u-blox ZED-F9P Interface Description - Manual
Advance Information
MGA-GPS continued
Byte Offset
Number
Format
Scaling
Name
Unit
Description
15
U1
-
utcWNlsf
weeks
Week number at the end of which the future
leap second becomes effective (the 8 bit WNLSF
field)
16
U1
-
utcDn
days
Day number at the end of which the future leap
second becomes effective
17
I1
-
utcDtLSF
s
Delta time due to future leap seconds
18
U1[2]
-
reserved2
-
5.12.6.5 UBX-MGA-GPS-IONO
Message
UBX-MGA-GPS-IONO
Description
GPS Ionosphere Assistance
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Input
Comment
This message allows the delivery of GPS ionospheric assistance to a receiver. See the
description of
for details.
Header
Class
ID
Length (Bytes)
Payload
Checksum
Message Structure
0xB5 0x62
0x13 0x00 16
see below
CK_A CK_B
Payload Contents:
Byte Offset
Number
Format
Scaling
Name
Unit
Description
0
U1
-
type
-
Message type (0x06 for this type)
1
U1
-
version
-
Message version (0x00 for this version)
2
U1[2]
-
reserved1
-
4
I1
2^-30
ionoAlpha0
s
Ionospheric parameter alpha0 [s]
5
I1
2^-27
ionoAlpha1
s/semi-
circle
Ionospheric parameter alpha1 [s/semi-circle]
6
I1
2^-24
ionoAlpha2
s/(semi-
circle^2
)
Ionospheric parameter alpha2 [s/semi-circle^2]
7
I1
2^-24
ionoAlpha3
s/(semi-
circle^3
)
Ionospheric parameter alpha3 [s/semi-circle^3]
8
I1
2^11
ionoBeta0
s
Ionospheric parameter beta0 [s]
9
I1
2^14
ionoBeta1
s/semi-
circle
Ionospheric parameter beta1 [s/semi-circle]
10
I1
2^16
ionoBeta2
s/(semi-
circle^2
)
Ionospheric parameter beta2 [s/semi-circle^2]
11
I1
2^16
ionoBeta3
s/(semi-
circle^3
)
Ionospheric parameter beta3 [s/semi-circle^3]
12
U1[4]
-
reserved2
-
UBX-18010854 - R04
Advance Information
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