Ashtech Z-sensor Spezifikationen Seite 171

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Command/Response Formats 151
Commands
$PASHQ,DAL,c
Query decimal almanac where c is the optional output serial port.
Example: $PASHQ,DAL <enter>
$PASHR,DAL
There will be one response message for each satellite in the GPS constellation. The
response message is in the form:
$GPDAL,d1,d2,f3,d4,f5,f6,f7,f8,f9,f10,f11,f12,d13*cc <enter>
Table 6.81: DAL Message Structure
Parameters Description Range
d1 Satellite PRN number 1 - 32
d2 Satellite health 0 - 255
f3 e. Eccentricity ±9.9999999E±99
d4 toe, reference time for orbit (in seconds) 0 - 999999
f5 i0, inclination angle at reference time (semicircles) 0 - 9.9999999E±99
f6 omegadot, the rate of right ascension (semicircles/sec) ±9.9999999E±99
f7 roota, the square root of semi-major axis (meters 1/2) 0 - 9.9999999E±99
f8 omega0, the longitude of the ascension node
(semicircle)
±9.9999999E±99
f9
ω, the argument of perigee (semicircle) ±9.9999999E±99
f10 M0, the mean anomaly at reference time (semicircle) ±9.9999999E±99
f11 af0, clock parameter (in seconds) ±9.9999999E±99
f12 af1, clock parameter (sec/sec) 0 - 9.9999999E±99
d13 wn, GPS almanac week number 4 digits
*cc checksum in hex hex
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