[IGSREPORT-2936] Wk 0864 MIT T2 Analysis Report
Thomas
Thomas
Sun Sep 1 20:52:07 PDT 1996
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IGS Electronic Report Sun Sep 1 20:52:07 PDT 1996 Message Number 2936
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Author: Thomas Herring
Subject: Wk 0864 MIT T2 Analysis Report
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MIT ANALYSIS REPORT GPS-WEEK 0864 Dates: 96jul28 to 96aug03
********************************************************************************
MIT (Massachusetts Institute of Technology)
Room 54-618
77 Massachusetts Avenue,
Cambridge, MA 02139
e-mail: tah at 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
MIT0864g.SNX Combined sinex file from all available analysis centers
MIT0864g.SUM Name of this summary file
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 ITRF1994
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. Starting Week 0858, ITRF94 is used for the coordinate
system.
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: As a reminder we include here the
position changes being applied to different centers because their
ARP heights do not match the current station logs (or the values
used by the majority of centers. These were reported in
0.0 IMPORTANT NOTE Previously.)
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) Station postitions being changed. (These values are guesses
based on the station position errors because JPL sinex files do
not contain the site/eccentricity entries).
Site iisc NEU (m) 0.0 0.00 1.3230
Site pama NEU (m) 0.00 0.00 0.620
GFZ: (a) Constraints loosened to +-5 m for positions.
(b) Station postitions being changed.
Site iisc NEU (m) 0.0 0.0 +1.3230
COD: (a) Constraints loosened to +-5 m for positions.
SIO: (a) Constraints not changed since the center's constraints are
extremely weak.
(b) Station postitions being changed.
Site iisc NEU (m) 0.0 0.0 1.3440
NGS: (a) Constraints loosened to +-0.1 m for positions: Looser constraints
generate non-positive definite covariance matrices.
(b) Station postitions being changed.
Site cro1 NEU (m) 0.0 0.0 0.0486
Site eisl XYZ (m) 32.016 12.485 -37.088
(Note: EISL assumes the correct height is used in their analysis
The UNE eccentricity in the NGS sinex file matches no known station
and the values above are derived from the station log.)
ESA: (a) Constraints not changed since the center's constraints are
very loose (1000m)
(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.
2.0 COMBINED FIT TO ITRF 1994
Transformation of loose solution COMBINED to ITRF94
-----------------------------------------------
For 12 Sites, RMS after 7 parameter transformation 4.7 mm COMBINED wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-12.3 2.3 32.6 2.2 -37.5 2.2 -1.022 0.686 COMBINED
Adjustments to core site positions for COMBINED
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 1.9 0.5 2.7 0.7 4.8 2.9 COMBINED wrt ITRF94
ALGO -2.3 0.6 10.5 0.7 -22.8 2.2 COMBINED wrt ITRF94
YELL -1.8 0.5 -1.4 0.6 9.6 2.6 COMBINED wrt ITRF94
GOLD 1.9 0.6 -5.8 0.8 -0.8 4.5 COMBINED wrt ITRF94
FAIR -0.5 0.6 3.8 0.7 -22.3 3.2 COMBINED wrt ITRF94
KOKB -0.8 0.8 -8.2 1.5 -6.4 4.7 COMBINED wrt ITRF94
TIDB 3.3 0.6 -0.1 1.1 -26.2 3.9 COMBINED wrt ITRF94
YAR1 -9.1 0.6 3.5 1.1 16.4 3.3 COMBINED wrt ITRF94
HART -4.4 0.9 2.1 1.2 4.2 3.1 COMBINED wrt ITRF94
TROM -4.3 0.6 -11.9 0.7 17.2 3.1 COMBINED wrt ITRF94
WETT 13.3 0.6 5.2 1.0 14.0 3.5 COMBINED wrt ITRF94
KOSG 0.5 0.5 -3.6 0.5 12.5 2.4 COMBINED wrt ITRF94
Core sites NOT used
SANT -8.1 1.6 15.1 2.0 3.3 3.4 COMBINED wrt ITRF94
Additional Sites
FORT 7.9 1.1 19.7 1.6 -23.9 3.6 COMBINED wrt ITRF94
AREQ 22.1 1.4 14.2 2.0 -9.9 3.5 COMBINED wrt ITRF94
MCM4 8.9 1.2 -26.0 1.4 102.4 4.2 COMBINED wrt ITRF94
GUAM 36.7 2.0 75.9 6.4 4.8 15.9 COMBINED wrt ITRF94
KIT3 26.3 0.9 -18.7 1.4 7.7 3.2 COMBINED wrt ITRF94
3.0 CENTER FITS TO ITRF 1994
CENTER EMR
-------------------
VARIANCE RESCALING FACTOR FOR EMR 21.16
Transformation of loose solution EMR to ITRF94
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 6.0 mm EMR wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-1.1 3.0 157.5 2.9 -148.3 3.0 -0.852 0.913 EMR
Adjustments to core site positions for EMR
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 6.6 3.2 -4.0 6.1 -6.4 14.0 EMR wrt ITRF94
ALGO 2.2 3.5 12.6 6.2 -11.5 10.4 EMR wrt ITRF94
YELL -0.2 3.4 1.3 5.0 17.1 11.7 EMR wrt ITRF94
GOLD 9.2 3.3 -4.9 5.5 -2.5 12.8 EMR wrt ITRF94
FAIR 0.3 4.0 3.9 6.3 -23.1 14.5 EMR wrt ITRF94
KOKB 4.2 5.2 -18.7 10.3 -6.9 29.0 EMR wrt ITRF94
TIDB -7.4 4.2 6.4 8.1 -5.7 18.8 EMR wrt ITRF94
YAR1 -17.2 4.5 -0.6 9.8 20.2 23.9 EMR wrt ITRF94
HART 0.1 6.3 24.5 7.3 -1.7 15.9 EMR wrt ITRF94
TROM 3.4 4.4 -23.2 6.0 7.5 14.6 EMR wrt ITRF94
KOSG 5.2 3.3 -8.6 5.1 13.3 12.2 EMR wrt ITRF94
Core sites NOT used
SANT -16.2 10.8 32.6 15.4 -12.3 20.4 EMR wrt ITRF94
Additional Sites
FORT 7.6 7.1 30.6 11.9 -38.9 24.9 EMR wrt ITRF94
AREQ 19.5 9.2 29.5 15.0 -23.1 19.1 EMR wrt ITRF94
MCM4 2.2 7.8 -45.5 8.9 108.1 19.7 EMR wrt ITRF94
GUAM 17.9 11.8 76.0 35.3 -24.7 75.0 EMR wrt ITRF94
KIT3 35.0 6.5 -20.1 12.3 5.0 20.3 EMR wrt ITRF94
CENTER JPL
-------------------
VARIANCE RESCALING FACTOR FOR JPL 12.66
Transformation of loose solution JPL to ITRF94
-----------------------------------------------
For 9 Sites, RMS after 7 parameter transformation 4.9 mm JPL wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-4.2 3.0 27.0 2.9 -39.7 2.8 -1.197 0.843 JPL
Adjustments to core site positions for JPL
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 5.6 1.2 -1.9 2.4 -10.9 6.6 JPL wrt ITRF94
ALGO 3.1 1.3 11.2 1.5 -27.4 5.4 JPL wrt ITRF94
YELL 2.5 1.2 -5.7 1.2 10.9 6.0 JPL wrt ITRF94
FAIR 1.4 1.3 1.0 1.3 -26.3 6.2 JPL wrt ITRF94
KOKB 0.1 1.6 -7.4 2.2 -3.1 10.1 JPL wrt ITRF94
YAR1 -7.1 1.5 6.8 2.1 7.7 6.5 JPL wrt ITRF94
HART -0.1 1.7 5.1 2.0 25.1 7.0 JPL wrt ITRF94
TROM -1.2 1.7 -15.0 2.5 14.1 7.7 JPL wrt ITRF94
KOSG 5.8 1.1 -4.1 1.4 10.0 5.2 JPL wrt ITRF94
Core sites NOT used
SANT -11.4 3.6 12.8 4.1 7.5 8.5 JPL wrt ITRF94
Additional Sites
FORT 9.6 2.3 16.7 3.0 -23.0 8.0 JPL wrt ITRF94
AREQ 18.8 3.1 12.1 4.0 -10.0 9.4 JPL wrt ITRF94
MCM4 7.9 3.0 -32.7 3.4 94.9 10.6 JPL wrt ITRF94
KIT3 31.7 2.8 -18.8 4.0 -2.9 12.6 JPL wrt ITRF94
CENTER GFZ
-------------------
VARIANCE RESCALING FACTOR FOR GFZ 102.55
Transformation of loose solution GFZ to ITRF94
-----------------------------------------------
For 10 Sites, RMS after 7 parameter transformation 4.3 mm GFZ wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-0.8 2.2 150.1 2.1 -42.8 2.3 -0.644 0.684 GFZ
Adjustments to core site positions for GFZ
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 7.0 2.9 1.7 5.7 6.5 16.0 GFZ wrt ITRF94
ALGO -5.2 3.7 2.6 6.1 -32.4 14.6 GFZ wrt ITRF94
YELL -3.1 3.4 4.1 5.5 -4.6 16.2 GFZ wrt ITRF94
FAIR 0.7 3.6 7.1 5.4 -29.4 17.2 GFZ wrt ITRF94
KOKB 5.6 5.0 -3.6 9.2 -1.4 29.7 GFZ wrt ITRF94
TIDB 6.0 3.5 -1.4 6.6 -8.3 20.2 GFZ wrt ITRF94
YAR1 -6.7 3.5 -4.2 6.6 22.8 18.9 GFZ wrt ITRF94
HART -9.9 5.0 -4.5 6.1 6.7 17.6 GFZ wrt ITRF94
TROM 6.3 3.7 -1.9 4.9 25.2 17.7 GFZ wrt ITRF94
KOSG 8.8 3.0 7.8 4.8 14.8 14.8 GFZ wrt ITRF94
Core sites NOT used
SANT -21.4 8.7 -7.3 12.9 -58.2 19.9 GFZ wrt ITRF94
Additional Sites
FORT -0.5 5.9 14.0 10.9 -80.5 22.3 GFZ wrt ITRF94
AREQ 16.8 7.8 -4.8 12.5 -48.6 19.4 GFZ wrt ITRF94
MCM4 31.0 6.7 -36.4 8.1 161.8 26.1 GFZ wrt ITRF94
KIT3 28.5 5.2 -2.7 9.5 -3.4 17.9 GFZ wrt ITRF94
CENTER COD
-------------------
VARIANCE RESCALING FACTOR FOR COD 13.68
Transformation of loose solution COD to ITRF94
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 4.5 mm COD wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-15.5 2.3 25.9 2.2 -43.0 2.3 -1.309 0.693 COD
Adjustments to core site positions for COD
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 1.3 1.0 5.4 1.3 15.4 5.0 COD wrt ITRF94
ALGO 0.1 1.0 7.7 1.2 -19.3 4.4 COD wrt ITRF94
YELL -4.1 0.9 -3.6 0.9 9.3 5.3 COD wrt ITRF94
GOLD 2.0 1.1 -7.3 1.3 -1.7 6.2 COD wrt ITRF94
FAIR -5.6 1.1 2.1 1.2 -11.3 6.1 COD wrt ITRF94
KOKB 0.5 1.6 -3.8 3.0 5.4 9.0 COD wrt ITRF94
TIDB 3.7 1.1 3.1 2.1 -36.5 6.4 COD wrt ITRF94
YAR1 -7.8 1.2 -1.8 2.2 13.2 5.8 COD wrt ITRF94
HART -0.9 1.8 4.2 2.4 -8.7 6.4 COD wrt ITRF94
TROM -2.7 1.2 -9.6 1.1 22.4 6.3 COD wrt ITRF94
KOSG 0.3 0.9 -0.7 1.1 11.8 4.3 COD wrt ITRF94
Core sites NOT used
SANT -4.3 3.5 22.4 4.5 -12.9 6.7 COD wrt ITRF94
Additional Sites
FORT 12.2 2.3 27.6 3.4 -41.5 8.2 COD wrt ITRF94
AREQ 28.3 2.9 21.5 4.5 -24.1 6.6 COD wrt ITRF94
MCM4 6.9 3.0 -24.7 3.1 126.2 8.9 COD wrt ITRF94
GUAM 36.1 2.7 82.9 7.3 10.5 17.2 COD wrt ITRF94
KIT3 25.9 1.8 -13.4 2.9 2.3 6.3 COD wrt ITRF94
CENTER SIO
-------------------
VARIANCE RESCALING FACTOR FOR SIO 1.099
Transformation of loose solution SIO to ITRF94
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 5.7 mm SIO wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-8.8 3.0 36.3 2.8 -12.9 2.9 -0.189 0.875 SIO
Adjustments to core site positions for SIO
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 3.8 0.9 -0.3 2.0 6.0 5.6 SIO wrt ITRF94
ALGO -4.9 1.3 14.1 1.9 -19.0 3.7 SIO wrt ITRF94
YELL -1.1 1.1 -1.1 1.7 15.2 4.2 SIO wrt ITRF94
FAIR 2.0 1.3 6.3 1.8 -16.5 6.2 SIO wrt ITRF94
KOKB -1.3 1.7 -20.1 2.9 -8.8 7.4 SIO wrt ITRF94
TIDB 2.1 1.3 -0.8 2.5 -31.5 7.6 SIO wrt ITRF94
YAR1 -11.5 1.3 7.6 2.4 8.7 6.5 SIO wrt ITRF94
HART -5.0 1.8 3.4 2.4 9.8 4.9 SIO wrt ITRF94
TROM -3.0 1.1 -11.4 1.5 16.0 4.9 SIO wrt ITRF94
WETT 15.7 0.9 5.4 1.4 12.5 3.9 SIO wrt ITRF94
KOSG 2.0 1.0 -3.0 1.7 7.5 5.5 SIO wrt ITRF94
Core sites NOT used
SANT -12.7 3.2 12.7 4.5 14.4 5.6 SIO wrt ITRF94
Additional Sites
FORT 2.8 2.3 20.5 3.3 -9.7 5.4 SIO wrt ITRF94
AREQ 15.5 2.9 15.4 4.5 -1.1 5.6 SIO wrt ITRF94
MCM4 5.3 2.3 -24.8 2.8 100.7 6.2 SIO wrt ITRF94
KIT3 24.3 1.8 -19.7 3.0 21.2 4.5 SIO wrt ITRF94
CENTER NGS
-------------------
VARIANCE RESCALING FACTOR FOR NGS 415
Transformation of loose solution NGS to ITRF94
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 7.8 mm NGS wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-26.5 3.9 236.1 3.8 -73.2 3.9 -0.411 1.192 NGS
Adjustments to core site positions for NGS
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 4.6 5.0 5.4 7.8 -7.2 14.2 NGS wrt ITRF94
ALGO -0.3 5.6 14.7 9.8 -12.0 9.9 NGS wrt ITRF94
YELL -5.8 6.3 -6.6 8.0 10.5 12.0 NGS wrt ITRF94
GOLD 7.8 5.2 -1.7 7.1 -11.4 16.2 NGS wrt ITRF94
FAIR -4.4 7.6 0.7 9.9 -43.9 17.3 NGS wrt ITRF94
KOKB -3.7 8.8 -10.3 12.5 -12.9 23.5 NGS wrt ITRF94
TIDB 11.4 5.9 14.3 10.1 -5.2 20.2 NGS wrt ITRF94
YAR1 -10.3 6.2 -8.7 9.5 28.8 21.5 NGS wrt ITRF94
HART 0.2 9.1 3.0 10.8 7.2 15.9 NGS wrt ITRF94
TROM 1.7 8.6 -15.9 9.7 29.3 13.9 NGS wrt ITRF94
KOSG 2.4 5.8 -3.0 7.1 16.9 12.7 NGS wrt ITRF94
Core sites NOT used
SANT -9.8 21.2 19.1 26.6 -20.9 21.3 NGS wrt ITRF94
Additional Sites
FORT 9.7 12.8 39.9 22.6 10.7 27.9 NGS wrt ITRF94
AREQ 31.2 16.6 12.4 23.6 -15.0 22.3 NGS wrt ITRF94
MCM4 36.2 13.5 -22.4 14.1 138.6 20.4 NGS wrt ITRF94
GUAM -4.2 24.1 128.6 51.8 5.8 108.2 NGS wrt ITRF94
KIT3 17.1 11.6 -4.3 14.2 -8.6 22.0 NGS wrt ITRF94
CENTER ESA
-------------------
VARIANCE RESCALING FACTOR FOR ESA 6.24
Transformation of loose solution ESA to ITRF94
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 10.3 mm ESA wrt ITRF94
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-9.3 5.1 -33.7 5.0 -23.5 5.2 -5.065 1.571 ESA
Adjustments to core site positions for ESA
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 8.0 1.9 -2.4 3.4 -0.1 16.4 ESA wrt ITRF94
ALGO -2.2 2.0 17.5 3.4 -57.7 13.1 ESA wrt ITRF94
YELL -1.0 1.7 -1.6 2.8 -6.6 14.8 ESA wrt ITRF94
GOLD 2.2 2.0 -7.7 3.3 21.0 18.8 ESA wrt ITRF94
FAIR -4.5 2.1 -1.2 2.9 -9.4 17.7 ESA wrt ITRF94
KOKB -1.6 2.7 -6.9 4.9 -51.0 25.9 ESA wrt ITRF94
TIDB 4.5 2.5 9.5 3.9 -56.8 17.5 ESA wrt ITRF94
YAR1 -5.1 2.4 4.8 4.7 106.4 16.5 ESA wrt ITRF94
HART 2.2 3.3 -2.2 5.3 -0.9 18.4 ESA wrt ITRF94
TROM -3.4 2.3 -8.9 2.9 38.8 18.6 ESA wrt ITRF94
KOSG 3.6 1.8 -5.3 2.9 16.3 13.2 ESA wrt ITRF94
Core sites NOT used
SANT 7.3 5.7 25.7 9.2 64.9 18.7 ESA wrt ITRF94
Additional Sites
FORT 16.3 3.9 15.0 11.7 -123.0 23.6 ESA wrt ITRF94
AREQ 30.8 4.9 33.3 9.8 13.3 17.3 ESA wrt ITRF94
MCM4 13.5 5.6 -8.4 5.6 -72.9 33.5 ESA wrt ITRF94
GUAM 48.3 4.9 112.5 28.7 -16.2 65.6 ESA wrt ITRF94
KIT3 33.1 3.7 -8.5 7.6 16.1 26.6 ESA wrt ITRF94
4.0 CENTER FITS TO COMBINED SOLUTION
CENTER EMR
-------------------
VARIANCE RESCALING FACTOR FOR EMR 21.16
Transformation of loose solution EMR to COMB
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 4.6 mm EMR wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-1.2 2.3 157.6 2.2 -146.7 2.3 -0.749 0.701 EMR
Adjustments to core site positions for EMR
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 1.4 3.2 -7.7 6.1 -12.6 14.0 EMR wrt COMB
ALGO 3.0 3.5 2.7 6.2 10.0 10.4 EMR wrt COMB
YELL 1.8 3.4 3.8 5.0 5.6 11.7 EMR wrt COMB
GOLD 6.9 3.3 0.9 5.5 -3.2 12.8 EMR wrt COMB
FAIR 2.0 4.0 0.5 6.3 -2.8 14.5 EMR wrt COMB
KOKB 5.3 5.2 -11.6 10.3 -3.0 29.0 EMR wrt COMB
TIDB -10.4 4.2 6.2 8.1 20.9 18.8 EMR wrt COMB
YAR1 -8.7 4.5 -4.7 9.8 3.4 23.9 EMR wrt COMB
HART 1.4 6.3 21.3 7.3 -5.4 15.9 EMR wrt COMB
TROM 5.3 4.4 -12.4 6.0 -11.7 14.6 EMR wrt COMB
KOSG 1.8 3.3 -6.1 5.1 -1.0 12.2 EMR wrt COMB
Core sites NOT used
SANT -10.0 10.8 15.5 15.4 -14.6 20.4 EMR wrt COMB
Additional Sites
FORT -3.4 7.1 9.3 11.9 -14.8 24.9 EMR wrt COMB
AREQ -4.8 9.2 13.5 15.0 -12.5 19.1 EMR wrt COMB
MCM4 -5.3 7.8 -19.2 8.9 7.4 19.7 EMR wrt COMB
GUAM -18.8 11.8 -1.7 35.3 -29.8 75.0 EMR wrt COMB
KIT3 6.6 6.5 -3.7 12.3 -3.8 20.3 EMR wrt COMB
CENTER JPL
-------------------
VARIANCE RESCALING FACTOR FOR JPL 12.66
Transformation of loose solution JPL to COMB
-----------------------------------------------
For 9 Sites, RMS after 7 parameter transformation 2.2 mm JPL wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-5.6 1.4 26.9 1.3 -36.3 1.3 -1.667 0.384 JPL
Adjustments to core site positions for JPL
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR -0.4 1.2 -4.5 2.4 -13.8 6.6 JPL wrt COMB
ALGO 2.5 1.3 2.5 1.5 -5.2 5.4 JPL wrt COMB
YELL 3.2 1.2 -2.5 1.2 0.2 6.0 JPL wrt COMB
FAIR 1.9 1.3 -1.5 1.3 -5.3 6.2 JPL wrt COMB
KOKB -1.3 1.6 1.4 2.2 7.9 10.1 JPL wrt COMB
YAR1 -0.9 1.5 2.0 2.1 -5.3 6.5 JPL wrt COMB
HART 1.4 1.7 2.6 2.0 26.3 7.0 JPL wrt COMB
TROM 0.1 1.7 -4.0 2.5 -2.4 7.7 JPL wrt COMB
KOSG 1.6 1.1 -0.9 1.4 -2.3 5.2 JPL wrt COMB
Core sites NOT used
SANT -6.2 3.6 -1.1 4.1 6.2 8.5 JPL wrt COMB
Additional Sites
FORT -2.1 2.3 -2.2 3.0 1.8 8.0 JPL wrt COMB
AREQ -6.8 3.1 -0.7 4.0 0.9 9.4 JPL wrt COMB
MCM4 -2.8 3.0 -7.1 3.4 -4.4 10.6 JPL wrt COMB
KIT3 2.5 2.8 -1.8 4.0 -12.1 12.6 JPL wrt COMB
CENTER GFZ
-------------------
VARIANCE RESCALING FACTOR FOR GFZ 102.55
Transformation of loose solution GFZ to COMB
-----------------------------------------------
For 10 Sites, RMS after 7 parameter transformation 4.4 mm GFZ wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-1.8 2.3 150.3 2.2 -41.0 2.4 -0.539 0.710 GFZ
Adjustments to core site positions for GFZ
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 1.5 2.9 -1.6 5.7 0.9 16.0 GFZ wrt COMB
ALGO -5.3 3.7 -6.0 6.1 -10.9 14.6 GFZ wrt COMB
YELL -1.7 3.4 7.8 5.5 -16.5 16.2 GFZ wrt COMB
FAIR 2.2 3.6 5.1 5.4 -9.6 17.2 GFZ wrt COMB
KOKB 6.2 5.0 5.2 9.2 1.8 29.7 GFZ wrt COMB
TIDB 2.2 3.5 -1.4 6.6 17.6 20.2 GFZ wrt COMB
YAR1 1.8 3.5 -8.2 6.6 6.3 18.9 GFZ wrt COMB
HART -7.8 5.0 -7.0 6.1 3.4 17.6 GFZ wrt COMB
TROM 7.9 3.7 8.5 4.9 6.0 17.7 GFZ wrt COMB
KOSG 5.1 3.0 10.4 4.8 1.0 14.8 GFZ wrt COMB
Core sites NOT used
SANT -15.6 8.7 -22.4 12.9 -60.0 19.9 GFZ wrt COMB
Additional Sites
FORT -11.6 5.9 -5.6 10.9 -55.9 22.3 GFZ wrt COMB
AREQ -8.0 7.8 -18.8 12.5 -37.8 19.4 GFZ wrt COMB
MCM4 22.2 6.7 -10.6 8.1 61.2 26.1 GFZ wrt COMB
KIT3 0.6 5.2 14.0 9.5 -12.2 17.9 GFZ wrt COMB
CENTER COD
-------------------
VARIANCE RESCALING FACTOR FOR COD 13.68
Transformation of loose solution COD to COMB
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 2.7 mm COD wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-15.7 1.3 25.9 1.3 -41.5 1.3 -1.206 0.407 COD
Adjustments to core site positions for COD
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR -3.9 1.0 1.8 1.3 9.3 5.0 COD wrt COMB
ALGO 0.8 1.0 -2.2 1.2 2.1 4.4 COD wrt COMB
YELL -2.2 0.9 -1.1 0.9 -2.1 5.3 COD wrt COMB
GOLD -0.3 1.1 -1.5 1.3 -2.6 6.2 COD wrt COMB
FAIR -3.9 1.1 -1.4 1.2 9.0 6.1 COD wrt COMB
KOKB 1.7 1.6 3.3 3.0 9.8 9.0 COD wrt COMB
TIDB 0.7 1.1 2.9 2.1 -10.4 6.4 COD wrt COMB
YAR1 0.8 1.2 -5.9 2.2 -3.3 5.8 COD wrt COMB
HART 0.3 1.8 0.9 2.4 -12.8 6.4 COD wrt COMB
TROM -0.9 1.2 1.2 1.1 3.1 6.3 COD wrt COMB
KOSG -3.2 0.9 1.8 1.1 -2.2 4.3 COD wrt COMB
Core sites NOT used
SANT 1.9 3.5 5.4 4.5 -15.1 6.7 COD wrt COMB
Additional Sites
FORT 1.1 2.3 6.5 3.4 -17.2 8.2 COD wrt COMB
AREQ 4.0 2.9 5.7 4.5 -13.5 6.6 COD wrt COMB
MCM4 -0.8 3.0 1.6 3.1 25.4 8.9 COD wrt COMB
GUAM -0.4 2.7 5.4 7.3 5.7 17.2 COD wrt COMB
KIT3 -2.4 1.8 3.1 2.9 -6.3 6.3 COD wrt COMB
CENTER SIO
-------------------
VARIANCE RESCALING FACTOR FOR SIO 1.099
Transformation of loose solution SIO to COMB
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 2.1 mm SIO wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-9.6 1.1 36.5 1.0 -12.8 1.1 -0.200 0.320 SIO
Adjustments to core site positions for SIO
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 1.6 0.9 -2.5 2.0 1.9 5.6 SIO wrt COMB
ALGO -3.4 1.3 4.9 1.9 4.1 3.7 SIO wrt COMB
YELL 0.2 1.1 1.6 1.7 5.4 4.2 SIO wrt COMB
FAIR 2.4 1.3 3.7 1.8 5.5 6.2 SIO wrt COMB
KOKB -0.9 1.7 -10.2 2.9 -2.9 7.4 SIO wrt COMB
TIDB -1.9 1.3 -0.3 2.5 -5.6 7.6 SIO wrt COMB
YAR1 -2.4 1.3 4.2 2.4 -7.8 6.5 SIO wrt COMB
HART 0.1 1.8 1.9 2.4 6.1 4.9 SIO wrt COMB
TROM 1.1 1.1 0.1 1.5 -1.0 4.9 SIO wrt COMB
WETT 2.3 0.9 0.2 1.4 -1.1 3.9 SIO wrt COMB
KOSG 1.3 1.0 0.5 1.7 -4.6 5.5 SIO wrt COMB
Core sites NOT used
SANT -4.8 3.2 -0.4 4.5 11.5 5.6 SIO wrt COMB
Additional Sites
FORT -5.1 2.3 2.3 3.3 14.7 5.4 SIO wrt COMB
AREQ -7.0 2.9 3.2 4.5 9.2 5.6 SIO wrt COMB
MCM4 -4.8 2.3 0.9 2.8 -1.6 6.2 SIO wrt COMB
KIT3 -1.6 1.8 -0.7 3.0 13.5 4.5 SIO wrt COMB
CENTER NGS
-------------------
VARIANCE RESCALING FACTOR FOR NGS 415
Transformation of loose solution NGS to COMB
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 7.1 mm NGS wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-26.6 3.6 236.2 3.5 -71.6 3.6 -0.308 1.090 NGS
Adjustments to core site positions for NGS
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR -0.6 5.0 1.7 7.8 -13.4 14.2 NGS wrt COMB
ALGO 0.4 5.6 4.8 9.8 9.1 9.9 NGS wrt COMB
YELL -3.6 6.3 -4.0 8.0 -1.3 12.0 NGS wrt COMB
GOLD 5.4 5.2 4.2 7.1 -12.5 16.2 NGS wrt COMB
FAIR -2.5 7.6 -2.8 9.9 -23.9 17.3 NGS wrt COMB
KOKB -2.6 8.8 -3.3 12.5 -8.1 23.5 NGS wrt COMB
TIDB 8.3 5.9 14.1 10.1 21.4 20.2 NGS wrt COMB
YAR1 -1.8 6.2 -12.8 9.5 12.6 21.5 NGS wrt COMB
HART 1.5 9.1 -0.2 10.8 3.6 15.9 NGS wrt COMB
TROM 3.8 8.6 -5.1 9.7 10.0 13.9 NGS wrt COMB
KOSG -0.9 5.8 -0.6 7.1 2.5 12.7 NGS wrt COMB
Core sites NOT used
SANT -4.3 21.2 2.3 26.6 -23.5 21.3 NGS wrt COMB
Additional Sites
FORT -1.6 12.8 19.0 22.6 34.6 27.9 NGS wrt COMB
AREQ 6.4 16.6 -3.2 23.6 -4.9 22.3 NGS wrt COMB
MCM4 28.4 13.5 4.0 14.1 37.5 20.4 NGS wrt COMB
GUAM -40.9 24.1 51.1 51.8 0.3 108.2 NGS wrt COMB
KIT3 -11.2 11.6 12.3 14.2 -17.6 22.0 NGS wrt COMB
CENTER ESA
-------------------
VARIANCE RESCALING FACTOR FOR ESA 6.24
Transformation of loose solution ESA to COMB
-----------------------------------------------
For 11 Sites, RMS after 7 parameter transformation 8.1 mm ESA wrt COMB
X-tran +- Y-tran +- Z-tran +- Scale +-
(mm) (mm) (mm) (mm) (mm) (mm) (ppb) (ppb)
-9.4 4.0 -33.6 4.0 -22.0 4.1 -4.962 1.239 ESA
Adjustments to core site positions for ESA
SITE dNorth +- dEast +- dUp +-
(mm) (mm) (mm) (mm) (mm) (mm)
MADR 2.9 1.9 -6.1 3.4 -6.3 16.4 ESA wrt COMB
ALGO -1.4 2.0 7.5 3.4 -36.2 13.1 ESA wrt COMB
YELL 0.9 1.7 0.9 2.8 -18.0 14.8 ESA wrt COMB
GOLD -0.1 2.0 -1.9 3.3 20.0 18.8 ESA wrt COMB
FAIR -2.9 2.1 -4.6 2.9 10.8 17.7 ESA wrt COMB
KOKB -0.5 2.7 0.3 4.9 -46.8 25.9 ESA wrt COMB
TIDB 1.4 2.5 9.2 3.9 -30.3 17.5 ESA wrt COMB
YAR1 3.3 2.4 0.8 4.7 90.2 16.5 ESA wrt COMB
HART 3.5 3.3 -5.4 5.3 -5.1 18.4 ESA wrt COMB
TROM -1.6 2.3 1.8 2.9 19.5 18.6 ESA wrt COMB
KOSG 0.2 1.8 -2.8 2.9 2.1 13.2 ESA wrt COMB
Core sites NOT used
SANT 13.5 5.7 8.5 9.2 62.6 18.7 ESA wrt COMB
Additional Sites
FORT 5.4 3.9 -6.3 11.7 -98.9 23.6 ESA wrt COMB
AREQ 6.5 4.9 17.4 9.8 23.6 17.3 ESA wrt COMB
MCM4 5.9 5.6 17.9 5.6 -173.7 33.5 ESA wrt COMB
GUAM 11.6 4.9 34.9 28.7 -21.4 65.6 ESA wrt COMB
KIT3 4.7 3.7 7.9 7.6 7.4 26.6 ESA wrt COMB
[Mailed From: Tom Herring <tah at mtglas.mit.edu>]
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