| Date: | 2004-10-26 08:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4465: Delft QL Report October 26, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-10-26 08:15:00 UTC Message No. 4465 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report October 26, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS October 26, 2004 This is a weekly 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 Mon, Oct 25, 2004. 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 Mon, Oct 25, 2004. 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 ------------------------------------------------------------------------------ 1824 Kiev, Ukraine 041019 - 041019 1 1 1831 Lviv, Ukraine 041019 - 041025 1 2 1864 Maidanak, Uzbekistan (site 2) 041018 - 041021 4 4 1873 Simeiz, Crimea, Ukraine 041021 - 041024 2 - 6405 Concepcion, Chile (TIGO 847) 041019 - 041019 1 - 6810 Zimmerwald 846, Switzerland 041020 - 041024 11 6 7080 McDonald Obs., Fort Davis, TX 041019 - 041023 3 7 7090 Yarragadee, Australia 041018 - 041025 9 7 7110 Monument Peak, California 041023 - 041023 1 1 7237 Changchun, China 041018 - 041024 6 8 7249 Beijing, China 041018 - 041022 6 6 7604 Brest, France (FTLRS) 041017 - 041021 1 2 7806 Metsahovi, Finland 041020 - 041020 1 - 7810 Zimmerwald 423, Switzerland 041020 - 041024 12 6 7811 Borowiec, Poland 041019 - 041022 4 3 7824 San Fernando, Spain 041006 - 041021 1 3 7825 Mount Stromlo, Australia 041003 - 041024 10 3 7832 Riyad, Saudi Arabia 041018 - 041025 16 19 7837 Shanghai Observatory, China 041018 - 041024 8 9 7838 Simosato Observatory, Japan 041024 - 041024 1 1 7839 Graz, Austria 041017 - 041025 21 12 7841 Potsdam, Germany 041019 - 041022 4 5 7941 Matera, Italy (MLRO 532) 041020 - 041025 3 3 8834 Wettzell, Germany 041018 - 041025 22 13 ------ ------ --- --- TOTAL 041003 - 041025 149 121 ------------------------------------------------------------------------------ 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 Sat, Oct 16, 2004 to Sun, Oct 24, 2004. 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 21 19 Number of Passes 128/126 120/119 Number of Normal Points 1238/1210 1237/1222 Weighted RMS of Fit (mm) 10 10 ----------------------------------------------------------------------- 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) -------------------------------------------------------------------------------- Station 1824 (Kiev) (position solved, acc. 200 mm) 1824 19 Oct 04 17:32 LAG1 5 0 45 -47 +- 601 -55 +- 620 38 1824 19 Oct 04 23:33 LAG2 6 0 56 7 +- 252 -72 +- 797 51 Station 1831 (Lviv) (position fixed, acc. 400 mm) 1831 19 Oct 04 19:21 LAG2 3 0 86 0 +-1749 66 +-1342 14 1831 20 Oct 04 21:31 LAG2 8 0 84 18 +- 733 91 +- 677 9 Station 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 18 Oct 04 15:01 LAG1 6 0 58 29 +- 245 -6 +- 106 48 1864 18 Oct 04 17:31 LAG2 7 0 10 8 +- 304 4 +- 213 7 1864 19 Oct 04 13:52 LAG1 5 0 18 13 +- 298 -7 +- 262 13 1864 19 Oct 04 15:42 LAG2 6 0 21 -11 +- 246 14 +- 237 11 1864 20 Oct 04 15:47 LAG1 10 0 45 -33 +- 189 14 +- 106 16 1864 20 Oct 04 17:43 LAG2 7 0 60 -23 +- 346 26 +- 225 11 1864 21 Oct 04 14:27 LAG1 9 0 17 0 +- 201 -1 +- 113 17 1864 21 Oct 04 15:47 LAG2 10 0 33 -1 +- 248 21 +- 206 20 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 21 Oct 04 18:32 LAG1 4 0 11669 11665 +-1627 2 +-1019 59*CHK* Station 6405 (Concepcion) (position solved, acc. 20 mm) 6405 19 Oct 04 12:09 LAG1 7 0 4 0 +- 159 0 +- 67 4 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 16 Oct 04 11:25 LAG1 11 0 15 -17 +- 74 2 +- 53 3 6810 16 Oct 04 12:47 LAG2 11 0 48 -42 +- 55 13 +- 49 20 6810 16 Oct 04 14:43 LAG1 10 0 34 -30 +- 64 6 +- 65 2 6810 16 Oct 04 16:43 LAG2 20 0 12 -11 +- 42 -3 +- 29 4 6810 20 Oct 04 21:52 LAG2 4 0 4 32 +- 677 -19 +- 408 1 6810 21 Oct 04 18:21 LAG1 5 0 13 18 +- 316 5 +- 205 6 6810 22 Oct 04 17:03 LAG1 7 0 23 11 +- 69 -12 +- 59 14 6810 22 Oct 04 17:37 LAG2 9 0 12 2 +- 66 4 +- 38 8 6810 22 Oct 04 20:29 LAG1 11 0 8 -1 +- 55 -4 +- 44 6 6810 23 Oct 04 08:51 LAG1 5 0 8 -3 +- 87 3 +- 88 7 6810 23 Oct 04 12:33 LAG1 2 0 29 -40 +- 636 14 +- 851 0 6810 23 Oct 04 19:05 LAG1 14 0 11 4 +- 49 -3 +- 29 9 6810 23 Oct 04 19:43 LAG2 15 0 13 -11 +- 48 -1 +- 33 5 6810 23 Oct 04 22:51 LAG1 1 0 13 0 +- 0 0 +- 0 0 6810 23 Oct 04 23:45 LAG2 8 0 18 -23 +- 153 -9 +- 147 11 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 16 Oct 04 19:03 LAG1 13 0 17 -18 +- 29 1 +- 18 1 7080 16 Oct 04 20:15 LAG2 15 0 10 12 +- 23 -3 +- 17 3 7080 17 Oct 04 00:21 LAG2 12 0 10 6 +- 26 -13 +- 27 1 7080 18 Oct 04 02:30 LAG2 17 0 8 8 +- 17 -5 +- 16 3 7080 18 Oct 04 03:35 LAG1 15 0 1 0 +- 17 0 +- 12 1 7080 18 Oct 04 06:38 LAG2 4 0 17 -32 +- 305 -9 +- 179 0 7080 19 Oct 04 05:05 LAG2 4 0 23 -26 +- 103 3 +- 100 3 7080 19 Oct 04 05:51 LAG1 12 0 13 12 +- 19 -8 +- 18 3 7080 19 Oct 04 08:53 LAG2 12 0 10 8 +- 20 3 +- 25 1 7080 20 Oct 04 02:59 LAG2 13 0 2 0 +- 36 1 +- 31 2 7080 20 Oct 04 04:23 LAG1 18 1 49 -10 +- 16 10 +- 10 46 7080 20 Oct 04 06:51 LAG2 7 0 20 -17 +- 113 2 +- 72 2 7080 21 Oct 04 04:59 LAG2 11 0 5 -1 +- 21 -4 +- 18 2 7080 21 Oct 04 09:11 LAG2 10 0 7 8 +- 28 -5 +- 44 3 7080 23 Oct 04 16:33 LAG1 7 0 3 3 +- 25 0 +- 34 0 7080 23 Oct 04 22:59 LAG2 16 0 9 -10 +- 17 1 +- 15 2 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 16 Oct 04 13:37 LAG1 11 0 10 -13 +- 17 3 +- 10 2 7090 16 Oct 04 16:49 LAG1 18 0 5 -2 +- 10 -3 +- 7 3 7090 16 Oct 04 18:05 LAG2 6 0 5 10 +- 344 6 +- 146 2 7090 17 Oct 04 11:57 LAG1 21 0 7 -4 +- 9 3 +- 7 3 7090 17 Oct 04 15:33 LAG1 21 0 7 -4 +- 9 3 +- 5 2 7090 17 Oct 04 16:23 LAG2 22 0 2 1 +- 9 0 +- 7 2 7090 17 Oct 04 19:07 LAG1 9 0 8 6 +- 18 -9 +- 24 5 7090 17 Oct 04 20:18 LAG2 25 0 6 -5 +- 8 1 +- 5 1 7090 17 Oct 04 22:21 LAG1 10 0 12 -2 +- 15 14 +- 16 2 7090 18 Oct 04 05:02 LAG2 1 0 1 0 +- 0 0 +- 0 0 7090 18 Oct 04 14:11 LAG1 13 0 4 -4 +- 12 -1 +- 6 1 7090 19 Oct 04 00:33 LAG1 9 0 23 -35 +- 25 11 +- 15 5 7090 21 Oct 04 13:31 LAG1 23 0 7 -5 +- 8 2 +- 4 2 7090 21 Oct 04 16:46 LAG2 7 0 5 11 +- 89 4 +- 54 2 7090 21 Oct 04 17:09 LAG1 11 0 10 5 +- 13 -4 +- 12 6 7090 21 Oct 04 20:31 LAG1 11 0 5 2 +- 14 -7 +- 17 1 7090 21 Oct 04 20:51 LAG2 11 0 8 -18 +- 26 -12 +- 20 0 7090 22 Oct 04 12:17 LAG1 21 0 4 -3 +- 9 0 +- 6 2 7090 22 Oct 04 15:09 LAG2 10 0 3 2 +- 13 -3 +- 27 2 7090 22 Oct 04 15:55 LAG1 15 0 6 0 +- 13 -3 +- 7 3 7090 22 Oct 04 22:29 LAG1 11 0 10 -9 +- 12 -4 +- 13 2 7090 22 Oct 04 23:19 LAG2 7 0 11 -16 +- 25 -10 +- 35 3 7090 23 Oct 04 14:22 LAG1 3 0 22 -56 +- 603 -13 +- 234 0 7090 23 Oct 04 17:06 LAG2 13 0 10 -9 +- 11 -2 +- 10 3 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 17 Oct 04 00:13 LAG2 11 0 18 -5 +- 14 -8 +- 14 13 7110 23 Oct 04 04:07 LAG1 10 0 6 -5 +- 30 4 +- 13 3 7110 23 Oct 04 05:09 LAG2 8 0 11 -19 +- 26 -15 +- 30 1 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 16 Oct 04 10:24 LAG1 15 0 9 0 +- 48 2 +- 28 7 7237 16 Oct 04 13:49 LAG2 7 0 10 3 +- 62 -16 +- 110 6 7237 16 Oct 04 14:18 LAG1 5 0 26 19 +- 89 16 +- 199 8 7237 17 Oct 04 12:03 LAG2 9 0 33 -9 +- 188 -13 +- 108 6 7237 17 Oct 04 12:43 LAG1 15 0 37 13 +- 41 18 +- 26 9 7237 18 Oct 04 09:51 LAG2 9 0 28 3 +- 62 -21 +- 50 13 7237 18 Oct 04 11:15 LAG1 13 0 10 -1 +- 43 4 +- 22 7 7237 18 Oct 04 13:52 LAG2 7 0 10 1 +- 58 3 +- 58 9 7237 19 Oct 04 09:55 LAG1 19 0 21 -19 +- 35 3 +- 20 7 7237 19 Oct 04 11:51 LAG2 18 0 22 2 +- 36 -15 +- 25 8 7237 19 Oct 04 13:30 LAG1 18 0 12 10 +- 36 1 +- 27 6 7237 19 Oct 04 15:58 LAG2 8 0 17 11 +- 59 1 +- 34 11 7237 20 Oct 04 10:01 LAG2 20 0 12 12 +- 44 -7 +- 30 7 7237 22 Oct 04 09:33 LAG1 13 0 31 16 +- 53 12 +- 37 6 7237 22 Oct 04 10:25 LAG2 15 0 33 15 +- 74 -29 +- 49 7 7237 22 Oct 04 12:57 LAG1 13 0 27 24 +- 42 6 +- 30 8 7237 22 Oct 04 14:26 LAG2 10 0 21 16 +- 50 -21 +- 61 4 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 18 Oct 04 11:17 LAG1 18 0 26 10 +- 36 -10 +- 22 14 7249 18 Oct 04 13:43 LAG2 19 0 21 5 +- 37 9 +- 29 17 7249 18 Oct 04 14:58 LAG1 6 0 28 9 +- 63 -32 +- 112 19 7249 19 Oct 04 10:19 LAG1 6 1 37 -91 +- 232 63 +- 164 25 7249 19 Oct 04 11:49 LAG2 18 0 15 -9 +- 36 -3 +- 32 11 7249 19 Oct 04 13:30 LAG1 13 0 17 0 +- 43 4 +- 37 16 7249 21 Oct 04 10:43 LAG1 18 0 49 10 +- 36 26 +- 22 24 7249 21 Oct 04 12:05 LAG2 15 0 7 4 +- 40 1 +- 40 5 7249 21 Oct 04 14:19 LAG1 9 0 17 -14 +- 85 1 +- 80 6 7249 21 Oct 04 16:01 LAG2 4 0 56 -744 +-1591 -355 +- 727 27 7249 22 Oct 04 10:25 LAG2 11 0 10 23 +- 135 -16 +- 90 5 7249 22 Oct 04 14:15 LAG2 8 3 65 96 +- 135 94 +- 220 36 Station 7604 (Brest) (position solved, acc. 20 mm) 7604 17 Oct 04 01:08 LAG2 1 0 0 0 +- 0 0 +- 0 0 7604 21 Oct 04 22:18 LAG1 1 0 16 0 +- 0 0 +- 0 0 7604 21 Oct 04 23:34 LAG2 11 0 6 1 +- 19 -3 +- 25 5 Station 7806 (Metsahovi) (position fixed, acc. 30 mm) 7806 20 Oct 04 16:23 LAG1 11 0 9 -11 +- 47 7 +- 27 3 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 16 Oct 04 11:25 LAG1 10 0 10 5 +- 73 3 +- 58 6 7810 16 Oct 04 12:47 LAG2 11 0 61 -35 +- 55 25 +- 47 39 7810 16 Oct 04 14:43 LAG1 10 0 23 -17 +- 65 8 +- 65 1 7810 16 Oct 04 16:43 LAG2 20 0 10 4 +- 42 -5 +- 29 4 7810 20 Oct 04 21:53 LAG2 5 0 19 12 +- 604 3 +- 350 2 7810 21 Oct 04 18:21 LAG1 9 0 18 12 +- 65 -6 +- 47 2 7810 22 Oct 04 13:41 LAG1 4 0 17 0 +- 115 -10 +- 68 2 7810 22 Oct 04 16:54 LAG1 9 0 20 18 +- 61 -6 +- 44 7 7810 22 Oct 04 17:38 LAG2 4 0 9 8 +- 95 6 +- 77 0 7810 22 Oct 04 20:27 LAG1 11 0 13 4 +- 68 -6 +- 47 5 7810 23 Oct 04 08:56 LAG1 3 0 13 9 +- 142 4 +- 153 1 7810 23 Oct 04 12:21 LAG1 5 0 11 -9 +- 108 -2 +- 111 8 7810 23 Oct 04 19:05 LAG1 13 0 15 12 +- 50 -3 +- 25 7 7810 23 Oct 04 19:51 LAG2 6 0 16 3 +- 74 -13 +- 62 4 7810 23 Oct 04 22:50 LAG1 1 0 7 0 +- 0 0 +- 0 0 7810 23 Oct 04 23:49 LAG2 6 0 6 5 +- 174 0 +- 210 4 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 19 Oct 04 17:50 LAG1 4 0 38 -1 +- 398 27 +- 278 4 7811 21 Oct 04 18:19 LAG1 13 0 38 38 +- 51 -7 +- 35 8 7811 21 Oct 04 19:33 LAG2 18 0 34 33 +- 43 1 +- 34 7 7811 22 Oct 04 16:58 LAG1 12 0 36 32 +- 54 -7 +- 43 4 7811 22 Oct 04 17:37 LAG2 16 0 34 32 +- 45 6 +- 38 10 7811 22 Oct 04 20:36 LAG1 12 0 20 15 +- 53 -13 +- 57 8 7811 22 Oct 04 21:43 LAG2 13 0 20 19 +- 51 -7 +- 51 8 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 16 Oct 04 21:19 LAG2 10 0 48 72 +- 166 -15 +- 99 5 7824 19 Oct 04 19:16 LAG2 3 0 88 83 +- 251 -7 +- 369 1 7824 21 Oct 04 19:19 LAG2 5 0 56 55 +- 295 0 +- 183 7 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 16 Oct 04 13:19 LAG1 9 0 30 -1 +- 15 30 +- 16 8 7825 23 Oct 04 10:37 LAG1 23 0 2 0 +- 8 0 +- 5 2 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 16 Oct 04 07:51 LAG1 6 0 2 0 +- 36 -3 +- 45 1 7832 16 Oct 04 13:15 LAG2 2 0 2 32 +- 661 -27 +- 566 0 7832 16 Oct 04 14:24 LAG1 7 0 7 -8 +- 31 5 +- 33 2 7832 16 Oct 04 17:09 LAG2 6 0 13 -8 +- 157 -18 +- 133 1 7832 16 Oct 04 18:03 LAG1 10 0 14 -24 +- 71 5 +- 34 3 7832 16 Oct 04 21:19 LAG2 10 0 15 5 +- 59 -5 +- 38 7 7832 17 Oct 04 06:21 LAG1 7 0 27 -7 +- 85 11 +- 47 3 7832 17 Oct 04 15:03 LAG2 11 0 7 -9 +- 37 -3 +- 39 2 7832 17 Oct 04 16:29 LAG1 9 0 5 3 +- 22 2 +- 25 3 7832 17 Oct 04 19:21 LAG2 7 0 5 -36 +- 189 -20 +- 105 1 7832 17 Oct 04 20:01 LAG1 6 0 5 4 +- 37 -3 +- 71 2 7832 17 Oct 04 23:29 LAG2 9 0 19 18 +- 49 0 +- 54 4 7832 18 Oct 04 05:03 LAG1 7 0 15 18 +- 32 7 +- 29 2 7832 18 Oct 04 08:39 LAG1 8 0 19 -19 +- 23 2 +- 31 0 7832 18 Oct 04 09:25 LAG2 7 0 8 27 +- 95 -18 +- 69 3 7832 18 Oct 04 13:19 LAG2 8 0 7 -9 +- 36 8 +- 48 3 7832 18 Oct 04 15:05 LAG1 7 0 24 26 +- 59 1 +- 52 3 7832 18 Oct 04 17:21 LAG2 8 0 20 45 +- 119 18 +- 87 1 7832 18 Oct 04 18:47 LAG1 11 0 15 -21 +- 43 4 +- 26 2 7832 18 Oct 04 21:41 LAG2 11 0 9 -3 +- 21 -9 +- 26 5 7832 19 Oct 04 07:15 LAG1 4 0 5 1 +- 34 3 +- 18 1 7832 19 Oct 04 11:23 LAG2 7 0 21 -18 +- 43 -1 +- 21 5 7832 19 Oct 04 15:19 LAG2 8 0 6 20 +- 82 17 +- 75 3 7832 19 Oct 04 17:09 LAG1 15 0 6 4 +- 17 2 +- 12 3 7832 19 Oct 04 20:13 LAG2 4 0 4 5 +- 381 -5 +- 210 0 7832 20 Oct 04 13:24 LAG2 15 0 7 -6 +- 19 5 +- 18 2 7832 20 Oct 04 15:49 LAG1 10 0 15 5 +- 21 13 +- 19 4 7832 20 Oct 04 17:47 LAG2 11 0 7 7 +- 22 8 +- 34 3 7832 22 Oct 04 20:18 LAG1 4 0 5 5 +- 39 13 +- 140 2 7832 22 Oct 04 22:07 LAG2 7 0 6 -12 +- 56 -11 +- 62 3 7832 23 Oct 04 05:15 LAG1 6 0 7 5 +- 62 -1 +- 48 2 7832 23 Oct 04 08:53 LAG1 11 0 10 7 +- 24 3 +- 22 2 7832 23 Oct 04 11:59 LAG2 8 0 12 -26 +- 92 9 +- 56 3 7832 23 Oct 04 15:11 LAG1 14 0 8 10 +- 24 2 +- 16 2 7832 23 Oct 04 15:51 LAG2 8 0 5 -6 +- 93 -1 +- 81 2 7832 23 Oct 04 20:07 LAG2 7 0 10 -10 +- 121 -12 +- 73 1 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 16 Oct 04 10:29 LAG1 16 0 9 1 +- 38 -3 +- 28 8 7837 16 Oct 04 13:43 LAG2 12 0 9 5 +- 47 -5 +- 59 4 7837 16 Oct 04 14:09 LAG1 9 0 3 1 +- 68 1 +- 73 2 7837 16 Oct 04 17:45 LAG2 15 0 34 31 +- 39 -3 +- 45 12 7837 18 Oct 04 11:19 LAG1 11 0 8 -1 +- 46 -6 +- 43 4 7837 18 Oct 04 14:05 LAG2 4 0 9 2 +- 148 22 +- 311 3 7837 19 Oct 04 11:57 LAG2 10 0 9 -6 +- 64 -10 +- 90 7 7837 19 Oct 04 13:41 LAG1 7 0 7 -7 +- 156 2 +- 112 6 7837 20 Oct 04 09:59 LAG2 9 0 8 -4 +- 52 -3 +- 93 6 7837 20 Oct 04 12:21 LAG1 3 0 49 29 +- 414 15 +- 342 12 7837 21 Oct 04 11:05 LAG1 4 0 34 37 +- 682 -4 +- 355 19 7837 21 Oct 04 12:15 LAG2 13 0 10 -6 +- 42 -1 +- 56 8 7837 21 Oct 04 14:21 LAG1 8 0 8 5 +- 56 2 +- 73 5 7837 21 Oct 04 16:20 LAG2 10 0 14 13 +- 48 6 +- 62 2 7837 23 Oct 04 11:41 LAG1 11 0 23 7 +- 80 9 +- 49 5 7837 23 Oct 04 12:29 LAG2 21 0 11 9 +- 38 -5 +- 30 7 7837 23 Oct 04 15:19 LAG1 3 0 14 15 +- 367 -3 +- 719 0 7837 23 Oct 04 16:31 LAG2 22 0 37 32 +- 34 -13 +- 26 20 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 17 Oct 04 16:37 LAG1 25 0 9 6 +- 8 2 +- 4 1 7839 17 Oct 04 19:01 LAG2 18 0 3 1 +- 10 -1 +- 6 1 7839 17 Oct 04 20:09 LAG1 10 0 12 -2 +- 13 -6 +- 6 1 7839 17 Oct 04 23:09 LAG2 13 0 8 3 +- 11 5 +- 9 2 7839 18 Oct 04 08:19 LAG1 10 0 7 6 +- 17 0 +- 8 2 7839 18 Oct 04 11:50 LAG1 13 0 4 -3 +- 13 0 +- 7 1 7839 18 Oct 04 13:15 LAG2 12 0 6 -7 +- 15 4 +- 14 1 7839 18 Oct 04 18:41 LAG1 8 0 10 1 +- 42 -3 +- 20 1 7839 18 Oct 04 21:15 LAG2 9 0 7 9 +- 17 -3 +- 8 0 7839 18 Oct 04 22:33 LAG1 3 0 12 0 +- 24 -12 +- 23 0 7839 19 Oct 04 06:55 LAG1 6 0 15 8 +- 78 -3 +- 44 0 7839 20 Oct 04 09:14 LAG1 7 0 4 -9 +- 53 -3 +- 29 0 7839 20 Oct 04 12:49 LAG1 15 0 13 -6 +- 11 10 +- 8 1 7839 20 Oct 04 13:23 LAG2 13 0 11 1 +- 13 7 +- 9 0 7839 21 Oct 04 14:50 LAG1 18 0 6 5 +- 10 -3 +- 6 1 7839 23 Oct 04 11:51 LAG2 4 0 5 5 +- 21 0 +- 28 1 7839 23 Oct 04 12:15 LAG1 13 0 4 -3 +- 12 0 +- 8 1 7839 23 Oct 04 15:27 LAG1 13 0 7 2 +- 11 1 +- 5 5 7839 23 Oct 04 15:31 LAG2 14 0 7 3 +- 11 3 +- 6 2 7839 23 Oct 04 19:31 LAG1 3 0 8 10 +- 288 0 +- 144 0 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 19 Oct 04 17:31 LAG1 13 0 31 13 +- 11 17 +- 8 11 7841 19 Oct 04 19:35 LAG2 7 0 7 -2 +- 36 1 +- 33 6 7841 21 Oct 04 14:49 LAG1 16 0 5 -1 +- 10 2 +- 7 3 7841 21 Oct 04 15:27 LAG2 16 0 5 -3 +- 10 2 +- 8 2 7841 21 Oct 04 19:23 LAG2 20 0 8 1 +- 10 -3 +- 7 6 7841 21 Oct 04 22:01 LAG1 12 0 10 -9 +- 12 -7 +- 17 5 7841 21 Oct 04 23:29 LAG2 13 0 14 -4 +- 11 -5 +- 13 13 7841 22 Oct 04 17:53 LAG2 12 0 7 9 +- 28 -2 +- 18 4 7841 22 Oct 04 20:27 LAG1 13 1 10 11 +- 20 4 +- 14 7 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 20 Oct 04 21:21 LAG2 12 0 4 9 +- 41 6 +- 22 2 7941 23 Oct 04 08:39 LAG1 6 0 4 11 +- 52 4 +- 26 1 7941 23 Oct 04 11:53 LAG2 7 1 9 -3 +- 38 -3 +- 44 6 7941 23 Oct 04 15:51 LAG2 17 0 2 0 +- 18 0 +- 11 2 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 16 Oct 04 16:49 LAG2 9 0 7 -14 +- 40 -5 +- 26 2 8834 16 Oct 04 18:20 LAG1 1 0 32 0 +- 0 0 +- 0 0 8834 16 Oct 04 21:11 LAG2 8 0 1 -1 +- 17 0 +- 12 0 8834 16 Oct 04 21:53 LAG1 2 0 19 10 +- 72 -61 +- 442 0 8834 17 Oct 04 01:15 LAG2 6 0 13 -14 +- 41 2 +- 36 5 8834 17 Oct 04 14:59 LAG2 6 0 14 -12 +- 60 0 +- 44 2 8834 18 Oct 04 15:35 LAG1 10 0 7 -7 +- 17 2 +- 15 3 8834 18 Oct 04 19:02 LAG1 3 0 17 -14 +- 24 -7 +- 28 4 8834 18 Oct 04 21:07 LAG2 13 0 6 0 +- 11 0 +- 6 6 8834 18 Oct 04 23:01 LAG1 4 0 32 52 +- 259 -61 +- 188 1 8834 19 Oct 04 07:05 LAG1 3 0 13 -12 +- 222 0 +- 190 0 8834 19 Oct 04 10:43 LAG1 6 0 34 -37 +- 33 -4 +- 31 6 8834 19 Oct 04 23:30 LAG2 4 0 12 -13 +- 24 -5 +- 78 3 8834 21 Oct 04 14:49 LAG1 8 0 12 -21 +- 40 -7 +- 25 4 8834 21 Oct 04 18:17 LAG1 7 0 9 -6 +- 15 -4 +- 11 3 8834 21 Oct 04 19:41 LAG2 9 0 7 -6 +- 14 2 +- 18 3 8834 22 Oct 04 10:07 LAG1 12 0 16 -15 +- 12 -1 +- 8 4 8834 22 Oct 04 17:05 LAG1 14 0 12 3 +- 13 -8 +- 9 2 8834 22 Oct 04 17:41 LAG2 16 0 6 -5 +- 11 0 +- 9 3 8834 22 Oct 04 20:27 LAG1 6 0 10 -12 +- 19 -3 +- 13 2 8834 22 Oct 04 21:43 LAG2 12 0 17 -15 +- 12 -6 +- 10 2 8834 23 Oct 04 11:43 LAG2 5 0 8 -20 +- 75 -11 +- 68 0 8834 23 Oct 04 12:21 LAG1 4 0 13 -8 +- 38 7 +- 53 1 8834 23 Oct 04 15:41 LAG1 3 0 12 -47 +- 233 -23 +- 155 1 8834 23 Oct 04 15:49 LAG2 10 0 9 -9 +- 15 1 +- 17 1 8834 23 Oct 04 19:45 LAG2 13 0 9 2 +- 12 4 +- 11 8 8834 23 Oct 04 23:15 LAG1 2 0 21 -22 +- 561 0 +- 590 0 8834 23 Oct 04 23:47 LAG2 6 0 7 -12 +- 33 -9 +- 42 2 -------------------------------------------------------------------------------- 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 040314 - 041019 0/ 25/ 0 0/ 16/ 0 41 1831 LVIL 040815 - 041025 0/ 17/ 0 0/ 21/ 0 38 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 041021 0/154/ 0 0/ 81/ 0 235 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 041024 0/ 35/ 0 0/ 15/ 0 50 1884 RIGLAS 040310 - 041014 0/ 73/ 1 0/ 17/ 0 91 1893 CRMLAS 040331 - 041012 0/ 63/ 0 0/ 41/ 0 104 6405 TIGO 040103 - 041019 3/ 15/ 2 3/ 4/ 0 27 6810 ZIMLAT 040107 - 041024 173/209/ 29 139/137/ 17 704 7080 MLRS25 040104 - 041023 60/ 92/ 12 68/ 92/ 7 331 7090 ML0514 040101 - 041025 214/300/ 45 181/303/ 35 1078 7105 ML0725 040104 - 041008 20/101/ 8 5/ 98/ 9 241 7110 ML0414 040102 - 041023 104/222/ 20 114/156/ 22 638 7124 ML0819 040315 - 041002 0/ 33/ 0 0/ 16/ 0 49 7210 HOLLAS 040105 - 040607 33/ 49/ 3 50/ 52/ 6 193 7231 WUHA01 040408 - 041002 0/ 4/ 0 0/ 12/ 0 16 7237 CHALAS 040101 - 041024 0/333/ 6 0/226/ 2 567 7249 BEJLAS 040101 - 041022 0/220/ 1 0/185/ 0 406 7308 CRLLAS 040106 - 040311 5/ 47/ 0 0/ 38/ 2 92 7355 TROS02 040509 - 040829 0/ 82/ 0 0/ 34/ 0 116 7358 GMSL 040901 - 040901 0/ 1/ 0 0/ 1/ 0 2 7405 TIGO 040103 - 040823 0/ 12/ 2 0/ 4/ 0 18 7501 ML0616 040106 - 041002 53/ 50/ 18 85/138/ 14 358 7604 BREF 041017 - 041021 0/ 1/ 0 0/ 2/ 0 3 7806 METLAS 040720 - 041020 0/ 9/ 0 0/ 8/ 0 17 7810 ZIMLAT 040507 - 041024 189/125/ 25 123/ 84/ 18 564 7811 POLLAS 040105 - 041022 0/119/ 0 0/ 71/ 0 190 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 041021 0/132/ 0 0/ 99/ 1 232 7825 STL3 040807 - 041024 20/ 24/ 3 37/ 10/ 3 97 7830 FTLR** 030903 - 030903 0/ 0/ 0 0/ 1/ 0 1 7832 SALRO 040102 - 041025 139/315/ 25 201/307/ 38 1025 7835 GRASSE 040301 - 041013 1/ 69/ 3 0/ 39/ 1 113 7836 GFZLAS 040105 - 040701 0/ 38/ 0 0/ 21/ 1 60 7837 CHILAS 040102 - 041024 0/ 88/ 0 0/107/ 1 196 7838 SHOLAS 040105 - 041024 23/192/ 2 46/153/ 8 424 7839 AUSLAS 040107 - 041025 137/205/ 31 82/153/ 18 626 7840 RGOLAS 040102 - 040912 132/221/ 39 111/126/ 19 648 7841 GFZLA3 040112 - 041022 26/104/ 16 16/ 73/ 10 245 7845 GRASLL 040318 - 040920 13/ 27/ 0 11/ 14/ 1 66 7941 MLROnn 040111 - 041025 105/141/ 22 104/103/ 9 484 8834 WLRS01 040108 - 041025 233/211/ 43 180/163/ 22 852 -------------------------------------------------------------------------- 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. -------------------------------------------------------------- DATE X Y UT1-UTC (YYMMDD.D) (MAS) (MAS) (MS) -------------------------------------------------------------- 041017.0 205.4 +/- 0.2 392.6 +/- 0.2 -32518.87 +/- 0.02 041018.0 205.9 +/- 0.1 390.9 +/- 0.1 -32519.18 +/- 0.03 041019.0 206.7 +/- 0.1 388.4 +/- 0.1 -32519.32 +/- 0.05 041020.0 206.7 +/- 0.2 386.6 +/- 0.2 -32519.37 +/- 0.06 041021.0 206.0 +/- 0.2 384.8 +/- 0.2 -32519.55 +/- 0.06 041022.0 205.9 +/- 0.1 382.9 +/- 0.1 -32519.85 +/- 0.07 041023.0 206.0 +/- 0.1 381.0 +/- 0.1 -32520.39 +/- 0.08 -------------------------------------------------------------- D. COMMENTS 1. The analysis covered in this report is based on a new set of station coordinates: instead of the solution SSC(DUT)93L05, which was extrapolated over some 10 years beyond the epoch of the latest observations, the current analysis relies on the ITRF2000 solution. Tests performed during the last year show that the rms-of-fit that can be obtained when using ITRF2000 can be reduced to about 2 cm (instead of the 3+ cm which was achieved with the old model, for present-day epochs). Other model modifications are to be expected. We hope to serve the community with this development. 2. As of July 1, a new computation model and analysis strategy are in use: in terms of geometric modeling, models for ocean loading and atmospheric pressure loading have been turned on. The frequency of the solutions for the Earth Orientation Parameters has been increased to once per day (rather than once per 3 days). As a consequence, the arc length has been changed from 10 days to 8 days. Also, the empirical accelerations acting on the spacecraft are estimated twice per arc (i.e. for 4-day periods). To absorb (unmodeled) geocenter motion, 3 coefficients of the gravity field model are estimated: C(1,0), C(1,1) and S(1,1). Finally, the overall weighting scheme for the individual SLR observations is also modified slightly. 3. As of the same date, provisions for handling the dual-wavelength systems 7405 and 7810 properly have been installed. This is done by introducing dummy station ids 6405 and 6810 for the observations taken on 2nd wavelength. The specific analysis results are easily recognizable because the wavelength has been added to the printout of the station name. 4. As of July 7, 2004, similar provisions for handling the dual-wavelength system 7941 properly have been installed. This is done by introducing a dummy station id 6941 for the observations taken on 2nd wavelength. From: Ron Noomen ******************************************************************************** |