| Date: | 2004-10-19 07:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4433: Delft QL Report October 19, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-10-19 07:15:00 UTC Message No. 4433 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report October 19, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS October 19, 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 18, 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 18, 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 041013 - 041014 1 3 1831 Lviv, Ukraine 041012 - 041013 2 3 1884 Riga, Latvia 041012 - 041014 3 3 1893 Kazivili, Crimea, Ukraine 041012 - 041012 1 1 6810 Zimmerwald 846, Switzerland 041012 - 041016 8 5 7080 McDonald Obs., Fort Davis, TX 041014 - 041018 2 5 7090 Yarragadee, Australia 041011 - 041018 20 11 7110 Monument Peak, California 041012 - 041017 3 6 7237 Changchun, China 041007 - 041018 11 13 7249 Beijing, China 041011 - 041015 7 10 7806 Metsahovi, Finland 041012 - 041014 3 3 7810 Zimmerwald 423, Switzerland 041012 - 041016 8 5 7811 Borowiec, Poland 041011 - 041013 2 3 7824 San Fernando, Spain 041006 - 041016 3 6 7825 Mount Stromlo, Australia 041014 - 041016 1 1 7832 Riyad, Saudi Arabia 041011 - 041018 18 18 7835 Grasse, France 041013 - 041013 - 1 7837 Shanghai Observatory, China 041012 - 041018 6 8 7839 Graz, Austria 041008 - 041018 9 8 8834 Wettzell, Germany 041011 - 041018 16 14 ------ ------ --- --- TOTAL 041006 - 041018 124 127 ------------------------------------------------------------------------------ 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 9, 2004 to Sun, Oct 17, 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 20 21 Number of Passes 123/120 126/122 Number of Normal Points 1110/1087 1262/1239 Weighted RMS of Fit (mm) 13 13 ----------------------------------------------------------------------- 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 13 Oct 04 19:07 LAG2 3 0 1581 -2169 +-3309 462 +-2582 5 1824 13 Oct 04 22:55 LAG2 9 0 83 -25 +- 236 135 +- 358 27 1824 14 Oct 04 17:09 LAG2 4 0 182 240 +-1561 -68 +-1243 93 1824 14 Oct 04 17:17 LAG1 5 0 164 -237 +- 801 -74 +- 633 65 Station 1831 (Lviv) (position fixed, acc. 400 mm) 1831 12 Oct 04 16:49 LAG2 7 0 110 10 +-1381 73 +-1050 29 1831 12 Oct 04 19:58 LAG1 15 0 137 32 +- 314 -100 +- 248 20 1831 12 Oct 04 20:37 LAG2 14 0 131 103 +- 329 102 +- 320 16 1831 13 Oct 04 18:32 LAG1 9 0 228 -7 +-1040 -134 +- 596 12 1831 13 Oct 04 18:53 LAG2 12 0 99 -33 +- 545 100 +- 451 13 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 12 Oct 04 20:19 LAG1 7 0 19 -17 +- 207 0 +- 206 5 1884 12 Oct 04 20:52 LAG2 5 0 10 -25 +- 399 25 +- 395 5 1884 13 Oct 04 18:45 LAG1 10 0 14 -3 +- 96 -13 +- 98 6 1884 14 Oct 04 16:44 LAG2 17 0 10 -9 +- 72 1 +- 59 4 1884 14 Oct 04 17:19 LAG1 15 0 12 -10 +- 77 1 +- 54 6 1884 14 Oct 04 20:57 LAG2 9 0 17 -17 +- 107 1 +- 152 2 Station 1893 (Kazivili) (position fixed, acc. 100 mm) 1893 9 Oct 04 16:53 LAG1 11 0 23 -2 +- 144 1 +- 96 23 1893 9 Oct 04 18:25 LAG2 11 0 14 3 +- 96 -11 +- 121 11 1893 9 Oct 04 20:33 LAG1 4 0 90 238 +- 458 254 +- 437 17 1893 12 Oct 04 19:57 LAG1 10 0 53 -18 +- 109 17 +- 114 43 1893 12 Oct 04 20:40 LAG2 7 0 48 35 +- 306 8 +- 234 41 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 12 Oct 04 13:07 LAG1 4 0 32 -33 +- 812 0 +- 410 3 6810 13 Oct 04 00:29 LAG2 12 0 38 -41 +- 57 -15 +- 50 2 6810 13 Oct 04 12:13 LAG1 2 0 38 95 +-7180 -73 +-3941 0 6810 13 Oct 04 14:53 LAG2 9 0 10 -7 +- 303 -1 +- 156 1 6810 13 Oct 04 15:11 LAG1 15 0 22 -1 +- 47 -13 +- 30 5 6810 14 Oct 04 10:18 LAG1 9 0 40 -13 +- 122 12 +- 54 1 6810 14 Oct 04 21:23 LAG2 3 0 27 309 +-3274 -141 +-1383 3 6810 15 Oct 04 09:03 LAG1 9 0 27 -10 +- 64 13 +- 31 5 6810 15 Oct 04 23:09 LAG1 7 0 17 -7 +- 70 -27 +- 112 2 6810 16 Oct 04 11:25 LAG1 11 0 27 -25 +- 74 -1 +- 53 3 6810 16 Oct 04 12:47 LAG2 11 0 44 -38 +- 55 11 +- 49 20 6810 16 Oct 04 14:43 LAG1 10 0 21 -21 +- 64 0 +- 65 2 6810 16 Oct 04 16:43 LAG2 20 0 16 -15 +- 42 -7 +- 29 4 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 9 Oct 04 17:58 LAG1 7 0 8 -8 +- 26 -1 +- 33 0 7080 9 Oct 04 21:22 LAG2 15 0 13 10 +- 18 4 +- 14 1 7080 10 Oct 04 01:24 LAG2 18 0 8 7 +- 15 -1 +- 14 4 7080 10 Oct 04 04:01 LAG1 13 0 12 9 +- 18 -6 +- 12 3 7080 10 Oct 04 05:43 LAG2 14 0 14 -14 +- 19 -7 +- 20 3 7080 14 Oct 04 19:55 LAG2 8 0 9 9 +- 40 0 +- 45 0 7080 16 Oct 04 19:03 LAG1 13 0 4 -2 +- 29 -1 +- 18 1 7080 16 Oct 04 20:15 LAG2 15 0 8 8 +- 23 -8 +- 17 3 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 9 Oct 04 12:19 LAG1 9 0 11 -11 +- 14 0 +- 9 2 7090 9 Oct 04 16:09 LAG1 9 0 7 -5 +- 25 0 +- 12 4 7090 10 Oct 04 14:35 LAG1 9 0 4 0 +- 14 2 +- 7 1 7090 11 Oct 04 00:59 LAG1 2 0 13 -14 +- 353 0 +- 304 0 7090 11 Oct 04 17:03 LAG1 2 0 11 24 +- 435 -30 +- 374 0 7090 11 Oct 04 19:44 LAG2 3 0 1 13 +- 327 7 +- 182 0 7090 11 Oct 04 23:35 LAG1 6 0 28 -40 +- 40 10 +- 28 6 7090 12 Oct 04 12:08 LAG1 2 0 10 -2 +- 239 21 +- 390 0 7090 12 Oct 04 15:33 LAG1 10 0 5 -5 +- 18 4 +- 12 3 7090 12 Oct 04 18:03 LAG2 4 0 3 -3 +- 27 1 +- 24 1 7090 13 Oct 04 14:03 LAG1 16 0 15 -6 +- 12 -6 +- 6 2 7090 13 Oct 04 16:05 LAG2 12 0 8 -7 +- 12 3 +- 22 4 7090 13 Oct 04 17:25 LAG1 15 0 12 8 +- 10 -4 +- 7 6 7090 13 Oct 04 19:49 LAG2 29 0 9 -5 +- 7 -3 +- 4 3 7090 13 Oct 04 20:47 LAG1 12 0 21 -21 +- 12 0 +- 14 2 7090 14 Oct 04 00:27 LAG1 7 0 8 -41 +- 79 19 +- 37 3 7090 14 Oct 04 12:32 LAG1 17 0 8 -3 +- 10 5 +- 8 2 7090 14 Oct 04 16:11 LAG1 19 0 6 -6 +- 10 0 +- 6 2 7090 14 Oct 04 17:55 LAG2 12 0 7 -5 +- 38 0 +- 22 2 7090 14 Oct 04 22:15 LAG2 12 0 8 -8 +- 12 -4 +- 15 2 7090 14 Oct 04 22:55 LAG1 12 0 26 -27 +- 16 26 +- 12 1 7090 15 Oct 04 11:25 LAG1 9 0 3 -1 +- 17 5 +- 30 2 7090 15 Oct 04 14:43 LAG1 24 0 7 -5 +- 8 2 +- 4 2 7090 15 Oct 04 16:21 LAG2 15 0 9 5 +- 12 6 +- 14 2 7090 15 Oct 04 18:21 LAG1 10 0 7 6 +- 15 1 +- 19 2 7090 16 Oct 04 13:37 LAG1 11 0 4 -4 +- 17 0 +- 10 2 7090 16 Oct 04 16:49 LAG1 18 0 5 -2 +- 10 -2 +- 7 4 7090 16 Oct 04 18:05 LAG2 6 0 6 20 +- 344 11 +- 146 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 12 Oct 04 01:35 LAG2 16 0 6 -4 +- 10 3 +- 9 3 7110 12 Oct 04 04:47 LAG1 12 0 16 -12 +- 12 4 +- 7 3 7110 12 Oct 04 05:57 LAG2 13 0 10 -2 +- 13 -5 +- 9 5 7110 12 Oct 04 17:37 LAG1 6 0 7 -7 +- 51 0 +- 36 1 7110 13 Oct 04 07:15 LAG1 8 0 14 -22 +- 25 22 +- 33 5 7110 13 Oct 04 08:11 LAG2 7 0 64 -30 +- 19 -25 +- 11 3 7110 14 Oct 04 10:11 LAG2 7 0 19 -30 +- 31 -20 +- 44 1 7110 15 Oct 04 08:27 LAG2 4 0 53 -45 +- 31 -9 +- 29 3 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 9 Oct 04 09:45 LAG1 11 0 23 27 +- 83 -4 +- 51 6 7237 9 Oct 04 10:44 LAG2 17 0 20 17 +- 44 -15 +- 30 5 7237 10 Oct 04 11:35 LAG1 18 0 28 19 +- 36 10 +- 19 7 7237 10 Oct 04 12:57 LAG2 16 0 31 22 +- 39 -22 +- 33 6 7237 12 Oct 04 12:25 LAG1 13 0 28 10 +- 46 21 +- 32 8 7237 13 Oct 04 10:59 LAG1 17 0 20 11 +- 37 8 +- 19 7 7237 13 Oct 04 11:29 LAG2 9 0 37 10 +- 122 -25 +- 68 6 7237 13 Oct 04 14:47 LAG1 8 0 34 34 +- 55 -1 +- 83 8 7237 13 Oct 04 15:13 LAG2 6 0 41 23 +- 450 -9 +- 244 5 7237 14 Oct 04 09:39 LAG2 6 0 31 19 +- 448 -28 +- 249 3 7237 14 Oct 04 09:51 LAG1 14 0 28 -8 +- 50 20 +- 32 4 7237 14 Oct 04 13:15 LAG1 7 0 14 8 +- 61 8 +- 38 6 7237 14 Oct 04 13:23 LAG2 12 0 31 27 +- 44 -9 +- 32 8 7237 14 Oct 04 17:41 LAG2 8 0 21 24 +- 132 -3 +- 136 6 7237 15 Oct 04 11:21 LAG2 18 0 25 7 +- 36 -15 +- 28 16 7237 15 Oct 04 11:47 LAG1 15 0 28 10 +- 44 10 +- 22 6 7237 15 Oct 04 15:23 LAG2 19 0 17 9 +- 37 -6 +- 24 9 7237 16 Oct 04 10:24 LAG1 15 0 10 -1 +- 48 3 +- 28 6 7237 16 Oct 04 13:49 LAG2 7 0 12 9 +- 62 -16 +- 110 6 7237 16 Oct 04 14:18 LAG1 5 0 32 28 +- 89 9 +- 199 8 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 11 Oct 04 15:05 LAG2 13 0 14 -10 +- 43 3 +- 47 7 7249 12 Oct 04 12:21 LAG1 16 0 27 -2 +- 40 14 +- 22 8 7249 12 Oct 04 13:05 LAG2 17 0 11 -7 +- 37 -1 +- 31 8 7249 12 Oct 04 16:09 LAG1 12 0 13 -8 +- 44 10 +- 77 9 7249 12 Oct 04 17:08 LAG2 6 0 24 53 +- 289 22 +- 196 8 7249 13 Oct 04 10:57 LAG2 12 0 23 -39 +- 102 -34 +- 69 3 7249 13 Oct 04 11:21 LAG1 10 0 22 -30 +- 100 6 +- 61 7 7249 13 Oct 04 14:37 LAG1 15 0 14 -9 +- 39 -5 +- 34 9 7249 13 Oct 04 15:09 LAG2 13 0 15 -15 +- 90 -1 +- 58 8 7249 13 Oct 04 19:09 LAG2 7 0 37 15 +- 259 -16 +- 212 9 7249 14 Oct 04 13:05 LAG1 15 0 21 -13 +- 69 -7 +- 37 19 7249 14 Oct 04 13:33 LAG2 14 0 30 -7 +- 68 25 +- 52 11 7249 14 Oct 04 17:13 LAG2 16 0 17 2 +- 66 8 +- 45 14 7249 15 Oct 04 11:15 LAG2 17 0 24 7 +- 41 -16 +- 36 9 7249 15 Oct 04 11:49 LAG1 16 0 35 27 +- 41 -3 +- 26 20 7249 15 Oct 04 15:17 LAG2 14 0 15 18 +- 119 6 +- 64 12 7249 15 Oct 04 15:47 LAG1 7 0 18 -13 +- 165 -2 +- 167 8 Station 7806 (Metsahovi) (position fixed, acc. 30 mm) 7806 12 Oct 04 16:37 LAG1 6 0 13 -13 +- 54 -2 +- 69 5 7806 12 Oct 04 16:50 LAG2 5 0 7 9 +- 106 -2 +- 97 3 7806 12 Oct 04 20:25 LAG1 6 0 14 37 +- 119 -32 +- 97 7 7806 12 Oct 04 20:38 LAG2 15 0 7 4 +- 27 0 +- 24 6 7806 14 Oct 04 16:40 LAG2 7 0 1989 1995 +- 110 4 +- 74 5*CHK* 7806 14 Oct 04 17:19 LAG1 5 0 8 -7 +- 47 0 +- 28 4 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 12 Oct 04 13:07 LAG1 4 0 29 -12 +- 755 8 +- 385 3 7810 13 Oct 04 00:29 LAG2 11 0 28 -34 +- 67 -16 +- 61 1 7810 13 Oct 04 12:13 LAG1 2 0 23 343 +-7188 -201 +-3950 0 7810 13 Oct 04 14:54 LAG2 8 0 4 26 +- 390 -13 +- 195 1 7810 13 Oct 04 15:11 LAG1 14 0 23 5 +- 48 -14 +- 32 6 7810 14 Oct 04 10:18 LAG1 9 0 26 3 +- 122 12 +- 54 2 7810 14 Oct 04 21:23 LAG2 2 0 9 17 +-5028 -11 +-2161 0 7810 15 Oct 04 09:03 LAG1 9 0 25 -2 +- 63 13 +- 33 3 7810 15 Oct 04 23:11 LAG1 5 0 18 15 +- 83 -13 +- 167 4 7810 16 Oct 04 11:25 LAG1 10 0 8 -3 +- 73 -1 +- 58 6 7810 16 Oct 04 12:47 LAG2 11 0 57 -31 +- 55 22 +- 47 39 7810 16 Oct 04 14:43 LAG1 10 0 9 -8 +- 65 1 +- 65 1 7810 16 Oct 04 16:43 LAG2 20 0 14 1 +- 42 -9 +- 29 4 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 11 Oct 04 18:07 LAG1 5 0 12 11 +- 205 -2 +- 115 9 7811 11 Oct 04 18:27 LAG2 13 0 28 27 +- 52 2 +- 43 6 7811 13 Oct 04 18:35 LAG2 6 0 25 56 +- 406 20 +- 252 4 7811 13 Oct 04 18:47 LAG1 12 0 28 32 +- 62 -18 +- 47 7 7811 13 Oct 04 22:41 LAG2 13 0 12 5 +- 51 -5 +- 52 9 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 10 Oct 04 19:31 LAG1 3 0 61 73 +- 332 -12 +- 319 0 7824 11 Oct 04 22:53 LAG2 3 0 80 598 +- 961 -333 +- 604 6 7824 12 Oct 04 20:47 LAG2 6 0 63 62 +- 241 1 +- 204 4 7824 13 Oct 04 23:02 LAG2 1 0 68 0 +- 0 0 +- 0 0 7824 14 Oct 04 20:52 LAG2 6 0 67 68 +- 65 -3 +- 139 1 7824 15 Oct 04 00:57 LAG2 13 0 48 57 +- 43 -14 +- 36 3 7824 15 Oct 04 19:51 LAG1 5 0 41 88 +- 476 -21 +- 216 1 7824 15 Oct 04 23:05 LAG1 2 0 115 156 +- 839 45 +- 928 0 7824 16 Oct 04 21:19 LAG2 10 0 31 49 +- 166 -11 +- 99 5 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 9 Oct 04 01:51 LAG2 8 0 5 -8 +- 106 -4 +- 48 5 7825 9 Oct 04 12:18 LAG1 7 0 5 0 +- 16 1 +- 14 4 7825 9 Oct 04 15:39 LAG1 11 0 2 1 +- 17 2 +- 15 1 7825 9 Oct 04 22:45 LAG1 10 0 6 -18 +- 59 9 +- 25 3 7825 9 Oct 04 23:53 LAG2 8 0 10 -10 +- 18 0 +- 12 2 7825 10 Oct 04 04:03 LAG2 4 0 3 24 +- 260 11 +- 138 1 7825 14 Oct 04 22:53 LAG2 11 0 6 9 +- 30 -3 +- 21 4 7825 16 Oct 04 13:19 LAG1 9 0 101 -85 +- 15 31 +- 16 6*CHK* Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 9 Oct 04 00:41 LAG2 6 0 4 4 +- 26 2 +- 98 0 7832 9 Oct 04 06:47 LAG1 9 0 10 5 +- 23 -5 +- 21 4 7832 9 Oct 04 10:25 LAG2 4 0 6 -7 +- 166 10 +- 149 3 7832 9 Oct 04 14:13 LAG2 16 0 4 -2 +- 21 2 +- 17 3 7832 9 Oct 04 16:37 LAG1 11 0 6 1 +- 44 -2 +- 25 1 7832 9 Oct 04 18:21 LAG2 6 0 3 -3 +- 217 0 +- 148 1 7832 9 Oct 04 20:25 LAG1 8 0 7 -7 +- 27 0 +- 47 2 7832 9 Oct 04 22:31 LAG2 12 0 6 -5 +- 21 -3 +- 15 4 7832 10 Oct 04 05:23 LAG1 11 0 8 -1 +- 20 4 +- 13 4 7832 10 Oct 04 09:12 LAG1 5 0 1 -1 +- 152 1 +- 87 0 7832 10 Oct 04 12:13 LAG2 13 0 9 0 +- 18 -6 +- 14 3 7832 10 Oct 04 15:25 LAG1 11 0 6 4 +- 22 -2 +- 23 2 7832 10 Oct 04 16:19 LAG2 7 0 8 -35 +- 110 -30 +- 97 2 7832 10 Oct 04 19:09 LAG1 4 0 5 3 +- 94 2 +- 104 0 7832 10 Oct 04 20:37 LAG2 11 0 7 -14 +- 50 -12 +- 34 2 7832 11 Oct 04 07:37 LAG1 6 0 17 4 +- 28 7 +- 15 5 7832 11 Oct 04 14:25 LAG1 3 0 18 29 +- 224 -15 +- 322 1 7832 11 Oct 04 14:31 LAG2 16 0 7 -7 +- 26 7 +- 21 3 7832 11 Oct 04 17:47 LAG1 6 0 14 -25 +- 70 9 +- 52 1 7832 11 Oct 04 18:35 LAG2 8 0 4 3 +- 61 0 +- 41 2 7832 11 Oct 04 22:49 LAG2 9 0 20 -16 +- 22 -12 +- 16 2 7832 12 Oct 04 06:11 LAG1 12 0 7 -2 +- 19 5 +- 16 3 7832 12 Oct 04 12:27 LAG2 18 0 8 3 +- 18 -3 +- 11 7 7832 12 Oct 04 16:05 LAG1 6 0 5 18 +- 158 10 +- 78 2 7832 12 Oct 04 16:40 LAG2 7 0 10 -11 +- 62 -1 +- 82 2 7832 12 Oct 04 19:51 LAG1 7 0 16 14 +- 28 6 +- 48 1 7832 12 Oct 04 20:45 LAG2 10 0 15 -5 +- 24 -9 +- 13 1 7832 13 Oct 04 08:31 LAG1 11 0 8 -14 +- 35 9 +- 22 1 7832 13 Oct 04 10:55 LAG2 4 0 21 9 +- 295 -17 +- 175 0 7832 13 Oct 04 14:39 LAG2 7 0 7 -9 +- 45 -2 +- 66 1 7832 13 Oct 04 14:55 LAG1 8 0 31 25 +- 30 -9 +- 40 2 7832 13 Oct 04 18:15 LAG1 5 0 36 -17 +- 214 -25 +- 101 3 7832 15 Oct 04 23:21 LAG2 9 0 14 5 +- 28 -16 +- 45 1 7832 16 Oct 04 07:51 LAG1 6 0 10 -10 +- 36 0 +- 45 1 7832 16 Oct 04 13:15 LAG2 2 0 2 28 +- 661 -24 +- 566 0 7832 16 Oct 04 14:24 LAG1 7 0 6 5 +- 31 0 +- 33 2 7832 16 Oct 04 17:09 LAG2 6 0 15 -14 +- 157 -24 +- 133 1 7832 16 Oct 04 18:03 LAG1 10 0 19 -22 +- 71 1 +- 34 3 7832 16 Oct 04 21:19 LAG2 10 0 12 -8 +- 59 -10 +- 38 8 Station 7835 (Grasse) (position fixed, acc. 30 mm) 7835 13 Oct 04 18:31 LAG2 9 0 16 8 +- 63 -6 +- 53 3 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 9 Oct 04 14:55 LAG2 18 0 38 33 +- 36 0 +- 31 17 7837 9 Oct 04 19:11 LAG2 7 0 55 41 +- 93 24 +- 162 16 7837 10 Oct 04 11:41 LAG1 11 0 8 2 +- 48 -6 +- 44 4 7837 10 Oct 04 13:01 LAG2 12 0 20 18 +- 48 -15 +- 66 9 7837 12 Oct 04 12:13 LAG1 11 0 31 44 +- 71 19 +- 34 12 7837 12 Oct 04 13:15 LAG2 18 0 29 29 +- 43 -5 +- 36 12 7837 12 Oct 04 17:41 LAG2 9 0 42 130 +- 220 -60 +- 132 14 7837 13 Oct 04 11:27 LAG2 9 0 11 24 +- 145 -23 +- 128 6 7837 13 Oct 04 14:45 LAG1 8 0 11 15 +- 81 -10 +- 98 3 7837 13 Oct 04 15:25 LAG2 5 0 55 116 +- 352 50 +- 271 13 7837 15 Oct 04 11:33 LAG2 8 0 20 -17 +- 54 -2 +- 124 10 7837 15 Oct 04 12:07 LAG1 7 0 4 -5 +- 192 0 +- 108 2 7837 16 Oct 04 10:29 LAG1 16 0 17 -12 +- 38 -4 +- 28 8 7837 16 Oct 04 13:43 LAG2 12 0 17 15 +- 47 -3 +- 59 4 7837 16 Oct 04 14:09 LAG1 9 0 9 10 +- 68 -3 +- 73 2 7837 16 Oct 04 17:45 LAG2 15 0 32 29 +- 39 -3 +- 45 12 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 9 Oct 04 00:03 LAG2 17 0 1 0 +- 10 0 +- 8 0 7839 12 Oct 04 16:17 LAG2 6 0 5 10 +- 32 6 +- 20 0 7839 12 Oct 04 16:29 LAG1 9 0 15 10 +- 20 2 +- 9 3 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 9 Oct 04 20:45 LAG1 10 0 6 0 +- 13 0 +- 16 6 7841 9 Oct 04 22:07 LAG2 14 0 4 0 +- 15 0 +- 11 4 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 10 Oct 04 15:53 LAG1 6 0 23 -23 +- 18 -6 +- 30 5 8834 10 Oct 04 16:07 LAG2 9 0 12 -13 +- 15 -2 +- 11 3 8834 10 Oct 04 19:15 LAG1 7 0 9 -8 +- 21 -10 +- 17 2 8834 10 Oct 04 20:52 LAG2 5 0 10 -57 +- 295 21 +- 132 6 8834 11 Oct 04 00:39 LAG2 4 0 18 0 +- 87 -20 +- 102 3 8834 11 Oct 04 11:07 LAG1 15 0 12 -10 +- 15 0 +- 8 6 8834 11 Oct 04 14:19 LAG2 7 0 13 -15 +- 43 -1 +- 35 2 8834 11 Oct 04 14:37 LAG1 3 0 9 -6 +- 25 -5 +- 34 1 8834 11 Oct 04 17:47 LAG1 5 0 4 4 +- 179 2 +- 79 4 8834 11 Oct 04 18:11 LAG2 27 0 14 -14 +- 8 2 +- 4 3 8834 11 Oct 04 22:30 LAG2 3 0 8 -9 +- 157 0 +- 127 1 8834 12 Oct 04 06:07 LAG1 3 0 9 -9 +- 25 1 +- 197 0 8834 12 Oct 04 09:35 LAG1 8 0 25 5 +- 22 21 +- 16 3 8834 12 Oct 04 16:15 LAG2 14 0 14 -9 +- 14 4 +- 9 3 8834 12 Oct 04 20:45 LAG2 5 0 9 -2 +- 22 -13 +- 39 2 8834 13 Oct 04 00:49 LAG2 3 0 59 -58 +- 65 0 +- 161 1 8834 13 Oct 04 08:07 LAG1 6 0 8 4 +- 18 4 +- 11 4 8834 13 Oct 04 11:57 LAG1 10 0 13 -4 +- 18 -7 +- 14 2 8834 13 Oct 04 14:24 LAG2 18 0 8 3 +- 10 5 +- 7 5 8834 13 Oct 04 15:21 LAG1 3 0 9 -1 +- 66 -22 +- 132 1 8834 13 Oct 04 18:29 LAG2 11 0 11 -10 +- 12 -3 +- 6 3 8834 13 Oct 04 18:45 LAG1 9 0 19 -6 +- 14 -16 +- 13 2 8834 13 Oct 04 22:23 LAG1 5 0 6 0 +- 35 -11 +- 73 2 8834 14 Oct 04 13:59 LAG1 2 0 0 -8 +- 377 -7 +- 350 0 8834 14 Oct 04 16:52 LAG2 2 0 11 -10 +- 46 7 +- 284 0 8834 15 Oct 04 14:45 LAG2 6 0 12 -3 +- 30 6 +- 23 5 8834 15 Oct 04 16:05 LAG1 9 0 7 1 +- 14 0 +- 13 7 8834 16 Oct 04 16:49 LAG2 9 0 7 -20 +- 40 -10 +- 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 8 -8 +- 17 1 +- 12 1 8834 16 Oct 04 21:53 LAG1 2 0 34 23 +- 72 -72 +- 442 0 -------------------------------------------------------------------------------- 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 - 041014 0/ 24/ 0 0/ 16/ 0 40 1831 LVIL 040815 - 041013 0/ 16/ 0 0/ 19/ 0 35 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 041008 0/150/ 0 0/ 77/ 0 227 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 040813 0/ 33/ 0 0/ 15/ 0 48 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 - 040924 2/ 15/ 2 3/ 4/ 0 26 6810 ZIMLAT 040107 - 041016 168/204/ 28 138/132/ 17 687 7080 MLRS25 040104 - 041018 59/ 90/ 12 67/ 86/ 7 321 7090 ML0514 040101 - 041018 212/293/ 45 179/298/ 35 1062 7105 ML0725 040104 - 041008 20/101/ 8 5/ 98/ 9 241 7110 ML0414 040102 - 041017 104/221/ 20 114/155/ 22 636 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 - 041018 0/328/ 6 0/220/ 2 556 7249 BEJLAS 040101 - 041015 0/214/ 1 0/179/ 0 394 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 7806 METLAS 040720 - 041014 0/ 8/ 0 0/ 9/ 0 17 7810 ZIMLAT 040507 - 041016 183/120/ 24 122/ 79/ 18 546 7811 POLLAS 040105 - 041013 0/115/ 0 0/ 68/ 0 183 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 041016 0/132/ 0 0/ 97/ 1 230 7825 STL3 040807 - 041016 18/ 16/ 3 36/ 8/ 3 84 7830 FTLR** 030903 - 030903 0/ 0/ 0 0/ 1/ 0 1 7832 SALRO 040102 - 041018 133/308/ 25 195/297/ 38 996 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 - 041018 0/ 81/ 0 0/ 99/ 1 181 7838 SHOLAS 040105 - 041006 23/191/ 2 46/152/ 8 422 7839 AUSLAS 040107 - 041018 125/200/ 31 76/150/ 18 600 7840 RGOLAS 040102 - 040912 132/221/ 39 111/126/ 19 648 7841 GFZLA3 040112 - 041009 25/101/ 16 15/ 69/ 10 236 7845 GRASLL 040318 - 040920 13/ 27/ 0 11/ 14/ 1 66 7941 MLROnn 040111 - 040802 102/141/ 22 102/102/ 9 478 8834 WLRS01 040108 - 041018 222/204/ 41 176/154/ 22 819 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 041010.0 203.8 +/- 0.2 410.0 +/- 0.1 -32512.60 +/- 0.02 041011.0 202.6 +/- 0.2 407.8 +/- 0.2 -32513.28 +/- 0.04 041012.0 203.3 +/- 0.1 405.1 +/- 0.1 -32514.14 +/- 0.06 041013.0 203.4 +/- 0.1 403.8 +/- 0.1 -32515.21 +/- 0.07 041014.0 203.8 +/- 0.1 400.6 +/- 0.1 -32516.34 +/- 0.07 041015.0 204.7 +/- 0.2 397.5 +/- 0.2 -32517.34 +/- 0.08 041016.0 205.3 +/- 0.2 395.0 +/- 0.2 -32518.20 +/- 0.09 -------------------------------------------------------------- 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 ******************************************************************************** |