MATCHEDXYZ

Matched RTK Cartesian position

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7

This log contains the receiver’s matched position in ECEF coordinates. It represents positions that have been computed from time matched base and rover observations. There is no base station extrapolation error on these positions because they are based on buffered measurements, that is, they lag real time, by some amount, depending on the latency of the data link. If the rover receiver has not been enabled to accept RTK differential data or is not actually receiving data leading to a valid solution, this is reflected by the code shown in field #2 (solution status) and #3 (position type). See Figure: The WGS84 ECEF Coordinate System for a definition of the ECEF coordinates.

This log provides the best accuracy in static operation. For lower latency in kinematic operation, see the BESTXYZ log or RTKXYZ log. The data in the logs changes only when a base observation (RTCMv3) changes.

The time stamp in the header is the time of the matched observations that the computed position is based on and not the current time.

The position coordinates are provided in the datum configured by the OUTPUTDATUM command.

Message ID: 242

Log Type: Asynch

Recommended Input:

log matchedxyza onchanged

Asynchronous logs, such as MATCHEDXYZ, should only be logged ONCHANGED otherwise the most current data is not output when it is available. This is especially true of the ONTIME trigger, which may cause inaccurate time tags to result.

ASCII Example:

#MATCHEDXYZA,USB1,0,66.5,FINESTEERING,2211,233514.000,02000020,1d7b,16809;SOL_COMPUTED,NARROW_INT,-1632848.2280,-3662159.5450,4944902.5909,0.0070,0.0077,0.0104,"K250",36,16,16,15,0,01,00,33*e2f7457b

Field	Field type	Description	Format	Binary Bytes	Binary Offset
1	Log header	MATCHEDXYZ header For information about log headers, see ASCII, Abbreviated ASCII or Binary.		H	0
2	P-sol status	Solution status, see Table: Solution Status	Enum	4	H
3	pos type	Position type, see Table: Position or Velocity Type	Enum	4	H+4
4	P-X	Position X-coordinate (m)	Double	8	H+8
5	P-Y	Position Y-coordinate (m)	Double	8	H+16
6	P-Z	Position Z-coordinate (m)	Double	8	H+24
7	P-X σ	Standard deviation of P-X (m)	Float	4	H+32
8	P-Y σ	Standard deviation of P-Y (m)	Float	4	H+36
9	P-Z σ	Standard deviation of P-Z (m)	Float	4	H+40
10	stn ID	Base station ID	Char[4]	4	H+44
11	#SVs	Number of satellites tracked	Uchar	1	H+48
12	#solnSVs	Number of satellites used in solution	Uchar	1	H+49
13	#ggL1	Number of satellites with L1/E1/B1 signals used in solution	Uchar	1	H+50
14	#solnMultiSVs	Number of satellites with multi-frequency signals used in solution	Uchar	1	H+51
15	Reserved		Char	1	H+52
16	ext sol stat	Extended solution status (see Table: Extended Solution Status)	Hex	1	H+53
17	Galileo and BeiDou sig mask	Galileo and BeiDou signals used mask (see Table: Galileo and BeiDou Signal-Used Mask)	Hex	1	H+54
18	GPS and GLONASS sig mask	GPS and GLONASS signals used mask (see Table: GPS and GLONASS Signal-Used Mask)	Hex	1	H+55
19	xxxx	32-bit CRC (ASCII and Binary only)	Hex	4	H+56
20	[CR][LF]	Sentence terminator (ASCII only)	-	-	-