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 - Reserved
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 AssistNow Online 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 - Reserved
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 - Reserved
UBX-18010854 - R04 Advance Information Page 117 of 259
To Next Page
Loading...
Need help?
General
