[IGSREPORT-10904] Wk 1249 IGS SINEX Combination
David Hutchison
hutch at geod.nrcan.gc.ca
Wed Dec 31 13:46:29 PST 2003
******************************************************************************
IGS Electronic Report 31 Dec 13:46:31 PST 2003 Message Number 10904
******************************************************************************
Author: R. Ferland , D. Hutchison
===================================================================
Combined AC solution for GPS week 1249 - 03/12/14 to 03/12/20
===================================================================
1) Contacts:
============
e-mail: ferland at geod.nrcan.gc.ca
Tel: (613)995-4002 (Remi Ferland)
Fax: (613)995-3215
2) Products:
============
All products are available at cddisa.gsfc.nasa.gov
igs03P1249.snx Combined weekly solution.
igs03P1249.erp Daily Earth Rotation Parameters.
igs00p02.erp Daily Earth Rotation Parameters since GPS week 1013.
IGS03P51.snx Cumulative Combined solution.
igs03P1249.sum This file.
igs03P1249.itr Residuals between the AC and the IGS00 for the RF stations.
igs03P1249.res Residuals between the AC and the Combined Weekly solution.
IGS03P51.res Residuals between the AC and the Cumulative Combined solution.
Where IGSyyPww & igsyyPwwww represent:
yy Last 2 digits of the year
ww week in year yy
wwww GPS week
P GPS technique used
3) Combination Strategy:
========================
The AC solutions are processed using the following procedure:
3-1) The AC solutions are checked/corrected for possible format problems,
station names inconsistencies, etc...
3-2) The AC solutions are unconstrained according to the information provided
in the SOLUTION/APRIORI Block.
3-3) The AC solutions are aligned (using a 7-parameters) and compared to the
IGS00 stations at the current epoch.
ftp://igscb.jpl.nasa.gov/igscb/station/coord/IGS01P37_RS54.SNX.Z
3-4) The AC are compared to IGS00, to each other, to the previous week
solution and to the cumulative solution in order to identify and remove
outliers.
3-5) The weekly AC solutions are combined and added to the cumulative
combined solution. The cumulative combination is done to ensures 14
parameters singularity.
The weekly combined solution is aligned to the IGS00 of the current
epoch using a 7-parameters transformation. The singular cumulative
combined solution is aligned to the IGS00 of the reference epoch
using a 14-parameters transformation and the 54 ITRF station positions
and velocities. The IGS00 is a realization of ITRF2000.
For more details, see:
Blewitt, G., C. Boucher and J. Kouba, 1997, Procedure for ITRF continuous
realization, the report of the IGS GB, presented to the IGS Governing
Board Meeting held in San Francisco, Dec. 11.
Kouba, J., J. Ray and M.M. Watkins, IGS Reference Frame Realization, 1998
IGS Analysis Center Workshop Proceedings, European Space Operations
Centre, Darmstadt, Germany.
The combination software was developed at NRCan.
4) Remarks:
===========
ITR = IGS01P37_RS54.SNX
igs = igs03P1249.snx
IGS = IGS03P51.snx
BuA = IERS Bulletin A
gfz excluded from the geocenter estimation (Sec. 5-4).
Solutions with manual station deletion:
After unconstraining:
esa RIOG SANT
ngs KOKB
4-1) Starting with GPS week 1143, the solutions are aligned to the
IGS01P37_RS54.SNX realization of ITRF2000.
4-2) Starting with GPS week 1078, UT1-UTC from IERS Bulletin A
is included in the erp files.
5) Results:
===========
5-1) AC (Variance Factor)^0.5 estimates:
==================================================
The residuals used in the estimation of the Variance Factor
are the differences between the cumulative combined solution
and each AC weekly solution.
SF = (Variance Factor)^0.5 = (Chi^2/dof)^0.5
Final(SF) = Apriori(SF) * Aposteriori(SF)
Solution |# sta| #RF | Apriori(SF)|Aposteriori(SF)| Final(SF)|
---------------|-----|-----|---------------|---------------|---------------|
cod | 160 | 35 | 28.332 | 0.994 | 28.152 |
emr | 41 | 24 | 6.364 | 0.989 | 6.291 |
esa | 57 | 38 | 6.177 | 0.985 | 6.084 |
gfz | 175 | 41 | 10.817 | 0.992 | 10.733 |
jpl | 110 | 28 | 5.214 | 0.919 | 4.793 |
ngs | 79 | 43 | 24.377 | 1.088 | 26.511 |
sio | 169 | 42 | 2.120 | 0.994 | 2.106 |
igs | 227 | 44 | 1.187 | 1.024 | 1.216 |
---------------|-----|-----|---------------|---------------|---------------|
5-2) Solution Residuals weighted Average & STD :
=====================================================
5-2-1) With respect to the IGS00 stations:
=============================================
Solution | Weighted Average (mm) | STD (mm) |
| N E U | N E U |
---------------|---------------------------|---------------------------|
cod 35 | 1.4 0.5 -1.6 | 4.0 4.9 12.3 |
emr 24 | 1.0 0.4 -0.1 | 2.6 3.2 10.8 |
esa 38 | -0.4 0.6 0.2 | 3.6 4.4 12.8 |
gfz 41 | 1.4 0.7 -0.3 | 3.7 4.6 10.0 |
jpl 28 | 0.5 0.3 -0.2 | 3.6 3.5 10.2 |
ngs 43 | -2.4 1.8 -0.9 | 7.7 9.5 13.9 |
sio 42 | 0.1 0.9 0.3 | 3.8 5.2 8.0 |
---------------|---------------------------|---------------------------|
5-2-2) With respect to the Weekly Combination:
=================================================
Solution | Weighted Average (mm) | STD (mm) |
| N E U | N E U |
---------------|---------------------------|---------------------------|
cod 155 | 0.5 0.6 -0.1 | 1.7 1.4 7.7 |
emr 38 | 0.5 0.4 -2.0 | 2.1 1.8 8.1 |
esa 56 | -1.5 -0.0 -1.5 | 1.7 1.8 10.0 |
gfz 166 | 0.3 0.3 -1.1 | 1.1 1.4 4.3 |
jpl 107 | -0.1 -0.2 -1.3 | 1.7 1.6 7.9 |
ngs 75 | -2.7 0.4 0.4 | 5.8 6.6 13.1 |
sio 154 | -0.5 0.3 0.1 | 1.4 2.7 4.7 |
ITR 43 | -0.6 -0.9 0.3 | 3.7 3.9 9.1 |
---------------|---------------------------|---------------------------|
5-2-3) With respect to the Cumulative Combination:
=====================================================
Solution | Weighted Average (mm) | STD (mm) |
| N E U | N E U |
---------------|---------------------------|---------------------------|
cod 128 | 0.7 0.5 -0.2 | 3.0 2.2 10.9 |
emr 40 | 0.9 0.3 -2.5 | 2.7 2.4 10.6 |
esa 56 | -1.1 0.0 -0.1 | 2.3 2.8 11.5 |
gfz 156 | 0.2 0.2 -1.0 | 2.8 2.5 7.5 |
jpl 97 | 0.1 -0.5 -0.4 | 2.4 2.2 9.7 |
ngs 78 | -2.7 0.3 0.1 | 6.6 7.8 13.7 |
sio 144 | -0.4 0.4 -0.5 | 2.6 3.7 6.9 |
igs 174 | 0.1 0.0 -0.0 | 1.8 1.9 5.7 |
ITR 54 | -0.7 -0.7 0.2 | 2.9 2.5 4.8 |
---------------|---------------------------|---------------------------|
5-3) 7-Parameters Transformation: AC ----> IGS01P37_RS54.snx
=================================================================
5-3-1) Estimates :
=====================
Solution | R X R Y R Z T X T Y T Z SCL |
| (mas) (mas) (mas) (mm) (mm) (mm) (ppb) |
---------------|---------------------------------------------------------------|
cod | 0.011 0.003 -0.047 7.3 15.1 -30.1 1.16 |
emr | 0.023 -0.007 -0.031 2.8 18.7 -18.6 3.29 |
esa | 0.006 -0.082 -0.009 2.1 13.3 -7.3 2.11 |
gfz | 0.032 -0.023 0.004 -1.3 1.1 -2.5 1.07 |
jpl | 0.018 -0.003 -0.033 3.4 10.2 -7.1 0.54 |
ngs | 0.094 -0.084 -0.026 2.9 14.2 -9.0 1.43 |
sio | -0.008 -0.014 0.027 6.1 0.5 40.8 1.62 |
---------------|---------------------------------------------------------------|
5-3-2) STD :
===============
Solution | R X R Y R Z T X T Y T Z SCL |
| (mas) (mas) (mas) (mm) (mm) (mm) (ppb) |
---------------|---------------------------------------------------------------|
cod | 0.067 0.067 0.076 1.7 1.7 1.7 0.27 |
emr | 0.080 0.079 0.095 2.1 2.1 2.1 0.32 |
esa | 0.065 0.066 0.075 1.7 1.7 1.7 0.26 |
gfz | 0.061 0.062 0.071 1.6 1.6 1.6 0.25 |
jpl | 0.075 0.072 0.087 1.9 1.9 1.9 0.30 |
ngs | 0.060 0.061 0.069 1.6 1.6 1.6 0.24 |
sio | 0.061 0.062 0.069 1.6 1.6 1.6 0.25 |
---------------|---------------------------------------------------------------|
5-4) Geocenter:
====================
| X Y Z | s X s Y s Z |
| (mm) (mm) (mm) | (mm) (mm) (mm) |
---------------|---------------------------|---------------------------|
igs | 3.0 8.3 -7.5 | 1.6 1.8 3.8 |
---------------|---------------------------|---------------------------|
5-5) ERP Residuals Weighted Average & STD :
================================================
5-5-1) Weighted Average :
============================
Solution | UT LOD XPO XPOR YPO YPOR |
| us us .01mas .01ma/d .01mas .01ma/d |
---------------|------------------------------------------------------------|
cod | --- 2.6 1.7 --- -5.4 --- |
emr | --- 10.1 -4.6 12.7 -6.6 -18.6 |
esa | --- 17.1 1.7 --- 5.4 --- |
gfz | --- -0.1 2.6 -11.5 1.1 -0.9 |
jpl | --- 22.2 -0.9 21.8 -5.1 10.9 |
ngs | --- -7.1 -23.7 --- 14.4 --- |
sio | --- -21.6 -4.2 5.3 3.1 8.9 |
ITR | --- --- --- --- --- --- |
BuA | --- 12.1 -6.9 4.8 23.7 14.2 |
---------------|------------------------------------------------------------|
5-5-2) STD :
===============
Solution | UT LOD XPO XPOR YPO YPOR |
| us us .01mas .01ma/d .01mas .01ma/d |
---------------|------------------------------------------------------------|
cod | --- 7.6 1.6 --- 1.9 --- |
emr | --- 7.6 2.2 12.6 2.8 6.2 |
esa | --- 10.4 3.6 --- 2.5 --- |
gfz | --- 8.0 1.3 4.7 1.6 3.9 |
jpl | --- 9.9 2.2 9.3 2.1 5.4 |
ngs | --- 39.8 3.4 --- 7.3 --- |
sio | --- 9.4 2.5 7.1 1.5 5.7 |
ITR | --- --- --- --- --- --- |
BuA | --- 13.7 3.2 7.7 3.8 7.0 |
---------------|------------------------------------------------------------|
5-6) Outliers:
===================
Thresholds set at 5 sigmas and 50 mm.
Solution Solution | Station | N E U |
Minus |code id soln| (mm) (mm) (mm)|
-----------------------------------------|------------|-----------------------|
| | |
IGS01P37_RS54.snx esa12497.snx |CHAT A ----| -3.3 -1.8 -68.0|
| | |
IGS01P37_RS54.snx gfz12497.snx |YAR1 A ----| -2.8 7.1 -37.2|
| | |
IGS01P37_RS54.snx sio12497.snx |MCM4 A ----| 1.6 2.1 39.5|
| | |
cod12497.snx jpl12497.snx |DWH1 A ----| 0.8 -0.8 -59.7|
| | |
esa12497.snx gfz12497.snx |KOKB A 2| -2.6 -4.1 -50.5|
| | |
IGS03P50.snx esa12497.snx |GOL2 A ----| 14.4 58.2 -4.9|
| | |
IGS03P50.snx esa12497.snx |FAIR A 2| -4.8 2.9 -50.1|
| | |
IGS03P50.snx jpl12497.snx |BOGT A 3| -2.8 1.9 42.1|
| | |
IGS03P50.snx igs03P1249.snx |ALRT A ----| -6.0 -2.9 1.4|
IGS03P50.snx igs03P1249.snx |BOGT A 3| -1.0 1.0 40.5|
IGS03P50.snx igs03P1249.snx |FAIR A 2| -0.9 -2.9 -19.3|
IGS03P50.snx igs03P1249.snx |MAG0 A ----| 9.8 5.2 -0.6|
IGS03P50.snx igs03P1249.snx |WHIT A ----| -10.1 -5.8 -11.6|
IGS03P50.snx igs03P1249.snx |YSSK A ----| 11.6 -4.1 7.0|
-----------------------------------------|------------|-----------------------|
5-7) Conflicts:
===========================
5-7-1) Station Name Conflicts:
=============================
IERS DOMES NO cod emr esa gfz jpl ngs sio IGS igs
============= ====== ====== ====== ====== ====== ====== ====== ====== ======
50134M001 DARR A DARW A DARW A DARW A DARW A DARW A DARW A
66010M001 DAV1 A DAV1 A DAV1 A DAV1 A DAV1 A DAV1 A DAV1 A DAV1 A
DAVR A DAVR A
40405S031 GOLD A GOL2 A GOLD A GOL2 A GOL2 A GOLD A GOLD A
GOLD A
22306M002 IISC A IISC A IISC B IISC A IISC A IISC B IISC A IISC A IISC A
43005M001 KELY A KELY A KELY A KELY A KELY A KELY A KELY B
10422M001 KIR0 A KR0G A
30314M002 SUTH A SUTH B SUTH A SUTH A SUTH A SUTH A SUTH A
43001M002 THU2 A THU3 A THU3 A THU2 A THU3 A THU3 A
50103M108 TIDB A TID2 A TIDB A TID2 A TID2 A TID2 A TIDB A TIDB A
TIDB A TID2 A TIDB A TIDB A
50107M004 YAR2 A YAR2 A YAR2 A YAR1 A YAR1 A
YAR2 A
13407S012 MADR A MAD2 A MAD2 A MADR A MADR A
MADR A
40400M007 JPLM A JPLM A JPLM A JPLM A
MISSING IERS DOMES NOS AT gfz:
-----------------------------
BISH A PMON A PALM A
MISSING IERS DOMES NOS AT sio:
-----------------------------
PUR2 A CONZ A OUSD A CNCL A KARA A MERS A CAVA A SFEL A VOLT A BRAS A
MISSING IERS DOMES NOS AT IGS:
-----------------------------
TALA A
5-7-2) Station Antenna Conflicts:
================================
_______________________
|Enforcing these aliases|
|_______________________|
GOLD A: GOL2 A
IISC A: IISC B
SUTH A: SUTH B
MADR A: MAD2 A
ABBREVIATIONS:
-------------
L1: L1 Offset
L2: L2 Offset
ECC: Eccentricity
-N: NORTH (Latitude)
-E: EAST (Longitude)
-U: UP (Vertical)
Compare to file IGS.SNX (IGS).
Antenna Conflicts in file esa12497.snx (esa).
------- --------- -- ----
STN L1-U L1-N L1-E L2-U L2-N L2-E ECC-U ECC-N ECC-E
AGY CODE PT (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.)
=== ==== == ==== ==== ==== ==== ==== ==== ==== ==== ====
esa KIRU A .1081 .0003 -.0002 .1256 .0009 .0005 .0620 .0000 .0000
IGS KIRU A .1100 .0000 .0000 .1280 .0000 .0000 .0620 .0000 .0000
esa NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0000 .0000
IGS NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0040 -.0010
Antenna Conflicts in file gfz12497.snx (gfz).
------- --------- -- ----
STN L1-U L1-N L1-E L2-U L2-N L2-E ECC-U ECC-N ECC-E
AGY CODE PT (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.)
=== ==== == ==== ==== ==== ==== ==== ==== ==== ==== ====
gfz BAY2 A .0920 -.0007 .0004 .0601 -.0001 -.0008 .0000 .0000 .0000
IGS BAY2 A .0877 -.0012 -.0008 .0598 .0009 -.0016 .0000 .0000 .0000
gfz NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0000 .0000
IGS NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0040 -.0010
gfz OBET A .2725 .0017 .0036 .2916 .0008 .0042 3.2470 .0000 .0000
IGS OBET A .2725 .0017 .0036 .2916 .0008 .0042 3.2470-5.264013.7960
Antenna Conflicts in file jpl12497.snx (jpl).
------- --------- -- ----
STN L1-U L1-N L1-E L2-U L2-N L2-E ECC-U ECC-N ECC-E
AGY CODE PT (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.)
=== ==== == ==== ==== ==== ==== ==== ==== ==== ==== ====
jpl ALGO A .1100 .0000 .0000 .1280 .0000 .0000 .0820 .0000 .0000
IGS ALGO A .1100 .0000 .0000 .1280 .0000 .0000 .1000 .0000 .0000
jpl ASPA A .0729 -.0004 -.0010 .0750 -.0004 -.0013 -.0072 .0000 .0000
IGS ASPA A .0729 -.0004 -.0010 .0750 -.0004 -.0013 .0000 .0000 .0000
jpl CHAT A .1100 .0000 .0000 .1280 .0000 .0000 .0031 .0000 .0000
IGS CHAT A .1100 .0000 .0000 .1280 .0000 .0000 .0062 .0000 .0000
jpl CONZ A .1131 .0011 .0002 .1186 .0010 .0013 .0000 .0000 .0000
IGS CONZ A .1131 .0011 .0002 .1186 .0010 .0013 -.0125 .0000 .0000
jpl CRO1 A .1100 .0000 .0000 .1280 .0000 .0000 .0614 .0000 .0000
IGS CRO1 A .1100 .0000 .0000 .1280 .0000 .0000 .0814 .0000 .0000
jpl DARW A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS DARW A .1100 .0000 .0000 .1280 .0000 .0000 .0025 .0000 .0000
jpl FAIR A .1100 .0000 .0000 .1280 .0000 .0000 .0840 .0000 .0000
IGS FAIR A .1100 .0000 .0000 .1280 .0000 .0000 .0863 .0000 .0000
jpl GLPS A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS GLPS A .1100 .0000 .0000 .1280 .0000 .0000 .0083 .0000 .0000
jpl GUAO A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS GUAO A .1100 .0000 .0000 .1280 .0000 .0000 .0800 .0000 .0000
jpl IISC A .1100 .0000 .0000 .1280 .0000 .0000 1.3138 .0000 .0000
IGS IISC A .1100 .0000 .0000 .1280 .0000 .0000 .0780 .0000 .0000
jpl KOU1 A .1131 .0011 .0002 .1186 .0010 .0013 .0000 .0000 .0000
IGS KOU1 A .1131 .0011 .0002 .1186 .0010 .0013 .1070 .0000 .0000
jpl KOUR A .1100 .0000 .0000 .1280 .0000 .0000 .1000 .0000 .0000
IGS KOUR A .1100 .0000 .0000 .1280 .0000 .0000 .0450 .0000 .0000
jpl KUUJ A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS KUUJ A .1100 .0000 .0000 .1280 .0000 .0000 .1000 .0000 .0000
jpl LAE1 A .1100 .0000 .0000 .1280 .0000 .0000 .0500 .0000 .0000
IGS LAE1 A .1100 .0000 .0000 .1280 .0000 .0000 .0110 .0000 .0000
jpl LHAZ A .1080 -.0002 .0001 .1267 -.0003 .0002 .0031 .0000 .0000
IGS LHAZ A .1080 -.0002 .0001 .1267 -.0003 .0002 .1350 .0000 .0000
jpl MAC1 A .1100 .0000 .0000 .1280 .0000 .0000 .0675 .0000 .0000
IGS MAC1 A .1100 .0000 .0000 .1280 .0000 .0000 .0280 .0000 .0000
jpl MDVJ A .1131 .0011 .0002 .1186 .0010 .0013 .0000 .0000 .0000
IGS MDVJ A .1131 .0011 .0002 .1186 .0010 .0013 .1660 .0000 .0000
jpl NKLG A .1100 .0000 .0000 .1280 .0000 .0000 3.1000 .0000 .0000
IGS NKLG A .1100 .0000 .0000 .1280 .0000 .0000 3.1090 .0000 .0000
jpl NOUM A .0714 .0003 .0005 .0682 -.0004 .0001 .0059 .0000 .0000
IGS NOUM A .0714 .0003 .0005 .0682 -.0004 .0001 .0000 .0000 .0000
jpl NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0000 .0000
IGS NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0040 -.0010
jpl OHI2 A .1100 .0000 .0000 .1280 .0000 .0000 .0008 .0000 .0000
IGS OHI2 A .1100 .0000 .0000 .1280 .0000 .0000 -.0080 .0000 .0000
jpl OHI3 A .1080 -.0002 .0001 .1267 -.0003 .0002 -.0151 .0000 .0000
IGS OHI3 A .1080 -.0002 .0001 .1267 -.0003 .0002 .0050 .0000 .0000
jpl REYK A .1100 .0000 .0000 .1280 .0000 .0000 .0680 .0000 .0000
IGS REYK A .1100 .0000 .0000 .1280 .0000 .0000 .0555 .0000 .0000
jpl SIMO A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS SIMO A .1100 .0000 .0000 .1280 .0000 .0000 .0520 .0000 .0000
jpl STJO A .1100 .0000 .0000 .1280 .0000 .0000 .1300 .0000 .0000
IGS STJO A .1100 .0000 .0000 .1280 .0000 .0000 .1000 .0000 .0000
jpl TNML A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS TNML A .1100 .0000 .0000 .1280 .0000 .0000 1.5770 .0000 .0000
jpl WUHN A .1100 .0000 .0000 .1280 .0000 .0000 2.3200 .0000 .0000
IGS WUHN A .1100 .0000 .0000 .1280 .0000 .0000 2.3610 -.0094 -.0022
jpl ZAMB A .1100 .0000 .0000 .1280 .0000 .0000 .0000 .0000 .0000
IGS ZAMB A .1100 .0000 .0000 .1280 .0000 .0000 .0540 .0000 .0000
Antenna Conflicts in file ngs12497.snx (ngs).
------- --------- -- ----
STN L1-U L1-N L1-E L2-U L2-N L2-E ECC-U ECC-N ECC-E
AGY CODE PT (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.)
=== ==== == ==== ==== ==== ==== ==== ==== ==== ==== ====
ngs BAKO A .0757 .0000 .0000 .0745 .0000 .0000 1.6160 .0000 .0000
IGS BAKO A .0780 .0000 -.0030 .0744 -.0031 -.0013 1.6160 .0000 .0000
Antenna Conflicts in file sio12497.snx (sio).
------- --------- -- ----
STN L1-U L1-N L1-E L2-U L2-N L2-E ECC-U ECC-N ECC-E
AGY CODE PT (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.) (M.)
=== ==== == ==== ==== ==== ==== ==== ==== ==== ==== ====
sio CONZ A .0739 .0006 -.0014 .0767 .0010 -.0011 .0790 .0000 .0000
IGS CONZ A .1131 .0011 .0002 .1186 .0010 .0013 -.0125 .0000 .0000
sio NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0000 .0000
IGS NYAL A .0780 .0000 .0000 .0960 .0000 .0000 5.2160 .0040 -.0010
sio WUHN A .1100 .0000 .0000 .1280 .0000 .0000 2.3610 .0000 .0000
IGS WUHN A .1100 .0000 .0000 .1280 .0000 .0000 2.3610 -.0094 -.0022
The following files have no antenna conflicts:
- cod12497.snx (cod)
- emr12497.snx (emr)
--
David Hutchison
Geodetic Survey of Canada
Ottawa, Ontario, Canada
Internet: hutch at geod.emr.ca
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