[IGSREPORT-4845] Wk 0949 G-SINEX Comparisons
AC
AC
Thu Apr 30 12:51:44 PDT 1998
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IGS Electronic Report Thu Apr 30 12:51:44 PDT 1998 Message Number 4845
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0949 G-SINEX Comparisons
Subject: Wk 0949 G-SINEX Comparisons
Comparison of GNAAC Combined SINEX Solutions - Week 0949
(MAR 15, 1998 - MAR 21, 1998)
Contacts: J. Kouba (kouba at geod.emr.ca)
D. Hutchison(hutch at geod.emr.ca)
R. Ferland (ferland at geod.emr.ca)
COMPARISON ALGORITHM:
1. MIT and NCL GNAAC combined SINEX solutions for the week in question
were deconstrained. The JPL SINEX file is already unconstrained.
2. Any stations not present in all GNAAC combined SINEX files were de-
leted from all three combined solutions. Every solution was then sub-
jected to a 7-parameter transformation into a common reference system
(the 47 ITRF96 station positions).
3. Outliers are determined at the 99.0% confidence level for each coordin-
ate. If a station has an outlier in either latitude, longitude, or
height, it is ignored in all subsequent computations.
FILES COMPARED:
mit0949g.snx at cddis.gsfc.nasa.gov
jpl0949g.snx at cddis.gsfc.nasa.gov
ncl0949g.snx at cddis.gsfc.nasa.gov
GNAACs: MIT JPL NCL
STATIONS WITH INCONSISTENT ANTENNA ECCENTRICITY INFORMATION:
(FILE: / STATION / L1 (UNE) / L2 (UNE) / ECCENTRICITY (UNE))
(UNE = Up North East (metres))
jpl0949g.snx: BISH .075 .002 -.001 .069 -.001 .002 .046 .000 .000
mit0949g.snx: BISH .078 .000 -.003 .074 -.003 -.001 .046 .000 .000
- Unresolvable (no log file)
jpl0949g.snx: CAGL .110 .000 .000 .128 .000 .000 .000 .000 .000
mit0949g.snx: CAGL .110 .000 .000 .128 .000 .000 .010 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.045 M.
jpl0949g.snx: ELAT .069 .000 .000 .068 .000 .000 -.011 .000 .000
mit0949g.snx: ELAT .078 .000 -.003 .074 -.003 -.001 -.011 .000 .000
- Unresolvable (no log file)
jpl0949g.snx: GALA .110 .000 .000 .128 .000 .000 .000 .000 .000
mit0949g.snx: GALA .110 .000 .000 .128 .000 .000 .083 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.081 M.
jpl0949g.snx: KATZ .069 .000 .000 .068 .000 .000 -.012 .000 .000
mit0949g.snx: KATZ .078 .000 -.003 .074 -.003 -.001 -.012 .000 .000
- Unresolvable (no log file)
jpl0949g.snx: KOUR .078 .000 .000 .096 .000 .000 .132 .000 .000
mit0949g.snx: KOUR .078 .000 .000 .096 .000 .000 -.009 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.045 M.
jpl0949g.snx: MALI .078 .000 .000 .096 .000 .000 .222 .000 .000
mit0949g.snx: MALI .078 .000 .000 .096 .000 .000 .167 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.135 M.
jpl0949g.snx: MOIN .110 .000 .000 .128 .000 .000 .994 .000 .000
mit0949g.snx: MOIN .110 .000 .000 .128 .000 .000 .274 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.086 M.
jpl0949g.snx: NOUM .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
mit0949g.snx: NOUM .075 .002 -.001 .069 -.001 .002 .000 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.000 M.
jpl0949g.snx: TELA .069 .000 .000 .068 .000 .000 .000 .000 .000
mit0949g.snx: TELA .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
- Unresolvable (no log file)
jpl0949g.snx: TROM .078 .000 .000 .096 .000 .000 2.473 .000 .000
mit0949g.snx: TROM .078 .000 .000 .096 .000 .000 2.473 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 2.369 M.
jpl0949g.snx: WSRT .110 .000 .000 .128 .000 .000 .380 .000 .000
mit0949g.snx: WSRT .110 .000 .000 .128 .000 .000 .380 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.389 M.
jpl0949g.snx: YAR1 .078 .000 .000 .096 .000 .000 .073 .000 .000
mit0949g.snx: YAR1 .078 .000 .000 .096 .000 .000 .114 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity 0.081 M.
jpl0949g.snx: HARK .110 .000 .000 .128 .000 .000 9.754 .000 .000
jpl0949g.snx: HOFN .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0949g.snx: HRAO .110 .000 .000 .128 .000 .000 9.754 .000 .000
jpl0949g.snx: LPGS .110 .000 .000 .128 .000 .000 .000 .000 .000
ncl0949g.snx: MDVO Antenna information missing .146 .000 .000
jpl0949g.snx: NICO .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0949g.snx: SELE .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0949g.snx: SFER .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0949g.snx: SOFI .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0949g.snx: WUHN .110 .000 .000 .128 .000 .000 2.320 .000 .000
jpl0949g.snx: ZECK .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0949g.snx: ZIMM .069 .000 .000 .068 .000 .000 .000 .000 .000
FILE ncl0949g.snx MISSING THE SITE/GPS_PHASE_CENTER BLOCK.
DEFAULTING TO KNOWN L1/L2 OFFSETS AND ECCENTRICITIES.
CONFIDENCE LEVEL FOR OUTLIER DETECTION (ITRF96): 99%
OUTLIERS REJECTED (COORD/STATION/GNAACs):
Lat KERG MIT-JPL Lat DAV1 MIT-JPL Lat CAS1 MIT-JPL
Lat KERG MIT-NCL Lon EISL MIT-JPL Lon AREQ MIT-JPL
Lon TAEJ MIT-JPL Lon GRAZ MIT-JPL Lon KIRU MIT-JPL
Lon KIRU MIT-NCL Lon ANKR MIT-NCL Hgt HOB2 MIT-JPL
Hgt TAHI MIT-NCL Hgt IISC MIT-NCL Hgt HOB2 MIT-NCL
58 GLOBAL STATIONS:
ALBH ALGO ASC1 AUCK BAHR BOGT BRMU BRUS CHAT COCO
CRO1 DGAR DRAO FAIR FLIN FORT GODE GOLD GUAM IRKT
KELY KIT3 KOKB KOSG KSTU KWJ1 LHAS MAC1 MADR MAG0
MATE MCM4 MDO1 METS MKEA NLIB NRC1 OHIG ONSA PERT
PIE1 POTS RCM6 REYK SANT SHAO STJO TIDB TROM TSKB
USNO USUD WES2 WHIT WTZR YAR1 YELL ZWEN
38 FIDUCIAL STATIONS:
ALGO BRMU DAV1 DRAO FAIR FORT GODE GOLD GRAZ GUAM
HOB2 IRKT KERG KIT3 KOKB KOSG KWJ1 LHAS MAC1 MADR
MATE MDO1 NLIB OHIG ONSA PERT PIE1 POTS SANT SHAO
TIDB TROM TSKB WES2 WTZR YAR1 YELL ZWEN
AVERAGE COORDINATE RMS USING ITRF96:
58 GLOBAL STATIONS 38 FIDUCIAL STATIONS
MIT-JPL MIT-NCL JPL-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
(mm) (mm) (mm) (mm) (mm) (mm)
------- ------- ------- ---------- ---------- ----------
Lat 1.7 1.5 0.5 4.3 5.1 4.8
Lon 2.3 2.2 0.6 5.1 5.3 5.3
Hgt 3.2 3.2 1.4 10.6 10.0 9.7
3D 4.3 4.1 1.6 12.5 12.4 12.1
VARIANCE FACTORS WITH ITRF96 (CHI-SQUARE / (DEGREES OF FREEDOM)):
58 GLOBAL STATIONS 38 FIDUCIAL STATIONS
JPL-NCL MIT-JPL MIT-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
------- ------- ------- ---------- ---------- ----------
0.103 0.727 0.830 3.297 4.123 2.742
OFFSETS AND SCALE FACTOR WRT ITRF96 (FIDUCIAL STATIONS):
(TRANSFORMATION FROM ITRF96 TO GNAAC SINEX FILES)
Tx (mm) STD(mm) Ty (mm) STD(mm) Tz (mm) STD(mm) Scale (ppb) STD(ppb)
------- ------- ------- ------- ------- ------- ----------- --------
JPL -5.8 2.7 17.6 2.8 -23.2 4.8 -1.2 0.1
MIT -9.2 1.9 -1.4 1.9 -27.2 2.8 -1.0 0.1
NCL -5.1 2.9 17.4 3.1 -13.5 5.1 -1.0 0.2
REMARKS:
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0949g.snx :
Stations: BRAZ HART MASP THU1 VILL
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0949g.snx :
Stations: BRAZ THU1 VILL
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0949g.snx :
Stations: BRAZ HART MASP THU1 VILL
IERS DOMES NO JPL MIT NCL
============= ====== ====== ======
42202M005 AREQ A AREQ A AREQ A
ARE1 A
40451M123 GODE A GODE A GODE A
40451S003 USNO A
40405S031 GOL2 A GOLD A GOLD A
GOL1 A GOL2 A
GOLD A
30302M002 HART A HARK A
HARK A
HAR1 A
HRAO A
30302M004 HRAO A
30302M007 HARK A
22306M001 IISC A IISC A
22306M002 IISC A
13407S012 MADR A MAD2 A MADR A
MAD2 A MADR A
31303M002 MAS1 A
31303M001 MASP A MAS1 A
12309M002 MDVO A MDVO A
12309M001 MDVO A
40499S018 RICH A
40499S020 RICH A RCM6 A
50103M108 TIDB A TIDB A TIDB A
TID2 A TID2 A
21729S007 USUD A USUD A USUD A
USUX A
50107M004 YAR1 A YAR1 A YAR1 A
YAR2 A
MISSING IERS DOMES NOS AT JPL:
-----------------------------
AOML A ASC1 A BAHR A BISH A CASA A CHUR A COCO A DGAR A ELAT A FLIN A
HFLK A HOLB A KATZ A KWJ1 A MAG0 A MEDI A MKEA A MOIN A NANO A NOTO A
NOUM A PETR A LPGS A NICO A GALA A SFER A ZECK A HOFN A CAGL A PRDS A
RCM6 A RIOG A SELE A SOFI A SOL1 A SCH2 A TELA A TOUL A UCLU A USNA A
USNO A WHIT A WSLR A XIAN A YAKA A YAKZ A
MISSING IERS DOMES NOS AT MIT:
-----------------------------
SFER A ASC1 A HOFN A LPGS A SCH2 A RIOG A SOL1 A USNA A USNO A AOML A
RCM6 A MOIN A GALA A CHUR A DUBO A FLIN A PRDS A CASA A WILL A WSLR A
NANO A UCLU A HOLB A WHIT A MKEA A KWJ1 A NOUM A PETR A MAG0 A YAKZ A
YAKA A XIAN A COCO A KSTU A SELE A BISH A DGAR A BAHR A ZECK A KATZ A
ELAT A TELA A NICO A SOFI A NOTO A MEDI A HFLK A OBER A CAGL A WSRT A
TOUL A
IERS DOMES NO COD NRC ESA GFZ JPL NOA SIO
============= ====== ====== ====== ====== ====== ====== ======
50107M004 YAR1 A YAR1 A YAR1 A YAR2 A YAR1 A YAR1 A YAR1 A
30302M004 HRAO A HRAO A
30302M007 HART A HART B HART B HARK A HART B
30302M002 HART B HARK A
31303M002 MASP A MASP B MASP B MAS1 A MAS1 A MASP B
31303M001 MASP A
12309M002 MDVO A MDVO A
12309M001 MDVO A
42202M005 AREQ A AREQ B AREQ B AREQ A AREQ A AREQ B AREQ A
40451M123 GODE A GODE A GODE A GODE A GODE A
40451S003 USNO A USNO A USNO A
40405S031 GOLD A GOLD A GOLD A GOL2 A GOL2 A GOLD B GOLD A
40499S020 RICH A RCM6 A RCM6 A RCM6 A
50103M108 TIDB A TIDB A TIDB A TID2 A TID2 A TIDB A TIDB A
22306M002 IISC A IISC A IISC A
22306M001 IISC A IISC A
13407S012 MADR A MAD2 A MADR A MADR A
MISSING IERS DOMES NOS AT GFZ:
-----------------------------
BISH A RIOG A
MISSING IERS DOMES NOS AT JPL:
-----------------------------
ASC1 A BAHR A CASA A COCO A DGAR A FLIN A KWJ1 A MAG0 A MKEA A MOIN A
NOTO A NICO A GALA A RCM6 A USNO A
MISSING IERS DOMES NOS AT NOA:
-----------------------------
MKEA A GALA A
MISSING IERS DOMES NOS AT SIO:
-----------------------------
MAD2 A SFER A ASC1 A HOFN A LPGS A CRO1 A SCH2 A NRC1 A SOL1 A USNA A
USNO A AOML A RCM6 A CHUR A DUBO A FLIN A PRDS A WILL A WSLR A NANO A
UCLU A HOLB A WHIT A TAHI A MKEA A KWJ1 A NOUM A PETR A MAG0 A USUX A
YAKA A YAKZ A WUHN A XIAN A COCO A KSTU A SELE A DGAR A BAHR A ZECK A
KATZ A ELAT A TELA A NICO A HARK A SOFI A NOTO A MEDI A HFLK A OBER A
CAGL A WSRT A TOUL A
--
David Hutchison
Geodetic Survey of Canada
Ottawa, Ontario, Canada
Internet: hutch at geod.emr.ca
[Mailed From: David Hutchison <hutch at geod.emr.ca>]
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