UT1 WWW.SPACE.T.U-TOKYO.AC.JP
The URL of ISSL.

UT2 [AA] [BB] [CC]
OBC (On-Board Computer) Time. XI-IV counts time with 3 bytes. 1 count of OBC time nearly equals 1 second. Maximum value is 0xFFFFFF, which means approximately 191 days.

UT3 [DD] [EE] [FF] [GG]
[DD] [EE]: Status and flags including uplink counter, camera overwrite status, and charge status, etc.
[FF]: Status and flags including OBC survival flag, data sending status, etc.
[GG]: AD conversion value of RSSI (Received Signal Strength Indicator). This is the maximum RSSI value while XI-IV is sending UT1 to UT3.

UT4 [HH] [II] [JJ]
[HH]: AD conversion value of the voltage of secondary batteries.
[II]: AD conversion value of the voltage of solar array.
[JJ]: AD conversion value of the temperature of secondary batteries.

UT5 [K][L] [M][N] [O][P]
Solar array current measurement data received from OBC. This segment shows only upper 4-bit data. Whole data amount becomes 3 bytes (= 4 bits * 6 panels = 24 bits).
[K]: Current of +X Panel, [L]: Current of -X Panel, [M]: Current of +Y Panel,
[N]: Current of -Y Panel, [O]: Current of +Z Panel, [P]: Current of -Z Panel

UT6 [Q][R] [S][T] [U][V] [W][X] [YY]
Temperature data received from OBC. This segment shows only upper 4-bit data. The maximum value of RSSI while sending UT4 to UT6 is also included. Whole data amount becomes 10 bytes (=4 bits * (6 panels + secondary batteries + transmitter) + 1 byte * RSSI).
[Q]: Temperature of +X Panel, [R]: Temperature of -X Panel, [S]: Temperature of +Y Panel
[T]: Temperature of -Y Panel, [U]: Temperature of +Z Panel, [V]: Temperature of -Z Panel
[W]: Temperature of secondary batteries, [X]: Temperature of FM transmitter
[YY]: AD conversion value of RSSI. This is the maximum RSSI value while XI-IV is sending UT4 to UT6.

Transmission data format
Binary data is given in hexadecimal. CW transmitter sends high-order bits and low-order bit in twice.
For example, the data "0xc0" is separated into "c" and "0".

XIV1 [AA] [BB] [CC]
OBC (On-Board Computer) Time. XI-V counts time with 3 bytes. 1 count of OBC time nearly equals 1 second. Maximum value is 0xFFFFFF, which means approximately 191 days.

XIV2 [DD] [EE] [FF] [GG]
[DD] [EE]: Status and flags including uplink counter, camera overwrite status, and charge status, etc.
[FF]: Status and flags including OBC survival flag, data sending status, etc.
[GG]: AD conversion value of RSSI (Received Signal Strength Indicator). This is the maximum value of RSSI while XI-V is sending XIV1 to XIV2.

XIV3 [HH] [II] [JJ]
Temperature and voltage received from communication subsystem. It may be different from the data of XIV6 because of the accuracy.
[HH]: AD conversion value of the voltage of secondary batteries.
[II]: AD conversion value of the voltage of solar array.
[JJ]: AD conversion value of the temperature of secondary batteries.

XIV4 [KK] [LL] [MM] [NN] [OO] [PP]
Solar array current measurement data received from OBC.
[KK]: Current of +X Panel, [LL]: Current of -X Panel, [MM]: Current of +Y Panel
[NN]: Current of -Y Panel, [OO]: Current of +Z Panel, [PP]: Current of -Z Panel

XIV5 [QQ] [RR] [SS] [TT] [UU] [VV]
Temperature data received from OBC.
[QQ]: Temperature of +X Panel, [RR]: Temperature of -X Panel, [SS]: Temperature of +Y Panel,
[TT]: Temperature of -Y Panel, [UU]: Temperature of +Z Panel, [VV]: Temperature of -Z Panel

XIV6 [WW] [XX] [YY] [ZZ] [GG]
Temperature and voltage received from OBC.
[WW]: Temperature of FM transmitter
[XX]: voltage of secondary batteries
[YY]: voltage of solar array
[ZZ]: Temperature of secondary batteries
[GG]: the maximum value of RSSI while XI-V is sending XIV3 to XIV6.

XIV7 XXXXX XXXXX XXXXX XXXXX XXXXX
Messages from XI-V.

Transmission data format
Binary data is given in hexadecimal. CW transmitter sends high-order bits and low-order bit in twice.
For example, the data "0xc0" is separated into "c" and "0".

XIC01 a b V c d I e f S g h i j k l T m n o p q r s t  u v w x y
Status and flags of XI-V including voltage, current, temperature etc.

a : Number of command reception (1byte)
b : OBC time (6bytes)

c : Voltage of secondary batteries (2bytes)
d : Voltage of solar array (2bytes)

e : Charging current (2bytes)
f : Consumption current of CDC (2bytes)

g : Solar array current of +X Panel (2bytes)
h : Solar array current of -X Panel (2bytes)
i : Solar array current of +Y Panel (2bytes)
j : Solar array current of -Y Panel (2bytes)
k : Solar array current of +Z Panel (2bytes)
l : Solar array current of -Z Panel (2bytes)

m : Temperature of +X Panel (2bytes)
n : Temperature of -X Panel (2bytes)
o : Temperature of +Y Panel (2bytes)
p : Temperature of -Y Panel (2bytes)
q : Temperature of +Z Panel (2bytes)
r : Temperature of -Z Panel (2bytes)
s : Temperature of secondary batteries (2bytes)
t : Temperature of FM transmitter (2bytes)

u : Status flags 1
  (0: LSB -- 7: MSB)
  0: Telemetry mode (0:detail 1:rough)
  1-7: Overwrite status of camera ROMs (0:enable 1:disable)
v : Status flags 2
  (0: LSB -- 7: MSB)
  0-4: Uplink counter
  5-7: Camera capturing counter
w : Status flag 3
  (0: LSB -- 7: MSB)
  0-2: SEL reset counter
  3: Antenna deployment (0:Not deployed 1:Deployed)
  4-5: CW duty ratio (0:Zero 1:Smaller than default value 2:Default value 3:Larger than default value)
  6: Reset reason (0:Normal 1:Watch Dog Timer)
  7: Charging status (0:Normal charging 1:Trickle charging)
x : Command processing status
  (0: LSB -- 7: MSB)
  0: Tx command
  1: CW command
  2: Not Used (0)
  3: Camera command
  4: Antenna command
  5: Not Used (0)
  6: Serial communication command
y : Operating status of camera (0:OFF 1:ON)

Data conversion formula from data to engineering values are as follows:

c: Voltage of secondary batteries
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
Voltage=data/255*4.5 [V]

<Example>
voltage=0x0f=15
voltage=15/255*4.5=0.26 [V]

d: Voltage of solar array
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
voltage=data/255*4.5*74.9/18.7 [V]

<Example>
voltage=0xa0=160
voltage=160/255*4.5*74.9/18.7=11.3 [V]

e: Charing current
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
Current=data/255*4.5/100 [mA]

f: CDC current consumption
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
Current=data/255*4.5*392 [mA]

g-l: Solar array generating current
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
  +X Panel=data*2.3957+2.7037 [mA]
  -X Panel=data*2.3823+2.3217 [mA]
  +Y Panel=data*2.4234+1.6915 [mA]
  -Y Panel=data*2.3724+3.2306 [mA]
  +Z Panel=data*2.3840+2.1696 [mA]
  -Z Panel=data*2.4341+4.7714 [mA]

m-r: Panel temperature
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
  +X Panel=data*0.5896+65.614 [°C]
  -X Panel=data*0.5916+66.133 [°C]
  +Y Panel=data*0.5862+65.813 [°C]
  -Y Panel=data*0.5846+66.280 [°C]
  +Z Panel=data*0.5880+64.903 [°C]
  -Z Panel=data*0.5932+66.483 [°C]

s: Temperature of secondary batteries
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
Temperature=data*0.5948-67.203 [°C]

t: Temperature of FM transmitter
Data is given in hexadecimal. Change the hexadecimal number to the decimal number, and substitute the data into the following equation.
Temperature=data*0.5811-67.055 [°C]