Chapter 11. Data Output; Ion: Ionosphere Parameters - Magellan ProFlex 500 Reference Manual

Chapter 11. Data Output

ION: Ionosphere Parameters

This message contains the ionosphere and GPS-to-UTC data
conversion parameters.
The message is as follows:
$PASHR,ION,<structure>
The message's binary structure is described in the table
below.
Type Name Size
Float a0 4
Float a1 4
Float a2 4
Float a3 4
Float b0 4
Float b1 4
Float b2 4
Float b3 4
Double A1 8
Double A0 8
Unsigned
Tot 4
long
Short Wnt 4
Short DtLS 2
Short WnLSF 2
Short DN 2
Short DtLSF 2
Short Wn 2
Unsigned
Tow 4
long
Short bulwn 2
Unsigned
bultow 4
long
Contents
Ionospheric parameter (seconds)
Ionospheric parameter (seconds/semi-circle)
Ionospheric parameter (seconds/semi-circle)
Ionospheric parameter (seconds/semi-circle)
Ionospheric parameter (seconds)
Ionospheric parameter (seconds/semi-circle)
Ionospheric parameter (seconds/semi-circle)
Ionospheric parameter (seconds/semi-circle)
First order terms of polynomial
Constant terms of polynomial
Reference time for UTC data
UTC reference week number
GPS-UTC differences at reference time
Week number when leap second became effective
Day number when leap second became effective
Delta time between GPS and UTC after correction
GPS week number
Time of the week (in seconds)
GPS week number when message was read
Time of the week when message was read
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