Author: H. Habrich ******************************************************************************* EUREF REPORT FOR GPS WEEK 1143 (DAYS 336-342, DATES 02-12-01 - 08-12-01) ******************************************************************************* Report of the combination of the European weekly GPS solutions International Association of Geodesy Commission X - Global and Regional Geodetic Networks Subcommission for Europe (EUREF) Contributing Solutions: ----------------------- Group Description Contribution ASI - Nuova Telespazio S.p.A., Space Geodesy Center, Italy SINEX BEK - International Commission for Global Geodesy of SINEX the Bavarian Academy of Sciences, Germany BKG - Bundesamt fuer Kartographie und Geodaesie, Germany SINEX COE - European solution created at CODE SINEX (Center for Orbit Determination in Europe) DEO - Delft Institute for Earth-Orientated Space Research, SINEX Delft University of Technology, Netherlands GOP - Geodetic Observatory Pecny, Czech Republic SINEX IGE - Instituto Geografico Nacional - Spain SINEX IGN - Institut Geographique National, France SINEX LPT - Bundesamt fuer Landestopographie (L+T), Switzerland SINEX NKG - Nordic Geodetic Commision SINEX OLG - Observatory Lustbuehel Graz, Austria SINEX ROB - Royal Observatory of Belgium SINEX SGO - FOMI Satellite Geodetic Observatory, Hungary SINEX UPA - Universita di Padova, Italy SINEX WUT - Warsaw University of Technology, Poland SINEX SINEX: Software independent exchange format Version 0.05 or 1.00 Submitted by: Bundesamt fuer Kartographie und Geodaesie (BKG) Frankfurt am Main, Germany Contact : Heinz Habrich (habrich@ifag.de) Products are available through A) http://igs.ifag.de/root_ftp/EUREF/products/ or ftp://igs.ifag.de/EUREF/products/ B) ftp://ftpserver.oma.be -or- ftp 193.190.231.100 after login: cd pub/astro/euref/product/combin C) ftp://cddisa.gsfc.nasa.gov/gps/products/ Processing Strategy: -------------------- The weekly EUREF solution (EUR) is created from a combination of the contributing normal equations, after removing the local analysis center (LAC) specific constraints. Covariance rescaling factors are derived from the sampling rate used by each center. In fact all solutions contribute to the combined solution with the same weight. The rescaling factors of all centers are chosen, such that they give the resulting EUREF solution realistic formal errors. Contents of Table 1: To align the EUREF weekly solutions with the terrestrial reference frame the coordinates of a selected set of 'reference stations' are hold fixed. Table 1 shows the selected reference frames and stations. Contents of Table 2: List of resulting files and manual edited remarks. Contents of Table 3: Each station is processed by at least 3 LACs. This redundancy allows for outlier detection in the combination. The table shows a list of stations, which have been excluded in the combination for this week. Contents of Table 4: In order to reduce biases in the combination of the station specific troposphere parameters, which are estimated by the LACs, the solutions of all LACs have to be aligned to a common terrestrial reference frame. In fact all 'coordinate SINEX' and 'troposphere SINEX' files submitted by the LACs are aligned to a common reference frame, which yields a consistency of the combined coordinates and troposphere parameters. This table shows the residuals between the coordinates of the EUREF combined SINEX file and the SINEX files of each LAC (majority voting applied). It indicates the consistency of the reference frame alignmet of the LAC solutions. Contents of Table 5: The comparisons between each individual solution and the combined solution is done using a 7-parameter Helmert transformation. The Helmert parameters are determined using all sites of the individual solutions. In the first part of the Table unweighted rms values (for the coordinate components in the local system North-East-Up), derived from the Helmert residuals, are shown for each site. In the second part of the table an (unweighted) rms is computed for each Analysis Center. These values are derived from the Helmert residuals of all sites of a particular Analysis Center. ------------------------------------------------------------------------------- TABLE 1: REFERENCE FRAME ALIGNMENT ------------------------------------------------------------------------------- GPS WEEKS REFERENCE FRAME REFERENCE STATIONS ------------------------------------------------------------------------------- 0860-0946 ITRF94 BRUS GRAZ KOSG MATE METS ONSA WTZR ZIMM 0947-0981 ITRF96 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR ZIMM ZWEN VILL 0982-1020 ITRF96 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR ZIMM ZWEN VILL GRAS 1021-1056 ITRF97 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR ZWEN VILL GRAS NYA1 TRO1 THU1 1057-1142 ITRF97 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR VILL GRAS NYA1 TRO1 THU1 1143- ITRF00 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR VILL GRAS NYA1 TRO1 THU1 ------------------------------------------------------------------------------- TABLE 2: AVAILABLE FILES AND REMARKS: ------------------------------------------------------------------------------- EUR11437.SUM THIS TEXT FILE EUR11437.SNX COMBINED EUROPEAN SOLUTION FOR GPS WEEK 1143 ------------------------------------------------------------------------------- REMARKS: - ------------------------------------------------------------------------------- TABLE 3: EXCLUDED STATIONS ------------------------------------------------------------------------------- --> EXCLUDE STATION: 234 GSR1 14501M001B TO -1 GSR1 SCRATCHBEK --> EXCLUDE STATION: 186 LAMP 12706M002 TO -1 LAMP SCRATCHBKG --> EXCLUDE STATION: 104 HOFN 10204M002 TO -1 HOFN SCRATCHCOE --> EXCLUDE STATION: 153 VILL 13406M001 TO -1 VILL SCRATCH --> EXCLUDE STATION: 227 MALL 13444M001 TO -1 MALL SCRATCHDEO --> EXCLUDE STATION: 191 MANS 10091M001 TO -1 MANS SCRATCHGOP --> EXCLUDE STATION: 245 CEUT 13449M001 TO -1 CEUT SCRATCH --> EXCLUDE STATION: 191 MANS 10091M001 TO -1 MANS SCRATCHIGN --> EXCLUDE STATION: 247 OROS 11207M001 TO -1 OROS SCRATCH --> EXCLUDE STATION: 187 LLIV 13436M001 TO -1 LLIV SCRATCHWUT --> EXCLUDE STATION: 133 MDVO 12309M002 TO -1 MDVO SCRATCHWUT --> EXCLUDE STATION: 139 SVTL 12350M001 TO -1 SVTL SCRATCHWUT --> EXCLUDE STATION: 201 TRAB 20808M001 TO -1 TRAB SCRATCHWUT --> EXCLUDE STATION: 219 VARS 10322M002 TO -1 VARS SCRATCHWUT --> EXCLUDE STATION: 131 WROC 12217M001 TO -1 WROC SCRATCHWUT ------------------------------------------------------------------------------- TABLE 4: COMPARISON OF STATION COORDINATES IN SINEX FILES (IN MM): ------------------------------------------------------------------------------- ASI BEK BKG COE DEO GOP IGE IGN LPT ------------------------------------------------------------------------------- STAX MEAN -1.2 20.5 -2.1 -1.7 -229.4 1.6 11.9 -227.1 12.6 STAY MEAN -3.7 -25.2 -0.3 0.6 -41.8 2.3 -25.9 -60.5 2.2 STAZ MEAN 1.9 -19.2 -1.5 2.4 -143.2 3.6 -12.3 -210.2 -18.0 ------------------------------------------------------------------------------- STAN MEAN 2.8 -24.6 0.5 2.2 32.2 0.4 -18.1 -1.7 -21.3 STAE MEAN -3.1 -27.7 -0.2 0.8 -55.8 1.5 -25.0 -59.6 0.6 STAU MEAN -0.3 -1.0 -2.3 2.0 -262.2 4.2 2.9 -305.1 -5.6 NKG OLG ROB SGO UPA WUT ---------------------------------------------------------- STAX MEAN -0.1 -7.4 -0.3 -10.7 34.4 -8.2 STAY MEAN -1.5 14.0 -0.1 -7.1 -37.0 2.1 STAZ MEAN 1.0 -3.7 3.9 0.4 -26.2 -7.6 ---------------------------------------------------------- STAN MEAN 1.5 -0.4 2.8 8.6 -36.9 1.9 STAE MEAN -1.6 15.6 -0.1 -2.8 -42.6 3.5 STAU MEAN 0.3 -4.5 2.8 -8.3 0.6 -10.5 ------------------------------------------------------------------------------- TABLE 5: COMPARISON OF STATION COORDINATES AFTER HELMERT TRANSFORMATION: ------------------------------------------------------------------------------- EUREF COMBINATION WEEK 1143, FREE NETWORK CONDITION ------------------------------------------------------------------------------- PROCESSED FILES : 15 TOTAL NUMBER OF STATIONS: 116 ------------------------------------------------------------------------------- 000000000111111 RESIDUAL RMS IN MM STATION #FILES 123456789012345 N E U ------------------------------------------------------------------------------- ALAC 13433M001 5 MM M MM 1.6 1.6 1.2 AQUI 12757M001 4 MM MM 0.6 2.0 4.8 BELL 13431M001 4 MM M M 0.6 2.8 6.2 BZRG 12751M001B 3 MM M 0.9 5.5 4.4 CAGL 12725M003 3 MM M 0.4 0.9 3.2 CAME 12754M001 3 M M M 0.7 6.8 5.3 CANT 13438M001 5 M M MM M 1.4 4.5 5.0 DUBR 11901M001 4 M M M M 0.8 1.9 4.1 EBRE 13410M001 5 MM MM M 0.5 1.7 2.3 GENO 12712M002 3 MM M 1.1 1.0 3.9 LAMP 12706M002 2 M M 1.9 4.1 9.7 MATE 12734M008 4 NNN N 1.3 0.7 7.2 MEDI 12711M003 3 MM M 0.7 1.9 4.1 NOT1 12717M004 3 MM M 1.2 2.0 3.8 ORID 15601M001 3 M M M 1.0 1.4 1.6 SFER 13402M004 5 MM M MM 1.2 1.3 3.6 TORI 12724M002 3 MM M 0.4 2.2 3.4 UNPG 12752M001 3 MM M 0.5 1.5 3.6 VENE 12741M001B 4 MM M M 0.4 0.7 2.9 WTZR 14201M010 4 N N N N 0.4 2.5 2.6 ELBA 12721M002 3 MM M 1.0 0.6 3.3 AJAC 10077M005 3 M M M 0.7 0.7 4.0 ANKR 20805M002 4 MMM M 1.1 1.0 1.7 NICO 14302M001 3 MM M 0.6 0.9 4.4 RAMO 20703S001B 3 M M M 1.8 1.7 5.8 TUBI 20806M001 4 MM M M 0.6 0.8 1.7 MARS 10073M008 4 M M M M 0.4 0.5 3.9 CASC 13909S001 5 M MM MM 1.4 1.4 4.6 GRAS 10002M006 4 N NN N 0.2 0.8 2.3 TLSE 10003M009 4 M M M M 1.2 0.5 2.7 CREU 13432M001 5 M M MM M 0.9 4.8 2.9 MAS1 31303M002 4 M MM M 1.9 2.9 3.6 LLIV 13436M001 3 M MM 1.3 0.5 1.5 PADO 12750S001 3 M M M 0.3 0.3 4.5 SOFI 11101M002 4 MM M M 0.3 0.5 1.2 RABT 35001M002 4 MM M M 2.5 4.8 1.4 ALME 13437M001 5 MMM M M 1.8 1.3 4.5 MALL 13444M001 4 M MMM 0.8 0.6 2.9 GLSV 12356M001 3 MM M 0.8 0.4 3.0 TRAB 20808M001 2 M M 0.5 0.7 6.4 ZECK 12351M001 3 MM M 1.4 0.4 5.1 BORK 14268M001 3 M M M 0.4 0.4 0.5 PTBB 14234M001 4 MM MM 0.2 0.6 3.7 BUCU 11401M001 4 M M M M 1.6 0.4 1.4 OSJE 11902M001 4 M M M M 0.3 0.6 2.3 HERS 13212M007 3 M M M 0.4 0.4 1.1 HELG 14264M001 3 MM M 0.4 0.5 1.3 HOFN 10204M002 3 M M M 2.4 4.4 2.1 HOBU 14202M003 1 M - - - NPLD 13234M003 3 MM M 0.3 0.7 2.2 STAS 10330M001 3 M MM 0.8 0.5 1.5 BRUS 13101M004 4 M M MM 0.4 0.6 4.9 DRES 14108M001 3 M M M 0.2 0.5 2.5 EUSK 14258M003B 3 M M M 0.2 0.1 1.5 GRAZ 11001M002 4 N N N N 0.4 0.4 1.6 KARL 14216M001B 3 M M M 0.3 1.7 1.3 KLOP 14214M002B 3 M M M 0.1 0.3 1.2 OBE2 14208M003 4 M M MM 0.4 0.2 2.2 PFAN 11005S002 3 M M M 0.3 0.2 2.4 SBGZ 11031S001 3 M M M 0.1 0.2 1.9 METS 10503S011 4 M M M M 1.0 0.6 2.2 ONSA 10402M004 4 N N N N 0.7 0.7 1.6 POTS 14106M003 3 N N N 0.3 0.4 1.8 WROC 12217M001 2 M M 0.1 0.2 2.6 REYK 10202M001 3 NN N 1.4 2.9 1.8 KOSG 13504M003 3 N N N 0.2 0.1 0.9 VIL0 10424M001 3 MM M 0.5 0.5 1.4 ZWEN 12330M001 3 MM M 0.8 0.8 3.2 TRDS 10331M001 3 M M M 0.2 0.7 2.3 YEBE 13420M001 5 M M MM M 0.6 1.9 1.9 BRST 10004M004 3 M M M 0.4 1.3 2.4 BOR1 12205M002 3 N N N 0.4 0.8 1.7 TERS 13534M001 3 M M M 0.3 0.3 1.1 BOGO 12207M002 3 M M M 0.3 0.5 1.1 MAR6 10405M002 3 M M M 0.1 0.1 1.5 DELF 13502M004 3 M M M 0.1 0.2 0.9 DOUR 13113M001 3 M M M 0.2 0.3 1.1 LAMA 12209M001B 3 M M M 0.4 0.4 1.6 PENC 11206M006 4 M M M M 0.5 1.1 1.1 TRO1 10302M006 3 N N N 1.4 0.6 2.1 JOEN 10512M001 3 M M M 1.2 1.2 3.8 MDVO 12309M002 2 M M 1.9 0.9 3.2 KIRU 10403M002B 1 M - - - KIR0 10422M001 3 M M M 1.1 1.1 1.8 PDEL 31906M004 3 MM M 2.4 5.8 8.6 NYA1 10317M003 3 N N N 2.1 0.6 4.4 SODA 10513M001 3 M MM 0.7 0.9 2.3 ZIMM 14001M004 3 M M M 0.2 0.5 2.2 VAAS 10511M001 3 M MM 0.1 0.8 3.9 CACE 13447M001 3 M MM 1.0 4.1 4.6 GAIA 13902M001 3 M MM 2.0 0.8 5.3 LAGO 13903M001 3 M M M 1.1 10.1 3.4 CHIZ 10020M001 4 MM M M 1.2 1.3 1.2 VALE 13439M001 3 MMM 0.7 0.7 5.6 VIS0 10423M001 3 M MM 0.2 0.4 1.2 EIJS 13533M001 3 M M M 0.2 0.4 0.8 TUBO 11503M001 3 M M M 0.1 0.6 1.6 GOPE 11502M002 3 M M M 0.8 1.4 0.7 POLV 12336M001 4 M M M M 1.4 0.8 3.0 MOPI 11507M001 3 M M M 0.4 1.0 7.2 OSLS 10307M001 3 M M M 0.7 0.7 1.2 SULP 12366M001 2 M M 1.3 1.0 1.1 RIGA 12302M002 3 M M M 0.4 0.4 0.9 SVTL 12350M001 2 M M 0.6 0.3 3.1 DENT 13112M001 3 MM M 0.4 0.6 2.5 WARE 13114M001 3 MM M 0.6 0.6 2.6 MLVL 10092M001B 3 MM M 0.4 0.3 1.4 WSRT 13506M005 3 MM M 0.1 0.1 1.4 LINZ 11033S001 3 M M M 0.1 0.4 7.3 JOZE 12204M001 3 MM M 0.3 0.0 2.8 KELY 43005M001 2 M M 2.0 4.1 11.3 THU1 43001M001 2 N N 3.5 2.3 10.7 VARS 10322M002 2 MM 0.3 1.1 3.8 GSR1 14501M001B 2 M M 0.3 0.6 12.0 HFLK 11006S003 3 M MM 0.7 1.9 1.4 MANS 10091M001 1 M - - - ------------------------------------------------------------------------------- FLAGS: M: MEAN, F: FIXED, N: FREE NETWORK RESTRICTIONS 1 ------------------------------------------------------------------------------- UNWEIGHTED RMS VALUES WITH RESPECT TO THE COMBINED SOLUTION IN MM ------------------------------------------------------------------------------- PROCESSED FILES : 15 TOTAL NUMBER OF STATIONS: 116 ------------------------------------------------------------------------------- FILE GRP #SITES COV.COMP. COMPONENT RMS --------------------------------------------------- N 1.2 1 ASI 21 0.0160 E 4.1 U 4.3 --------------------------------------------------- N 0.7 2 BEK 30 0.0200 E 1.6 U 2.6 --------------------------------------------------- N 0.6 3 BKG 44 0.0200 E 0.8 U 2.6 --------------------------------------------------- N 0.9 4 COE 35 0.0040 E 1.6 U 3.8 --------------------------------------------------- N 1.8 5 DEO 20 0.0160 E 3.5 U 4.6 --------------------------------------------------- N 0.5 6 GOP 29 0.0200 E 0.6 U 2.6 --------------------------------------------------- N 1.2 7 IGE 14 0.0200 E 2.4 U 1.5 --------------------------------------------------- N 0.6 8 IGN 20 0.0200 E 0.9 U 1.6 --------------------------------------------------- N 0.2 9 LPT 18 0.0200 E 0.2 U 1.8 --------------------------------------------------- N 0.8 10 NKG 31 0.0200 E 1.0 U 2.8 --------------------------------------------------- N 0.5 11 OLG 32 0.0200 E 0.6 U 2.1 --------------------------------------------------- N 0.3 12 ROB 24 0.0200 E 0.5 U 1.3 --------------------------------------------------- N 0.4 13 SGO 13 0.0200 E 0.8 U 2.8 --------------------------------------------------- N 0.5 14 UPA 20 0.0200 E 0.7 U 5.2 --------------------------------------------------- N 1.4 15 WUT 23 0.0200 E 2.6 U 2.8 --------------------------------------------------- N 0.8 MEAN 116 E 1.7 U 3.0