor 1 (V) (N * 0.01)+0
5 Sun Sensor 2 (V) (N * 0.01)+0
6 Sun Sensor 3 (V) (N * 0.01)+0
7 Sun Sensor 4 (V) (N * 0.01)+0
8 Sun Sensor 5 (V) (N * 0.01)+0
9 Sun Sensor 6 (V) (N * 0.01)+0
10 Array +Y Curr. (mA) (N * -1.9)+980.4
11 NavMag wing Temp (Deg C) (N * -0.289855)+95.6522
12 Horizon Sensor (V) (N * 0.01)+0
14 DCE RAMCurrent (mA) (N * 0.1493)-10.5075
15 DCE CPU Current (mA) (N * 0.5)-93.55
16 DCE Gen.Mem.Curr (mA) (N * 0.4762)-57.7619
17 +X Array Temp. (Deg C) (N * -0.2)+96.1
18 +Y Array Temp. (Deg C) (N * -0.2)+96.1
19 +Z Array Temp. (Deg C) (N * -0.2)+96.1
20 Array -X Curr. (mA) (N * -1.9)+980.4
21 +10V Current (mA) (N * 0.97)+0
22 +10V Voltage (V ) (N * 0.015)+0
23 P/W logic Curr (mA) (N * 0.14)+0
24 P/W Geiger Curr (mA) (N * 0.21)+0
25 El.Sp.+10V Curr (mA) (N * 0.096)+0
26 El.Sp.-10V Curr (mA) (N * 0.093)+0
27 -X Array Temp. (Deg C) (N * -0.2)+96.1
28 -Y Array Temp. (Deg C) (N * -0.2)+96.1
29 -Z Array Temp. (Deg C) (N * -0.2)+96.1
30 Array +X Curr. (mA) (N * -1.9)+980.4
31 -10V Current (mA) (N * 0.48)+0
32 -10V Voltage (V ) (N * -0.036)+0
33 1802 +10V Curr (mA) (N * 0.21)+0
34 Digit. +5V Curr (mA) (N * 0.13)+0
35 145MHz Power (mW) (N * 2.5)-275
36 145MHz Current (mA) (N * 0.22)+0
37 145 MHz TX Temp (Deg C) (N * -0.2)+96.1
38 Cmnd Dec Temp. (Deg C) (N * -0.2)+96.1
39 TLM system Temp. (Deg C) (N * -0.2)+96.1
40 Array Volts (30) (V) (N * 0.1)-51.6
41 +5V Current (mA) (N * 0.97)+0
42 +5V Voltage (V) (N * 0.0084)+0
43 DSR +5V Current (mA) (N * 0.21)+0
44 Command RX Curr (mA) (N * 0.92)+0
45 435MHz Power (mW) (N * 2.5)-200
46 435MHz Current (mA) (N * 0.44)+0
47 435 MHz TX Temp (Deg C) (N * -0.2)+96.1
48 P/W Temp. (Deg C) (N * -0.2)+96.1
49 BCR Temp. (Deg C) (N * -0.2)+96.1
50 Battery Current (mA) (N * 8.8)-4514.4
51 +14V Current (mA) (N * 5)+0
52 Battery Voltage (V) (N * 0.021)+0
53 Batt Cell Volt. (V) (N * 0.0053)+0
54 TLM +10V Curr (mA) (N * 0.02)+0
55 2.4MHz Power (mW) (N * 0.01)+0
56 2.4MHz Current (mA) (N * 0.45)+0
57 Battery Temp. (Deg C) (N * -0.2)+96.1
58 2.4GHz tx Temp. (Deg C) (N * -0.2)+96.1
59 CCD camera Temp. (Deg C) (N * -0.2)+96.1
DIGITAL STATUS POINTS
Bit Meaning 1 0
----- ---------------- ------------- -------------
0 145 MHz power On Off
1 435 MHz power On Off
2 2401 MHz power On Off
3 TLM mode select Dwell Run
4 TLM dwell load On Off
5 TLM dwell sourc Computer Gnd
6 OBC power On Off
7 OBC error count 1 0
8 OBC error count 1 0
9 OBC bootstrap PROM UART
10 OBC error count 1 0
11 OBC bootstrap B A
12 boom pyros Arm Safe
13 boom pyros Hold Fire
14 boom deployment Arm Safe
15 boom deployment Hold Deploy
16 boom deployment Retract Extend
17 Magnetorquers Arm Safe
18 X Magnetorquer Off On
19 Y Magnetorquer Off On
20 Z Magnetorquer Off On
21 Magnetorquers Forw Rev
22 435 MHz PSK NRZIC NRZI
23 2401 MHz PSK NRZIC NRZI
24 Magnetorquers Low High
25 Digit.power On Off
26 CCD power On Off
27 CCD int.period 1 0
28 CCD int.period 1 0
29 CCD amp gain 1 0
30 CCD amp gain 1 0
31 DSR power On Off
32 DSR mode Write Read
33 DSR mode Run Reset
34 Geiger-A power On Off
35 Geiger-B power On Off
36 Geiger-C power On Off
37 Sptr EHT power On Off
38 DCE expt. power On Off
39 DCE Run Reset
40 DCE PROM select B A
41 DCE clock rate 1.8 0.9
42 NavMag power On Off
43 SpaceDust power On Off
44 Status cal 1 0
45 BCR status B A
46 435 MHz mod PSK AFSK
47 2401 MHz mod PSK AFSK
48 OBC serial comm Enab Disab
49 DCE serial comm Enab Disab
50 144MHz channel B A
51 438 MHz channel B A
52 1269 MHz channel B A
53 Watchdog Enab Disab
54 Watchdog reset Reset Run
55 145MHz data sel 1 0
56 145MHz data sel 1 0
57 145MHz data sel 1 0
58 145MHz data sel 1 0
59 145MHz data sel 1 0
60 145MHz data sel 1 0
61 145MHz data rate 1 0
62 145MHz data rate 1 0
63 435MHz data rate 1 0
64 435MHz data rate 1 0
65 435MHz data rate 1 0
66 P/W counter ctrl Reset Count
67 VHF/UHF lock prot Enab Disab
68 Status cal 1 0
69 144MHz RX data Yes No
70 438MHz RX data Yes No
71 1269MHz RX data Yes No
72 P/W plate ctrl 1 0
73 P/W plate ctrl 1 0
74 P/W plate ctrl 1 0
75 Space Dust 1 0
76 Space Dust 1 0
77 Space Dust 1 0
78 Space Dust 1 0
79 Space Dust 1 0
80 Space Dust 1 0
81 Space Dust 1 0
82 Space Dust 1 0
83 DSR write compl Yes No
84 1802 CWO output 1 0
85 OBC TLM port 1 0
86 OBC TLM port 1 0
87 OBC TLM port 1 0
88 OBC TLM port 1 0
89 OBC TLM port 1 0
90 OBC TLM port 1 0
91 OBC TLM port 1 0
92 OBC TLM port 1 0
93 OBC TLM port 1 0
94 OBC TLM port 1 0
95 OBC TLM port 1 0
------------ End of list ------------
[Reference]
http://www.users.zetnet.co.uk/clivew/
G3CWV, Clive Wallis
----------------------------------------------
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 : Sep 27, 2001
----------------------------------------------
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