[IGSREPORT-4844] Wk 0948 G-SINEX Comparisons
AC
AC
Thu Apr 30 12:49:58 PDT 1998
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IGS Electronic Report Thu Apr 30 12:49:58 PDT 1998 Message Number 4844
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0948 G-SINEX Comparisons
Comparison of GNAAC Combined SINEX Solutions - Week 0948
(MAR 8, 1998 - MAR 14, 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:
mit0948g.snx at cddis.gsfc.nasa.gov
jpl0948g.snx at cddis.gsfc.nasa.gov
ncl0948g.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))
jpl0948g.snx: BISH .075 .002 -.001 .069 -.001 .002 .046 .000 .000
mit0948g.snx: BISH .078 .000 -.003 .074 -.003 -.001 .046 .000 .000
- Unresolvable (no log file)
jpl0948g.snx: ELAT .069 .000 .000 .068 .000 .000 -.011 .000 .000
mit0948g.snx: ELAT .078 .000 -.003 .074 -.003 -.001 -.011 .000 .000
- Unresolvable (no log file)
jpl0948g.snx: KATZ .069 .000 .000 .068 .000 .000 -.012 .000 .000
mit0948g.snx: KATZ .078 .000 -.003 .074 -.003 -.001 -.012 .000 .000
- Unresolvable (no log file)
jpl0948g.snx: MALI .078 .000 .000 .096 .000 .000 .222 .000 .000
mit0948g.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.
jpl0948g.snx: NOUM .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
mit0948g.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.
jpl0948g.snx: TELA .069 .000 .000 .068 .000 .000 .000 .000 .000
mit0948g.snx: TELA .078 .000 -.003 .074 -.003 -.001 .000 .000 .000
- Unresolvable (no log file)
jpl0948g.snx: YAR1 .078 .000 .000 .096 .000 .000 .073 .000 .000
mit0948g.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.
jpl0948g.snx: TROM .078 .000 .000 .096 .000 .000 2.473 .000 .000
mit0948g.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.
jpl0948g.snx: WSRT .110 .000 .000 .128 .000 .000 .380 .000 .000
mit0948g.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.
jpl0948g.snx: CAGL .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: HARK .110 .000 .000 .128 .000 .000 9.754 .000 .000
jpl0948g.snx: HOFN .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: HRAO .110 .000 .000 .128 .000 .000 9.754 .000 .000
jpl0948g.snx: KOUR .078 .000 .000 .096 .000 .000 .132 .000 .000
jpl0948g.snx: LPGS .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: MOIN .110 .000 .000 .128 .000 .000 .994 .000 .000
jpl0948g.snx: NICO .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: SELE .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: SFER .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: SOFI .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: WUHN .110 .000 .000 .128 .000 .000 2.320 .000 .000
jpl0948g.snx: ZECK .110 .000 .000 .128 .000 .000 .000 .000 .000
jpl0948g.snx: ZIMM .069 .000 .000 .068 .000 .000 .000 .000 .000
FILE ncl0948g.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 POL2 MIT-JPL Lat PERT MIT-JPL Lon KIRU MIT-JPL
Lon DAV1 MIT-NCL Lon KWJ1 MIT-NCL Lon KIRU MIT-NCL
Hgt LHAS JPL-NCL Hgt COCO MIT-JPL Hgt EISL MIT-JPL
Hgt MCM4 MIT-JPL Hgt LHAS MIT-JPL Hgt WES2 MIT-JPL
Hgt MCM4 MIT-NCL Hgt COCO MIT-NCL
59 GLOBAL STATIONS:
ALBH ALGO ANKR AREQ ASC1 AUCK BAHR BOGT BRMU BRUS
CAS1 CHAT CRO1 DGAR DRAO FAIR FLIN FORT GODE GOLD
GRAZ GUAM HOB2 IRKT KELY KERG KIT3 KOKB KOSG MAC1
MADR MATE MDO1 METS MKEA NLIB NRC1 OHIG ONSA PIE1
POTS RCM6 REYK SANT SHAO STJO TAEJ TAHI THU1 TIDB
TROM TSKB USNO USUD WHIT WTZR YAR1 YELL ZWEN
39 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
THU1 TIDB TROM TSKB WES2 WTZR YAR1 YELL ZWEN
AVERAGE COORDINATE RMS USING ITRF96:
59 GLOBAL STATIONS 39 FIDUCIAL STATIONS
MIT-JPL MIT-NCL JPL-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
(mm) (mm) (mm) (mm) (mm) (mm)
------- ------- ------- ---------- ---------- ----------
Lat 1.2 1.2 0.4 4.1 4.4 4.4
Lon 1.6 1.5 0.5 4.7 5.2 5.2
Hgt 2.1 2.0 1.2 8.3 8.8 8.6
3D 2.9 2.7 1.4 10.4 11.1 11.0
VARIANCE FACTORS WITH ITRF96 (CHI-SQUARE / (DEGREES OF FREEDOM)):
59 GLOBAL STATIONS 39 FIDUCIAL STATIONS
JPL-NCL MIT-JPL MIT-NCL MIT-ITRF96 JPL-ITRF96 NCL-ITRF96
------- ------- ------- ---------- ---------- ----------
0.045 0.317 0.286 2.260 2.991 2.005
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 -8.7 3.0 25.1 3.0 -16.1 5.1 -0.9 0.1
MIT -7.5 2.3 4.9 2.3 -14.1 3.4 -0.8 0.1
NCL -8.1 3.1 23.9 3.3 -7.9 5.4 -0.7 0.2
REMARKS:
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0948g.snx :
Stations: BRAZ HART MASP VILL
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0948g.snx :
Stations: BRAZ VILL
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0948g.snx :
Stations: BRAZ HART MASP 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
IIS1 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
MDV1 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 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 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 CHUR A DUBO A FLIN 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 XIAN A COCO 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
============= ====== ====== ====== ====== ====== ====== ======
50103M108 TIDB A TIDB A TIDB A TID2 A TID2 A TIDB A TIDB 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
42202M005 AREQ A AREQ B AREQ B AREQ A AREQ B AREQ A
12309M002 MDVO A MDVO B MDVO A
12309M001 MDVO A
40451S003 USNO A USNO A USNO A
40451M123 GODE A GODE A GODE A GODE 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
50107M004 YAR1 A YAR1 A YAR1 A YAR2 A YAR1 A YAR1 A YAR1 A
13407S012 MADR A MAD2 A MADR A MADR A
22306M002 IISC B IISC A
MISSING IERS DOMES NOS AT GFZ:
-----------------------------
BISH A RIOG A
MISSING IERS DOMES NOS AT JPL:
-----------------------------
ASC1 A BAHR A COCO A DGAR A FLIN A KWJ1 A MKEA A NOTO A NICO A CAGL A
RCM6 A USNO 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 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 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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