u-blox ZED-F9P, Interface Description

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u-blox ZED-F9P Interface Description - Manual
Advance Information
5.14.8 UBX-NAV-ORB (0x01 0x34)
5.14.8.1 GNSS Orbit Database Info
Message
UBX-NAV-ORB
Description
GNSS Orbit Database Info
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Periodic/Polled
Comment
Status of the GNSS orbit database knowledge.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x01 0x34 8 + 6*numSv
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U4 -
iTOW
ms GPS time of week of the navigation epoch .
See the description of iTOW for details.
4 U1 -
version
- Message version (1, for this version)
5 U1 -
numSv
- Number of SVs in the database
6 U1[2] -
reserved1
- Reserved
Start of repeated block (numSv times)
8 + 6*N U1 -
gnssId
- GNSS ID
9 + 6*N U1 -
svId
- Satellite ID
10 + 6*N X1 -
svFlag
- Information Flags (see graphic below )
11 + 6*N X1 -
eph
- Ephemeris data (see graphic below )
12 + 6*N X1 -
alm
- Almanac data (see graphic below )
13 + 6*N X1 -
otherOrb
- Other orbit data available (see graphic below )
End of repeated block
Bitfield svFlag
This graphic explains the bits of
svFlag
UBX-18010854 - R04 Advance Information Page 146 of 259