u-blox ZED-F9P User Manual

u-blox ZED-F9P Interface Description - Manual
Advance Information
Bitfield valid
This graphic explains the bits of valid
Name Description
todValid
1 = Valid TOD and fTOD (see Time Validity section for details)
dateValid
1 = Valid N4 and Nt (see Time Validity section for details)
5.14.21 UBX-NAV-TIMEGPS (0x01 0x20)
5.14.21.1 GPS Time Solution
Message
UBX-NAV-TIMEGPS
Description
GPS Time Solution
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Periodic/Polled
Comment
This message reports the precise GPS time of the most recent navigation solution including
validity flags and an accuracy estimate.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x01 0x20 16
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 I4 - fTOW ns Fractional part of iTOW (range: +/-500000).
The precise GPS time of week in seconds is:
(iTOW * 1e-3) + (fTOW * 1e-9)
8 I2 - week - GPS week number of the navigation epoch
10 I1 - leapS s GPS leap seconds (GPS-UTC)
11 X1 - valid - Validity Flags (see graphic below)
12 U4 - tAcc ns Time Accuracy Estimate
Bitfield valid
This graphic explains the bits of valid
UBX-18010854 - R04 Advance Information Page 165 of 259

u-blox ZED-F9P Specifications

General

GNSS	GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS
Concurrent GNSS	4
RTK	Yes
Velocity Accuracy	0.05 m/s
Time Pulse Accuracy	30 ns
Operating Temperature	-40°C to +85°C
Supply Voltage	2.7 V to 3.6 V
Channels	184
Frequency Bands	L1, L2
Dimensions	22 mm x 17 mm x 2.4 mm
Interfaces	UART, SPI, I2C