u-blox ZED-F9P User Manual

u-blox ZED-F9P Interface Description - Manual
Advance Information
Name Description
towValid
1 = Valid GPS time of week (iTOW & fTOW, see Time Validity section for details)
weekValid
1 = Valid GPS week number (see Time Validity section for details)
leapSValid
1 = Valid GPS leap seconds
5.14.22 UBX-NAV-TIMELS (0x01 0x26)
5.14.22.1 Leap second event information
Message
UBX-NAV-TIMELS
Description
Leap second event information
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Periodic/Polled
Comment
Information about the upcoming leap second event if one is scheduled.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x01 0x26 24
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 (0x00 for this version).
5 U1[3] - reserved1 - Reserved
8 U1 - srcOfCurrLs - Information source for the current number of
leap seconds.
0: Default (hardcoded in the firmware, can be
outdated)
1: Derived from time difference between GPS
and GLONASS time
2: GPS
3: SBAS
4: BeiDou
5: Galileo
6: Aided data
7: Configured
255: Unknown
9 I1 - currLs s Current number of leap seconds since start of
GPS time (Jan 6, 1980). It reflects how much
GPS time is ahead of UTC time. Galileo number
of leap seconds is the same as GPS. BeiDou
number of leap seconds is 14 less than GPS.
GLONASS follows UTC time, so no leap
seconds.
UBX-18010854 - R04 Advance Information Page 166 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