⚫  PRN 30 CNR is 39 dB/Hz. 
⚫  Column in  bright  red  means that the navigation data  of  the 
satellite are in use. 
⚫  PRN 1 CNR is 21 dB/Hz. 
⚫  Column  in  light  red  means  that  the  navigation  data  of  this 
satellite are not in use. 
⚫  Longitude (unit: degree) 
⚫  Latitude (unit: degree) 
⚫  Altitude (MSL) (unit: m) 
⚫  Altitude (EPH) (unit: m) 
⚫  Receiver Speed (unit: km/h) 
⚫  Horizontal Dilution of Precision 
⚫  Position Dilution of Precision 
⚫  Fix Mode 
⚫  UTC Date and Time 
⚫  Total Duration (unit: second)