What are the fields in GPS log string?

GPS: 770000, 1, 10, 41.0994610, -92.4471590, 0.0000, 711.8800, 702.9700, 19.9400, 195.1000

 

How do I convert the timestamp?  Is altitude in meters?  Is that the 711 or 702?

 

19.9400:  This speed?  In mph?

195.1000: Heading?

 

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  • Here are log details that I have found. Probably someone knows these better?

    This can also help: http://diydrones.com/profiles/blogs/better-log-analyzer-for-apm

     

    *GPS
    Time  , seconds from UTC midnight * 1000
    Fix     , has fix? 0=no, 1=yes
    Sats   , How many satellites found
    Lat     , Latitude in degrees
    Long  , Longitude in degrees
    MixAlt , Altitude in meters, above sea level, calculated from pressure sensor
    GPSAlt , Altitude in meters, above sea level, calculated from gps
    GRSpeed ,Ground speed m/s
    CRS  , Course in degrees


    *ATT
    Roll
    Pitch
    Yaw


    *CTUN
    ServoRoll
    nav_roll
    roll_sensor
    ServoPitch
    nav_pitch
    pitch_sensor
    ServoThrottle
    ServoRudder
    AN4


    *NTUN:

    Yaw
    WPdist
    TargetBear
    NavBear
    AltErr
    AS
    NavGScaler


    *PM
    looptime
    Maincount
    G_Dt_max
    GyroSat
    adcconstr
    renorm_sqrt
    renorm_blowup
    gps_fixcount
    imu_health


    *CMD
    num
    wp_id
    wp_pl
    wp_alt
    wp_lat
    wp_lng


    *MOD
    mode

  • More specifically,

     

    515000,1,5,41.099739,-92.449402,0,0.71,264.91,0.2,259.85

    516000,1,5,41.099762,-92.449371,0,1.16,258.45,0.22,259.85

    517000,1,5,41.09977,-92.449402,0,1.16,261.17,0.23,259.85

     

    Is that every 10 seconds?

     

     

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