[IGSREPORT-10113] Wk 1209 MIT T2 Analysis Report
Tom Herring
tah at chandler.mit.edu
Thu Mar 27 00:52:00 PST 2003
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IGS Electronic Report 27 Mar 00:53:18 PST 2003 Message Number 10113
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Author: Thomas Herring
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MIT ANALYSIS REPORT GPS-WEEK 1209 Dates: 03mar09 to 03mar15
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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
MIT1209g.SNX Combined sinex file from all available analysis centers
MIT1209g.SUM Name of this summary file
MIT1209g.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 # North East Up
RMS Chi RMS Chi RMS Chi
(mm) (mm) (mm)
COD 150 1.5 .5 1.7 .6 16.1 1.5
JPL 104 2.0 .6 1.9 .6 20.2 1.7
SIO 145 2.3 .9 1.9 .6 12.3 1.8
EMR 39 2.4 .8 2.0 .7 28.2 2.7
ESA 61 4.5 1.7 4.3 .8 29.8 3.2
GFZ 180 1.8 .5 1.8 .5 18.9 1.5
NGS 73 4.3 1.4 3.7 .9 24.6 2.8
JPL 1 .0 .0 .0 .0 .0 .0
MIT 146 2.1 1.1 2.6 .8 12.6 2.3
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
COM OHI2 Eccentricity: Used .0000 .0000 .0008 Real .0000 .0000 -.0080 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 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 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
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
MIT KOUR Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m
MIT KOUR Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m
MIT BREW Used ASH701945C_M dL1 .0005 .0003 .1090 dL2 .0003 .0012 .1279 m
MIT BREW Real ASH701945C_M dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m
MIT HOLB Used LEIAT504 dL1 .0000 .0000 .1100 dL2 .0000 .0000 .1280 m
MIT HOLB Real LEIAT504 dL1 .0003 -.0003 .1093 dL2
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