ALM - GPS Almanac Data

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 $--ALM,x.x,x.x,xx,x.x,hh,hhhh,hh,hhhh,hhhh,hhhhhh,hhhhhh,hhhhhh,hhhhhh,hhh,hhh,*hh<CR><LF>

 Field Number: 
  1) Total number of messages
  2) Message Number
  3) Satellite PRN number (01 to 32)
  4) GPS Week Number :
  Date and time in GPS is computed as number of weeks from 6 January 1980 plus
      number of seconds into the week.
  5) SV health, bits 17-24 of each almanac page
  6) Eccentricity
  7) Almanac Reference Time
  8) Inclination Angle
  9) Rate of Right Ascension
  10) Root of semi-major axis
  11) Argument of perigee
  12) Longitude of ascension node
  13) Mean anomaly
  14) F0 Clock Parameter
  15) F1 Clock Parameter
  16) Checksum