[IGSREPORT-5237] Wk 0964 G-SINEX Comparisons
AC
AC
Fri Aug 21 14:02:11 PDT 1998
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IGS Electronic Report Fri Aug 21 14:02:11 PDT 1998 Message Number 5237
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0964 G-SINEX Comparisons
Comparison of GNAAC Combined SINEX Solutions - Week 0964
(JUN 28, 1998 - JUL 4, 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:
jpl0964g.snx at cddis.gsfc.nasa.gov
mit0964g.snx at cddis.gsfc.nasa.gov
ncl0964g.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))
jpl0964g.snx: INEG .000 .000 .000 .000 .000 .000 .130 .000 .000
mit0964g.snx: INEG .080 .000 .001 .079 -.001 .001 .130 .000 .000
- Unresolvable. No log file.
jpl0964g.snx: MDVO .000 .000 .000 .000 .000 .000 .146 .000 .000
mit0964g.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.)
jpl0964g.snx: HFLK .078 .000 .000 .096 .000 .000 .000 .000 .000
ncl0964g.snx: HRAO .110 .000 .000 .128 .000 .000 .000 .000 .000
mit0964g.snx: LAMA .081 .000 -.001 .078 -.002 .004 .061 .000 .000
jpl0964g.snx: MONP .000 .000 .000 .000 .000 .000 .119 .000 .000
jpl0964g.snx: SUTH .000 .000 .000 .000 .000 .000 .119 .000 .000
mit0964g.snx: TROM .078 .000 .000 .096 .000 .000 2.475 .000 .000
FILE ncl0964g.snx MISSING THE SITE/GPS_PHASE_CENTER BLOCK.
DEFAULTING TO KNOWN L1/L2 OFFSETS AND ECCENTRICITIES.
ANTENNA PHASE CENTRE CONFLICTS IN FILE jpl0964g.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 mit0964g.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 JPL-MIT Lat DAV1 JPL-MIT Lat KERG JPL-MIT
Lat KERG MIT-NCL Lat COCO MIT-NCL Lat YAR1 MIT-NCL
Lat DAV1 MIT-NCL Lat PERT MIT-NCL Lon EISL JPL-MIT
Lon COCO JPL-MIT Lon EISL JPL-NCL Lon WUHN JPL-NCL
Lon AREQ MIT-NCL Lon COCO MIT-NCL Lon WUHN MIT-NCL
Lon EISL MIT-NCL Hgt COCO JPL-MIT Hgt COCO MIT-NCL
Hgt BARB MIT-NCL Hgt WUHN MIT-NCL
71 GLOBAL STATIONS:
ALBH ALGO ANKR ASC1 AUCK BAHR BOGT BRMU BRUS CHAT
CRO1 DGAR DRAO FAIR FORT GODE GOL2 GOLD GRAZ GUAM
HARK HOB2 IRKT KELY KIRU KIT3 KOKB KOSG KOUR KSTU
KWJ1 LHAS LPGS MAC1 MALI MATE MCM4 MDO1 MEDI METS
MKEA NLIB NRC1 NTUS NYA1 OHIG ONSA PIE1 POL2 POTS
RCM6 REYK SANT STJO TAEJ THTI THU1 TIDB TROM TSKB
USNO USUD VILL WES2 WHIT WSRT WTZR YAKZ YELL ZECK
ZWEN
40 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
THU1 TIDB TROM TSKB VILL WES2 WTZR YAR1 YELL ZWEN
AVERAGE COORDINATE RMS USING ITRF96:
71 GLOBAL STATIONS 40 FIDUCIAL STATIONS
JPL-MIT JPL-NCL MIT-NCL JPL-ITRF96 MIT-ITRF96 NCL-ITRF96
(mm) (mm) (mm) (mm) (mm) (mm)
------- ------- ------- ---------- ---------- ----------
Lat 1.2 0.4 1.4 3.9 3.5 3.9
Lon 0.8 0.6 1.1 5.8 5.5 5.6
Hgt 2.7 1.3 3.1 11.3 12.6 11.0
3D 3.1 1.5 3.6 13.3 14.1 12.9
VARIANCE FACTORS WITH ITRF96 (CHI-SQUARE / (DEGREES OF FREEDOM)):
75 GLOBAL STATIONS 40 FIDUCIAL STATIONS
JPL-MIT JPL-NCL MIT-NCL JPL-ITRF96 MIT-ITRF96 NCL-ITRF96
------- ------- ------- ---------- ---------- ----------
0.344 0.052 0.346 3.991 4.046 2.738
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 0.8 1.8 13.6 2.1 -36.9 4.5 -0.3 0.1
MIT 0.7 2.1 3.4 2.1 -36.8 3.5 -0.7 0.1
NCL 2.5 2.9 15.7 3.0 -30.5 4.6 -0.2 0.2
REMARKS:
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0964g.snx :
Stations: BRAZ
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0964g.snx :
Stations: BRAZ MASP
THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0964g.snx :
Stations: BRAZ HART MADR MASP SHAO
----------------------------------
CORRECTION:
WEEKS 950-955, 957-963 MISTAKENLY REFER TO IGS INSTEAD OF JPL IN THE
REMARKS SECTION OF THE REPORT; e.g., THE LINES
IERS DOMES NO IGS MIT NCL
============= ====== ====== ======
SHOULD READ AS FOLLOWS:
IERS DOMES NO JPL MIT NCL
============= ====== ====== ======
END OF CORRECTION
----------------------------------
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 GOL2 A GOL2 A
GOLD A GOLD 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
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
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 YAKZ A
YAKZ A YAKA A
50107M004 YAR1 A YAR1 A YAR1 A
YAR2 A
MISSING IERS DOMES NOS AT JPL:
-----------------------------
BAKO A BISH A ELAT A INEG A KATZ 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
IERS DOMES NO COD NRC ESA GFZ JPL NOA SIO
============= ====== ====== ====== ====== ====== ====== ======
30302M004 HRAO A HRAO A HRAO A HRAO A
30302M007 HART A HART B HART B HARK A HARK A HART B HARK A
30302M002 HART B
31303M002 MASP A MASP B MASP B MAS1 A MAS1 A MASP B
40499S020 RICH A RCM6 A RCM6 A RCM6 A RCM6 A
42005M001 GALA A GALA A GALA A GALA B
10317M003 NYAL A NYA1 A NYA1 A
10317M001 NYAL A NYAL A NYAL A
12353M001 YAKZ A YAKZ A YAKA A
YAKZ A
40405S031 GOLD A GOLD A GOLD A GOL2 A GOL2 A GOLD B GOL2 A
GOLD A
40451M123 GODE A GODE A GODE A GODE A
40451S003 USNO A USNO A USNO A USNO A USNO 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
50107M004 YAR1 A YAR1 A YAR1 A YAR2 A YAR1 A YAR1 A YAR1 A
10302M006 TROM A TRO1 A
10302M003 TROM A TROM A TROM A
22306M002 IISC A IISC B IISC A IISC B IISC A
13407S012 MADR A MAD2 A MADR A MAD2 A
22601M001 NTUS A NTUS A NTUS A NTUS A
22601M002 NTUS A
MISSING IERS DOMES NOS AT GFZ:
-----------------------------
BISH A URUM A RIOG A
MISSING IERS DOMES NOS AT SIO:
-----------------------------
MASP A INEG A BAKO A KATZ A ELAT A TELA 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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