| Date: | 2006-01-20 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 6679: Delft QL Report January 20, 2006 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2006-01-20 13:15:00 UTC Message No. 6679 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report January 20, 2006 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS January 20, 2006 This is a daily report, presenting the results of a continuing analysis of the most recent global LAGEOS-1 and LAGEOS-2 quick-look laser ranging data. The report consists of (A) a pass summary, (B) an overview of the analysis results, detailed statistics of the analysed measurements, and an accumulative pass overview and (C) the earth rotation parameter solutions submitted to IERS. The report is based on all quick-look data as received until Fri, Jan 20, 2006. Questions and comments should be addressed to: R. Noomen Delft University of Technology Faculty of Aerospace Engineering Delft Institute for Earth-Oriented Space Research Kluyverweg 1 2629 HS Delft The Netherlands Telephone: +31-15-2785377 Telefax : +31-15-2785322 E-mail : ron.noomen@deos.tudelft.nl A. PASS SUMMARY The table below gives an overview of the ranging data both on LAGEOS-1 and LAGEOS-2, as received by the Quick-Look Data Analysis Center (QLDAC) on Fri, Jan 20, 2006. All data were obtained through the NASA Crustal Dynamics Data Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany. The data are unscreened and may span more than a week due to late reporting by the stations. ------------------------------------------------------------------------------ Station System/Location Period No. of Passes ID LAGEOS-1 LAGEOS-2 ------------------------------------------------------------------------------ 1864 Maidanak, Uzbekistan (site 2) 060119 - 060119 2 1 1884 Riga, Latvia 060118 - 060119 4 3 6405 Concepcion, Chile (TIGO 847) 060120 - 060120 2 2 6810 Zimmerwald 846, Switzerland 060119 - 060119 2 1 7080 McDonald Obs., Fort Davis, TX 060119 - 060119 1 2 7090 Yarragadee, Australia 060118 - 060119 4 4 7105 Greenbelt, Maryland 060118 - 060119 2 3 7110 Monument Peak, California 060118 - 060118 1 - 7237 Changchun, China 060118 - 060119 5 4 7810 Zimmerwald 423, Switzerland 060119 - 060119 2 1 7832 Riyad, Saudi Arabia 060118 - 060118 - 1 7839 Graz, Austria 060118 - 060119 3 3 ------ ------ --- --- TOTAL 060118 - 060120 28 25 ------------------------------------------------------------------------------ B. ANALYSIS RESULTS The analysis is based on two orbit solutions using global quick-look normal points that cover a period of 8 days which are computed simultaneously. This week´s data interval runs from Thu, Jan 12, 2006 to Fri, Jan 20, 2006. The measurement and dynamic models used in this analysis are close to the IERS Standard. The overall model is referred to as QLDACMOD11. The details of this model can be obtained on request. The terrestrial reference frame is provided by the ITRF2000 station coordinates solution (extended with coordinates of new stations, where necessary). The general statistics and results of this week´s analysis are thus: ----------------------------------------------------------------------- Satellite LAGEOS-1 LAGEOS-2 Number of Stations 0 0 Number of Passes 0/ 0 0/ 0 Number of Normal Points 0/ 0 0000/ 0 Weighted RMS of Fit (mm) 0 0 ----------------------------------------------------------------------- Residual statistics per station. The header line for each station shows the station id, its name, whether the position is solved for or not and the measurement accuracy in mm. Rejected observations are not used for the calculation of the rms-of-fit, the biases or the scatter. The latter holds w.r.t. the residual trend line described by the bias estimates. Uncertainties are 3-sigma values. -------------------------------------------------------------------------------- Date Time Sat. Obs. RMS Range Bias Time Bias Scatter tot/rej (mm) (mm) (us) (mm) -------------------------------------------------------------------------------- Distribution of daytime, nighttime and twilight passes since Jan 1, 2003: -------------------------------------------------------------------------- Station System Period Number of Passes LAGEOS-1 LAGEOS-2 Day/Night/Twil. Day/Night/Twil. Total -------------------------------------------------------------------------- 1824 KIEVLA 051005 - 051102 0/ 9/ 0 0/ 3/ 0 12 1831 LVIL 050703 - 051103 0/ 68/ 0 0/ 15/ 0 83 1864 MD2LAS 050701 - 060119 0/129/ 0 0/ 58/ 0 187 1873 SIMLAS 050701 - 051222 0/ 59/ 0 0/ 12/ 0 71 1884 RIGLAS 050703 - 060119 0/105/ 1 0/ 29/ 0 135 1893 CRMLAS 050723 - 051013 0/ 17/ 0 0/ 0/ 0 17 6405 TIGO 050705 - 060120 53/ 22/ 4 45/ 41/ 6 171 6810 ZIMLAT 050701 - 060119 118/251/ 25 153/144/ 21 712 7080 MLRS25 050701 - 060119 7/ 86/ 2 10/ 75/ 3 183 7090 ML0514 050701 - 060119 216/164/ 33 171/231/ 20 835 7105 ML0725 050704 - 060119 15/107/ 11 23/ 67/ 8 231 7110 ML0414 050701 - 060118 54/203/ 31 61/108/ 11 468 7124 ML0819 050818 - 051102 1/ 14/ 2 1/ 32/ 1 51 7130 TL04** 050803 - 051219 8/ 26/ 1 12/ 11/ 2 60 7237 CHALAS 050410 - 060119 0/220/ 2 0/148/ 0 370 7249 BEJLAS 050703 - 060106 0/105/ 0 0/ 68/ 0 173 7308 CRLLAS 060110 - 060112 0/ 2/ 0 0/ 4/ 0 6 7355 TROS02 050701 - 050906 0/ 24/ 0 0/ 0/ 0 24 7358 GMSL 050802 - 060111 7/ 16/ 0 2/ 9/ 0 34 7405 TIGO 050705 - 060117 2/ 8/ 0 0/ 10/ 0 20 7501 ML0616 050701 - 060117 24/ 47/ 5 14/ 65/ 3 158 7810 ZIMLAT 050701 - 060119 118/248/ 25 154/141/ 22 708 7811 POLLAS 050704 - 060117 0/ 97/ 0 0/ 26/ 0 123 7821 CHILAS 051213 - 060110 0/ 7/ 0 0/ 13/ 0 20 7824 SPNLAS 050701 - 060114 10/158/ 8 10/ 92/ 7 285 7825 STL3 050702 - 060114 302/120/ 24 165/180/ 24 815 7832 SALRO 050702 - 060118 99/232/ 26 109/175/ 20 661 7835 GRASSE 050701 - 050705 0/ 3/ 0 0/ 2/ 0 5 7838 SHOLAS 050714 - 060115 27/106/ 8 27/ 92/ 5 265 7839 AUSLAS 050702 - 060119 62/156/ 24 101/ 70/ 7 420 7840 RGOLAS 050702 - 060117 75/233/ 29 112/111/ 12 572 7841 GFZLA3 050713 - 060116 12/101/ 9 8/ 41/ 4 175 7848 FTLR06 050515 - 051027 6/ 48/ 2 5/ 22/ 4 87 7941 MLROnn 050701 - 051228 54/146/ 12 70/ 70/ 10 362 8834 WLRS01 050702 - 060117 88/177/ 27 116/ 91/ 13 512 -------------------------------------------------------------------------- C. EARTH ROTATION PARAMETER SOLUTIONS FOR IERS The following solutions for the polar motion and the UT1-UTC time difference were also obtained in the 10-day data arc analysis described in the previous section. Only solutions submitted to IERS are presented here. From: Ron Noomen ******************************************************************************** |