Tuesday 23 April 2013

More PhoneSat pictures and other packets

Had chance to process the 14:05BST PhoneSat pass IQ file and have got some more image pieces (again I have scaled them up from the original 20 x 15 pixel size)



Also decode a few more data packets,  from Graham and Bell the PhoneSat 1.0 Satellites


Also got a sensor packet from Alexandra (the PhoneSat 2.0 Beta Satellite)

These packets not be encoded; and are plain ASCII characters. There are 5 types of packet:

Sensors from the phone
  • Time: unix time time in milli seconds.
  • Reboot: number of reboots of the phone.
  • Counter: number of packets sent since the beginning of the mission.
  • Packet type: for this packet will be sensors from the phone (1).
  • Phase: phase in which the satellite is (we have 3 phases).
  • Compass: magnetic field value for X, Y, Z axes from the phone sensor in nanoTesla.
  • Gyro: spin rate for X, Y, Z axes from the phone sensor in deg/sec.
  • Accel: accelerometer value of X, Y, Z axes from the phone sensor in m/sec2
  • Format: [Time, Reboot, Counter, Packet Type, Phase, CompassX, CompassY, CompassZ, GyroX, GyroY, GyroZ, AccelX, AccelY, AccelZ]
My packet was
[1262348062776;11;489;1;3;30.4;38.8;13.2;80.2;-5.7;-68.5;-0.5;0.1;-0.6]

So 1262348062776 milliseconds (this doesn't look right, gives 01 January 2010 12:14:23!)
Reboot number 11
489 packets
Packet type 1
Phase 3
Compass X = 30.4, Y = 38.8, Z = 13.2
Gyro X = 80.2, Y = -5.7, Z = -68.5
Accel X =  -0.5, Y=  0.1, X= -0.6

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