Author: M. Becker, BKG, Dept. G1 ******************************************************************************* EUREF REPORT FOR GPS WEEK 1021 (DAYS 213-219, DATES 01-08-99 - 07-08-99) ******************************************************************************* 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) GOP - Geodetic Observatory Pecny, Czech Republic 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 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 : Matthias Becker (becker@ifag.de) Products available through anonymous ftp using: A) ftp ubeclu.unibe.ch -or- ftp 130.92.6.11 after login: cd aiub$ftp; cd euref B) ftp igs.ifag.de -or- ftp 141.74.240.26 after login: cd pub/EUREF/CLUSTERS/wwww (GPS week wwww) C) ftp ftpserver.oma.be -or- ftp 193.190.249.203 after login: cd pub/astro/euref/product/combin Processing Strategy: -------------------- - The combined weekly EUREF solution (EUR) is created after removing the Analysis Center 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. - To align the EUREF weekly solutions with the terrestrial reference frame a selected set of "reference stations" is fixed to their ITRF coordinates. - For the realization of the ITRF94 reference frame the following sites were used (from GPS week 0860 to GPS week 0946): BRUS, GRAZ, KOSG, MATE, METS, ONSA, WTZR, ZIMM - For the realization of the ITRF96 reference frame the following sites are used from GPS week 0947 - 0981: BOR1, GRAZ, KOSG, MATE, ONSA, POTS, REYK, WTZR, ZIMM, ZWEN, VILL From GPS week 0982 - 1020: BOR1, GRAZ, KOSG, MATE, ONSA, POTS, REYK, WTZR, ZIMM, ZWEN, VILL, GRAS - For the realization of the ITRF97 reference frame the following sites are used from GPS week 1021 onwards: BOR1, GRAZ, KOSG, MATE, ONSA, POTS, REYK, WTZR, ZWEN, VILL, GRAS NYA1, THU1, TRO1. - 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 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 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. AVAILABLE FILES: ----------------------------------------------------------------------------- EUR10217.SUM THIS TEXT FILE EUR10217.SNX COMBINED EUROPEAN SOLUTION FOR GPS WEEK 1021 ----------------------------------------------------------------------------- REMARKS: - Site OBER 14208M001 from one AC was excluded from the combination due to an antenna type error. - Starting with this week ITRF97 is used as reference frame. - Please note that the sites used to generate the fixed coordinates in ITRF97 are changed. Three IGS core sites NYA1, THU1 and TRO1 were added. ZIMM is excluded due to a change in antenna and an resulting height offset versus ITRF97 coordinates. COMBINATION GPSWEEK 1021, EUROPE ------------------------------------------------------------------------------- PROCESSED FILES : 12 TOTAL NUMBER OF STATIONS: 78 ------------------------------------------------------------------------------- 000000000111 RESIDUAL RMS IN MM STATION #FILES 123456789012 N E U ------------------------------------------------------------------------------- BZRG 12751M001 3 MM M 1.3 3.8 6.1 CAGL 12725M003 3 MM M 1.1 1.0 4.5 EBRE 13410M001 3 MM M 1.2 .9 1.9 GENO 12712M002 3 MM M .7 .7 6.0 LAMP 12706M002 3 M M M 1.8 1.5 3.0 MATE 12734M008 4 NNN N .7 1.6 2.8 MEDI 12711M003 3 MM M .7 .8 2.9 NOTO 12717M003 3 MM M 1.2 1.1 4.0 SFER 13402M004 3 MM M 4.1 3.7 4.3 VENE 12741M001 4 MM M M .9 3.7 11.4 VILL 13406M001 3 NN N 1.2 1.1 3.2 WTZR 14201M010 4 N N N N .8 1.5 1.8 BELL 13431M001 2 MM .4 6.2 2.5 TORI 12724M002 3 MM M .5 1.4 3.8 UNPG 12752M001 3 MM M .7 2.8 5.5 ANKR 20805M002 3 MMM 1.5 1.5 4.1 RAMO 20703S001 2 M M 2.3 3.7 4.8 CASC 13909S001 3 M M M 2.9 2.0 3.0 CREU 13432M001 2 M M 1.5 .7 8.2 MARS 10073M008 3 M M M .4 1.1 6.3 UPAD 12750M002 4 M M M M .7 .4 3.6 SJDV 10090M001 3 M M M .9 .9 4.0 TOUL 10003M004 3 M M M .2 1.2 10.1 GRAS 10002M006 3 N NN 1.2 .8 9.3 LLIV 13436M001 3 M M M 1.3 .4 8.4 SOFI 11101M002 3 MM M .9 1.1 3.7 GLSV 12356M001 3 MM M .8 .7 3.0 BRST 10004M004 3 M M M 1.0 1.0 3.0 BRUS 13101M004 3 M M M .3 1.4 4.6 GRAZ 11001M002 3 N N N .2 .5 4.1 KOSG 13504M003 3 N N N .7 .5 2.7 ONSA 10402M004 4 N N N N 1.0 1.1 2.7 POTS 14106M003 3 N N N .8 1.0 2.0 VIL0 10424M001 3 MM M .6 .4 2.1 KARL 14216M001 2 M M .2 .2 4.5 SBGZ 11031S001 3 M M M .5 .6 4.4 ZECK 12351M001 3 MMM 2.4 .9 2.4 HERS 13212M007 3 M M M .5 5.2 2.9 HOFN 10204M002 3 MM M .4 .7 2.7 REYK 10202M001 3 NN N .5 .4 1.2 KIRU 10403M002 2 MM 1.0 .7 3.8 ZWEN 12330M001 3 NNN .5 .9 2.8 BUCU 11401M001 3 M M M 1.2 1.5 2.8 EUSK 14258M003 2 M M 1.0 .2 3.4 METS 10503S011 3 M M M 1.4 .5 1.7 BOR1 12205M002 3 N N N .4 .6 3.7 MAR6 10405M002 3 MM M .1 .4 1.6 BOGO 12207M002 3 MM M .2 .3 2.3 DELF 13502M004 3 M M M .6 .6 3.5 DOUR 13113M001 3 M M M .4 .6 2.6 TERS 13534M001 3 M M M 1.0 .3 3.7 ZIMM 14001M004 3 M M M .4 .7 4.2 LAMA 12209M001 3 M M M .7 .5 3.6 MDVO 12309M002 3 MM M .8 3.9 1.8 KELY 43005M001 2 M M 3.0 1.7 1.5 KIR0 10422M001 2 M M 1.0 .2 .5 PENC 11206M006 3 M M M .2 .3 2.4 NYA1 10317M003 2 N N .6 1.1 4.6 SODA 10513M001 2 M M .7 .2 1.2 THU1 43001M001 2 N N 2.1 1.1 5.1 TRO1 10302M006 2 N N .8 .5 2.9 VAAS 10511M001 3 M MM 1.2 .7 2.2 JOEN 10512M001 3 M M M 1.2 .5 5.5 VIS0 10423M001 3 M MM .7 .3 2.7 EIJS 13533M001 3 M M M .4 .4 3.0 MANS 10091M001 3 MM M .9 .9 4.1 MOPI 11507M001 3 M M M 1.2 .5 5.4 GOPE 11502M002 3 M M M .5 1.1 1.2 RIGA 12302M002 3 M M M .2 .5 2.0 SVTL 12350M001 3 M M M 1.4 .7 2.5 DENT 13112M001 3 MM M 2.5 .6 4.1 PFAN 11005S002 3 M M M .6 .4 1.8 WARE 13114M001 2 M M .1 .6 1.2 JOZE 12204M001 3 MM M 1.0 .6 2.0 WSRT 13506M005 2 M M .7 1.5 5.5 HFLK 11006S003 3 M MM .2 1.4 3.2 UZHL 12301M001 2 M M .6 .6 3.2 OBER 14208M001 2 MM .3 .4 3.6 ------------------------------------------------------------------------------- FLAGS: M: MEAN, F: FIXED, N: FREE NETWORK RESTRICTIONS 1 ------------------------------------------------------------------------------- UNWEIGHTED RMS VALUES WITH RESPECT TO THE COMBINED SOLUTION IN MM ------------------------------------------------------------------------------- PROCESSED FILES : 12 TOTAL NUMBER OF STATIONS: 78 ------------------------------------------------------------------------------- FILE GRP #SITES COV.COMP. COMPONENT RMS --------------------------------------------------- N 1.5 1 ASI 15 .0080 E 3.4 U 3.7 --------------------------------------------------- N 1.2 2 BEK 24 .0200 E 1.2 U 5.6 --------------------------------------------------- N .6 3 BKG 24 .0200 E .9 U 2.3 --------------------------------------------------- N 1.3 4 COE 32 .0200 E 1.0 U 2.3 --------------------------------------------------- N .6 5 GOP 15 .0200 E .7 U 2.7 --------------------------------------------------- N 1.1 6 IGN 10 .0200 E 1.1 U 5.9 --------------------------------------------------- N .8 7 LPT 11 .0200 E .4 U 2.6 --------------------------------------------------- N .4 8 NKG 23 .0200 E .9 U 2.0 --------------------------------------------------- N .6 9 OLG 20 .0200 E .6 U 3.9 --------------------------------------------------- N .7 10 ROB 19 .0200 E 1.5 U 3.2 --------------------------------------------------- N .6 11 UPA 11 .0200 E .6 U 4.1 --------------------------------------------------- N 1.0 12 WUT 19 .0200 E 1.1 U 3.2 --------------------------------------------------- N .9 MEAN 78 E 1.3 U 3.4