[IGSREPORT-5240] Wk 0967 G-SINEX Comparisons
AC
AC
Fri Aug 21 14:07:16 PDT 1998
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IGS Electronic Report Fri Aug 21 14:07:16 PDT 1998 Message Number 5240
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0967 G-SINEX Comparisons
Comparison of GNAAC Combined SINEX Solutions - Week 0967
(JUL 19, 1998 - JUL 25, 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:
jpl0967g.snx at cddis.gsfc.nasa.gov
mit0967g.snx at cddis.gsfc.nasa.gov
ncl0967g.snx at cddis.gsfc.nasa.gov
GNAACs: JPL MIT NCL
STATIONS WITH INCONSISTENT ANTENNA ECCENTRICITY INFORMATION:
(FILE: / STATION / L1 (UNE) / L2 (UNE) / ECCENTRICITY (UNE))
(UNE = Up North East (metres))
jpl0967g.snx: INEG .000 .000 .000 .000 .000 .000 .130 .000 .000
mit0967g.snx: INEG .080 .000 .001 .079 -.001 .001 .130 .000 .000
- Unresolvable. No log file.
jpl0967g.snx: MDVO .000 .000 .000 .000 .000 .000 .146 .000 .000
mit0967g.snx: MDVO .078 .000 -.003 .074 -.003 -.001 .146 .000 .000
- Latest log file indicates L1/L2 offset should be 0.0692 M.
(Not listed in igs.snx.)
jpl0967g.snx: HFLK .078 .000 .000 .096 .000 .000 .000 .000 .000
mit0967g.snx: HFLK .110 .000 .000 .128 .000 .000 -.020 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity -.020 M.
jpl0967g.snx: SUTH .000 .000 .000 .000 .000 .000 .119 .000 .000
mit0967g.snx: SUTH .000 .000 .000 .000 .000 .000 .119 .000 .000
- Both wrong. Should be L1/L2 offset .110, .128 M., eccentricity .119 M.
mit0967g.snx: TAHI .110 .000 .000 .128 .000 .000 1.047 .000 .000
- Conflicts with log file. As yet no records in igs.snx.
See REMARKS below re TAHI, THTI.
mit0967g.snx: FAIR .110 .000 .000 .128 .000 .000 .116 .000 .000
mit0967g.snx: GOLD .110 .000 .000 .128 .000 .000 .000 .000 .000
ncl0967g.snx: HRAO .110 .000 .000 .128 .000 .000 .000 .000 .000
mit0967g.snx: KOKB .110 .000 .000 .128 .000 .000 .093 .000 .000
jpl0967g.snx: MONP .000 .000 .000 .000 .000 .000 .119 .000 .000
mit0967g.snx: SANT .110 .000 .000 .128 .000 .000 .093 .000 .000
mit0967g.snx: TROM .078 .000 .000 .096 .000 .000 2.475 .000 .000
mit0967g.snx: YAR1 .110 .000 .000 .128 .000 .000 .073 .000 .000
FILE ncl0967g.snx MISSING THE SITE/GPS_PHASE_CENTER BLOCK.
DEFAULTING TO KNOWN L1/L2 OFFSETS AND ECCENTRICITIES.
ANTENNA PHASE CENTRE CONFLICTS IN FILE jpl0967g.snx
(MODEL / SER. NO. / L1 (UNE) / L2 (UNE))
(UNE = Up North East (metres))
DORNE MARGOLIN B ----- .078 .000 .000 .096 .000 .000
DORNE MARGOLIN B ----- .000 .000 .000 .000 .000 .000
SITES AFFECTED BY ABOVE CONFLICTS, NON-FIDUCIAL SITES SUBSEQUENTLY EXCLUDED:
Stations: NYAL
ANTENNA PHASE CENTRE CONFLICTS IN FILE mit0967g.snx
GALA Multiple Sites
IISC Multiple Sites
SITES AFFECTED BY ABOVE CONFLICTS, NON-FIDUCIAL SITES SUBSEQUENTLY EXCLUDED:
Stations: GALA IISC
CONFIDENCE LEVEL FOR OUTLIER DETECTION (ITRF96): 99%
OUTLIERS REJECTED (COORD/STATION/GNAACs):
Lat DAV1 JPL-MIT Lat KERG JPL-MIT Lat KERG MIT-NCL
Lon COCO JPL-MIT Lon TID2 JPL-MIT Lon ASC1 JPL-MIT
Lon TID2 JPL-NCL Lon KOUR JPL-NCL Lon BOGT MIT-NCL
Lon BARB MIT-NCL Lon KOUR MIT-NCL Hgt WES2 JPL-MIT
Hgt BARB JPL-NCL Hgt BARB MIT-NCL Hgt WUHN MIT-NCL
75 GLOBAL STATIONS:
ALBH ALGO ANKR AREQ AUCK BAHR BRMU CAS1 CHAT CRO1
DGAR DRAO EISL FAIR FORT GODE GOL2 GOLD GRAZ GUAM
HARK HOB2 IRKT KELY KIRU KIT3 KOKB KOSG KSTU KWJ1
LHAS LPGS MAC1 MAG0 MALI MAS1 MATE MCM4 MDO1 METS
MKEA NLIB NRC1 NTUS NYA1 OHIG ONSA PERT PETR PIE1
POL2 POTS RCM6 REYK SANT SHAO STJO TAEJ THTI THU1
TIDB TROM TSKB USNO USUD VILL WHIT WSRT WTZR XIAN
YAKZ YAR1 YELL ZECK ZWEN
41 FIDUCIAL STATIONS:
ALGO BRMU DAV1 DRAO FAIR FORT GODE GOLD GRAZ GUAM
HOB2 IRKT KERG KIT3 KOKB KOSG KOUR KWJ1 LHAS MAC1
MALI MATE MDO1 NLIB OHIG ONSA PERT PIE1 POTS SANT
SHAO THU1 TIDB TROM TSKB VILL WES2 WTZR YAR1 YELL
ZWEN
AVERAGE COORDINATE RMS USING ITRF96:
75 GLOBAL STATIONS 41 FIDUCIAL STATIONS
JPL-MIT JPL-NCL MIT-NCL JPL-ITRF96 MIT-ITRF96 NCL-ITRF96
(mm) (mm) (mm) (mm) (mm) (mm)
------- ------- ------- ---------- ---------- ----------
Lat 1.0 0.5 1.2 4.6 4.1 4.6
Lon 0.7 0.6 0.7 6.1 5.9 6.0
Hgt 1.9 1.2 2.2 12.2 12.6 12.0
3D 2.3 1.4 2.6 14.3 14.5 14.2
VARIANCE FACTORS WITH ITRF96 (CHI-SQUARE / (DEGREES OF FREEDOM)):
82 GLOBAL STATIONS 41 FIDUCIAL STATIONS
JPL-MIT JPL-NCL MIT-NCL JPL-ITRF96 MIT-ITRF96 NCL-ITRF96
------- ------- ------- ---------- ---------- ----------
0.167 0.038 0.135 5.009 3.588 2.245
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 -2.6 1.8 3.5 2.4 -33.4 4.6 -0.3 0.1
MIT -1.9 2.0 2.2 2.0 -32.0 3.2 -0.6 0.1
NCL -0.8 3.2 3.1 3.3 -26.1 4.9 -0.2 0.2
REMARKS:
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0967g.snx :
Stations: BRAZ
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0967g.snx :
Stations: BRAZ MASP
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0967g.snx :
Stations: BRAZ HART MADR MASP
IERS DOMES NO JPL MIT NCL
============= ====== ====== ======
42202M005 AREQ A AREQ A AREQ A
ARE1 A
42005M001 GALA A GALA A GALA A
GAL1 A GALA B
40451M123 GODE A GODE A GODE A
40451S003 USNO A USNO A USNO A
40405S031 GOL2 A GOLD A GOL2 A
GOLD A GOL2 A GOLD A
GOL1 A
30302M007 HARK A HARK A HARK A
HART A HART B
HAR1 A
30302M004 HRAO A HRAO A HRAO A
22306M002 IISC A IISC A IISC A
IIS1 A IISC B
13407S012 MAD2 A MAD2 A
MADR A MADR A
31303M002 MAS1 A MAS1 A
MASP A
31303M001 MAS1 A
12309M002 MDVO A
12309M001 MDVO A
10317M003 NYA1 A NYA1 A NYA1 A
10317M001 NYAL A NYAL A NYAL A
40499S020 RCM6 A RCM6 A RCM6 A
RICH A RICH A
92201M006 TAHI A
92201M009 THTI A THTI A THTI A
TAHI A
50103M108 TID2 A TID2 A TID2 A
TIDB A TIDB A TIDB A
10302M006 TRO1 A TRO1 A
10302M003 TROM A TROM A TROM A
12353M001 YAKA A YAKZ A YAKZ A
YAKZ A YAKA A
50107M004 YAR1 A YAR1 A YAR1 A
YAR2 A
MISSING IERS DOMES NOS AT JPL:
-----------------------------
ALIC A BAKO A BISH A ELAT A INEG A KATZ A MAW1 A RAMO A RIOG A TELA A
URUM A
MISSING IERS DOMES NOS AT MIT:
-----------------------------
RIOG A INEG A BAKO A URUM A BISH A KATZ A ELAT A TELA A RAMO A
IERS DOMES NO COD NRC GFZ JPL NOA SIO
============= ====== ====== ====== ====== ====== ======
22306M002 IISC A IISC A IISC A IISC B IISC A
50107M004 YAR1 A YAR1 A YAR2 A YAR1 A YAR1 A YAR1 A
30302M004 HRAO A HRAO A
30302M007 HART A HARK A HARK A HARK A HART B HARK A
31303M002 MASP A MAS1 A MAS1 A MAS1 A MASP B MAS1 A
42005M001 GALA A GALA A GALA A GALA B
42202M005 AREQ A AREQ A AREQ A AREQ B AREQ A
12353M001 YAKZ A YAKA A YAKZ A
YAKZ A
40451S003 USNO A USNO A USNO A
40451M123 GODE A GODE A GODE A
40405S031 GOLD A GOLD A GOL2 A GOL2 A GOLD B GOL2 A
40499S020 RICH A RCM6 A RCM6 A RCM6 A RCM6 A
50103M108 TIDB A TID2 A TID2 A TIDB A TID2 A
92201M009 TAHI A THTI A THTI A THTI A THTI A
10317M003 NYAL A NYA1 A NYA1 A
10317M001 NYAL A NYAL A NYAL A
10302M006 TROM A TRO1 A
10302M003 TROM A TROM A
22601M001 NTUS A NTUS A NTUS A NTUS A
22601M002 NTUS A
13407S012 MAD2 A MADR A MAD2 A
MISSING IERS DOMES NOS AT GFZ:
-----------------------------
BISH A URUM A RIOG A
MISSING IERS DOMES NOS AT SIO:
-----------------------------
INEG A BAKO A KATZ A ELAT A TELA A RAMO 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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