******************************************************************************** MIT ANALYSIS REPORT GPS-WEEK 0836 Dates: 96jan14 to 96jan20 ******************************************************************************** MIT (Massachusetts Institute of Technology) Room 54-618 77 Massachusetts Avenue, Cambridge, MA 02139 e-mail: tah@mtglas.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 MIT0836T.SNX Combined sinex file from all available analysis centers MIT0836T.SUM Name of this summary file 0.0 IMPORTANT NOTE: We continue to apply the height adjustments reported in Week 0830 (corrected) because some centers are not using the station log height values (IISC is the one exception where the station log is incorrect). 1.0 Analysis Procedures: (1) Each centers sinex solutions are de-constrained before combination. Due to numerical stability different new constraints are applied to different centers (see center report below): (2) 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 ITRF1993 coordinates of the 13 core 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 Sig N Sig E Sig U (m) (m) (m) TROM 0.004 0.004 0.004 MADR 0.003 0.003 0.003 KOSG 0.003 0.003 0.005 WETT 0.002 0.002 0.003 HART 0.004 0.004 0.004 ALGO 0.003 0.003 0.003 YELL 0.003 0.003 0.004 GOLD 0.004 0.004 0.005 FAIR 0.003 0.003 0.003 KOKB 0.003 0.003 0.003 SANT 0.004 0.004 0.004 TIDB 0.004 0.004 0.004 YAR1 0.004 0.004 0.005 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) Individual Center comments: EMR: (a) Constraints loosened to +-5 m for positions JPL: (a) Constraints not changed. No constraints given SINEX file but appear to be about 1 meter of the core sites. (b) JPL sinex files are missing the leading zero in the day numbers. These files need to be edited if they are to be read according to Sinex 0.05 formats. GFZ: (a) Constraints loosened to +-5 m for positions. COD: (a) Constraints loosened to +-5 m for positions. SIO: (a) Constraints not changed since the center's constraints are extremely weak. NGS: (a) Constraints loosened to +-0.1 m for positions: Looser constraints generate non-positive definite covariance matrices. (5) When the combined and center solutions are compared to ITRF93, the heights are given a variance 10 times larger than the horizontal coordinates. The same variance ratio is used when the RMS to ITRF93 core sites is computed. (6) 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. (7) 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 ITRF93, 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 ITRF93. The result of this is that the combined solution has the same center of mass position and scale as ITRF93, and therefore when each of the centers are compared to the combined solution, they generate very similar translations and scales as they do the ITRF93. 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. (8) HART has not been used in the core transformation becuase of poor performance. 2.0 COMBINED FIT TO ITRF 1993 Transformation of loose solution COMBINED to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 4.9 mm COMBINED wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 5.9 2.4 4.9 2.3 -13.7 2.4 -0.800 0.728 COMBINED Adjustments to core site positions for COMBINED SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -5.6 0.6 3.9 0.7 17.1 2.6 COMBINED wrt ITRF93 SANT -0.6 1.3 3.5 1.6 8.5 3.3 COMBINED wrt ITRF93 ALGO 5.4 0.6 1.6 0.8 -19.1 2.1 COMBINED wrt ITRF93 YELL -1.7 0.6 3.6 0.6 12.8 2.4 COMBINED wrt ITRF93 GOLD 5.1 0.6 -13.1 0.9 -0.8 3.0 COMBINED wrt ITRF93 FAIR 4.7 0.7 -0.7 0.7 -3.0 3.0 COMBINED wrt ITRF93 KOKB -10.8 1.0 -2.8 1.9 -19.9 4.8 COMBINED wrt ITRF93 TIDB -4.9 0.7 12.7 1.3 -15.3 3.3 COMBINED wrt ITRF93 YAR1 10.2 0.7 -0.3 1.2 8.5 3.5 COMBINED wrt ITRF93 TROM 4.2 0.6 -9.2 0.6 -5.1 3.0 COMBINED wrt ITRF93 WETT -4.4 0.5 2.6 0.6 8.3 2.5 COMBINED wrt ITRF93 KOSG 2.0 0.5 -5.9 0.5 8.2 2.6 COMBINED wrt ITRF93 Core sites NOT used HART 39.4 2.8 20.0 7.6 -14.9 15.0 COMBINED wrt ITRF93 Additional Sites FORT 6.3 1.2 9.6 2.0 -25.1 4.5 COMBINED wrt ITRF93 AREQ 17.2 1.1 1.2 1.8 -10.1 3.4 COMBINED wrt ITRF93 MCM4 -12.6 1.7 -6.9 1.9 0.0 5.2 COMBINED wrt ITRF93 GUAM -7.5 1.2 1.5 2.5 -10.3 3.8 COMBINED wrt ITRF93 KIT3 -0.1 1.2 -5.1 2.1 2.1 3.7 COMBINED wrt ITRF93 3.0 CENTER FITS TO ITRF 1993 CENTER EMR ------------------- VARIANCE RESCALING FACTOR FOR EMR 28.569 Transformation of loose solution EMR to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 5.7 mm EMR wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -24.6 2.7 125.5 2.7 28.2 2.8 -0.656 0.833 EMR Adjustments to core site positions for EMR SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -4.2 3.9 2.9 6.5 -1.0 14.9 EMR wrt ITRF93 SANT -6.1 7.9 4.2 11.0 -3.8 18.2 EMR wrt ITRF93 ALGO 5.2 4.1 -2.0 6.9 -16.7 11.7 EMR wrt ITRF93 YELL -0.8 4.1 10.0 5.8 15.2 12.6 EMR wrt ITRF93 GOLD 7.7 3.7 -9.4 7.1 1.6 16.6 EMR wrt ITRF93 FAIR 11.0 4.6 -4.1 7.2 -11.9 16.0 EMR wrt ITRF93 KOKB -2.1 5.9 0.7 12.0 -14.4 26.7 EMR wrt ITRF93 TIDB -9.9 4.9 15.3 10.7 19.5 19.2 EMR wrt ITRF93 YAR1 7.9 4.5 -6.2 11.4 35.5 20.1 EMR wrt ITRF93 TROM 9.3 4.5 -10.0 6.7 -19.0 16.9 EMR wrt ITRF93 WETT -0.1 3.7 0.0 5.9 -4.6 15.0 EMR wrt ITRF93 KOSG 5.0 3.2 -6.1 6.2 -0.2 13.3 EMR wrt ITRF93 Core sites NOT used HART 29.0 14.3 95.4 64.9 20.4 63.7 EMR wrt ITRF93 Additional Sites FORT 11.0 7.5 -0.3 13.2 -58.2 29.9 EMR wrt ITRF93 AREQ 16.5 6.6 1.2 12.4 -24.4 19.8 EMR wrt ITRF93 MCM4 -1.7 10.4 -23.7 11.5 21.7 26.4 EMR wrt ITRF93 GUAM -9.6 7.4 -25.0 16.8 -18.6 23.2 EMR wrt ITRF93 KIT3 3.1 8.0 -3.3 13.2 17.9 21.6 EMR wrt ITRF93 CENTER JPL ------------------- VARIANCE RESCALING FACTOR FOR JPL 15.6681 Transformation of loose solution JPL to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 7.2 mm JPL wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 6.8 3.5 -28.1 3.4 -12.3 3.5 -2.123 1.064 JPL Adjustments to core site positions for JPL SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -5.0 2.0 2.8 3.3 -5.3 8.0 JPL wrt ITRF93 SANT -5.7 3.7 8.3 5.1 40.1 9.1 JPL wrt ITRF93 ALGO 8.8 2.1 4.8 3.8 -24.9 6.5 JPL wrt ITRF93 YELL 2.5 2.1 5.1 2.9 6.9 7.1 JPL wrt ITRF93 GOLD 6.4 2.0 -13.1 4.1 42.7 10.1 JPL wrt ITRF93 FAIR 7.5 2.3 -6.6 3.5 -11.1 8.9 JPL wrt ITRF93 KOKB -17.4 2.7 -8.5 5.3 -19.3 11.0 JPL wrt ITRF93 TIDB -7.0 2.1 16.0 3.9 -24.2 8.6 JPL wrt ITRF93 YAR1 15.3 2.1 2.8 3.9 -17.6 8.9 JPL wrt ITRF93 TROM 1.8 3.0 -13.1 4.5 5.6 12.3 JPL wrt ITRF93 WETT -2.7 1.9 0.0 3.0 -1.0 7.9 JPL wrt ITRF93 KOSG 3.2 1.8 -7.1 3.0 8.1 7.9 JPL wrt ITRF93 Core sites NOT used HART 38.0 8.2 -4.7 21.4 -21.6 42.1 JPL wrt ITRF93 Additional Sites AREQ 9.7 3.1 13.5 6.4 6.5 9.7 JPL wrt ITRF93 MCM4 -10.8 5.8 -4.3 7.2 -15.8 20.7 JPL wrt ITRF93 GUAM -6.8 3.3 20.6 7.2 -10.6 9.4 JPL wrt ITRF93 KIT3 11.5 4.0 -6.3 7.4 -15.1 12.0 JPL wrt ITRF93 CENTER GFZ ------------------- VARIANCE RESCALING FACTOR FOR GFZ 28.5165 Transformation of loose solution GFZ to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 5.7 mm GFZ wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 82.6 2.7 39.9 2.7 -9.7 2.8 -0.956 0.834 GFZ Adjustments to core site positions for GFZ SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -3.9 2.7 0.2 4.7 27.6 13.3 GFZ wrt ITRF93 SANT -5.1 5.0 1.0 6.7 -0.1 14.6 GFZ wrt ITRF93 ALGO 9.6 2.9 -1.0 5.0 -26.6 11.9 GFZ wrt ITRF93 YELL 0.5 2.8 5.0 4.5 13.9 13.2 GFZ wrt ITRF93 GOLD 2.3 2.6 -15.4 5.3 -11.1 13.6 GFZ wrt ITRF93 FAIR 10.4 3.0 0.0 4.5 2.7 13.6 GFZ wrt ITRF93 KOKB -13.5 3.9 2.4 7.6 -36.7 22.0 GFZ wrt ITRF93 TIDB -7.6 3.0 13.5 5.4 -12.1 16.6 GFZ wrt ITRF93 YAR1 10.6 3.0 2.5 5.6 8.0 17.2 GFZ wrt ITRF93 TROM 2.4 3.1 -6.8 4.1 2.0 15.3 GFZ wrt ITRF93 WETT -3.9 2.6 1.7 4.0 21.0 12.7 GFZ wrt ITRF93 KOSG 3.1 2.4 -6.7 3.9 11.7 12.6 GFZ wrt ITRF93 Core sites NOT used HART 45.3 14.9 -19.2 43.4 34.2 71.6 GFZ wrt ITRF93 Additional Sites FORT 14.5 4.6 8.6 8.7 -52.5 21.3 GFZ wrt ITRF93 AREQ 11.8 4.2 3.7 8.9 -27.6 16.7 GFZ wrt ITRF93 MCM4 -16.9 6.1 -23.4 7.2 19.4 25.7 GFZ wrt ITRF93 GUAM -7.4 4.6 -4.7 11.7 -19.5 17.5 GFZ wrt ITRF93 KIT3 2.7 5.0 -18.1 8.6 9.6 17.9 GFZ wrt ITRF93 CENTER COD ------------------- VARIANCE RESCALING FACTOR FOR COD 6.46166 Transformation of loose solution COD to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 5.1 mm COD wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -2.6 2.5 1.0 2.4 -10.6 2.5 -0.564 0.751 COD Adjustments to core site positions for COD SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -6.1 0.8 5.0 0.9 22.7 3.6 COD wrt ITRF93 SANT -0.3 1.9 3.0 2.4 1.0 4.6 COD wrt ITRF93 ALGO 4.5 0.8 0.9 1.1 -21.3 3.1 COD wrt ITRF93 YELL -3.3 0.7 3.0 0.7 11.8 3.2 COD wrt ITRF93 GOLD 4.5 0.8 -13.7 1.2 -1.9 4.0 COD wrt ITRF93 FAIR 2.4 0.9 0.1 1.0 3.5 4.0 COD wrt ITRF93 KOKB -8.5 1.6 -2.8 2.7 -17.2 7.7 COD wrt ITRF93 TIDB -4.9 1.1 14.0 1.8 -17.8 4.6 COD wrt ITRF93 YAR1 9.8 1.0 -2.7 1.7 5.4 5.1 COD wrt ITRF93 TROM 4.0 0.8 -8.6 0.7 -3.3 4.0 COD wrt ITRF93 WETT -5.1 0.7 3.6 0.8 9.9 3.7 COD wrt ITRF93 KOSG 1.0 0.7 -4.9 0.7 7.3 3.5 COD wrt ITRF93 Core sites NOT used HART 38.8 4.0 13.7 10.0 -41.1 19.7 COD wrt ITRF93 Additional Sites FORT 6.1 1.7 12.0 3.0 -39.9 6.4 COD wrt ITRF93 AREQ 18.8 1.5 1.2 2.6 -15.3 4.7 COD wrt ITRF93 MCM4 -16.0 2.7 -4.4 2.8 11.7 7.7 COD wrt ITRF93 GUAM -4.8 1.7 -3.3 3.5 -0.1 5.8 COD wrt ITRF93 KIT3 -0.1 1.7 -3.7 3.0 24.6 6.5 COD wrt ITRF93 CENTER SIO ------------------- VARIANCE RESCALING FACTOR FOR SIO 1.67384 Transformation of loose solution SIO to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 6.3 mm SIO wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -16.4 3.0 -12.2 2.9 -36.0 3.1 -1.394 0.925 SIO Adjustments to core site positions for SIO SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -6.6 1.5 -2.2 2.2 15.6 6.1 SIO wrt ITRF93 SANT 2.7 2.9 10.2 3.7 8.1 8.2 SIO wrt ITRF93 ALGO 6.8 1.6 1.6 2.7 -7.6 4.8 SIO wrt ITRF93 YELL -0.3 1.5 6.3 2.1 16.4 5.3 SIO wrt ITRF93 GOLD 7.0 1.6 -14.5 3.0 -8.1 7.7 SIO wrt ITRF93 FAIR 6.8 1.8 -5.6 2.5 -0.7 7.5 SIO wrt ITRF93 KOKB -19.6 2.6 -6.1 4.3 -29.8 8.9 SIO wrt ITRF93 TIDB -2.8 1.7 13.2 2.9 -21.5 8.0 SIO wrt ITRF93 YAR1 13.3 1.7 6.8 3.0 22.7 8.7 SIO wrt ITRF93 TROM 2.5 1.6 -9.6 2.1 -5.4 6.3 SIO wrt ITRF93 WETT -5.6 1.3 1.1 1.8 5.3 5.2 SIO wrt ITRF93 KOSG 1.2 1.3 -8.3 2.1 5.0 6.6 SIO wrt ITRF93 Core sites NOT used HART 51.5 6.5 47.3 16.3 23.0 35.9 SIO wrt ITRF93 Additional Sites FORT 12.3 3.0 17.2 4.4 0.6 7.5 SIO wrt ITRF93 AREQ 21.2 2.8 11.8 4.8 -2.5 8.0 SIO wrt ITRF93 MCM4 -9.9 3.5 -6.2 4.1 -14.3 10.0 SIO wrt ITRF93 GUAM -10.7 2.7 21.5 5.7 -7.4 7.4 SIO wrt ITRF93 KIT3 -0.8 2.9 -5.1 4.3 -5.0 5.8 SIO wrt ITRF93 CENTER NGS ------------------- VARIANCE RESCALING FACTOR FOR NGS 383.026 Transformation of loose solution NGS to ITRF93 ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 6.5 mm NGS wrt ITRF93 X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -19.3 3.1 179.3 3.1 31.6 3.2 3.284 0.959 NGS Adjustments to core site positions for NGS SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -5.1 5.2 4.5 6.3 -5.8 14.6 NGS wrt ITRF93 SANT 1.2 10.3 -13.4 11.1 -9.2 17.3 NGS wrt ITRF93 ALGO 5.0 5.7 -3.6 8.7 -6.1 8.4 NGS wrt ITRF93 YELL 4.8 6.6 14.9 8.0 25.8 12.4 NGS wrt ITRF93 GOLD 14.1 5.2 -1.9 7.5 -8.2 14.8 NGS wrt ITRF93 FAIR 18.5 7.4 -1.3 8.5 -35.8 14.3 NGS wrt ITRF93 KOKB -16.7 9.7 16.2 14.9 -49.1 31.9 NGS wrt ITRF93 TIDB -6.3 5.4 0.6 9.6 46.8 20.4 NGS wrt ITRF93 YAR1 5.9 6.5 -6.1 11.2 77.8 23.5 NGS wrt ITRF93 TROM 17.7 6.3 -12.0 8.1 -29.7 14.5 NGS wrt ITRF93 WETT 1.8 4.6 5.7 6.0 -1.7 12.9 NGS wrt ITRF93 KOSG 8.5 4.5 -7.0 6.8 -4.7 14.5 NGS wrt ITRF93 Core sites NOT used HART 56.7 57.4 -34.2 122.2 83.4 414.3 NGS wrt ITRF93 Additional Sites FORT 12.6 9.7 8.6 17.0 -41.9 23.6 NGS wrt ITRF93 AREQ 24.0 8.3 -11.9 12.2 -19.6 17.4 NGS wrt ITRF93 MCM4 12.7 12.4 -23.6 15.8 20.8 20.8 NGS wrt ITRF93 GUAM -13.7 13.2 7.8 22.5 -24.7 23.8 NGS wrt ITRF93 KIT3 0.6 10.8 11.4 14.5 9.2 19.1 NGS wrt ITRF93 4.0 CENTER FITS TO COMBINED SOLUTION CENTER EMR ------------------- VARIANCE RESCALING FACTOR FOR EMR 28.569 Transformation of loose solution EMR to COMB ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 3.7 mm EMR wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -24.5 1.8 125.5 1.8 28.2 1.8 -0.655 0.552 EMR Adjustments to core site positions for EMR SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR 1.4 3.9 -1.0 6.5 -18.1 14.9 EMR wrt COMB SANT -5.5 7.9 0.7 11.0 -12.3 18.2 EMR wrt COMB ALGO -0.1 4.1 -3.6 6.9 2.3 11.7 EMR wrt COMB YELL 0.9 4.1 6.5 5.8 2.4 12.6 EMR wrt COMB GOLD 2.6 3.7 3.6 7.1 2.5 16.6 EMR wrt COMB FAIR 6.3 4.6 -3.3 7.2 -8.9 16.0 EMR wrt COMB KOKB 8.6 5.9 3.6 12.0 5.5 26.7 EMR wrt COMB TIDB -5.1 4.9 2.6 10.7 34.8 19.2 EMR wrt COMB YAR1 -2.2 4.5 -5.9 11.4 27.0 20.1 EMR wrt COMB TROM 5.0 4.5 -0.8 6.7 -13.8 16.9 EMR wrt COMB WETT 4.3 3.7 -2.7 5.9 -12.9 15.0 EMR wrt COMB KOSG 3.0 3.2 -0.2 6.2 -8.4 13.3 EMR wrt COMB Core sites NOT used HART -10.4 14.3 75.4 64.9 35.2 63.7 EMR wrt COMB Additional Sites FORT 4.7 7.5 -10.0 13.2 -33.1 29.9 EMR wrt COMB AREQ -0.8 6.6 0.0 12.4 -14.3 19.8 EMR wrt COMB MCM4 10.9 10.4 -16.7 11.5 21.7 26.4 EMR wrt COMB GUAM -2.1 7.4 -26.5 16.8 -8.3 23.2 EMR wrt COMB KIT3 3.2 8.0 1.8 13.2 15.8 21.6 EMR wrt COMB CENTER JPL ------------------- VARIANCE RESCALING FACTOR FOR JPL 15.6681 Transformation of loose solution JPL to COMB ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 4.4 mm JPL wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 6.8 2.1 -28.1 2.1 -12.3 2.1 -2.122 0.642 JPL Adjustments to core site positions for JPL SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR 0.6 2.0 -1.1 3.3 -22.5 8.0 JPL wrt COMB SANT -5.1 3.7 4.9 5.1 31.6 9.1 JPL wrt COMB ALGO 3.5 2.1 3.2 3.8 -5.9 6.5 JPL wrt COMB YELL 4.1 2.1 1.6 2.9 -5.9 7.1 JPL wrt COMB GOLD 1.3 2.0 -0.1 4.1 43.6 10.1 JPL wrt COMB FAIR 2.8 2.3 -5.8 3.5 -8.1 8.9 JPL wrt COMB KOKB -6.7 2.7 -5.6 5.3 0.6 11.0 JPL wrt COMB TIDB -2.2 2.1 3.3 3.9 -8.8 8.6 JPL wrt COMB YAR1 5.2 2.1 3.2 3.9 -26.1 8.9 JPL wrt COMB TROM -2.4 3.0 -4.0 4.5 10.8 12.3 JPL wrt COMB WETT 1.7 1.9 -2.7 3.0 -9.2 7.9 JPL wrt COMB KOSG 1.2 1.8 -1.2 3.0 -0.1 7.9 JPL wrt COMB Core sites NOT used HART -1.4 8.2 -24.7 21.4 -6.8 42.1 JPL wrt COMB Additional Sites AREQ -7.5 3.1 12.3 6.4 16.6 9.7 JPL wrt COMB MCM4 1.8 5.8 2.6 7.2 -15.7 20.7 JPL wrt COMB GUAM 0.7 3.3 19.2 7.2 -0.4 9.4 JPL wrt COMB KIT3 11.6 4.0 -1.2 7.4 -17.2 12.0 JPL wrt COMB CENTER GFZ ------------------- VARIANCE RESCALING FACTOR FOR GFZ 28.5165 Transformation of loose solution GFZ to COMB ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 2.3 mm GFZ wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) 82.6 1.1 39.9 1.1 -9.7 1.1 -0.955 0.345 GFZ Adjustments to core site positions for GFZ SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR 1.6 2.7 -3.7 4.7 10.5 13.3 GFZ wrt COMB SANT -4.5 5.0 -2.5 6.7 -8.6 14.6 GFZ wrt COMB ALGO 4.3 2.9 -2.7 5.0 -7.5 11.9 GFZ wrt COMB YELL 2.2 2.8 1.5 4.5 1.1 13.2 GFZ wrt COMB GOLD -2.8 2.6 -2.3 5.3 -10.2 13.6 GFZ wrt COMB FAIR 5.7 3.0 0.8 4.5 5.7 13.6 GFZ wrt COMB KOKB -2.8 3.9 5.3 7.6 -16.8 22.0 GFZ wrt COMB TIDB -2.8 3.0 0.7 5.4 3.2 16.6 GFZ wrt COMB YAR1 0.4 3.0 2.9 5.6 -0.6 17.2 GFZ wrt COMB TROM -1.8 3.1 2.4 4.1 7.1 15.3 GFZ wrt COMB WETT 0.5 2.6 -0.9 4.0 12.7 12.7 GFZ wrt COMB KOSG 1.1 2.4 -0.9 3.9 3.5 12.6 GFZ wrt COMB Core sites NOT used HART 5.9 14.9 -39.2 43.4 49.0 71.6 GFZ wrt COMB Additional Sites FORT 8.1 4.6 -1.0 8.7 -27.4 21.3 GFZ wrt COMB AREQ -5.4 4.2 2.5 8.9 -17.5 16.7 GFZ wrt COMB MCM4 -4.4 6.1 -16.5 7.2 19.4 25.7 GFZ wrt COMB GUAM 0.1 4.6 -6.1 11.7 -9.2 17.5 GFZ wrt COMB KIT3 2.8 5.0 -13.0 8.6 7.5 17.9 GFZ wrt COMB CENTER COD ------------------- VARIANCE RESCALING FACTOR FOR COD 6.46166 Transformation of loose solution COD to COMB ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 1.3 mm COD wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -2.6 0.7 1.0 0.6 -10.6 0.7 -0.564 0.198 COD Adjustments to core site positions for COD SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -0.5 0.8 1.1 0.9 5.5 3.6 COD wrt COMB SANT 0.3 1.9 -0.5 2.4 -7.5 4.6 COD wrt COMB ALGO -0.9 0.8 -0.7 1.1 -2.2 3.1 COD wrt COMB YELL -1.6 0.7 -0.5 0.7 -0.9 3.2 COD wrt COMB GOLD -0.6 0.8 -0.6 1.2 -1.0 4.0 COD wrt COMB FAIR -2.3 0.9 0.8 1.0 6.5 4.0 COD wrt COMB KOKB 2.3 1.6 0.1 2.7 2.7 7.7 COD wrt COMB TIDB -0.1 1.1 1.3 1.8 -2.5 4.6 COD wrt COMB YAR1 -0.3 1.0 -2.3 1.7 -3.1 5.1 COD wrt COMB TROM -0.2 0.8 0.5 0.7 1.8 4.0 COD wrt COMB WETT -0.7 0.7 0.9 0.8 1.7 3.7 COD wrt COMB KOSG -1.0 0.7 1.0 0.7 -0.9 3.5 COD wrt COMB Core sites NOT used HART -0.5 4.0 -6.3 10.0 -26.3 19.7 COD wrt COMB Additional Sites FORT -0.2 1.7 2.4 3.0 -14.8 6.4 COD wrt COMB AREQ 1.6 1.5 -0.1 2.6 -5.2 4.7 COD wrt COMB MCM4 -3.4 2.7 2.5 2.8 11.8 7.7 COD wrt COMB GUAM 2.8 1.7 -4.7 3.5 10.2 5.8 COD wrt COMB KIT3 0.0 1.7 1.4 3.0 22.6 6.5 COD wrt COMB CENTER SIO ------------------- VARIANCE RESCALING FACTOR FOR SIO 1.67384 Transformation of loose solution SIO to COMB ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 2.7 mm SIO wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -16.4 1.3 -12.2 1.3 -36.0 1.4 -1.393 0.405 SIO Adjustments to core site positions for SIO SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR -1.1 1.5 -6.1 2.2 -1.6 6.1 SIO wrt COMB SANT 3.3 2.9 6.7 3.7 -0.4 8.2 SIO wrt COMB ALGO 1.4 1.6 -0.1 2.7 11.5 4.8 SIO wrt COMB YELL 1.4 1.5 2.8 2.1 3.7 5.3 SIO wrt COMB GOLD 1.9 1.6 -1.5 3.0 -7.2 7.7 SIO wrt COMB FAIR 2.1 1.8 -4.9 2.5 2.4 7.5 SIO wrt COMB KOKB -8.8 2.6 -3.2 4.3 -9.9 8.9 SIO wrt COMB TIDB 2.0 1.7 0.5 2.9 -6.2 8.0 SIO wrt COMB YAR1 3.1 1.7 7.2 3.0 14.2 8.7 SIO wrt COMB TROM -1.7 1.6 -0.4 2.1 -0.3 6.3 SIO wrt COMB WETT -1.2 1.3 -1.6 1.8 -3.0 5.2 SIO wrt COMB KOSG -0.7 1.3 -2.4 2.1 -3.1 6.6 SIO wrt COMB Core sites NOT used HART 12.2 6.5 27.3 16.3 37.8 35.9 SIO wrt COMB Additional Sites FORT 6.0 3.0 7.6 4.4 25.7 7.5 SIO wrt COMB AREQ 4.0 2.8 10.6 4.8 7.6 8.0 SIO wrt COMB MCM4 2.7 3.5 0.7 4.1 -14.2 10.0 SIO wrt COMB GUAM -3.2 2.7 20.0 5.7 2.9 7.4 SIO wrt COMB KIT3 -0.7 2.9 0.0 4.3 -7.1 5.8 SIO wrt COMB CENTER NGS ------------------- VARIANCE RESCALING FACTOR FOR NGS 383.026 Transformation of loose solution NGS to COMB ----------------------------------------------- For 12 Sites, RMS after 7 parameter transformation 6.2 mm NGS wrt COMB X-tran +- Y-tran +- Z-tran +- Scale +- (mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb) -19.3 3.0 179.3 2.9 31.6 3.0 3.285 0.913 NGS Adjustments to core site positions for NGS SITE dNorth +- dEast +- dUp +- (mm) (mm) (mm) (mm) (mm) (mm) MADR 0.5 5.2 0.6 6.3 -22.9 14.6 NGS wrt COMB SANT 1.9 10.3 -16.8 11.1 -17.7 17.3 NGS wrt COMB ALGO -0.3 5.7 -5.3 8.7 13.0 8.4 NGS wrt COMB YELL 6.5 6.6 11.4 8.0 13.0 12.4 NGS wrt COMB GOLD 9.0 5.2 11.2 7.5 -7.3 14.8 NGS wrt COMB FAIR 13.8 7.4 -0.6 8.5 -32.8 14.3 NGS wrt COMB KOKB -5.9 9.7 19.1 14.9 -29.2 31.9 NGS wrt COMB TIDB -1.5 5.4 -12.1 9.6 62.2 20.4 NGS wrt COMB YAR1 -4.2 6.5 -5.8 11.2 69.3 23.5 NGS wrt COMB TROM 13.4 6.3 -2.8 8.1 -24.6 14.5 NGS wrt COMB WETT 6.2 4.6 3.1 6.0 -10.0 12.9 NGS wrt COMB KOSG 6.5 4.5 -1.1 6.8 -12.9 14.5 NGS wrt COMB Core sites NOT used HART 17.3 57.4 -54.2 122.2 98.2 414.3 NGS wrt COMB Additional Sites FORT 6.3 9.7 -1.0 17.0 -16.9 23.6 NGS wrt COMB AREQ 6.7 8.3 -13.2 12.2 -9.5 17.4 NGS wrt COMB MCM4 25.3 12.4 -16.7 15.8 20.8 20.8 NGS wrt COMB GUAM -6.2 13.2 6.3 22.5 -14.4 23.8 NGS wrt COMB KIT3 0.7 10.8 16.5 14.5 7.2 19.1 NGS wrt COMB