[IGSREPORT-5104] Wk 0961 G-SINEX Comparisons
AC
AC
Thu Jul 9 17:47:33 PDT 1998
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IGS Electronic Report Thu Jul 9 17:47:33 PDT 1998 Message Number 5104
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0961 G-SINEX Comparisons
Subject: Wk 0961 G-SINEX Comparisons
Comparison of GNAAC Combined SINEX Solutions - Week 0961
(JUN 7, 1998 - JUN 13, 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:
mit0961g.snx at cddis.gsfc.nasa.gov
jpl0961g.snx at cddis.gsfc.nasa.gov
ncl0961g.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))
jpl0961g.snx: BARB .000 .000 .000 .000 .000 .000 .000 .000 .000
mit0961g.snx: BARB .110 .000 .000 .128 .000 .000 .000 .000 .000
- Unresolvable (no log file)
jpl0961g.snx: INEG .000 .000 .000 .000 .000 .000 .130 .000 .000
mit0961g.snx: INEG .080 .000 .001 .079 -.001 .001 .130 .000 .000
- Unresolvable. No log file.
jpl0961g.snx: MDVO .000 .000 .000 .000 .000 .000 .146 .000 .000
mit0961g.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.)
jpl0961g.snx: MONP .000 .000 .000 .000 .000 .000 .119 .000 .000
jpl0961g.snx: SFER .075 .002 -.001 .069 -.001 .002 1.626 .000 .000
jpl0961g.snx: SUTH .000 .000 .000 .000 .000 .000 .119 .000 .000
mit0961g.snx: TROM .078 .000 .000 .096 .000 .000 2.475 .000 .000
mit0961g.snx: WUHN .110 .000 .000 .128 .000 .000 2.320 .000 .000
FILE ncl0961g.snx MISSING THE SITE/GPS_PHASE_CENTER BLOCK.
DEFAULTING TO KNOWN L1/L2 OFFSETS AND ECCENTRICITIES.
ANTENNA PHASE CENTRE CONFLICTS IN FILE jpl0961g.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 mit0961g.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 COCO MIT-NCL Lon BOGT JPL-NCL Lon MKEA MIT-NCL
Lon BOGT MIT-NCL Hgt MCM4 JPL-NCL Hgt AREQ JPL-NCL
Hgt COCO MIT-JPL Hgt COCO MIT-NCL
53 GLOBAL STATIONS:
ALGO ASC1 AUCK BAHR BRMU CAS1 CHAT CRO1 DAV1 DGAR
DRAO EISL FAIR FORT GOLD GRAZ GUAM IRKT KELY KERG
KIT3 KOKB KOSG KOUR KWJ1 LHAS LPGS MAC1 MADR MALI
MATE MDO1 NRC1 NTUS OHIG ONSA PERT POTS RCM6 SANT
STJO THU1 TIDB TROM TSKB USNO USUD VILL WHIT WTZR
YAR1 YELL ZWEN
36 FIDUCIAL STATIONS:
ALGO BRMU DAV1 DRAO FAIR FORT GOLD GRAZ GUAM IRKT
KERG KIT3 KOKB KOSG KOUR KWJ1 LHAS MAC1 MADR MALI
MATE MDO1 OHIG ONSA PERT POTS SANT THU1 TIDB TROM
TSKB VILL WTZR YAR1 YELL ZWEN
AVERAGE COORDINATE RMS USING ITRF96:
53 GLOBAL STATIONS 36 FIDUCIAL STATIONS
MIT-JPL MIT-NCL JPL-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
(mm) (mm) (mm) (mm) (mm) (mm)
------- ------- ------- ---------- ---------- ----------
Lat 1.6 1.8 1.5 5.2 5.9 5.9
Lon 1.9 2.9 2.5 8.2 9.0 9.1
Hgt 3.7 4.9 3.8 11.3 10.6 9.7
3D 4.5 6.0 4.8 14.9 15.1 14.5
VARIANCE FACTORS WITH ITRF96 (CHI-SQUARE / (DEGREES OF FREEDOM)):
57 GLOBAL STATIONS 36 FIDUCIAL STATIONS
JPL-NCL MIT-JPL MIT-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
------- ------- ------- ---------- ---------- ----------
0.347 0.875 0.658 5.572 4.574 3.388
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 -2.8 2.7 19.0 2.8 -15.2 4.6 -0.6 0.1
MIT -6.2 1.9 13.2 2.0 -11.8 3.3 -1.3 0.1
NCL 1.6 3.7 28.9 4.2 -1.9 6.4 -0.3 0.2
REMARKS:
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0961g.snx :
Stations: BRAZ MASP SHAO
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0961g.snx :
Stations: BRAZ SHAO
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0961g.snx :
Stations: BRAZ GODE HART HOB2 MASP NLIB PIE1 SHAO WES2
IERS DOMES NO IGS MIT NCL
============= ====== ====== ======
42202M005 AREQ A AREQ A AREQ A
ARE1 A
42005M001 GALA A GALA A
GAL1 A GALA B
40451M123 GODE A GODE A
40451S003 USNO A USNO A USNO A
40405S031 GOL2 A GOL2 A GOLD A
GOLD A GOLD A
GOL1 A
30302M007 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 MADR A
31303M002 MAS1 A
MASP A
31303M001 MAS1 A
12309M002 MDVO A
12309M001 MDVO A
22601M001 NTUS A NTUS A
22601M002 NTUS A
10317M003 NYA1 A NYA1 A
10317M001 NYAL A NYAL A NYAL A
40499S020 RCM6 A RCM6 A RCM6 A
RICH A RICH A
50103M108 TID2 A TIDB A TIDB A
TIDB A TID2 A
10302M006 TRO1 A TRO1 A
10302M003 TROM A TROM A TROM A
12353M001 YAKA A
YAKZ A
50107M004 YAR1 A YAR1 A YAR1 A
YAR2 A
MISSING IERS DOMES NOS AT IGS:
-----------------------------
BAKO A BISH A ELAT A INEG A KATZ A RIOG A TELA A URUM A
MISSING IERS DOMES NOS AT MIT:
-----------------------------
SFER A HOFN A SCH2 A NRC1 A SOL1 A USNA A AOML A CHUR A DUBO A FLIN A
INEG A PRDS A WILL A WSLR A NANO A UCLU A HOLB A NOUM A YAKZ A YAKA A
SUWN A BAKO A SELE A NSSP A ZECK A KATZ A ELAT A TELA A NICO A SOFI A
NOTO A OBER A CAGL A WSRT A TOUL A EBRE A
IERS DOMES NO COD NRC ESA GFZ IGS NOA SIO
============= ====== ====== ====== ====== ====== ====== ======
30302M004 HRAO A HRAO A HRAO A
30302M007 HART A HART B HART B HARK A HARK A HART B
30302M002 HART B
50107M004 YAR1 A YAR1 A YAR1 A YAR2 A YAR1 A YAR1 A YAR1 A
31303M002 MASP A MASP B MASP B MAS1 A MAS1 A MASP B
31303M001 MASP A
22306M002 IISC A IISC A IISC B IISC A IISC A IISC B
22306M001 IISC A
12309M002 MDVO A
12309M001 MDVO A
10302M006 TROM A TRO1 A
10302M003 TROM A TROM A TROM A
40405S031 GOLD A GOLD A GOLD A GOL2 A GOL2 A GOLD B GOLD A
40451S003 USNO A USNO A USNO A USNO A
40451M123 GODE A GODE A GODE A
40499S020 RICH A RCM6 A RCM6 A RCM6 A
42202M005 AREQ A AREQ B AREQ B AREQ A AREQ B AREQ A
50103M108 TIDB A TIDB A TIDB A TID2 A TID2 A TIDB A TIDB A
42005M001 GALA A GALA A GALA A GALA B
10317M003 NYAL A NYA1 A NYA1 A
10317M001 NYAL A NYAL A NYAL A
22601M001 NTUS A NTUS A NTUS A NTUS A
22601M002 NTUS A
13407S012 MADR A MAD2 A MADR A MADR A
MISSING IERS DOMES NOS AT GFZ:
-----------------------------
BISH A URUM A RIOG 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 INEG A PRDS A WILL A WSLR A
NANO A UCLU A HOLB A WHIT A MKEA A KWJ1 A NOUM A PETR A MAG0 A YAKA A
YAKZ A SUWN A WUHN A BAKO A NTUS A COCO A KSTU A SELE A DGAR A BAHR A
NSSP A ZECK A KATZ A ELAT A TELA A NICO A HARK A HRAO A SOFI A NOTO A
MEDI A OBER A CAGL A WSRT A TOUL A EBRE 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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