DATUMTRANSFORMATIONS

Available datum transformations

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2

This log reports the datum transformations known to the receiver. This includes the default transformations included in the firmware, plus user-defined transformations entered using the DATUMTRANSFORMATION command.

The entry “USER” to “WGS84” transformation in this log is the datum transformation set by the USERDATUM command or the USEREXPDATUM command. The parameters in this entry will differ from those entered via the user datum commands due to differences in units and convention.

Message ID: 2298

Log Type: Asynch

Recommended Input:

log datumtransformations

Abbreviated ASCII Example:

<DATUMTRANSFORMATIONS COM1 0 30.0 UNKNOWN 0 0.377 02040020 f957 32768

<     13

<          "ITRF2014" "ITRF2000" 2010.000 0.0007 0.0012 -0.0261 0.0000 0.0000 0.0000 2.120 0.0001 0.0001 -0.0019 0.0000 0.0000 0.0000 0.110

<          "ITRF2014" "ITRF2005" 2010.000 0.0026 0.0010 -0.0023 0.0000 0.0000 0.0000 0.920 0.0003 0.0000 -0.0001 0.0000 0.0000 0.0000 0.030

<          "ITRF2014" "ITRF2008" 2010.000 0.0016 0.0019 0.0024 0.0000 0.0000 0.0000 -0.020 0.0000 0.0000 -0.0001 0.0000 0.0000 0.0000 0.030

<          "ITRF2014" "ETRF2000" 2010.000 0.0547 0.0522 -0.0741 1.7010 10.2900 -16.6320 2.120 0.0001 0.0001 -0.0019 0.0810 0.4900 -0.7920 0.110

<          "ITRF2014" "ETRF2005" 1989.000 0.0523 0.0490 -0.0372 0.0000 0.0000 0.0000 0.290 0.0003 0.0000 -0.0001 0.0540 0.5180 -0.7810 0.030

<          "ITRF2014" "ETRF2014" 2010.000 0.0000 0.0000 0.0000 1.7850 11.1510 -16.1700 0.000 0.0000 0.0000 0.0000 0.0850 0.5310 -0.7700 -0.000

<          "ITRF2014" "NAD83(NSRS2011)" 1997.000 0.9950 -1.9014 -0.5228 -25.9147 -9.4264 -11.5993 1.305 0.0008 -0.0006 -0.0014 -0.0667 0.7574 0.0513 -0.072

<          "ITRF2014" "NAD83(CSRS)" 1997.000 0.9950 -1.9014 -0.5228 -25.9147 -9.4264 -11.5993 1.305 0.0008 -0.0006 -0.0014 -0.0667 0.7574 0.0513 -0.072

<          "ITRF2014" "NAD83(PA11)" 1997.000 0.9096 -2.0142 -0.5616 -27.7410 -13.4690 -2.7120 0.690 0.0001 0.0001 -0.0019 0.3840 -1.0070 2.1860 0.110

<          "ITRF2014" "NAD83(MA11)" 1997.000 0.9096 -2.0142 -0.5616 -28.9710 -10.4200 -8.9280 0.690 0.0001 0.0001 -0.0019 0.0200 -0.1050 0.3470 0.110

<          "ITRF2014" "GDA94" 1994.000 -0.0831 -0.0175 0.0360 0.4254 -2.2578 -2.4015 9.210 0.0014 0.0013 0.0008 -1.5461 -1.1820 -1.1551 0.139

<          "ITRF2014" "GDA2020" 2020.000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.000 0.0000 0.0000 0.0000 -1.5038 -1.1835 -1.2072 0.000

<          "ITRF2020" "ITRF2014" 2015.000 -0.0014 -0.0009 0.0014 0.0000 0.0000 0.0000 -0.420 0.0000 -0.0001 0.0002 0.0000 0.0000 0.0000 0.000

Field	Field Type	Description	Format	Binary Bytes	Binary Offset
1	Log header	DATUMTRANSFORMATIONS header For information about log headers, see ASCII, Abbreviated ASCII or Binary.	–	H	0
2	# transformations	Number of transformations to follow	Ulong	4	H
3	from	Name of from datum	Char[32]	variable	H+4
4	to	Name of to datum	Char[32]	variable	variable
5	epoch	Reference epoch of parameters (decimal year) Examples: 2011.00 = Jan 1, 2011, 2011.19 = Mar 11, 2011	Double	8	variable
6	tx	Translations at reference epoch (metres)	Float	4	variable
7	ty		Float	4	variable
8	tz		Float	4	variable
9	rx	Rotations at reference epoch (milliarcseconds)	Float	4	variable
10	ry		Float	4	variable
11	rz		Float	4	variable
12	scale	Scale difference at reference epoch (parts per billion)	Float	4	variable
13	tx_vel	Translation rates (metres/year)	Float	4	variable
14	ty_vel		Float	4	variable
15	tz_vel		Float	4	variable
16	rx_vel	Rotation rates (milliarcseconds/year)	Float	4	variable
17	ry_vel		Float	4	variable
18	rz_vel		Float	4	variable
19	scale_vel	Scale difference rate (parts per billion/year)	Float	4	variable
21…	Next transformation offset = variable
variable	xxxx	32-bit CRC (ASCII and Binary only)	Ulong	4	variable
variable	[CR][LF]	Sentence terminator (ASCII only)	–	–	–