Author: H. Habrich ******************************************************************************* EUREF REPORT FOR GPS WEEK 1236 (DAYS 257-263, DATES 14-09-03 - 20-09-03) ******************************************************************************* 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 SUT - Slovak University of Technology Bratislava, Slovakia 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 (heinz.habrich@bkg.bund.de) Products are available through A) http://igs.ifag.de/root_ftp/EUREF/products/ or ftp://igs.ifag.de/EUREF/products/ B) ftp://epncb.oma.be/epncb/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 1143-1147 ITRF00 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR VILL GRAS NYA1 TRO1 THU1 1148- ITRF00 BOR1 GRAZ KOSG MATE ONSA POTS REYK WTZR VILL GRAS NYA1 TRO1 ------------------------------------------------------------------------------- TABLE 2: AVAILABLE FILES AND REMARKS: ------------------------------------------------------------------------------- EUR12367.SUM THIS TEXT FILE EUR12367.SNX COMBINED EUROPEAN SOLUTION FOR GPS WEEK 1236 ------------------------------------------------------------------------------- REMARKS: - ------------------------------------------------------------------------------- TABLE 3: EXCLUDED STATIONS ------------------------------------------------------------------------------- --> EXCLUDE STATION: 237 CACE 13447M001 TO -1 CACE SCRATCHDEO --> EXCLUDE STATION: 245 CEUT 13449M001 TO -1 CEUT SCRATCHDEO --> EXCLUDE STATION: 227 MALL 13444M001 TO -1 MALL SCRATCHDEO --> EXCLUDE STATION: 171 MARS 10073M008 TO -1 MARS SCRATCHDEO --> EXCLUDE STATION: 191 MANS 10091M001 TO -1 MANS SCRATCHIGN ------------------------------------------------------------------------------- TABLE 4: COMPARISON OF STATION COORDINATES IN SINEX FILES (IN MM): ------------------------------------------------------------------------------- ASI BEK BKG COE DEO GOP IGE IGN LPT ------------------------------------------------------------------------------- STAX MEAN 1.7 11.3 2.0 -1.2 -277.5 -1.8 -13.9 -115.1 -4.1 STAY MEAN -3.2 -8.0 2.3 -1.6 49.0 -1.3 -2.4 -14.3 -3.3 STAZ MEAN 0.9 -5.8 3.5 -4.1 -237.7 -3.9 -5.0 -105.7 -2.5 ------------------------------------------------------------------------------- STAN MEAN 0.1 -10.6 0.5 -1.9 -11.1 -0.6 4.7 -0.7 1.9 STAE MEAN -3.6 -9.6 1.6 -1.8 26.4 -1.1 -3.7 -15.5 -2.8 STAU MEAN 1.4 3.5 4.1 -3.2 -363.0 -4.3 -13.6 -154.3 -4.7 NKG OLG ROB SGO SUT UPA WUT ----------------------------------------------------------------- STAX MEAN -0.1 0.5 0.2 -7.0 -0.5 -2.8 -1.9 STAY MEAN -2.4 -11.2 1.6 -14.0 -0.4 2.4 0.2 STAZ MEAN -2.2 -17.2 1.4 -3.1 0.9 -3.1 -1.8 ----------------------------------------------------------------- STAN MEAN -0.9 -8.9 0.7 6.4 1.3 -0.7 0.5 STAE MEAN -2.5 -10.5 1.5 -10.5 -0.1 2.6 0.1 STAU MEAN -1.9 -15.3 1.2 -10.2 0.1 -3.8 -2.5 ------------------------------------------------------------------------------- TABLE 5: COMPARISON OF STATION COORDINATES AFTER HELMERT TRANSFORMATION: ------------------------------------------------------------------------------- EUREF COMBINATION WEEK 1236, FREE NETWORK CONDITION ------------------------------------------------------------------------------- PROCESSED FILES : 16 TOTAL NUMBER OF STATIONS: 140 ------------------------------------------------------------------------------- 0000000001111111 RESIDUAL RMS IN MM STATION #FILES 1234567890123456 N E U ------------------------------------------------------------------------------- ALAC 13433M001 5 MM M MM 1.2 2.2 4.0 AQUI 12757M001 3 MM M 0.5 0.5 3.6 BELL 13431M001 4 MM M M 0.4 0.3 2.7 BZRG 12751M001B 4 MM MM 1.2 2.2 0.9 CACE 13447M001 3 M MM 0.4 1.5 3.7 CAGL 12725M003 4 MM M M 0.9 1.9 5.1 CAME 12754M001 4 M M MM 0.6 0.9 6.5 CEUT 13449M001 4 MM MM 1.1 2.8 2.3 CREU 13432M001 6 MM M MM M 0.6 0.5 7.0 DUBR 11901M001 4 M M M M 0.9 1.8 4.5 EBRE 13410M001 5 MM MM M 0.7 0.9 3.6 ELBA 12721M002 2 MM 0.3 1.7 1.9 GENO 12712M002 3 MM M 0.5 2.9 2.1 LAMP 12706M002 3 M M M 1.6 1.5 3.1 MALL 13444M001 5 M M MMM 1.0 3.1 7.0 MARS 10073M008 4 MM M M 1.2 1.6 1.8 MATE 12734M008 4 NNN N 0.4 0.3 3.0 MEDI 12711M003 3 MM M 0.6 1.5 1.3 NOT1 12717M004 3 MM M 0.3 2.7 8.5 PRAT 12760M001 4 MM M M 0.6 0.5 5.7 SFER 13402M004 5 MM M MM 1.4 1.0 3.3 SRJV 11801S001 4 MM M M 0.3 0.7 4.4 TORI 12724M002 3 MM M 0.6 0.6 6.1 VENE 12741M001B 3 MM M 0.9 1.7 2.9 VILL 13406M001 5 NN NN N 1.0 1.3 3.9 WTZR 14201M010 4 N N N N 0.4 2.1 4.2 UNPG 12752M001 3 MM M 0.7 3.0 6.1 AJAC 10077M005 4 M M M M 0.6 0.7 4.0 ANKR 20805M002 4 MMM M 1.0 0.7 4.2 ISTA 20807M001 4 MM M M 0.5 0.7 3.8 NICO 14302M001 3 MM M 1.6 1.6 3.6 TUBI 20806M001 4 MM M M 0.6 0.8 3.3 SOFI 11101M002 4 MM M M 0.3 0.5 2.7 CASC 13909S001 5 M MM MM 0.9 1.8 3.3 LPAL 81701M001 3 M M M 0.6 1.8 4.6 MAS1 31303M002 5 M MM MM 1.4 1.6 4.6 RABT 35001M002 4 MM M M 0.6 0.5 5.8 GSR1 14501M001B 3 M M M 0.4 0.7 1.7 GRAS 10002M006 4 N NN N 0.5 0.2 2.9 LLIV 13436M001 4 M MM M 0.7 0.7 3.2 PADO 12750S001 4 M M M M 0.7 0.6 2.4 SJDV 10090M001 3 M M M 0.6 0.4 3.0 TLSE 10003M009 3 M M M 0.6 0.3 1.2 ALME 13437M001 5 MMM M M 0.7 2.3 2.9 YEBE 13420M001 5 M M MM M 0.4 1.3 3.0 TRAB 20808M001 3 M M M 1.4 1.3 6.2 BORK 14268M001 3 M M M 0.5 0.1 2.3 BUCU 11401M001 4 M M M M 0.4 0.5 1.8 OSJE 11902M001 4 M M M M 0.2 0.2 2.4 BUDP 10101M003 4 M MM M 0.3 0.2 1.3 BRUS 13101M004 4 M M MM 0.6 0.3 3.5 HERS 13212M007 3 M M M 0.4 0.2 1.9 HELG 14264M001 4 MM M M 0.3 0.5 2.0 HOFN 10204M002 4 MM M M 0.5 0.4 6.8 HOBU 14202M003 3 M MM 0.1 0.1 0.9 KOSG 13504M003 4 N N N N 0.3 0.3 2.2 METS 10503S011 4 M M M M 0.5 0.9 2.8 MORP 13299S001 3 MM M 0.3 0.2 2.1 ONSA 10402M004 4 N N N N 0.4 0.2 1.0 PLYM 13229S001 3 M M M 0.5 1.5 4.4 POTS 14106M003 3 N N N 0.4 0.1 2.4 SMID 10114M001 3 M M M 0.2 0.1 1.0 STAS 10330M001 4 M MM M 0.7 0.7 2.9 TRDS 10331M001 3 M M M 0.4 0.2 2.0 DRES 14108M001 3 M M M 0.5 0.6 2.4 KARL 14216M001B 3 M M M 0.3 0.2 2.8 KLOP 14214M002B 4 M M M M 0.4 0.2 1.9 PFAN 11005S002 3 M M M 0.5 0.3 2.2 EUSK 14258M003B 3 M M M 0.1 0.1 0.4 HERT 13212M010 3 M M M 0.3 0.3 4.4 GLSV 12356M001 3 MM M 0.6 0.2 4.2 GRAZ 11001M002 4 N N N N 0.4 0.3 2.7 REYK 10202M001 4 NN N N 0.4 0.6 2.8 KIRU 10403M002B 3 MM M 0.6 0.3 5.5 PTBB 14234M001 4 MM MM 0.3 0.2 2.0 SASS 14281M001 3 M M M 0.4 0.3 1.0 ZECK 12351M001 3 MM M 1.1 0.7 7.4 WROC 12217M001 3 M M M 0.5 0.2 1.7 VIL0 10424M001 3 MM M 0.7 0.3 3.8 BRST 10004M004 4 M M M M 0.7 0.5 3.0 BOGO 12207M002 3 M M M 0.3 0.2 3.7 BOR1 12205M002 4 N N N N 0.3 0.3 3.2 DOUR 13113M001 3 M M M 0.2 0.2 0.9 JOEN 10512M001 3 M M M 0.6 0.4 4.1 KELY 43005M001 3 M M M 2.0 2.9 6.6 KIR0 10422M001 3 M M M 0.6 1.0 2.2 LAMA 12209M001B 3 M M M 0.4 0.5 3.0 MAR6 10405M002 3 M M M 0.4 0.3 2.9 NSSP 12312M001 1 M - - - NYA1 10317M003 3 N N N 0.2 0.4 1.5 PDEL 31906M004 4 MM M M 1.7 1.9 1.6 PENC 11206M006 4 M M M M 0.2 0.3 1.1 QAQ1 43007M001 3 M M M 1.7 1.9 7.3 RAMO 20703S001B 2 M M 0.5 5.5 3.5 SODA 10513M001 3 M MM 0.7 0.4 0.5 THU3 43001M002 3 M M M 1.3 1.3 2.0 TRO1 10302M006 3 N N N 1.9 3.0 3.9 VAAS 10511M001 3 M MM 0.7 0.5 4.8 ZIMM 14001M004 4 M M M M 0.8 0.3 2.3 GAIA 13902M001 3 M MM 0.9 2.3 4.3 LROC 10023M001 4 M MM M 0.3 0.3 2.5 CHIZ 10020M001 4 MM M M 0.5 0.4 1.6 VALE 13439M001 3 MMM 0.7 1.4 5.4 LAGO 13903M001 3 M M M 0.3 3.5 0.5 VLNS 10801M001 3 M M M 0.8 0.7 0.6 EIJS 13533M001 3 M M M 0.4 0.1 2.0 KATO 12219S001 3 M M M 0.2 0.3 2.7 KRAW 12218M001 4 M M M M 0.1 0.4 2.9 OBE2 14208M003 3 M MM 0.5 0.3 1.1 OSLS 10307M001 3 M M M 0.4 0.2 5.1 VIS0 10423M001 3 M MM 0.6 0.4 2.3 ZYWI 12220S001 4 M M M M 0.4 0.3 2.4 DRAG 20710S001 2 M M 3.3 1.6 1.4 MANS 10091M001 3 M M M 1.1 0.4 5.1 GOPE 11502M002 4 M M M M 0.3 0.4 3.7 NYIR 11208M001 3 M M M 0.4 0.1 2.3 OROS 11207M001 4 M M MM 0.1 0.3 3.6 MIKL 12335M001 4 M M M M 1.0 0.6 3.8 POLV 12336M001 4 M M M M 1.1 1.0 2.7 MOPI 11507M001 4 M M M M 0.3 0.7 4.3 RIGA 12302M002 4 M M M M 0.6 1.6 5.3 SULP 12366M001 4 M MM M 0.3 0.5 3.1 TUBO 11503M001 3 M M M 0.1 0.3 4.3 UZHL 12301M001 4 M M M M 0.4 0.2 2.1 DARE 13208S001 3 M M M 0.6 1.7 3.5 DENT 13112M001 3 MM M 0.7 0.1 1.3 WARE 13114M001 3 MM M 0.7 0.1 2.6 MLVL 10092M001B 4 MM M M 0.8 0.3 2.4 DELF 13502M004 2 M M 0.1 0.1 1.1 TERS 13534M001 2 M M 0.0 0.1 2.1 WSRT 13506M005 3 MM M 0.3 0.0 1.0 REDU 13102M001 3 M M M 0.3 0.2 0.7 JOZE 12204M001 4 MM M M 0.3 0.2 2.5 SULD 10113M001 3 M M M 0.4 0.4 1.1 VARS 10322M002 3 MM M 1.3 0.7 2.0 SPT0 10425M001 3 M M M 0.3 0.4 1.3 BOGI 12207M003 3 M M M 0.3 0.4 3.4 JOZ2 12204M002 3 M M M 0.6 0.4 3.1 INVE 13221S001 3 M M M 0.8 0.9 4.5 OBET 14208M004 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 : 16 TOTAL NUMBER OF STATIONS: 140 ------------------------------------------------------------------------------- FILE GRP #SITES COV.COMP. COMPONENT RMS --------------------------------------------------- N 1.1 1 ASI 27 0.0160 E 2.6 U 4.7 --------------------------------------------------- N 0.8 2 BEK 37 0.0200 E 0.8 U 4.0 --------------------------------------------------- N 0.3 3 BKG 48 0.0200 E 0.6 U 3.4 --------------------------------------------------- N 0.7 4 COE 37 0.0200 E 1.0 U 2.6 --------------------------------------------------- N 1.0 5 DEO 19 0.0160 E 2.2 U 4.7 --------------------------------------------------- N 0.9 6 GOP 36 0.0200 E 0.6 U 3.4 --------------------------------------------------- N 0.5 7 IGE 22 0.0200 E 0.8 U 2.2 --------------------------------------------------- N 0.7 8 IGN 22 0.0200 E 0.5 U 2.2 --------------------------------------------------- N 0.2 9 LPT 20 0.0200 E 0.1 U 1.0 --------------------------------------------------- N 0.3 10 NKG 38 0.0200 E 0.5 U 2.5 --------------------------------------------------- N 0.6 11 OLG 43 0.0200 E 0.7 U 2.4 --------------------------------------------------- N 0.3 12 ROB 34 0.0200 E 0.4 U 1.5 --------------------------------------------------- N 0.3 13 SGO 16 0.0200 E 0.5 U 2.9 --------------------------------------------------- N 0.8 14 SUT 29 0.0200 E 1.0 U 4.2 --------------------------------------------------- N 0.5 15 UPA 15 0.0200 E 0.6 U 2.5 --------------------------------------------------- N 0.6 16 WUT 42 0.0200 E 1.0 U 2.8 --------------------------------------------------- N 0.6 MEAN 140 E 1.0 U 3.1