[IGSREPORT-5008] Wk 0950 G-SINEX Comparisons
AC
AC
Tue Jun 16 09:37:16 PDT 1998
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IGS Electronic Report Tue Jun 16 9:37:16 PDT 1998 Message Number 5008
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0950 G-SINEX Comparisons
Comparison of GNAAC Combined SINEX Solutions - Week 0950
(MAR 22, 1998 - MAR 28, 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:
mit0950g.snx at cddis.gsfc.nasa.gov
jpl0950g.snx at cddis.gsfc.nasa.gov
ncl0950g.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))
jpl0950g.snx: BISH .075 .002 -.001 .069 -.001 .002 .046 .000 .000
mit0950g.snx: BISH .078 .000 -.003 .074 -.003 -.001 .046 .000 .000
- Unresolvable (no log file)
jpl0950g.snx: ELAT .069 .000 .000 .068 .000 .000 -.011 .000 .000
mit0950g.snx: ELAT .078 .000 -.003 .074 -.003 -.001 -.011 .000 .000
- Unresolvable (no log file)
jpl0950g.snx: KATZ .069 .000 .000 .068 .000 .000 -.012 .000 .000
mit0950g.snx: KATZ .078 .000 -.003 .074 -.003 -.001 -.012 .000 .000
- Unresolvable (no log file)
jpl0950g.snx: NOUM .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
mit0950g.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.
jpl0950g.snx: TELA .069 .000 .000 .068 .000 .000 .000 .000 .000
mit0950g.snx: TELA .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
- Unresolvable (no log file)
jpl0950g.snx: TROM .078 .000 .000 .096 .000 .000 2.473 .000 .000
mit0950g.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.
jpl0950g.snx: CAGL .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: EBRE .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
jpl0950g.snx: HARK .110 .000 .000 .128 .000 .000 9.754 .000 .000
jpl0950g.snx: HOFN .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: HRAO .110 .000 .000 .128 .000 .000 9.754 .000 .000
jpl0950g.snx: KOUR .078 .000 .000 .096 .000 .000 .132 .000 .000
jpl0950g.snx: LPGS .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: MALI .078 .000 .000 .096 .000 .000 .222 .000 .000
jpl0950g.snx: MEDI .110 .000 .000 .128 .000 .000 .146 .000 .000
jpl0950g.snx: MOIN .110 .000 .000 .128 .000 .000 .994 .000 .000
jpl0950g.snx: NICO .110 .000 .000 .128 .000 .000 .000 .000 .000
mit0950g.snx: NYAL .078 .000 .000 .096 .000 .000 5.216 .004 .001
jpl0950g.snx: SELE .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: SFER .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: SOFI .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: UPAD .078 .000 -.003 .074 -.003 -.001 1.962 .000 .000
jpl0950g.snx: WSRT .110 .000 .000 .128 .000 .000 .380 .000 .000
jpl0950g.snx: WUHN .110 .000 .000 .128 .000 .000 2.320 .000 .000
jpl0950g.snx: YAR1 .078 .000 .000 .096 .000 .000 .073 .000 .000
jpl0950g.snx: ZECK .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0950g.snx: ZIMM .069 .000 .000 .068 .000 .000 .000 .000 .000
FILE ncl0950g.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 OHIG MIT-NCL Lat SANT MIT-NCL
Lon FORT JPL-NCL Lon EISL MIT-JPL Lon SHAO MIT-JPL
Lon HOB2 MIT-JPL Hgt TAHI MIT-NCL Hgt SANT MIT-NCL
Hgt AREQ MIT-NCL Hgt NTUS MIT-NCL Hgt MCM4 MIT-NCL
52 GLOBAL STATIONS:
ALGO ASC1 AUCK BAHR BOGT BRMU CAS1 CHAT COCO CRO1
DAV1 DGAR DRAO FAIR GODE GOLD GUAM IISC IRKT KELY
KIT3 KOKB KOSG KSTU KWJ1 LHAS MAC1 MADR MATE MDO1
METS MKEA NLIB NRC1 ONSA PERT PIE1 POL2 POTS RCM6
REYK STJO TIDB TROM TSKB USNO USUD WES2 WTZR YAR1
YELL ZWEN
37 FIDUCIAL STATIONS:
ALGO BRMU DAV1 DRAO FAIR FORT GODE GOLD 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:
52 GLOBAL STATIONS 37 FIDUCIAL STATIONS
MIT-JPL MIT-NCL JPL-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
(mm) (mm) (mm) (mm) (mm) (mm)
------- ------- ------- ---------- ---------- ----------
Lat 1.7 2.1 1.6 4.1 4.7 5.0
Lon 2.4 2.1 2.1 5.9 6.1 6.7
Hgt 3.1 4.1 3.5 10.6 10.0 10.8
3D 4.3 5.0 4.4 12.8 12.6 13.7
VARIANCE FACTORS WITH ITRF96 (CHI-SQUARE / (DEGREES OF FREEDOM)):
63 GLOBAL STATIONS 37 FIDUCIAL STATIONS
JPL-NCL MIT-JPL MIT-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
------- ------- ------- ---------- ---------- ----------
0.211 0.775 0.585 3.383 4.432 2.499
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 -7.3 3.0 10.1 3.1 -29.4 5.0 -1.0 0.1
MIT -8.7 2.0 -2.7 2.0 -34.2 3.0 -0.8 0.2
NCL -9.4 4.2 18.8 4.7 -5.2 7.4 -0.6 0.2
REMARKS:
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0950g.snx :
Stations: BRAZ HART MASP VILL
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0950g.snx :
Stations: BRAZ VILL
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0950g.snx :
Stations: BRAZ GRAZ 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 GOL2 A GOLD A
GOL1 A GOLD A
GOLD A
30302M002 HART A
HARK A
HAR1 A
HRAO A
30302M007 HARK A HARK A
30302M004 HRAO A
22306M001 IISC A
IIS1 A
22306M002 IISC A IISC A
13407S012 MADR A MAD2 A MADR A
MAD2 A MADR A
31303M002 MAS1 A
31303M001 MASP A MAS1 A
12309M002 MDVO A
12309M001 MDVO A
22601M001 NTUS A NTUS A
22601M002 NTUS A
40499S018 RICH A
40499S020 RCM6 A RCM6 A
RICH A
50103M108 TIDB A TIDB A TIDB A
TID2 A TID2 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 EBRE 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 SFER A ZECK A HOFN A CAGL A PRDS A
RCM6 A RIOG A SELE A SOFI A SOL1 A SCH2 A TELA 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 HOFN A SCH2 A RIOG A SOL1 A USNA A USNO A AOML A MOIN A CHUR A
DUBO A FLIN A PRDS A CASA A WILL A WSLR A NANO A UCLU A HOLB A MKEA A
NOUM A PETR A MAG0 A YAKZ A YAKA A XIAN A SELE A BISH 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
EBRE A
IERS DOMES NO COD NRC ESA GFZ JPL NOA SIO
============= ====== ====== ====== ====== ====== ====== ======
22306M002 IISC A IISC B IISC A IISC A
22306M001 IISC A IISC A
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 MASP B
31303M001 MASP A
12309M002 MDVO A MDVO A
12309M001 MDVO A
40405S031 GOLD A GOLD A GOLD A GOL2 A GOL2 A GOLD B GOLD A
40451S003 USNO A USNO A USNO A
40451M123 GODE A 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 A AREQ B AREQ A
50103M108 TIDB A TIDB A TIDB A TID2 A TID2 A TIDB A TIDB A
22601M001 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 RIOG A
MISSING IERS DOMES NOS AT JPL:
-----------------------------
ASC1 A BAHR A CASA A COCO A DGAR A KWJ1 A MAG0 A MEDI A MKEA A PETR A
LPGS A RCM6 A USNO A XIAN A YAKA A YAKZ A
MISSING IERS DOMES NOS AT NOA:
-----------------------------
MKEA 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 MOIN 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
YAKA A YAKZ A WUHN A XIAN A NTUS 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 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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