05.03.2013 Views

Data Hacking

Data Hacking

Data Hacking

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

200 Part III — <strong>Data</strong> <strong>Hacking</strong><br />

hhmmss.ss UTC of position fix (time)<br />

A <strong>Data</strong> status (A = OK, V = Void)<br />

1111.11 Destination waypoint latitude<br />

e N or S (for latitude)<br />

yyyyy.yy Destination waypoint longitude<br />

f E or W (for longitude)<br />

x.x Speed over ground made good (measured in nautical miles)<br />

y.y Track made good (measured in degrees True)<br />

ddmmyy UT date<br />

z.z Magnetic variation (easterly variation is subtracted from True course)<br />

a E or W (for magnetic variation)<br />

*hh Checksum<br />

GGA (Global Positioning System Fix <strong>Data</strong>)<br />

This sentence provides 3D location and accuracy data.<br />

$GPGGA,hhmmss.ss,llll.ll,e,yyyyy.yy,f,a,bb,x.x,y.y,M,z.z,M,s.s,<br />

####*hh<br />

hhmmss.ss UTC of position fix (time)<br />

1111.11 Destination waypoint latitude<br />

e N or S (for latitude)<br />

yyyyy.yy Destination waypoint longitude<br />

f E or W (for longitude)<br />

a Fix quality:<br />

0 = Invalid<br />

1 = GPS fix (SPS)<br />

2 = DGPS fix<br />

3 = PPS fix<br />

4 = Real Time Kinematic<br />

5 = Float RTK<br />

6 = Estimated (dead reckoning)<br />

7 = Manual input mode<br />

8 = Simulation mode<br />

bb Number of satellites in use<br />

x.x Horizontal error (dilution or precision)<br />

y.y,M Antenna height in meters<br />

z.z,M Height of geoid (mean sea level) in meters

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!