Cute-1.7 + APD Laboratory for Space Systems

Cute-1.7 + APD II Project - FM Telemetry Format -

Small Satellite Program (SSP)

Laboratory for Space Systems (LSS), Tokyo Institute of Technology

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Satellite Status

Satellite Status
Byte Bit Name Contents
1
(MSB)
1 FM Mode FM Packet Mode Flag
2
3
4
5 FM Interval Interval of Each FM Packet Transmission
6
7
8 FM Send FM Packet Transmitting Status
2 1 No. of Pictures
(Lower)
Lower 3 Bits of the Number of Pictures Stored in a SD Card
2
3
4 Amateur Service Mode Operational Mode of the Amateur Service
5
6
7 FM Protocol Modulation Mode and Protocol of
8
3 1 APD 3.3V Bus B Power Status of APD Module 3.3V Bus B
2 APD 3.3V Bus A Power Status of APD Module 3.3V Bus A
3 Magnetic Sensor Power Status of Magnetic Sensor
4 Magnetic Torquer Power Status of Magnetic Torquer
5 '0'  
6 No. of Pictures
(Upper)
Upper 3 Bits of the Number of Pictures Stored in a SD Card
7
8
4
(LSB)
1 Packet Frame No. Frame Number of FM Packet
2
3 FM Tx Power Status of DJ-C5 for FM Downlink
4 Amateur Service Rx Power Status of TH-59 for Amateur Service Uplink
5 CW Tx Power Status of CW Transmitter for Beacon Downlink
6 PDA Power Status of PDA
7 DAQ Power Status of DAQ
8 APD Main Bus Power Status of APD Module Main Bus
 
Total 4bytes


FM Mode


FM Mode
1 2 3 4 Description
0 0 0 0 Normal 3Frames
1 Normal 2Frames
1 0 Normal 1Frame
1 (Reserved)
1 0 0 (Reserved)
1 Picture
1 0 Compacted Sensor Data
1 Main Update
1 0 0 0 File Download
1 Complete Sensor Data
1 0 DAQ Message
1 Comm. House Keeping
1 0 0 Comm. FRAM Read
1 Comm. Message
1 0 (Reserved)
1 Others(Including Acknowledge)


FM Interval


FM Interval
1 2 3 Description
0 0 0 1sec
1 2sec
1 0 3sec
1 5sec
1 0 0 10sec
1 30sec
1 0 60sec
1 Custom(Default:60sec)


FM Status


FM Send
1 Description
0 No FM Packet Generation (Excl. Ack)
1 Periodic FP Packet Generation


Amateur Service Mode


Amateur Service Mode
1 2 3 Description
0 0 0 Disabled
1 Enabled Only Downlink
1 0 Enabled Only Uplink
1 Fully Enabled
1 0 0 -
1 Only Administrator
1 0 Only Administrator
1 Only Administrator


FM Protocol


FM Protocol
1 2 Description
0 0 AX.25 / AFSK
1 AX.25 / GMSK
1 0 SRLL / AFSK
1 SRLL / GMSK


Power Status


Power Status
1 Description
0 OFF
1 ON


Packet Frame Number


Packet Frame Number
1 2 Description
0 0 Frame 0
1 Frame 1
1 0 Frame 2
1 -

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