u-blox ZED-F9P Interface Description - Manual
Advance Information
CFG-DAT continued
Byte Offset
Number
Format
Scaling
Name
Unit
Description
0
R8
-
majA
m
Semi-major Axis ( accepted range = 6,300,000.0
to 6,500,000.0 meters ).
8
R8
-
flat
-
1.0 / Flattening ( accepted range is 0.0 to 500.0
).
16
R4
-
dX
m
X Axis shift at the origin ( accepted range is +/-
5000.0 meters ).
20
R4
-
dY
m
Y Axis shift at the origin ( accepted range is +/-
5000.0 meters ).
24
R4
-
dZ
m
Z Axis shift at the origin ( accepted range is +/-
5000.0 meters ).
28
R4
-
rotX
s
Rotation about the X Axis ( accepted range is
+/- 20.0 milli-arc seconds ).
32
R4
-
rotY
s
Rotation about the Y Axis ( accepted range is
+/- 20.0 milli-arc seconds ).
36
R4
-
rotZ
s
Rotation about the Z Axis ( accepted range is +/-
20.0 milli-arc seconds ).
40
R4
-
scale
ppm
Scale change ( accepted range is 0.0 to 50.0
parts per million ).
5.9.3.2 The currently defined Datum
Message
UBX-CFG-DAT
Description
The currently defined Datum
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Get
Comment
This message is deprecated in protocol versions greater than 23.01. Use
,
instead.
See the
Legacy UBX Message Fields Reference
for the corresponding configuration item.
Returns the parameters of the currently defined datum. If no user-defined datum has been
set, this will default to WGS84.
Header
Class
ID
Length (Bytes)
Payload
Checksum
Message Structure
0xB5 0x62
0x06 0x06 52
see below
CK_A CK_B
Payload Contents:
Byte Offset
Number
Format
Scaling
Name
Unit
Description
0
U2
-
datumNum
-
Datum Number: 0 = WGS84, 0xFFFF = user-
defined
2
CH[6]
-
datumName
-
ASCII String: WGS84 or USER
8
R8
-
majA
m
Semi-major Axis ( accepted range = 6,300,000.0
to 6,500,000.0 meters ).
16
R8
-
flat
-
1.0 / Flattening ( accepted range is 0.0 to 500.0
).
UBX-18010854 - R04
Advance Information
Page 42 of 259
