From tah at chandler.mit.edu Thu Apr 10 01:23:16 2003 From: tah at chandler.mit.edu (Tom Herring) Date: Thu, 10 Apr 2003 04:23:16 -0400 (EDT) Subject: [IGSREPORT-10154] Wk 1211 MIT T2 Analysis Report Message-ID: <200304100823.EAA19873@mtglas.mit.edu> ****************************************************************************** IGS Electronic Report 10 Apr 01:24:29 PDT 2003 Message Number 10154 ****************************************************************************** Author: Thomas Herring ******************************************************************************** MIT ANALYSIS REPORT GPS-WEEK 1211 Dates: 03mar23 to 03mar29 ******************************************************************************** MIT (Massachusetts Institute of Technology) Room 54-618 77 Massachusetts Avenue, Cambridge, MA 02139 e-mail: tah at mit.edu tel: (617)253-5941 (Tom Herring) fax: (617)253-1699 PRODUCTS GENERATED: The following products are generated and uploaded into CDDIS @ NASA/GSFC MIT1211g.SNX Combined sinex file from all available analysis centers MIT1211g.SUM Name of this summary file MIT1211g.RES File of the individual AC position estimates residuals to the combined solution for the week. 0.0 Starting Week 1203 we changed the method used to compute the variance scaling for each sinex file. The old method is described in item 2 of the analysis procedures below. In the new method, we determine the scaling factor by the ratio of the adjustments to the IGS00 frame from a loose, rotated and translated solution, to the sigmas determined for the adjustment. The new method is robust when some of the reference sites have changed position (because of outlier detection during the rotation/translation step) and is not senstive to any aproiri rescaling factors used in the analysis. 0.0 Starting Week 1202 adopted IGS01P37_RS54 for reference frame. Dropped KOKB and FAIR from frame definition. 0.1 Starting Week 1125, we removed AREQ from the sites used in determining the variance re-scaling of the center SINEX files. This site appears to have moved by 0.5 meters at around week 1120. 0.2 Starting Week 1110, we stopped applied a pole-tide correction to SIO sinex files because this correction is already made in their analysis. 0.3 Starting Week 1066, we adopted the IGS realization of the ITRF97 (referred to as IGS97). We also replaced our constrained solution a loose solution with translation (+-1 mm) and orientation (+-0.1 mas) constraints applied. 0.4 Starting Week 1020, we adopted the ITRF97 reference frame 0.5 Starting Week 1002, we re-ordered the summary to give the residual summary and the SINEX file errors first. CENTER SUMMARY STATISTICS CENTER # North East Up RMS Chi RMS Chi RMS Chi (mm) (mm) (mm) COD 151 1.5 .5 1.6 .6 20.0 1.9 JPL 88 2.4 .9 2.0 .8 153.2 15.0 SIO 147 1.9 .8 1.9 .6 36.1 5.5 EMR 41 2.1 .6 1.8 .6 42.4 3.7 ESA 60 4.0 1.5 5.2 1.0 36.4 3.9 GFZ 180 1.7 .5 1.6 .5 25.4 2.1 NGS 77 5.9 1.4 6.1 1.0 31.6 2.5 CENTER SINEX ERRORS: (corrected during processing). CNT Site Type of Error Used values IGS.SNX values COM GOPE Used ASH701946.3 dL1 .0006 .0008 .1098 dL2 .0007 .0017 .1280 m COM GOPE Real ASH701946.3 dL1 .0006 .0008 .1098 dL2 .0007 .0014 .1284 m COM WUHN Eccentricity: Used -.0094 -.0022 2.3610 Real .0000 .0000 2.3610 m NRC NYAL Eccentricity: Used .0040 -.0010 5.2160 Real .0000 .0000 5.2160 m NOA AUCK Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA AUCK Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA BAHR Used ASH700936B_M dL1 .0000 .0000 .1089 dL2 .0000 .0000 .1274 m NOA BAHR Real ASH700936B_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA BAKO Used TRM14532.00 dL1 .0000 .0000 .0757 dL2 .0000 .0000 .0745 m NOA BAKO Real TRM14532.00 dL1 .0000 -.0030 .0780 dL2 -.0031 -.0013 .0744 m NOA BRAZ Eccentricity: Used .0000 .0000 .0070 Real .0000 .0000 .0080 m NOA BRMU Used TRM29659.00 dL1 .0000 .0000 .1098 dL2 .0000 .0000 .1280 m NOA BRMU Real TRM29659.00 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA CHAT Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA CHAT Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA GRAZ Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA GRAZ Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA KOKB Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA KOKB Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA KOUR Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA KOUR Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA MAG0 Used ASH700936D_M dL1 .0000 .0000 .1089 dL2 .0000 .0000 .1274 m NOA MAG0 Real ASH700936D_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA MATE Used TRM29659.00 dL1 .0000 .0000 .1098 dL2 .0000 .0000 .1280 m NOA MATE Real TRM29659.00 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA NOUM Used TRM41249.00 dL1 .0000 .0000 .0714 dL2 .0000 .0000 .0682 m NOA NOUM Real TRM41249.00 dL1 .0003 .0005 .0714 dL2 -.0004 .0001 .0682 m NOA POL2 Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA POL2 Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA RIOG Used ASH700936C_M dL1 .0000 .0000 .1089 dL2 .0000 .0000 .1274 m NOA RIOG Real ASH700936C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA SUTH Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA SUTH Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA THTI Used TRM29659.00 dL1 .0000 .0000 .1098 dL2 .0000 .0000 .1280 m NOA THTI Real TRM29659.00 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA TIXI Used ASH700936D_M dL1 .0000 .0000 .1089 dL2 .0000 .0000 .1274 m NOA TIXI Real ASH700936D_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA WUHN Used ASH700936E dL1 .0000 .0000 .1081 dL2 .0000 .0000 .1256 m NOA WUHN Real ASH700936E dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA WUHN Eccentricity: Used -.0094 -.0022 2.3610 Real .0000 .0000 2.3610 m NOA KELY Used ASH701945C_M dL1 .0000 .0000 .1090 dL2 .0000 .0000 .1279 m NOA KELY Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m NOA GOUG Used TRM29659.00 dL1 .0000 .0000 .1098 dL2 .0000 .0000 .1280 m NOA GOUG Real TRM29659.00 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m COD MALD Used LEIAT504 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m COD MALD Real LEIAT504 dL1 .0003 -.0003 .1093 dL2 .0011 .0011 .1282 m COD OHI2 Eccentricity: Used .0000 .0000 .0008 Real .0000 .0000 -.0080 m COD PDEL Used LEIAT504 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m COD PDEL Real LEIAT504 dL1 .0003 -.0003 .1093 dL2 .0011 .0011 .1282 m COD WUHN Eccentricity: Used .0000 .0000 2.3200 Real .0000 .0000 2.3610 m SIO PDEL Used LEIAT504 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO PDEL Real LEIAT504 dL1 .0003 -.0003 .1093 dL2 .0011 .0011 .1282 m SIO QAQ1 Eccentricity: Used .0000 .0000 .0000 Real .0000 .0000 .1206 m SIO KELY Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO KELY Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO KOUR Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO KOUR Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO ALRT Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO ALRT Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO THU3 Used ASH701073.1 dL1 .0014 -.0010 .1089 dL2 .0010 .0005 .1274 m SIO THU3 Real ASH701073.1 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO THU2 Used ASH701073.1 dL1 .0014 -.0010 .1089 dL2 .0010 .0005 .1274 m SIO THU2 Real ASH701073.1 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO EISL Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO EISL Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO HOLM Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO HOLM Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO SACH Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO SACH Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO INVK Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO INVK Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO KOKB Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO KOKB Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO CHAT Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO CHAT Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO AUCK Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO AUCK Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO PIMO Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO PIMO Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO TCMS Used LEIAT504 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO TCMS Real LEIAT504 dL1 .0003 -.0003 .1093 dL2 .0011 .0011 .1282 m SIO POL2 Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO POL2 Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO KIRU Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO KIRU Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO SUTH Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO SUTH Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO TRO1 Used ASH701073.1 dL1 .0014 -.0010 .1089 dL2 .0010 .0005 .1274 m SIO TRO1 Real ASH701073.1 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO GRAZ Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m SIO GRAZ Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m SIO NYA1 Used ASH701073.1 dL1 .0014 -.0010 .1089 dL2 .0010 .0005 .1274 m SIO NYA1 Real ASH701073.1 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m ESA AUCK Eccentricity: Used .0000 .0000 .0018 Real .0000 .0000 .0016 m ESA GRAZ Used ASH701945C_M dL1 .0003 -.0002 .1081 dL2 .0009 .0005 .1256 m ESA GRAZ Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m ESA KOUR Used ASH701945C_M dL1 .0003 -.0002 .1081 dL2 .0009 .0005 .1256 m ESA KOUR Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m ESA NNOR Used ASH701945C_M dL1 .0003 -.0002 .1081 dL2 .0009 .0005 .1256 m ESA NNOR Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m ESA KIRU Used ASH701945C_M dL1 .0003 -.0002 .1081 dL2 .0009 .0005 .1256 m ESA KIRU Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m ESA PIMO Used ASH701945C_M dL1 .0003 -.0002 .1081 dL2 .0009 .0005 .1256 m ESA PIMO Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m HISTORY and PROCEDURES ---------------------- 0.0 Starting Week 998 we adopted full checking of the center sinex headers and we correct the solutions for differences between the headers and a modified version of IGS.SNX. (The modifications are to put full precision antenna L1/L2 offsets and to correct the WUHN entry. The station log for this site shows height to BCR not ARP). A new error reporting block has been added below. We also have removed some of the routine documention in this summary. 0.1 Starting week 993 we started to add corrections for the pole-tide to the SIO, NGS, and ESA sinex. According to the analysis descriptions none of these centers apply the pole tide correction. Starting with the re-submission of week 992, we corrected the LOD values in JPL sinex files from regularized LOD (should be called LODR in the SINEX file) to standard LOD. (Since starting multiday polar motion combinations we have been correcting the sign error in the JPL LOD values. 0.2 Starting week 989 we include as Section 5.0 of this summary, the Earth rotation parameter estimates from the constrained combination solution in the IERS format. 0.3 Starting Week 980 we include multiday polar motion/UT1 estimates into our analysis. We also no longer need to deconstrain the AC sinex files although to add back into the covariance matrices at rotational uncertainity which is coupled between station positions and EOPs. 0.4 Starting Week 0943 we base the analysis on the ITRF96 system and the reference site list for the ITRF96 system. The increase in the number of sites used to obtain analysis variances increases the variance factors for all centers by factors between 2 and 4. The Chi**2 for the center residuals is now much closer to 1.0 0.5 Starting Week 0931 we added a new residual file to our submissions. A description of the contents of the file is given in the file itself. We also changed the treatment of the translation of the individual AC solutions. The generation of the weighting factors and the constrained combined solution remains unchanged. However, in the unconstrained analyses (used for AC comparisons) we now allow explicit translation and scale parameters in the solution. The net effect is to generate more realisitic sigmas for the center of mass position estimates and to make the coordinate estimates immune to real center of mass translations and scale changes. 0.6 Starting Week 0901 we started using a new apriori file not Non-ITRF94 coordinates based on the analysis of week 0822-0900 sinex files. 1.0 Analysis Procedures: (1) Each centers sinex solutions are de-constrained by adding back in a rotational uncertainty. (2) Covariance matrices are re-scaled by computing the chi**2/freedom of the position residuals to the reference sites in IGS00 from an loosely constrained solution that is rotated and translated on to the IGS00 system. During the rotation/translation step, outliers (4-sigma based on fit) are removed and this new scheme is more robust when some of the reference sites have moved (due earthquakes and/or equipment changes). (2o) This procedure was replaced Week 1203 with the one described above. Covariance matrices from each center are re-scaled to generate unit increment in chi square per degree in the tight constraints solution. The values are are based in the chi**2 per degree of freedom increment when the loosely constrained solution is constrained to the ITRF1996 coordinates of the 55 Reference sites. Orientation changes are estimated in this step, but translations and scale are NOT estimated. (3) The tight solution is generated with the following constraints on the core sites. Starting Week 0858, ITRF94 is used for the coordinate system. Starting Week 0878, we changed the site selection here to use WTZR and GOL2. Starting Week 0897 we stopped using MADR as a core site. We continue not use MADR in the reference site list. Earth rotation parameters are estimated for each center (even when not given in the original SINEX files. In this case the partial derivatives are computed from the station coordinates). (4) When the combined and center solutions are compared to ITRF97, the heights are given a variance 10 times larger than the horizontal coordinates. The same variance ratio is used when the RMS to ITRF97 core sites is computed. (5) Starting Week 0826, we show the differences in the coordinates for five non-core sites, in remote areas. Four of these sites are processed by all centers. These sites are not used in the RMS calculations or the transformation estimation to the 13 core sites. The change in procedure was because FORT is no longer being processed by all centers. AREQ has been added to the list for this reason. After Week 0943, when the reference site list increased we no long summarize additional sites. (6) Starting Week 0826, we start to show a comparison of each centers results with the combined solution for the week. When the constraints are applied to loose combined solution to translate, rotate and scale it to the ITRF97, the constraints are actually applied using the full covariance matrix of the combined solution (rather than simply directly applying the transformations to the coordinates). The approach we use constrains the center of mass to have zero variance relative to ITRF97. The result of this is that the combined solution has the same center of mass position and scale as ITRF97, and therefore when each of the centers are compared to the combined solution, they generate very similar translations and scales as they do the ITRF97. Had we simply applied the transformations to the coordinates, the translations and scale would have been the difference between the combined translations and scale and the individual center's translations and scale. This new section is numbered 4.0. (7) Starting Week 868, we updated the coordinates of sites not included in the ITRF94 coordinate files. This introduces a discontinuity in the the adjustments to some of the "isolated" sites shown below. 2.0 COMBINED FIT TO IGS00 Transformation of loose solution COMBINED to IGS00 ----------------------------------------------- For 39 Sites, RMS after 7 parameter transformation 2.9 mm COMBINED wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 1.8 2.5 -9.5 2.7 -3.3 3.9 -1.573 0.123 COMBINED CoM Adjustments to core site positions for COMBINED SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -1.5 0.7 -0.7 0.9 2.2 2.6 COMBINED wrt IGS00 MAS1 -0.7 0.8 -2.1 1.2 -5.3 3.1 COMBINED wrt IGS00 FORT -2.4 1.3 8.4 2.1 2.3 6.2 COMBINED wrt IGS00 KOUR 3.5 1.0 3.3 1.6 3.3 4.7 COMBINED wrt IGS00 BRMU -0.9 0.9 -1.0 1.2 -14.6 3.9 COMBINED wrt IGS00 SANT -0.6 1.3 2.4 1.4 -7.8 3.7 COMBINED wrt IGS00 WES2 -2.8 1.0 -3.5 1.5 -6.2 4.0 COMBINED wrt IGS00 GODE 0.3 0.8 -6.6 1.2 -4.9 3.4 COMBINED wrt IGS00 ALGO 1.7 0.7 -1.5 0.8 0.9 2.6 COMBINED wrt IGS00 NLIB 2.8 0.9 -1.8 1.4 7.7 3.7 COMBINED wrt IGS00 MDO1 5.4 0.9 0.6 1.6 11.6 4.0 COMBINED wrt IGS00 YELL 0.9 0.9 1.6 0.9 0.9 2.9 COMBINED wrt IGS00 GOL2 6.4 1.2 2.9 2.7 9.6 5.1 COMBINED wrt IGS00 DRAO 3.4 0.9 2.6 1.1 1.3 3.0 COMBINED wrt IGS00 CHAT -0.4 1.0 0.8 1.2 6.5 3.5 COMBINED wrt IGS00 AUCK -0.5 1.0 -3.8 1.2 7.7 3.5 COMBINED wrt IGS00 MCM4 1.3 1.2 0.1 1.1 -5.1 4.8 COMBINED wrt IGS00 MAC1 2.5 1.0 -4.3 1.1 2.3 3.6 COMBINED wrt IGS00 HOB2 -2.7 0.9 -1.6 1.1 12.4 3.4 COMBINED wrt IGS00 TSKB -0.7 1.1 7.0 1.2 11.6 3.4 COMBINED wrt IGS00 PERT -2.8 1.1 -1.9 1.5 -3.3 4.6 COMBINED wrt IGS00 CAS1 -0.8 1.0 -1.5 1.1 4.1 3.5 COMBINED wrt IGS00 IRKT 3.3 1.3 1.9 1.2 3.1 3.9 COMBINED wrt IGS00 LHAS -0.1 1.0 -0.9 1.4 13.9 4.3 COMBINED wrt IGS00 DAV1 -3.1 1.1 -1.0 1.2 -0.6 3.8 COMBINED wrt IGS00 KERG -6.1 6.4 0.3 12.6 -30.9 19.2 COMBINED wrt IGS00 KIT3 -1.3 0.9 5.8 1.2 -3.2 3.3 COMBINED wrt IGS00 TROM 4.4 1.1 -1.1 1.4 -11.2 4.3 COMBINED wrt IGS00 MATE -0.2 0.9 -0.1 1.1 -9.0 3.5 COMBINED wrt IGS00 GRAZ -0.2 0.8 -3.6 0.9 -5.7 2.8 COMBINED wrt IGS00 POTS -2.1 0.7 -0.4 0.8 -5.7 2.5 COMBINED wrt IGS00 WTZR -0.6 0.7 0.9 0.7 -7.3 2.3 COMBINED wrt IGS00 ONSA -1.8 0.7 -1.2 0.7 4.9 2.3 COMBINED wrt IGS00 NYAL -6.6 0.8 -2.2 0.9 -4.4 3.8 COMBINED wrt IGS00 WSRT 0.7 0.7 -2.0 0.7 -3.8 2.2 COMBINED wrt IGS00 Reference sites NOT used MADR 17.8 1.9 -43.5 1.8 -2.3 7.3 COMBINED wrt IGS00 3.0 CENTER FITS TO IGS00 CENTER COD ------------------- VARIANCE RESCALING FACTOR FOR COD 871.20 Transformation of loose solution COD to IGS00 ----------------------------------------------- For 33 Sites, RMS after 7 parameter transformation 2.7 mm COD wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -5.5 6.7 -4.7 6.9 1.7 8.6 -1.482 0.329 COD CoM Adjustments to core site positions for COD SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -0.9 2.6 0.8 2.3 0.7 9.1 COD wrt IGS00 MAS1 -0.9 3.0 -0.4 3.0 -12.1 12.6 COD wrt IGS00 FORT -6.6 4.8 6.6 5.1 -24.0 23.5 COD wrt IGS00 KOUR 0.8 2.8 3.0 2.8 1.9 10.1 COD wrt IGS00 BRMU -0.9 2.6 -2.1 2.4 -17.8 10.1 COD wrt IGS00 SANT -0.5 3.6 1.3 2.9 -6.5 8.4 COD wrt IGS00 WES2 -2.0 3.3 -4.2 2.7 -12.5 12.3 COD wrt IGS00 GODE -1.0 2.5 -6.3 2.2 -2.1 8.8 COD wrt IGS00 ALGO 0.1 2.8 -0.7 2.2 3.1 9.1 COD wrt IGS00 NLIB 1.0 3.2 -0.6 2.6 10.5 12.1 COD wrt IGS00 MDO1 3.3 2.6 2.1 2.7 14.1 10.7 COD wrt IGS00 PIE1 6.5 2.9 -0.4 2.9 16.5 11.9 COD wrt IGS00 YELL 1.2 3.2 3.3 2.3 1.4 9.9 COD wrt IGS00 DRAO 3.5 2.7 4.1 2.3 3.8 8.4 COD wrt IGS00 CHAT -1.0 2.6 0.7 2.3 6.2 8.8 COD wrt IGS00 AUCK -0.9 2.6 -3.3 2.4 9.3 8.8 COD wrt IGS00 MCM4 2.8 3.2 0.1 2.6 -30.0 16.2 COD wrt IGS00 MAC1 3.0 2.6 -2.6 1.9 9.2 8.2 COD wrt IGS00 TIDB -4.2 2.7 -2.5 2.2 12.5 10.1 COD wrt IGS00 HOB2 -2.6 2.5 -0.3 2.0 10.1 8.3 COD wrt IGS00 TSKB -1.4 4.0 5.5 3.2 -1.8 12.9 COD wrt IGS00 CAS1 -2.2 2.7 -0.5 2.2 -0.9 8.9 COD wrt IGS00 IRKT 3.1 3.5 0.1 2.7 -9.5 10.5 COD wrt IGS00 LHAS 2.4 3.4 -0.1 3.3 9.7 13.9 COD wrt IGS00 DAV1 -3.3 2.7 -2.2 2.6 -15.2 8.4 COD wrt IGS00 KIT3 -1.0 3.5 3.3 3.2 1.0 13.8 COD wrt IGS00 MATE 1.1 3.0 -0.4 2.7 -7.9 11.8 COD wrt IGS00 GRAZ -0.2 2.6 -2.2 2.1 -2.2 8.3 COD wrt IGS00 POTS -1.7 2.5 0.5 1.9 0.4 7.3 COD wrt IGS00 WTZR -0.4 2.4 1.6 1.9 -2.5 7.3 COD wrt IGS00 ONSA -1.5 2.8 -0.2 2.1 7.8 8.6 COD wrt IGS00 WSRT 0.4 2.4 -1.6 1.9 6.1 6.7 COD wrt IGS00 Reference sites NOT used MADR 18.8 2.9 -42.4 2.5 -1.7 10.6 COD wrt IGS00 CENTER EMR ------------------- VARIANCE RESCALING FACTOR FOR EMR 37.80 Transformation of loose solution EMR to IGS00 ----------------------------------------------- For 16 Sites, RMS after 7 parameter transformation 2.3 mm EMR wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 14.1 12.9 7.5 13.8 -8.2 14.6 -1.610 0.533 EMR CoM Adjustments to core site positions for EMR SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MAS1 1.2 2.7 -1.6 3.3 -12.6 10.9 EMR wrt IGS00 FORT -1.6 5.7 5.2 11.7 10.5 26.5 EMR wrt IGS00 ALGO -0.9 2.5 -1.6 2.4 -6.3 8.9 EMR wrt IGS00 PIE1 4.2 2.5 -3.5 2.6 3.8 9.7 EMR wrt IGS00 YELL 1.2 2.8 0.1 2.1 -1.9 9.9 EMR wrt IGS00 DRAO 0.8 2.5 0.3 2.1 -3.2 8.4 EMR wrt IGS00 AUCK -0.7 2.9 0.1 2.5 5.0 10.5 EMR wrt IGS00 MCM4 -3.8 4.9 3.6 3.9 10.2 22.8 EMR wrt IGS00 MAC1 4.0 3.9 -2.2 2.9 3.5 14.0 EMR wrt IGS00 HOB2 -3.3 4.7 0.0 3.8 9.1 16.6 EMR wrt IGS00 CAS1 -2.2 3.6 -1.5 3.1 3.3 12.8 EMR wrt IGS00 IRKT 3.5 3.6 1.7 2.8 10.4 11.5 EMR wrt IGS00 BAHR 3.6 2.6 4.8 2.7 -4.4 10.1 EMR wrt IGS00 MATE 0.5 2.9 -1.0 2.8 -12.9 11.2 EMR wrt IGS00 ONSA -2.4 2.6 -1.0 2.1 1.4 8.8 EMR wrt IGS00 NYAL -7.0 2.4 -2.7 2.1 -4.9 12.6 EMR wrt IGS00 Reference sites NOT used CENTER JPL ------------------- VARIANCE RESCALING FACTOR FOR JPL 27.70 Transformation of loose solution JPL to IGS00 ----------------------------------------------- For 24 Sites, RMS after 7 parameter transformation 3.1 mm JPL wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 14.0 8.4 -4.6 8.8 -11.0 9.0 -0.896 0.371 JPL CoM Adjustments to core site positions for JPL SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MAS1 2.3 3.1 -1.4 3.1 -4.1 12.8 JPL wrt IGS00 FORT -0.8 2.8 4.2 4.1 -4.4 13.8 JPL wrt IGS00 BRAZ -5.6 2.4 -1.7 2.8 -11.2 9.8 JPL wrt IGS00 BRMU 1.0 2.0 -1.6 1.9 -24.2 7.6 JPL wrt IGS00 SANT 2.5 2.7 1.5 2.3 12.3 8.3 JPL wrt IGS00 ALGO 2.8 2.1 -1.4 1.7 7.0 7.0 JPL wrt IGS00 YELL 1.5 2.4 1.9 2.0 -4.8 8.1 JPL wrt IGS00 CHAT -1.1 2.8 2.5 2.7 1.4 9.2 JPL wrt IGS00 AUCK 1.2 3.6 -4.1 3.6 -4.1 14.0 JPL wrt IGS00 MCM4 -0.9 4.1 3.0 3.6 8.2 17.9 JPL wrt IGS00 HOB2 -1.2 5.2 -0.1 3.9 -0.3 18.5 JPL wrt IGS00 TSKB -1.0 2.4 3.6 1.9 18.8 8.2 JPL wrt IGS00 PERT -2.5 2.3 -1.6 2.2 -8.5 8.7 JPL wrt IGS00 CAS1 -0.3 4.5 -1.9 3.4 1.3 16.4 JPL wrt IGS00 IRKT 2.2 2.8 -0.5 2.3 7.4 9.2 JPL wrt IGS00 LHAS 1.9 2.2 -2.3 2.1 16.4 9.4 JPL wrt IGS00 DAV1 -1.9 2.9 1.1 2.7 -2.8 10.0 JPL wrt IGS00 KIT3 -0.9 2.0 -2.4 1.8 9.2 7.6 JPL wrt IGS00 BAHR 2.8 1.9 5.6 2.0 -7.4 7.7 JPL wrt IGS00 MATE 0.3 14.2 -4.9 11.9 0.3 43.0 JPL wrt IGS00 WTZR -0.8 2.0 -0.3 1.8 -12.5 6.8 JPL wrt IGS00 ONSA -3.7 2.1 -2.0 1.7 3.2 7.0 JPL wrt IGS00 Reference sites NOT used CENTER GFZ ------------------- VARIANCE RESCALING FACTOR FOR GFZ 164.50 Transformation of loose solution GFZ to IGS00 ----------------------------------------------- For 36 Sites, RMS after 7 parameter transformation 2.8 mm GFZ wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 2.0 3758.5 -0.7 3758.5 1.3 3758.5 -1.258 0.348 GFZ CoM Adjustments to core site positions for GFZ SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -1.7 2.0 -0.9 1.9 2.6 6.4 GFZ wrt IGS00 MAS1 1.0 3.0 -1.2 3.3 -5.7 13.1 GFZ wrt IGS00 FORT -1.1 3.3 6.8 4.0 -3.1 15.6 GFZ wrt IGS00 BRAZ -5.7 3.4 2.9 3.5 -15.0 13.6 GFZ wrt IGS00 KOUR 5.3 4.5 6.7 5.9 12.4 21.3 GFZ wrt IGS00 BRMU -0.1 3.5 -1.0 3.3 -17.5 13.5 GFZ wrt IGS00 SANT 4.3 3.7 1.9 3.4 4.8 11.4 GFZ wrt IGS00 WES2 -1.8 4.2 -4.7 3.3 -10.2 14.7 GFZ wrt IGS00 GODE 0.5 3.2 -7.2 3.1 -9.1 11.6 GFZ wrt IGS00 ALGO 0.1 2.2 -1.0 1.9 -3.5 7.0 GFZ wrt IGS00 NLIB 1.4 3.7 -0.6 3.3 -0.2 13.5 GFZ wrt IGS00 MDO1 4.7 3.3 0.8 3.6 6.9 13.7 GFZ wrt IGS00 PIE1 6.7 3.8 -1.8 3.8 8.2 14.6 GFZ wrt IGS00 YELL -1.8 3.6 3.1 2.6 -0.3 11.8 GFZ wrt IGS00 DRAO 1.5 3.2 4.7 2.6 0.2 9.9 GFZ wrt IGS00 CHAT 0.2 2.2 1.3 2.2 4.1 7.0 GFZ wrt IGS00 AUCK 0.0 2.4 -3.5 2.4 3.6 8.5 GFZ wrt IGS00 MCM4 1.7 4.0 1.5 3.5 -18.4 19.4 GFZ wrt IGS00 MAC1 4.2 2.7 -3.1 2.4 -1.9 8.5 GFZ wrt IGS00 TIDB -4.4 2.4 -3.7 2.2 6.7 8.4 GFZ wrt IGS00 HOB2 -3.3 3.3 0.8 3.0 6.5 11.0 GFZ wrt IGS00 TSKB -4.3 4.4 7.1 3.6 10.7 15.3 GFZ wrt IGS00 PERT -1.2 3.5 -2.0 3.6 -16.1 14.4 GFZ wrt IGS00 CAS1 -0.2 3.2 2.1 2.9 4.3 11.1 GFZ wrt IGS00 IRKT -1.3 4.6 1.9 3.3 12.2 13.8 GFZ wrt IGS00 LHAS -1.1 3.6 0.9 3.5 28.2 16.0 GFZ wrt IGS00 DAV1 -3.1 3.3 0.6 3.2 -11.4 11.3 GFZ wrt IGS00 KIT3 -2.5 3.9 3.7 3.6 7.0 15.4 GFZ wrt IGS00 MATE 0.7 3.9 -1.4 3.5 -12.0 15.3 GFZ wrt IGS00 GRAZ 0.1 3.4 -4.3 2.8 0.9 10.3 GFZ wrt IGS00 POTS -1.7 3.0 -1.0 2.3 -5.5 9.3 GFZ wrt IGS00 WTZR -0.2 2.9 0.6 2.4 -4.2 9.3 GFZ wrt IGS00 ONSA -1.0 3.1 -1.4 2.4 5.4 10.0 GFZ wrt IGS00 NYAL -5.3 3.0 -5.7 2.7 8.2 13.8 GFZ wrt IGS00 WSRT 0.4 3.1 -2.9 2.4 1.5 9.7 GFZ wrt IGS00 Reference sites NOT used MADR 17.7 3.4 -43.6 3.0 -2.4 11.8 GFZ wrt IGS00 CENTER SIO ------------------- VARIANCE RESCALING FACTOR FOR SIO 4.72 Transformation of loose solution SIO to IGS00 ----------------------------------------------- For 39 Sites, RMS after 7 parameter transformation 3.4 mm SIO wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -7.3 6.6 7.8 6.4 -33.8 15.2 -1.575 0.265 SIO CoM Adjustments to core site positions for SIO SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -1.0 1.3 -0.8 1.7 3.3 4.1 SIO wrt IGS00 MAS1 1.6 1.5 -3.0 2.4 1.6 4.6 SIO wrt IGS00 FORT 3.3 3.3 9.4 4.8 9.3 11.8 SIO wrt IGS00 BRMU 1.8 2.3 1.0 4.0 -4.1 7.6 SIO wrt IGS00 SANT 4.8 5.3 -1.5 6.4 -23.4 11.5 SIO wrt IGS00 WES2 0.4 2.3 0.1 3.6 -4.1 6.5 SIO wrt IGS00 GODE 3.2 2.3 -4.6 3.6 -1.2 6.3 SIO wrt IGS00 ALGO 1.7 2.0 -1.3 3.1 2.7 5.6 SIO wrt IGS00 NLIB 2.5 2.1 -0.9 3.4 11.8 6.4 SIO wrt IGS00 YELL -3.5 2.3 4.1 2.9 7.4 5.5 SIO wrt IGS00 DRAO 1.2 2.4 8.2 3.5 8.2 6.2 SIO wrt IGS00 CHAT 2.3 3.0 0.9 4.0 2.2 7.5 SIO wrt IGS00 AUCK 0.5 2.9 -2.7 4.6 1.6 7.2 SIO wrt IGS00 MCM4 4.1 2.0 -0.4 2.2 -8.9 6.8 SIO wrt IGS00 MAC1 4.6 2.4 -4.8 3.1 0.1 6.9 SIO wrt IGS00 TIDB -5.6 3.3 -3.9 4.1 7.2 8.1 SIO wrt IGS00 HOB2 -1.9 2.6 -0.8 3.8 14.6 6.3 SIO wrt IGS00 TSKB -1.9 2.7 7.5 3.6 -1.9 6.1 SIO wrt IGS00 PERT -5.8 2.9 -3.9 4.5 -3.5 8.4 SIO wrt IGS00 CAS1 2.2 2.1 -0.7 2.8 6.2 6.5 SIO wrt IGS00 IRKT -0.7 3.3 -2.5 4.6 -1.9 8.7 SIO wrt IGS00 LHAS -3.3 2.8 -3.3 4.8 8.1 9.6 SIO wrt IGS00 DAV1 -1.4 2.6 2.3 3.1 -0.3 7.0 SIO wrt IGS00 KIT3 -2.7 1.8 7.2 2.6 -7.2 5.0 SIO wrt IGS00 TROM 1.1 2.1 0.0 2.5 -4.8 6.5 SIO wrt IGS00 MATE 1.0 1.5 1.0 1.8 -7.5 4.7 SIO wrt IGS00 GRAZ 0.8 1.4 -3.0 1.5 -5.2 4.1 SIO wrt IGS00 POTS -1.5 1.3 -0.2 1.4 -4.3 3.6 SIO wrt IGS00 WTZR 0.3 1.3 1.4 1.4 -7.1 3.5 SIO wrt IGS00 ONSA -0.9 1.2 -1.2 1.3 6.9 3.4 SIO wrt IGS00 NYAL -6.5 2.0 -3.7 2.3 -2.2 6.3 SIO wrt IGS00 WSRT 1.1 1.1 -2.2 1.2 -4.4 3.1 SIO wrt IGS00 Reference sites NOT used CENTER NGS ------------------- VARIANCE RESCALING FACTOR FOR NGS 463.00 Transformation of loose solution NGS to IGS00 ----------------------------------------------- For 37 Sites, RMS after 7 parameter transformation 6.1 mm NGS wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 5.2 14.4 12.7 14.8 45.4 44.6 -1.728 0.709 NGS CoM Adjustments to core site positions for NGS SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -3.4 2.9 -3.6 4.6 -1.6 9.1 NGS wrt IGS00 MAS1 -3.3 4.0 -12.4 6.8 -16.5 11.9 NGS wrt IGS00 FORT 16.0 9.1 -7.2 14.9 17.4 21.8 NGS wrt IGS00 BRAZ 15.9 12.2 -5.7 15.6 -4.9 17.8 NGS wrt IGS00 BRMU -0.6 3.4 1.1 5.4 12.6 11.2 NGS wrt IGS00 WES2 -5.7 3.2 0.0 5.3 22.6 10.6 NGS wrt IGS00 GODE 0.3 2.9 -1.6 4.8 25.0 10.6 NGS wrt IGS00 ALGO 0.5 2.9 2.6 4.8 25.7 9.9 NGS wrt IGS00 NLIB 3.6 2.9 5.5 5.2 34.8 11.0 NGS wrt IGS00 YELL 0.5 3.3 1.6 4.8 9.9 10.1 NGS wrt IGS00 GOL2 8.6 4.1 10.5 6.7 26.6 12.6 NGS wrt IGS00 DRAO 3.8 3.4 3.5 5.6 20.2 10.8 NGS wrt IGS00 CHAT 4.4 3.7 -4.4 6.7 -1.3 12.2 NGS wrt IGS00 AUCK 2.2 4.0 -9.1 6.1 7.8 11.8 NGS wrt IGS00 MCM4 -0.2 5.9 -6.6 6.7 -4.5 15.1 NGS wrt IGS00 MAC1 2.9 2.6 -10.5 4.8 5.9 11.4 NGS wrt IGS00 HOB2 -2.2 2.5 -7.9 4.1 5.2 10.4 NGS wrt IGS00 PERT -4.7 4.3 4.6 5.8 19.2 10.5 NGS wrt IGS00 CAS1 7.5 4.4 -8.9 5.8 7.2 11.4 NGS wrt IGS00 IRKT -4.5 5.2 1.8 7.0 -15.3 12.3 NGS wrt IGS00 DAV1 8.7 5.6 -3.3 7.0 2.3 12.5 NGS wrt IGS00 TROM 7.7 2.7 0.0 3.2 -14.2 9.4 NGS wrt IGS00 MATE -4.6 3.2 0.3 5.3 -20.5 12.4 NGS wrt IGS00 GRAZ -1.7 2.5 -4.7 3.8 -24.1 9.4 NGS wrt IGS00 POTS -2.5 2.4 -1.5 3.5 -21.0 8.9 NGS wrt IGS00 WTZR -1.2 2.4 0.6 3.6 -25.2 8.9 NGS wrt IGS00 ONSA -0.9 2.4 -2.9 3.2 -9.5 8.7 NGS wrt IGS00 NYAL -2.4 3.2 -1.1 3.3 -11.0 10.9 NGS wrt IGS00 WSRT 0.8 2.4 -2.9 3.4 -23.1 8.5 NGS wrt IGS00 Reference sites NOT used MADR 14.1 4.9 -44.6 9.9 1.2 22.1 NGS wrt IGS00 CENTER ESA ------------------- VARIANCE RESCALING FACTOR FOR ESA 68.88 Transformation of loose solution ESA to IGS00 ----------------------------------------------- For 29 Sites, RMS after 7 parameter transformation 5.2 mm ESA wrt IGS00 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 17.7 7.1 -22.3 7.2 12.3 20.7 -2.755 0.382 ESA CoM Adjustments to core site positions for ESA SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL 0.0 2.1 -5.8 4.0 7.4 7.1 ESA wrt IGS00 MAS1 -3.7 2.3 -8.2 5.4 -4.3 10.0 ESA wrt IGS00 KOUR -0.2 2.3 -2.0 4.9 28.7 9.6 ESA wrt IGS00 WES2 -5.0 2.6 2.1 5.4 3.6 11.1 ESA wrt IGS00 GODE -1.6 1.8 -0.9 3.6 -2.5 7.0 ESA wrt IGS00 ALGO 1.3 1.9 -0.1 3.4 6.7 6.6 ESA wrt IGS00 NLIB 3.6 2.2 2.0 4.6 9.4 8.6 ESA wrt IGS00 MDO1 5.4 2.0 3.0 5.0 7.6 9.4 ESA wrt IGS00 PIE1 8.8 2.1 4.0 4.7 14.4 8.6 ESA wrt IGS00 YELL 8.1 2.6 5.1 3.9 1.1 8.2 ESA wrt IGS00 DRAO 7.9 2.2 2.4 3.8 -2.4 6.7 ESA wrt IGS00 TSKB -9.9 3.2 3.0 5.3 5.5 8.5 ESA wrt IGS00 CAS1 0.1 4.0 -10.8 5.2 8.7 10.9 ESA wrt IGS00 IRKT -1.8 4.0 2.1 6.9 3.9 11.5 ESA wrt IGS00 LHAS -9.3 2.8 1.6 6.0 9.8 11.2 ESA wrt IGS00 KERG 4.6 6.4 0.6 12.3 -5.5 19.5 ESA wrt IGS00 KIT3 -2.3 2.6 7.4 6.1 9.2 11.7 ESA wrt IGS00 BAHR 3.6 1.8 10.8 4.2 3.0 7.4 ESA wrt IGS00 GRAZ 0.8 2.3 -5.7 4.3 -3.1 7.7 ESA wrt IGS00 POTS -0.3 1.9 -1.8 3.1 -10.8 6.5 ESA wrt IGS00 WTZR 1.1 2.0 -1.1 3.6 -5.1 6.8 ESA wrt IGS00 ONSA -0.6 2.0 -4.5 3.3 -3.4 7.0 ESA wrt IGS00 NYAL -6.5 2.6 -0.7 2.9 -18.7 9.1 ESA wrt IGS00 WSRT 2.3 1.9 -3.2 3.1 2.1 6.3 ESA wrt IGS00 Reference sites NOT used 4.0 CENTER FITS TO COMBINED SOLUTION CENTER COD ------------------- VARIANCE RESCALING FACTOR FOR COD 871.20 Transformation of loose solution COD to COMB ----------------------------------------------- For 37 Sites, RMS after 7 parameter transformation 1.7 mm COD wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -5.4 6.7 -5.1 6.9 2.2 8.6 -1.772 0.305 COD CoM Adjustments to core site positions for COD SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL 0.7 2.6 1.7 2.4 -0.1 9.1 COD wrt COMB MAS1 0.0 3.0 1.9 3.1 -5.3 12.7 COD wrt COMB FORT -4.0 4.7 -1.9 5.0 -24.7 23.5 COD wrt COMB BRAZ -1.1 3.2 -2.0 3.0 0.5 11.3 COD wrt COMB KOUR -2.6 2.7 -0.4 2.8 0.1 10.1 COD wrt COMB BRMU 0.3 2.6 -1.4 2.4 -1.9 10.1 COD wrt COMB SANT 0.0 3.4 -1.2 2.8 3.1 8.4 COD wrt COMB WES2 1.3 3.3 -1.2 2.7 -5.1 12.4 COD wrt COMB GODE -1.0 2.5 -0.2 2.2 4.1 8.9 COD wrt COMB ALGO -1.3 2.9 0.3 2.2 3.4 9.1 COD wrt COMB NLIB -1.5 3.2 0.5 2.6 4.0 12.2 COD wrt COMB MDO1 -2.1 2.7 0.8 2.8 3.8 10.7 COD wrt COMB PIE1 -1.7 2.9 0.4 3.0 9.4 11.9 COD wrt COMB YELL 0.4 3.2 0.8 2.3 1.9 10.0 COD wrt COMB DRAO 0.1 2.8 0.7 2.3 3.8 8.4 COD wrt COMB CHAT -1.2 2.6 -0.5 2.5 2.0 8.8 COD wrt COMB AUCK -1.1 2.6 0.0 2.5 3.8 8.9 COD wrt COMB MCM4 1.1 3.2 -0.1 2.6 -22.6 16.3 COD wrt COMB MAC1 -0.1 2.6 1.3 2.0 9.2 8.2 COD wrt COMB TIDB 0.8 2.6 0.7 2.3 -17.1 10.2 COD wrt COMB HOB2 -0.5 2.5 0.9 2.0 0.1 8.4 COD wrt COMB GUAM 0.0 2.9 -1.8 2.6 6.4 10.5 COD wrt COMB TSKB -1.8 3.9 -2.0 3.1 -11.6 12.9 COD wrt COMB YAR1 2.5 2.9 -0.3 2.6 3.2 11.4 COD wrt COMB CAS1 -1.8 2.8 0.5 2.2 -2.6 9.0 COD wrt COMB IRKT -1.2 3.5 -1.8 2.7 -10.9 10.5 COD wrt COMB LHAS 1.6 3.3 0.9 3.3 -2.3 14.0 COD wrt COMB DAV1 -0.4 2.7 -1.6 2.6 -12.2 8.5 COD wrt COMB KIT3 -0.4 3.6 -2.2 3.2 5.9 13.8 COD wrt COMB BAHR -0.9 2.5 -0.2 2.6 -12.5 9.7 COD wrt COMB MALI 3.9 4.8 1.1 6.1 7.2 18.9 COD wrt COMB MATE 1.2 3.1 0.1 2.7 2.7 11.9 COD wrt COMB GRAZ 0.0 2.6 1.8 2.2 5.0 8.4 COD wrt COMB POTS 0.5 2.5 1.4 2.0 7.6 7.4 COD wrt COMB WTZR 0.3 2.5 1.2 2.0 6.3 7.3 COD wrt COMB ONSA 0.4 2.8 1.5 2.1 4.3 8.6 COD wrt COMB WSRT -0.2 2.4 1.0 1.9 11.4 6.7 COD wrt COMB Reference sites NOT used MADR 1.3 3.0 1.4 2.6 2.1 10.6 COD wrt COMB CENTER EMR ------------------- VARIANCE RESCALING FACTOR FOR EMR 37.80 Transformation of loose solution EMR to COMB ----------------------------------------------- For 18 Sites, RMS after 7 parameter transformation 1.8 mm EMR wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 13.9 12.8 6.0 13.8 -8.6 14.7 -1.626 0.500 EMR CoM Adjustments to core site positions for EMR SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MAS1 2.0 2.7 2.6 3.3 -7.1 11.0 EMR wrt COMB FORT 0.7 5.7 -1.1 11.7 7.5 26.5 EMR wrt COMB ALGO -1.9 2.5 1.1 2.4 -7.8 8.9 EMR wrt COMB PIE1 -3.1 2.5 -1.4 2.7 -5.7 9.8 EMR wrt COMB YELL 1.5 2.9 -1.3 2.1 -3.0 10.0 EMR wrt COMB DRAO -1.5 2.5 -2.0 2.2 -5.0 8.5 EMR wrt COMB AUCK 0.4 2.9 2.6 2.6 -3.0 10.6 EMR wrt COMB MCM4 -4.5 5.0 1.8 4.0 15.0 23.0 EMR wrt COMB MAC1 2.4 4.0 0.7 2.9 1.2 14.2 EMR wrt COMB HOB2 0.7 4.8 0.6 3.8 -3.0 16.8 EMR wrt COMB GUAM 1.9 2.9 0.1 2.6 -4.8 10.7 EMR wrt COMB TSKB 0.8 3.4 1.3 2.7 15.2 11.7 EMR wrt COMB CAS1 0.5 3.6 -0.4 3.2 -0.5 13.0 EMR wrt COMB IRKT -0.2 3.5 -0.4 2.7 8.6 11.4 EMR wrt COMB BAHR 0.6 2.6 -5.2 2.8 8.1 10.1 EMR wrt COMB MATE 0.4 2.9 0.8 2.9 -3.0 11.3 EMR wrt COMB ONSA -1.0 2.6 1.6 2.1 -2.8 8.8 EMR wrt COMB NYAL -1.1 2.4 0.7 2.1 0.0 12.7 EMR wrt COMB Reference sites NOT used CENTER JPL ------------------- VARIANCE RESCALING FACTOR FOR JPL 27.70 Transformation of loose solution JPL to COMB ----------------------------------------------- For 25 Sites, RMS after 7 parameter transformation 2.3 mm JPL wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 15.1 8.4 -5.5 8.9 -9.1 9.0 -1.100 0.350 JPL CoM Adjustments to core site positions for JPL SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MAS1 2.4 3.1 2.7 3.1 0.4 12.8 JPL wrt COMB FORT -0.5 2.9 -1.7 4.1 -6.7 13.9 JPL wrt COMB BRAZ 1.2 2.5 -2.5 2.8 7.5 9.8 JPL wrt COMB BRMU 0.1 2.0 0.0 1.9 -10.4 7.6 JPL wrt COMB SANT 0.0 2.7 1.0 2.4 21.5 8.4 JPL wrt COMB ALGO -0.7 2.1 0.0 1.7 5.2 7.1 JPL wrt COMB YELL -1.6 2.4 -0.3 1.9 -6.3 8.1 JPL wrt COMB CHAT -2.4 2.8 1.5 2.7 -1.6 9.2 JPL wrt COMB AUCK 0.0 3.6 -0.1 3.6 -8.4 14.0 JPL wrt COMB MCM4 -2.0 4.1 1.5 3.7 16.8 18.0 JPL wrt COMB MAC1 2.7 3.8 -2.3 3.2 -34.3 12.4 JPL wrt COMB HOB2 1.0 5.3 2.0 4.0 -9.0 18.6 JPL wrt COMB GUAM -2.0 2.0 0.1 1.9 -4.9 8.0 JPL wrt COMB TSKB -2.7 2.4 -0.5 1.9 8.5 8.2 JPL wrt COMB PERT 0.1 2.3 2.2 2.2 -1.7 8.7 JPL wrt COMB CAS1 1.7 4.5 0.0 3.5 0.8 16.5 JPL wrt COMB IRKT -2.2 2.8 0.9 2.3 4.7 9.2 JPL wrt COMB LHAS 1.2 2.1 2.3 2.1 3.6 9.4 JPL wrt COMB DAV1 2.5 3.0 3.7 2.7 1.2 10.0 JPL wrt COMB KIT3 0.3 2.0 -4.8 1.8 12.7 7.6 JPL wrt COMB BAHR -0.3 1.9 -2.2 2.0 4.0 7.7 JPL wrt COMB MATE 0.9 14.2 -2.5 11.9 8.7 43.1 JPL wrt COMB WTZR 0.4 2.0 0.6 1.7 -5.9 6.8 JPL wrt COMB ONSA -0.9 2.1 0.6 1.7 -2.6 7.0 JPL wrt COMB NYAL -1.7 1.9 0.1 1.6 -1.1 10.2 JPL wrt COMB Reference sites NOT used CENTER GFZ ------------------- VARIANCE RESCALING FACTOR FOR GFZ 164.50 Transformation of loose solution GFZ to COMB ----------------------------------------------- For 38 Sites, RMS after 7 parameter transformation 1.8 mm GFZ wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 2.2 3758.5 -1.4 3758.5 2.0 3758.5 -1.361 0.331 GFZ CoM Adjustments to core site positions for GFZ SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -0.8 1.9 0.3 2.0 0.2 6.4 GFZ wrt COMB MAS1 1.0 3.0 1.4 3.3 -0.5 13.1 GFZ wrt COMB FORT 0.2 3.3 -1.2 4.1 -5.3 15.6 GFZ wrt COMB BRAZ 2.5 3.4 -0.1 3.5 3.4 13.6 GFZ wrt COMB KOUR 0.8 4.5 3.6 5.9 8.9 21.4 GFZ wrt COMB BRMU 0.3 3.5 0.1 3.3 -3.4 13.6 GFZ wrt COMB SANT 3.6 3.7 -0.5 3.4 13.0 11.4 GFZ wrt COMB WES2 0.7 4.2 -1.3 3.3 -4.6 14.7 GFZ wrt COMB GODE -0.3 3.2 -0.7 3.1 -4.7 11.6 GFZ wrt COMB ALGO -1.9 2.2 0.4 1.9 -4.9 7.0 GFZ wrt COMB NLIB -1.8 3.7 0.9 3.3 -8.4 13.5 GFZ wrt COMB MDO1 -1.3 3.3 -0.3 3.6 -5.1 13.7 GFZ wrt COMB PIE1 -2.0 3.9 -0.7 3.9 -0.7 14.7 GFZ wrt COMB YELL -2.8 3.6 1.0 2.6 -1.6 11.8 GFZ wrt COMB DRAO -2.3 3.2 1.6 2.6 -1.4 9.9 GFZ wrt COMB CHAT 0.2 2.2 -0.6 2.2 -1.0 7.0 GFZ wrt COMB AUCK 0.1 2.4 -0.8 2.5 -2.7 8.5 GFZ wrt COMB MCM4 0.7 4.0 0.5 3.5 -11.7 19.5 GFZ wrt COMB MAC1 1.7 2.8 0.2 2.4 -2.6 8.5 GFZ wrt COMB TIDB 1.2 2.5 -0.8 2.2 -23.7 8.4 GFZ wrt COMB HOB2 -0.5 3.3 1.6 3.0 -4.2 11.0 GFZ wrt COMB GUAM -2.3 2.9 -0.4 3.1 6.8 12.3 GFZ wrt COMB TSKB -4.4 4.4 -0.4 3.6 -0.2 15.3 GFZ wrt COMB PERT 1.6 3.6 -0.4 3.7 -11.0 14.4 GFZ wrt COMB CAS1 1.2 3.2 3.4 2.9 2.0 11.1 GFZ wrt COMB IRKT -5.5 4.6 -0.1 3.4 9.6 13.8 GFZ wrt COMB LHAS -1.8 3.6 1.9 3.6 15.2 16.0 GFZ wrt COMB DAV1 0.5 3.3 2.1 3.2 -9.1 11.4 GFZ wrt COMB KIT3 -2.0 3.9 -1.8 3.6 10.7 15.4 GFZ wrt COMB BAHR -2.3 2.2 0.0 2.4 5.1 8.2 GFZ wrt COMB MALI 3.2 4.1 -2.7 5.2 14.4 17.8 GFZ wrt COMB MATE 0.2 4.0 -0.7 3.5 -2.9 15.3 GFZ wrt COMB GRAZ -0.2 3.4 -0.2 2.8 6.6 10.3 GFZ wrt COMB POTS 0.0 3.0 -0.1 2.3 0.1 9.3 GFZ wrt COMB WTZR -0.1 3.0 0.2 2.4 3.0 9.3 GFZ wrt COMB ONSA 0.5 3.1 0.2 2.4 0.3 10.0 GFZ wrt COMB NYAL 1.2 3.0 -2.9 2.7 12.4 13.8 GFZ wrt COMB WSRT -0.8 3.1 -0.4 2.4 5.2 9.7 GFZ wrt COMB Reference sites NOT used MADR -0.5 3.4 0.4 3.0 -0.2 11.8 GFZ wrt COMB CENTER SIO ------------------- VARIANCE RESCALING FACTOR FOR SIO 4.72 Transformation of loose solution SIO to COMB ----------------------------------------------- For 40 Sites, RMS after 7 parameter transformation 2.0 mm SIO wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -6.3 6.5 7.3 6.4 -32.3 15.2 -1.525 0.248 SIO CoM Adjustments to core site positions for SIO SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -0.1 1.4 -0.9 1.9 -1.0 4.2 SIO wrt COMB MAS1 1.3 1.5 -1.9 2.5 5.0 4.7 SIO wrt COMB FORT 3.8 3.3 -0.2 4.8 5.7 11.8 SIO wrt COMB KOUR 4.4 3.4 2.1 5.9 16.5 13.0 SIO wrt COMB BRMU 1.3 2.3 0.2 4.0 8.6 7.6 SIO wrt COMB SANT 3.1 5.4 -5.4 6.5 -15.7 11.5 SIO wrt COMB WES2 2.1 2.3 1.8 3.7 0.1 6.4 SIO wrt COMB GODE 1.5 2.2 0.1 3.6 1.9 6.3 SIO wrt COMB ALGO -1.3 1.9 -1.6 3.1 -0.1 5.5 SIO wrt COMB NLIB -1.8 2.0 -1.0 3.3 2.4 6.2 SIO wrt COMB MDO1 -0.3 2.3 2.0 4.0 7.2 7.0 SIO wrt COMB PIE1 1.4 2.4 3.4 4.4 2.2 6.2 SIO wrt COMB YELL -5.7 2.2 1.0 2.9 4.8 5.4 SIO wrt COMB GOL2 -0.8 2.3 3.7 4.1 5.3 7.1 SIO wrt COMB DRAO -3.8 2.3 4.0 3.4 5.4 6.1 SIO wrt COMB CHAT 2.1 3.2 -1.9 4.2 -2.8 7.7 SIO wrt COMB AUCK 0.3 2.8 -0.7 4.7 -4.8 7.3 SIO wrt COMB MCM4 3.6 2.2 -1.6 2.3 -2.4 7.0 SIO wrt COMB MAC1 2.2 2.6 -1.9 3.3 -0.6 7.2 SIO wrt COMB TIDB -0.2 3.4 -1.6 4.2 -23.3 8.3 SIO wrt COMB HOB2 0.7 2.5 -0.4 3.7 3.7 6.4 SIO wrt COMB GUAM -4.9 3.8 0.1 7.2 5.7 13.0 SIO wrt COMB TSKB -2.8 2.6 0.0 3.5 -13.9 6.0 SIO wrt COMB PERT -3.3 2.8 -2.6 4.4 1.0 8.4 SIO wrt COMB YAR1 -2.6 2.6 0.1 4.0 3.2 6.7 SIO wrt COMB CAS1 3.7 2.3 0.7 3.0 3.6 6.7 SIO wrt COMB IRKT -4.9 3.3 -4.1 4.6 -6.0 8.7 SIO wrt COMB LHAS -4.1 2.8 -2.4 4.9 -6.3 9.6 SIO wrt COMB DAV1 2.1 2.7 4.0 3.2 1.6 7.2 SIO wrt COMB KIT3 -2.1 1.7 1.4 2.6 -5.2 5.0 SIO wrt COMB BAHR -1.7 2.4 2.8 4.4 5.2 8.3 SIO wrt COMB MALI 4.2 5.0 0.2 9.9 -3.7 20.0 SIO wrt COMB TROM -2.9 2.2 1.0 2.6 4.4 6.6 SIO wrt COMB MATE 0.7 1.5 0.7 1.9 -0.4 4.8 SIO wrt COMB GRAZ 0.8 1.4 0.1 1.6 -1.5 4.2 SIO wrt COMB POTS 0.6 1.4 -0.2 1.5 -0.7 3.7 SIO wrt COMB WTZR 0.8 1.3 0.0 1.5 -1.8 3.6 SIO wrt COMB ONSA 0.9 1.3 -0.5 1.4 -0.1 3.5 SIO wrt COMB NYAL 0.8 2.0 -1.5 2.3 0.1 6.3 SIO wrt COMB WSRT 0.3 1.2 -0.7 1.4 -2.6 3.2 SIO wrt COMB Reference sites NOT used CENTER NGS ------------------- VARIANCE RESCALING FACTOR FOR NGS 463.00 Transformation of loose solution NGS to COMB ----------------------------------------------- For 38 Sites, RMS after 7 parameter transformation 5.6 mm NGS wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 5.9 14.2 10.9 14.7 45.1 44.6 -1.521 0.699 NGS CoM Adjustments to core site positions for NGS SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL -2.3 3.1 -2.7 4.9 -5.5 9.1 NGS wrt COMB MAS1 -3.3 4.0 -9.7 7.0 -13.3 11.9 NGS wrt COMB FORT 16.6 8.6 -14.6 14.7 12.2 21.5 NGS wrt COMB BRAZ 22.9 11.7 -8.2 15.3 10.3 17.4 NGS wrt COMB KOUR 12.9 6.7 -10.0 8.9 22.6 14.7 NGS wrt COMB BRMU -0.9 3.2 2.2 5.3 24.5 10.9 NGS wrt COMB WES2 -3.8 3.1 3.5 5.3 26.3 10.4 NGS wrt COMB GODE -1.0 2.9 4.9 4.8 27.3 10.3 NGS wrt COMB ALGO -2.1 2.9 4.1 4.8 22.4 9.6 NGS wrt COMB NLIB 0.0 2.9 7.2 5.2 24.7 10.7 NGS wrt COMB MDO1 3.2 4.0 10.9 6.5 23.6 12.6 NGS wrt COMB PIE1 2.8 3.8 10.0 6.2 16.9 11.9 NGS wrt COMB YELL -0.8 3.4 0.2 5.0 7.4 9.9 NGS wrt COMB GOL2 1.5 4.1 7.2 6.7 14.8 12.1 NGS wrt COMB DRAO -0.1 3.4 0.9 5.7 17.1 10.4 NGS wrt COMB CHAT 6.2 3.9 -8.7 7.5 -8.9 12.8 NGS wrt COMB AUCK 4.5 3.9 -8.4 6.9 -0.8 12.4 NGS wrt COMB MCM4 0.9 6.7 -10.1 7.8 -0.9 15.4 NGS wrt COMB MAC1 3.1 3.3 -9.2 5.8 2.7 11.8 NGS wrt COMB HOB2 3.8 2.6 -8.4 5.0 -7.7 10.8 NGS wrt COMB GUAM -12.7 6.9 6.6 10.3 -17.8 15.7 NGS wrt COMB TSKB -9.2 5.9 5.2 8.0 -19.2 12.5 NGS wrt COMB PERT 1.8 3.8 6.1 6.0 22.5 10.6 NGS wrt COMB CAS1 12.5 5.4 -7.5 6.6 2.3 11.6 NGS wrt COMB IRKT -6.6 4.8 -0.1 6.6 -18.4 12.0 NGS wrt COMB LHAS -13.9 5.0 11.4 6.5 -17.6 11.1 NGS wrt COMB DAV1 15.4 6.5 -0.1 7.7 1.8 12.7 NGS wrt COMB KIT3 -6.7 4.2 4.9 6.5 -25.4 11.4 NGS wrt COMB BAHR -9.1 4.6 2.1 6.8 -22.5 12.3 NGS wrt COMB MALI -6.3 8.7 -6.4 19.7 -2.2 19.7 NGS wrt COMB TROM 3.3 3.0 0.6 3.4 -3.9 9.5 NGS wrt COMB MATE -4.3 3.3 0.6 5.5 -12.7 12.4 NGS wrt COMB GRAZ -1.4 2.8 -1.1 4.0 -19.5 9.4 NGS wrt COMB POTS -0.2 2.7 -1.2 3.8 -16.5 8.9 NGS wrt COMB WTZR -0.5 2.7 -0.3 3.9 -19.2 9.0 NGS wrt COMB ONSA 1.0 2.7 -1.9 3.5 -15.6 8.7 NGS wrt COMB NYAL 4.1 3.3 0.7 3.5 -7.7 11.0 NGS wrt COMB WSRT 0.0 2.7 -0.9 3.7 -20.6 8.5 NGS wrt COMB Reference sites NOT used MADR -3.9 5.0 -0.9 10.0 1.8 22.2 NGS wrt COMB CENTER ESA ------------------- VARIANCE RESCALING FACTOR FOR ESA 68.88 Transformation of loose solution ESA to COMB ----------------------------------------------- For 31 Sites, RMS after 7 parameter transformation 4.1 mm ESA wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 21.6 7.0 -17.0 7.2 8.8 20.8 -2.002 0.338 ESA CoM Adjustments to core site positions for ESA SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) VILL 2.3 2.1 -6.6 4.1 -0.1 7.1 ESA wrt COMB MAS1 -2.0 2.3 -8.1 5.5 -4.3 10.0 ESA wrt COMB FORT 0.3 3.1 15.8 9.4 19.5 19.4 ESA wrt COMB KOUR -0.3 2.3 -8.7 4.9 22.8 9.7 ESA wrt COMB SANT -2.7 3.9 -11.8 6.0 -29.6 9.3 ESA wrt COMB WES2 -0.2 2.6 5.4 5.4 10.1 11.3 ESA wrt COMB GODE 0.5 1.9 5.6 3.7 3.1 7.2 ESA wrt COMB ALGO 1.3 1.9 1.7 3.4 6.6 6.7 ESA wrt COMB NLIB 3.3 2.3 4.5 4.7 3.3 8.9 ESA wrt COMB MDO1 4.3 2.2 3.6 5.2 -1.8 9.7 ESA wrt COMB PIE1 4.6 2.2 7.1 4.9 8.3 8.8 ESA wrt COMB YELL 8.0 2.6 5.5 4.0 1.4 8.3 ESA wrt COMB DRAO 7.0 2.2 2.2 3.9 -1.6 6.9 ESA wrt COMB AUCK -6.0 7.4 -9.4 14.4 28.3 17.6 ESA wrt COMB TIDB -3.6 2.6 -7.1 4.7 -8.4 8.6 ESA wrt COMB HOB2 -2.1 2.8 -4.7 4.9 26.3 9.2 ESA wrt COMB TSKB -5.0 3.1 1.3 5.6 -9.2 8.5 ESA wrt COMB CAS1 -2.7 3.9 1.9 5.4 -4.8 10.6 ESA wrt COMB IRKT -1.9 4.1 2.8 7.1 -3.9 11.6 ESA wrt COMB LHAS -6.8 2.9 6.4 6.3 -11.8 11.4 ESA wrt COMB KERG 3.5 6.8 5.9 13.5 13.8 19.5 ESA wrt COMB KIT3 0.9 2.7 3.3 6.2 4.8 11.9 ESA wrt COMB BAHR 1.3 1.9 0.8 4.4 4.8 7.6 ESA wrt COMB MALI -5.7 5.6 10.3 13.2 19.9 18.4 ESA wrt COMB TROM 5.1 2.3 -2.8 3.0 -20.1 8.0 ESA wrt COMB GRAZ 2.0 2.4 -3.1 4.3 -3.2 7.8 ESA wrt COMB POTS 3.0 1.9 -2.4 3.2 -10.2 6.6 ESA wrt COMB WTZR 2.8 2.1 -3.0 3.7 -3.3 6.9 ESA wrt COMB ONSA 2.3 2.1 -4.4 3.4 -12.9 7.1 ESA wrt COMB NYAL 0.7 2.6 0.0 2.9 -16.6 9.2 ESA wrt COMB WSRT 2.6 1.9 -2.2 3.2 1.2 6.4 ESA wrt COMB Reference sites NOT used 5.0 EOP ESIMATES FROM THE CONSTRAINED COMBINED SOLUTION MJD Xpole Ypole UT1-UTC LOD Xsig Ysig UTsig LODsig Nr Nf Nt Xrt Yrt Xrtsig Yrtsig XYcorr XUTcor YUTcor (10**-6") (0.1 usec) (10**-6") (0.1 usec) (10**-6"/d) (10**-6"/d) 52721.50 -151092 411288 -3384427 5084 45 47 6701 71 215 0 0 990 2750 76 76 .027 .000 .000 52722.50 -149862 414144 -3388449 3117 41 43 6734 62 215 0 0 1471 2962 57 57 .010 .000 .000 52723.50 -148362 417110 -3390993 2166 41 43 6767 64 215 0 0 1527 2970 55 55 .009 .000 .000 52724.50 -146710 419981 -3393233 2492 41 43 6801 62 215 0 0 1778 2772 56 56 .006 .000 .000 52725.50 -144603 422835 -3396368 3880 41 43 6834 62 215 0 0 2435 2937 55 55 .006 .000 .000 52726.50 -141991 425748 -3400939 5284 42 43 6866 61 215 0 0 2790 2889 57 58 .005 .000 .000 52727.50 -139227 428610 -3406973 6762 45 47 6899 71 215 0 0 2738 2835 76 77 .010 .000 .000