| Date: | 2005-04-21 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 5236: Delft QL Report April 21, 2005 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2005-04-21 13:15:00 UTC Message No. 5236 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report April 21, 2005 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS April 21, 2005 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 Thu, Apr 21, 2005. 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 Thu, Apr 21, 2005. 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) 050419 - 050419 1 2 1884 Riga, Latvia 050419 - 050419 - 2 6405 Concepcion, Chile (TIGO 847) 050420 - 050421 1 2 7080 McDonald Obs., Fort Davis, TX 050420 - 050420 - 1 7090 Yarragadee, Australia 050419 - 050420 4 2 7105 Greenbelt, Maryland 050420 - 050420 - 1 7405 Concepcion, Chile (TIGO 424) 050419 - 050420 2 - 7811 Borowiec, Poland 050419 - 050421 2 4 7824 San Fernando, Spain 050419 - 050421 2 5 7825 Mount Stromlo, Australia 050419 - 050420 8 6 7832 Riyad, Saudi Arabia 050419 - 050420 3 6 7835 Grasse, France 050419 - 050421 1 2 7838 Simosato Observatory, Japan 050419 - 050419 - 1 7839 Graz, Austria 050415 - 050415 - 1 7840 Herstmonceux, United Kingdom 050419 - 050420 6 4 7841 Potsdam, Germany 050420 - 050421 3 2 7941 Matera, Italy (MLRO 532) 050419 - 050419 - 3 8834 Wettzell, Germany 050420 - 050421 3 2 ------ ------ --- --- TOTAL 050415 - 050421 36 46 ------------------------------------------------------------------------------ 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 Wed, Apr 13, 2005 to Thu, Apr 21, 2005. 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 23 25 Number of Passes 145/145 168/167 Number of Normal Points 1682/1667 2037/2026 Weighted RMS of Fit (mm) 13 14 ----------------------------------------------------------------------- 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 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 13 Apr 05 17:17 LAG2 12 0 18 5 +- 183 0 +- 155 18 1864 14 Apr 05 19:33 LAG2 9 0 48 -42 +- 201 22 +- 172 13 1864 14 Apr 05 20:53 LAG1 12 0 39 14 +- 173 21 +- 115 20 1864 16 Apr 05 15:45 LAG2 7 0 27 33 +- 291 -18 +- 275 9 1864 16 Apr 05 19:47 LAG2 7 0 22 -15 +- 227 8 +- 192 12 1864 16 Apr 05 21:39 LAG1 11 0 23 19 +- 181 3 +- 95 11 1864 17 Apr 05 17:53 LAG2 8 0 14 -3 +- 247 8 +- 179 9 1864 19 Apr 05 17:59 LAG2 8 0 30 -9 +- 212 -12 +- 169 23 1864 19 Apr 05 21:09 LAG1 10 0 14 6 +- 193 0 +- 132 12 1864 19 Apr 05 22:05 LAG2 11 0 37 -29 +- 187 8 +- 124 13 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 13 Apr 05 21:09 LAG2 1 0 134 0 +- 0 0 +- 0 0 1873 15 Apr 05 00:49 LAG1 2 0 137 152 +- 791 -11 +- 502 0 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 14 Apr 05 19:13 LAG2 13 0 8 2 +- 95 -4 +- 80 5 1884 14 Apr 05 23:13 LAG2 15 0 15 2 +- 78 6 +- 45 9 1884 15 Apr 05 00:27 LAG1 15 0 15 0 +- 77 8 +- 59 9 1884 15 Apr 05 21:21 LAG2 16 0 7 0 +- 75 1 +- 57 6 1884 19 Apr 05 17:55 LAG2 9 0 86 -79 +- 120 -11 +- 109 7 1884 19 Apr 05 21:53 LAG2 13 0 12 -12 +- 84 1 +- 77 3 Station 6405 (Concepcion) (position solved, acc. 20 mm) 6405 20 Apr 05 18:29 LAG2 17 0 4 0 +- 16 1 +- 12 4 6405 20 Apr 05 22:37 LAG2 8 0 7 1 +- 30 -5 +- 45 5 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 13 Apr 05 20:49 LAG2 23 0 23 -22 +- 39 0 +- 21 3 6810 14 Apr 05 00:57 LAG2 19 0 20 -19 +- 41 -2 +- 25 4 6810 14 Apr 05 01:53 LAG1 11 0 17 -9 +- 82 5 +- 46 3 6810 14 Apr 05 08:55 LAG1 14 0 22 -20 +- 52 -2 +- 34 1 6810 14 Apr 05 12:44 LAG1 9 0 49 -2 +- 310 -20 +- 135 3 6810 14 Apr 05 18:55 LAG2 25 0 11 -9 +- 36 -3 +- 19 4 6810 14 Apr 05 23:03 LAG2 20 0 27 -25 +- 40 5 +- 25 4 6810 15 Apr 05 00:28 LAG1 10 0 22 -6 +- 68 12 +- 47 4 6810 15 Apr 05 07:43 LAG1 8 0 14 -14 +- 71 0 +- 90 4 6810 15 Apr 05 10:50 LAG1 5 0 10 -13 +- 145 -5 +- 68 6 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 13 Apr 05 06:53 LAG2 4 0 16 71 +- 699 -44 +- 359 6 7080 13 Apr 05 07:28 LAG1 17 0 15 14 +- 16 -3 +- 12 7 7080 13 Apr 05 10:34 LAG2 17 0 8 -3 +- 16 4 +- 12 5 7080 13 Apr 05 11:23 LAG1 7 0 14 58 +- 165 -30 +- 72 2 7080 14 Apr 05 08:39 LAG2 6 0 16 -9 +- 64 8 +- 76 2 7080 20 Apr 05 05:07 LAG2 14 0 16 -13 +- 18 -3 +- 16 4 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 13 Apr 05 00:39 LAG2 4 0 8 8 +- 64 0 +- 62 1 7090 13 Apr 05 04:51 LAG2 2 0 25 -16 +- 37 120 +- 382 0 7090 13 Apr 05 08:47 LAG2 10 0 9 -15 +- 31 -6 +- 21 3 7090 13 Apr 05 09:07 LAG1 14 0 14 11 +- 12 -11 +- 10 1 7090 13 Apr 05 12:23 LAG1 11 0 11 11 +- 12 0 +- 17 2 7090 13 Apr 05 15:39 LAG1 19 0 14 -14 +- 10 6 +- 6 2 7090 13 Apr 05 19:03 LAG1 19 0 6 3 +- 10 4 +- 7 2 7090 13 Apr 05 22:13 LAG2 15 0 9 8 +- 19 6 +- 13 7 7090 14 Apr 05 06:47 LAG2 20 0 12 -11 +- 9 1 +- 7 5 7090 14 Apr 05 07:43 LAG1 14 0 15 -12 +- 11 -4 +- 7 4 7090 14 Apr 05 10:53 LAG2 20 0 6 5 +- 9 -2 +- 7 1 7090 14 Apr 05 14:17 LAG1 13 0 12 9 +- 11 4 +- 7 5 7090 14 Apr 05 17:39 LAG1 20 0 35 -15 +- 9 15 +- 5 4 7090 14 Apr 05 20:33 LAG2 18 0 14 -6 +- 9 15 +- 11 2 7090 15 Apr 05 09:07 LAG2 7 0 14 -19 +- 32 -6 +- 32 1 7090 15 Apr 05 13:11 LAG1 11 0 6 0 +- 14 2 +- 17 6 7090 15 Apr 05 16:25 LAG1 16 0 17 -12 +- 10 7 +- 5 4 7090 15 Apr 05 19:59 LAG1 14 0 12 11 +- 11 9 +- 13 2 7090 15 Apr 05 22:35 LAG2 17 0 9 9 +- 10 0 +- 9 2 7090 16 Apr 05 05:09 LAG1 8 0 20 -21 +- 16 2 +- 23 2 7090 16 Apr 05 08:31 LAG1 13 0 9 -8 +- 11 -4 +- 10 1 7090 16 Apr 05 11:05 LAG2 19 0 7 6 +- 9 4 +- 9 1 7090 16 Apr 05 11:53 LAG1 7 0 12 -13 +- 19 -1 +- 35 2 7090 16 Apr 05 14:57 LAG1 17 0 11 -10 +- 10 0 +- 6 2 7090 16 Apr 05 18:27 LAG1 18 0 12 -3 +- 9 6 +- 5 4 7090 16 Apr 05 20:45 LAG2 17 0 19 -16 +- 10 9 +- 11 2 7090 17 Apr 05 09:21 LAG2 17 0 7 -7 +- 11 0 +- 8 2 7090 17 Apr 05 10:37 LAG1 13 0 1 0 +- 12 0 +- 13 1 7090 17 Apr 05 13:49 LAG1 13 0 6 -3 +- 11 -5 +- 12 1 7090 17 Apr 05 17:05 LAG1 18 0 16 -9 +- 9 5 +- 4 4 7090 17 Apr 05 22:57 LAG2 6 0 9 6 +- 36 -3 +- 42 1 7090 18 Apr 05 11:27 LAG2 15 0 5 -3 +- 11 6 +- 14 1 7090 18 Apr 05 12:39 LAG1 7 0 6 5 +- 15 8 +- 33 1 7090 18 Apr 05 15:41 LAG1 14 0 12 -5 +- 11 5 +- 5 3 7090 18 Apr 05 19:25 LAG1 14 0 7 -2 +- 11 5 +- 9 3 7090 18 Apr 05 20:53 LAG2 24 0 14 -7 +- 8 9 +- 6 2 7090 19 Apr 05 08:01 LAG1 11 0 6 0 +- 12 3 +- 12 5 7090 19 Apr 05 09:35 LAG2 17 0 6 2 +- 11 3 +- 8 2 7090 19 Apr 05 11:37 LAG1 3 0 18 -13 +- 175 -5 +- 165 0 7090 19 Apr 05 14:25 LAG1 14 0 9 -8 +- 11 1 +- 8 2 7090 19 Apr 05 17:55 LAG1 21 0 9 -5 +- 9 4 +- 4 3 7090 19 Apr 05 22:59 LAG2 10 0 10 -3 +- 13 -4 +- 8 5 7090 20 Apr 05 03:23 LAG2 13 0 8 -1 +- 11 -7 +- 17 6 7090 20 Apr 05 06:35 LAG1 14 0 13 -14 +- 11 -1 +- 8 2 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 16 Apr 05 00:43 LAG2 15 0 12 5 +- 11 -7 +- 6 1 7105 19 Apr 05 03:03 LAG2 21 0 18 -17 +- 9 -2 +- 6 2 7105 20 Apr 05 01:13 LAG2 7 0 17 -6 +- 16 -10 +- 11 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 13 Apr 05 06:15 LAG2 2 0 5 3 +- 396 7 +- 328 0 7110 13 Apr 05 14:33 LAG2 13 0 11 -11 +- 12 8 +- 11 2 7110 14 Apr 05 08:18 LAG2 6 0 15 -11 +- 18 6 +- 14 2 7110 14 Apr 05 09:33 LAG1 14 0 17 0 +- 12 -7 +- 5 5 7110 14 Apr 05 12:29 LAG2 3 0 16 51 +- 642 30 +- 288 0 7110 14 Apr 05 13:17 LAG1 5 0 10 7 +- 19 -11 +- 43 1 7110 14 Apr 05 20:07 LAG1 3 0 6 -1 +- 133 7 +- 116 1 7110 15 Apr 05 06:17 LAG2 6 0 12 -4 +- 67 3 +- 37 5 7110 15 Apr 05 08:27 LAG1 13 0 13 17 +- 17 -4 +- 12 2 7110 15 Apr 05 10:43 LAG2 9 0 9 -3 +- 14 5 +- 9 3 7110 15 Apr 05 11:44 LAG1 15 0 17 -1 +- 11 -10 +- 7 6 7110 16 Apr 05 04:56 LAG2 1 0 37 0 +- 0 0 +- 0 0 7110 16 Apr 05 08:35 LAG2 9 0 18 -10 +- 14 7 +- 9 5 7110 16 Apr 05 10:31 LAG1 7 0 14 4 +- 29 -8 +- 24 1 7110 16 Apr 05 12:49 LAG2 8 1 9 -8 +- 16 2 +- 9 3 7110 16 Apr 05 13:59 LAG1 7 0 15 8 +- 17 -15 +- 29 2 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 14 Apr 05 17:05 LAG1 16 0 17 -3 +- 38 10 +- 24 7 7237 15 Apr 05 14:15 LAG2 2 0 1 13 +-1663 -9 +-1090 0 7237 15 Apr 05 15:53 LAG1 4 0 34 -34 +- 80 -9 +- 298 1 7237 15 Apr 05 18:13 LAG2 6 0 10 15 +- 96 -14 +- 105 2 7237 15 Apr 05 19:21 LAG1 11 0 33 28 +- 48 5 +- 30 8 7237 16 Apr 05 11:59 LAG2 5 0 4 0 +- 179 -2 +- 172 3 7237 16 Apr 05 16:09 LAG2 12 0 18 15 +- 48 -16 +- 48 5 7237 16 Apr 05 18:14 LAG1 4 0 15 7 +- 310 3 +- 196 9 7237 17 Apr 05 18:10 LAG2 7 0 40 23 +- 196 -10 +- 127 8 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 13 Apr 05 18:09 LAG2 4 0 6 -70 +- 846 37 +- 468 1 7249 14 Apr 05 19:49 LAG2 15 0 12 0 +- 39 1 +- 27 12 7249 14 Apr 05 20:50 LAG1 3 0 9 19 +- 201 18 +- 296 1 Station 7405 (Concepcion) (position solved, acc. 20 mm) 7405 16 Apr 05 03:51 LAG1 7 0 2 -1 +- 68 -1 +- 45 2 7405 19 Apr 05 19:23 LAG1 4 0 7 -4 +- 65 4 +- 105 0 7405 20 Apr 05 02:01 LAG1 4 0 6 8 +- 159 1 +- 115 2 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 13 Apr 05 00:23 LAG1 15 0 11 5 +- 11 4 +- 6 4 7501 13 Apr 05 04:07 LAG2 2 0 52 44 +- 87 19 +- 204 0 7501 18 Apr 05 06:32 LAG2 13 0 11 -12 +- 13 9 +- 14 1 7501 18 Apr 05 11:08 LAG2 5 2 40 -127 +- 94 230 +- 149 6 7501 18 Apr 05 23:11 LAG1 23 0 14 10 +- 9 2 +- 4 5 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 13 Apr 05 20:48 LAG2 21 0 12 -12 +- 40 0 +- 22 3 7810 14 Apr 05 00:57 LAG2 22 0 17 -13 +- 39 -3 +- 22 6 7810 14 Apr 05 01:53 LAG1 12 0 14 -5 +- 72 5 +- 43 2 7810 14 Apr 05 23:03 LAG2 19 0 14 -11 +- 42 4 +- 25 3 7810 15 Apr 05 00:33 LAG1 11 0 16 7 +- 59 12 +- 42 3 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 19 Apr 05 02:09 LAG1 15 0 12 8 +- 47 2 +- 31 8 7811 19 Apr 05 21:47 LAG2 13 0 31 29 +- 51 0 +- 41 10 7811 20 Apr 05 00:47 LAG1 12 0 26 24 +- 53 0 +- 40 9 7811 20 Apr 05 01:53 LAG2 14 0 20 18 +- 50 -6 +- 45 8 7811 20 Apr 05 19:59 LAG2 13 0 46 49 +- 61 -6 +- 49 7 7811 20 Apr 05 23:22 LAG1 13 0 13 -3 +- 50 11 +- 52 7 7811 20 Apr 05 23:57 LAG2 2 0 39 92 +-1836 32 +-1119 0 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 13 Apr 05 02:59 LAG2 3 0 32 73 +-1033 24 +- 606 2 7824 13 Apr 05 21:13 LAG2 6 0 29 48 +- 300 -10 +- 164 0 7824 14 Apr 05 22:57 LAG2 3 0 18 54 +-1282 19 +- 681 2 7824 19 Apr 05 06:10 LAG1 4 0 59 67 +- 341 -5 +- 234 3 7824 19 Apr 05 21:55 LAG2 9 0 40 63 +- 192 -12 +- 102 3 7824 20 Apr 05 00:59 LAG1 7 0 47 62 +- 108 13 +- 88 1 7824 20 Apr 05 02:00 LAG2 10 0 35 57 +- 95 -16 +- 60 3 7824 20 Apr 05 19:37 LAG2 2 0 63 123 +-1852 33 +-1034 0 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 13 Apr 05 00:35 LAG2 16 0 16 11 +- 12 -6 +- 11 4 7825 13 Apr 05 04:55 LAG2 15 0 4 -2 +- 11 -1 +- 10 4 7825 13 Apr 05 05:25 LAG1 13 0 8 -7 +- 11 -2 +- 9 1 7825 13 Apr 05 08:59 LAG1 8 0 12 4 +- 27 -15 +- 26 2 7825 13 Apr 05 09:15 LAG2 8 0 3 6 +- 44 -4 +- 38 2 7825 13 Apr 05 12:01 LAG1 14 0 11 -7 +- 11 -5 +- 7 4 7825 13 Apr 05 15:25 LAG1 24 0 15 -14 +- 8 0 +- 4 5 7825 13 Apr 05 18:53 LAG2 11 0 13 -16 +- 16 12 +- 23 2 7825 14 Apr 05 04:03 LAG1 11 0 21 -14 +- 13 -2 +- 12 16 7825 15 Apr 05 05:13 LAG2 4 4 0 0 +- 0 0 +- 0 0 7825 15 Apr 05 06:29 LAG1 4 0 5 -9 +- 112 4 +- 77 3 7825 15 Apr 05 09:36 LAG1 7 0 8 4 +- 17 -5 +- 19 6 7825 15 Apr 05 13:01 LAG1 1 0 7 0 +- 0 0 +- 0 0 7825 16 Apr 05 14:49 LAG1 18 0 17 -6 +- 10 -7 +- 4 7 7825 16 Apr 05 20:52 LAG2 7 0 7 11 +- 33 8 +- 23 4 7825 17 Apr 05 01:15 LAG2 15 0 13 9 +- 11 -9 +- 11 8 7825 17 Apr 05 03:19 LAG1 21 0 4 -3 +- 9 0 +- 5 3 7825 17 Apr 05 05:21 LAG2 15 0 11 1 +- 11 -4 +- 6 7 7825 17 Apr 05 06:57 LAG1 10 0 3 1 +- 13 1 +- 10 2 7825 17 Apr 05 10:15 LAG1 14 0 7 5 +- 11 -4 +- 10 1 7825 17 Apr 05 13:31 LAG1 22 0 15 -3 +- 8 -7 +- 4 3 7825 17 Apr 05 17:27 LAG1 4 0 15 -13 +- 66 -2 +- 105 2 7825 17 Apr 05 19:01 LAG2 21 0 8 6 +- 9 1 +- 7 4 7825 17 Apr 05 23:12 LAG2 4 1 24 19 +- 28 -10 +- 35 2 7825 18 Apr 05 02:03 LAG1 10 0 7 7 +- 13 -1 +- 10 2 7825 18 Apr 05 03:21 LAG2 23 0 16 6 +- 8 -10 +- 6 3 7825 18 Apr 05 05:37 LAG1 14 0 5 -1 +- 11 3 +- 8 1 7825 18 Apr 05 07:25 LAG2 19 0 4 2 +- 9 -1 +- 7 1 7825 18 Apr 05 09:01 LAG1 13 0 7 6 +- 11 -2 +- 12 3 7825 18 Apr 05 12:12 LAG1 12 0 5 -1 +- 12 -1 +- 8 5 7825 18 Apr 05 15:39 LAG1 18 0 7 -4 +- 10 -2 +- 5 4 7825 18 Apr 05 21:09 LAG2 12 0 5 5 +- 13 1 +- 8 3 7825 19 Apr 05 01:19 LAG2 20 0 8 6 +- 9 -5 +- 7 2 7825 19 Apr 05 04:11 LAG1 15 0 10 8 +- 11 3 +- 7 5 7825 19 Apr 05 05:35 LAG2 21 0 15 15 +- 9 0 +- 5 2 7825 19 Apr 05 07:41 LAG1 16 0 6 5 +- 10 -1 +- 8 3 7825 19 Apr 05 11:05 LAG1 5 0 5 -10 +- 34 -14 +- 52 1 7825 19 Apr 05 14:17 LAG1 17 0 15 -9 +- 10 -5 +- 4 2 7825 19 Apr 05 19:17 LAG2 22 0 6 -5 +- 9 3 +- 7 2 7825 20 Apr 05 02:45 LAG1 17 0 10 -7 +- 11 -7 +- 8 2 7825 20 Apr 05 03:41 LAG2 22 0 9 4 +- 9 -6 +- 6 1 7825 20 Apr 05 06:17 LAG1 13 0 2 0 +- 11 0 +- 6 2 7825 20 Apr 05 07:39 LAG2 20 0 11 -8 +- 9 6 +- 7 1 7825 20 Apr 05 09:45 LAG1 13 0 3 -3 +- 11 0 +- 12 1 7825 20 Apr 05 12:57 LAG1 3 0 4 -109 +- 878 -41 +- 341 0 7825 20 Apr 05 21:27 LAG2 12 0 5 -3 +- 13 1 +- 8 4 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 13 Apr 05 00:01 LAG1 6 0 13 10 +- 27 10 +- 42 2 7832 13 Apr 05 03:35 LAG2 7 0 4 0 +- 26 -1 +- 54 4 7832 13 Apr 05 16:57 LAG2 10 0 4 0 +- 42 2 +- 30 2 7832 15 Apr 05 21:33 LAG2 14 0 15 -14 +- 18 0 +- 24 3 7832 15 Apr 05 23:19 LAG1 16 0 12 -7 +- 16 -3 +- 10 5 7832 16 Apr 05 01:47 LAG2 7 0 15 9 +- 55 -6 +- 50 0 7832 17 Apr 05 13:27 LAG2 9 0 7 11 +- 40 5 +- 41 0 7832 17 Apr 05 17:23 LAG2 10 0 7 -4 +- 20 0 +- 12 5 7832 18 Apr 05 00:05 LAG1 11 0 7 0 +- 23 -4 +- 19 5 7832 18 Apr 05 02:01 LAG2 7 0 16 -12 +- 50 -25 +- 51 2 7832 18 Apr 05 15:24 LAG2 22 0 8 -3 +- 14 -3 +- 8 5 7832 18 Apr 05 19:41 LAG2 7 0 11 -11 +- 33 0 +- 33 2 7832 18 Apr 05 22:45 LAG1 8 0 4 4 +- 25 0 +- 19 2 7832 19 Apr 05 00:09 LAG2 11 0 5 4 +- 19 0 +- 24 1 7832 19 Apr 05 13:37 LAG2 18 0 3 1 +- 15 -1 +- 12 2 7832 19 Apr 05 17:45 LAG2 11 0 9 -8 +- 22 -11 +- 27 3 7832 19 Apr 05 21:23 LAG1 10 0 2 0 +- 24 0 +- 25 2 7832 19 Apr 05 22:07 LAG2 11 0 13 11 +- 22 -1 +- 31 4 7832 20 Apr 05 00:53 LAG1 13 0 8 5 +- 18 -4 +- 16 2 7832 20 Apr 05 02:11 LAG2 9 0 14 1 +- 41 -11 +- 36 1 7832 20 Apr 05 10:57 LAG1 5 0 14 -18 +- 85 -5 +- 77 5 7832 20 Apr 05 15:41 LAG2 11 0 9 -10 +- 45 0 +- 28 1 7832 20 Apr 05 19:59 LAG2 6 0 4 -1 +- 117 1 +- 102 2 Station 7835 (Grasse) (position fixed, acc. 30 mm) 7835 13 Apr 05 02:57 LAG2 4 0 20 17 +- 611 -1 +- 292 2 7835 13 Apr 05 21:25 LAG2 3 0 5 -15 +- 981 5 +- 510 2 7835 19 Apr 05 22:09 LAG2 4 0 13 17 +- 584 -1 +- 293 1 7835 20 Apr 05 23:39 LAG1 7 0 14 -18 +- 45 15 +- 75 1 7835 20 Apr 05 23:53 LAG2 4 0 8 4 +- 344 8 +- 228 0 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 13 Apr 05 13:37 LAG2 12 0 11 0 +- 49 -4 +- 51 10 7837 14 Apr 05 11:39 LAG2 8 0 16 13 +- 60 -8 +- 38 8 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 13 Apr 05 09:39 LAG2 14 0 41 31 +- 28 12 +- 23 7 7838 13 Apr 05 17:49 LAG2 20 0 45 43 +- 21 8 +- 15 3 7838 13 Apr 05 18:31 LAG1 19 0 45 47 +- 23 -8 +- 13 4 7838 14 Apr 05 04:39 LAG1 11 0 15 7 +- 32 4 +- 15 7 7838 14 Apr 05 11:39 LAG2 22 0 46 42 +- 21 5 +- 13 3 7838 14 Apr 05 15:44 LAG2 25 0 41 40 +- 19 5 +- 13 5 7838 14 Apr 05 17:07 LAG1 21 0 38 35 +- 21 3 +- 11 6 7838 14 Apr 05 19:59 LAG2 22 0 41 38 +- 20 4 +- 14 7 7838 15 Apr 05 03:16 LAG1 6 0 44 43 +- 39 2 +- 15 4 7838 15 Apr 05 19:19 LAG1 14 0 52 51 +- 25 -7 +- 20 8 7838 16 Apr 05 11:45 LAG2 26 0 45 37 +- 18 14 +- 11 5 7838 16 Apr 05 14:25 LAG1 13 0 36 35 +- 26 -15 +- 34 3 7838 16 Apr 05 16:01 LAG2 25 0 51 50 +- 19 0 +- 13 7 7838 16 Apr 05 17:49 LAG1 24 0 39 37 +- 19 -6 +- 9 4 7838 17 Apr 05 09:53 LAG2 23 0 45 34 +- 20 16 +- 11 3 7838 18 Apr 05 12:04 LAG2 22 0 40 32 +- 21 11 +- 14 5 7838 18 Apr 05 15:23 LAG1 11 0 31 35 +- 42 -5 +- 36 2 7838 19 Apr 05 01:23 LAG1 11 0 54 53 +- 31 -1 +- 24 5 7838 19 Apr 05 10:06 LAG2 21 0 38 23 +- 20 17 +- 12 3 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 14 Apr 05 08:55 LAG1 3 0 3 -3 +- 28 0 +- 23 0 7839 15 Apr 05 03:07 LAG2 22 0 11 -2 +- 9 -6 +- 5 1 7839 15 Apr 05 03:59 LAG1 22 0 8 -3 +- 8 3 +- 4 2 7839 15 Apr 05 07:37 LAG1 7 0 9 9 +- 17 0 +- 24 0 7839 15 Apr 05 11:12 LAG1 6 0 10 1 +- 38 -7 +- 23 0 7839 15 Apr 05 21:19 LAG2 12 0 4 0 +- 13 2 +- 6 1 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 15 Apr 05 21:03 LAG2 16 0 11 3 +- 16 5 +- 8 3 7840 16 Apr 05 01:13 LAG2 22 0 13 4 +- 14 -7 +- 8 3 7840 16 Apr 05 02:41 LAG1 16 0 7 -4 +- 16 -2 +- 8 3 7840 16 Apr 05 09:39 LAG1 17 0 14 4 +- 16 -7 +- 9 4 7840 16 Apr 05 13:37 LAG1 5 0 27 4 +- 174 -18 +- 99 6 7840 16 Apr 05 23:11 LAG2 22 0 12 1 +- 14 6 +- 8 5 7840 17 Apr 05 01:19 LAG1 19 0 4 0 +- 15 2 +- 9 3 7840 17 Apr 05 04:53 LAG1 18 0 13 -1 +- 15 7 +- 8 3 7840 17 Apr 05 08:25 LAG1 15 0 14 12 +- 17 3 +- 12 3 7840 17 Apr 05 11:51 LAG1 18 0 10 -5 +- 15 -3 +- 9 6 7840 18 Apr 05 10:27 LAG1 14 0 15 14 +- 18 4 +- 11 6 7840 18 Apr 05 14:29 LAG1 4 0 20 23 +- 283 -26 +- 173 1 7840 18 Apr 05 19:29 LAG2 13 0 7 5 +- 18 3 +- 11 1 7840 18 Apr 05 23:26 LAG2 17 0 14 0 +- 16 7 +- 8 5 7840 19 Apr 05 05:45 LAG1 9 0 3 3 +- 30 3 +- 25 1 7840 19 Apr 05 09:13 LAG1 9 0 12 12 +- 24 -1 +- 24 2 7840 19 Apr 05 12:37 LAG1 17 0 18 0 +- 16 -10 +- 9 5 7840 19 Apr 05 17:41 LAG2 14 0 13 12 +- 17 -1 +- 15 4 7840 19 Apr 05 21:31 LAG2 20 0 13 6 +- 14 5 +- 7 5 7840 20 Apr 05 00:49 LAG1 12 0 8 7 +- 19 -2 +- 17 3 7840 20 Apr 05 01:43 LAG2 22 0 13 1 +- 14 -8 +- 9 3 7840 20 Apr 05 04:21 LAG1 17 0 5 -4 +- 16 1 +- 9 2 7840 20 Apr 05 05:51 LAG2 6 0 18 -17 +- 31 -4 +- 80 1 7840 20 Apr 05 07:50 LAG1 9 0 3 0 +- 22 0 +- 13 3 7840 20 Apr 05 11:27 LAG1 4 0 11 8 +- 41 -3 +- 79 5 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 15 Apr 05 21:13 LAG2 5 0 8 -35 +- 151 -14 +- 77 1 7841 16 Apr 05 01:25 LAG2 16 0 13 13 +- 12 -9 +- 8 5 7841 16 Apr 05 03:07 LAG1 7 0 6 -11 +- 95 2 +- 40 3 7841 16 Apr 05 19:23 LAG2 17 0 10 2 +- 10 5 +- 6 6 7841 16 Apr 05 23:23 LAG2 14 0 16 3 +- 11 4 +- 7 15 7841 17 Apr 05 21:22 LAG2 19 0 7 0 +- 10 2 +- 6 6 7841 17 Apr 05 23:52 LAG1 15 0 9 -4 +- 11 3 +- 9 5 7841 18 Apr 05 01:43 LAG2 4 0 8 -10 +- 38 -22 +- 73 5 7841 18 Apr 05 07:00 LAG1 12 0 27 16 +- 12 3 +- 10 22 7841 18 Apr 05 23:53 LAG2 11 0 8 -3 +- 25 7 +- 16 4 7841 20 Apr 05 00:41 LAG1 13 2 4 2 +- 25 3 +- 15 3 7841 20 Apr 05 01:47 LAG2 12 1 9 1 +- 16 -6 +- 14 4 7841 20 Apr 05 04:17 LAG1 12 0 15 -12 +- 12 3 +- 6 3 7841 20 Apr 05 23:55 LAG2 3 0 4 -19 +- 262 -14 +- 166 1 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 14 Apr 05 19:01 LAG2 13 0 3 -1 +- 14 0 +- 9 2 7941 14 Apr 05 23:05 LAG2 14 0 11 -5 +- 12 5 +- 9 1 7941 15 Apr 05 00:30 LAG1 17 0 5 1 +- 10 1 +- 5 3 7941 15 Apr 05 03:19 LAG2 9 0 24 -4 +- 14 -11 +- 7 0 7941 15 Apr 05 17:05 LAG2 17 0 9 9 +- 12 2 +- 8 3 7941 17 Apr 05 03:50 LAG2 7 0 6 11 +- 39 -12 +- 34 2 7941 17 Apr 05 17:53 LAG2 4 0 45 12 +- 245 -28 +- 123 1 7941 19 Apr 05 02:07 LAG1 5 0 6 58 +- 254 21 +- 98 2 7941 19 Apr 05 04:01 LAG2 3 0 2 2 +- 36 -1 +- 135 0 7941 19 Apr 05 17:39 LAG2 11 0 5 4 +- 12 -1 +- 8 2 7941 19 Apr 05 21:51 LAG2 3 0 7 16 +- 133 11 +- 149 3 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 13 Apr 05 21:13 LAG2 10 0 19 -21 +- 18 4 +- 11 7 8834 14 Apr 05 01:09 LAG2 7 0 10 24 +- 54 21 +- 42 7 8834 14 Apr 05 02:25 LAG1 5 0 24 -57 +- 226 13 +- 88 0 8834 14 Apr 05 05:23 LAG2 4 0 25 -25 +- 72 0 +- 106 4 8834 14 Apr 05 05:41 LAG1 8 0 4 2 +- 31 0 +- 22 3 8834 14 Apr 05 19:05 LAG2 18 0 10 -6 +- 9 -2 +- 6 6 8834 14 Apr 05 23:05 LAG2 19 0 17 -16 +- 10 4 +- 5 7 8834 15 Apr 05 00:21 LAG1 20 0 22 -5 +- 10 9 +- 5 11 8834 15 Apr 05 03:09 LAG2 17 0 20 -9 +- 10 -9 +- 6 10 8834 15 Apr 05 04:12 LAG1 15 0 12 -8 +- 12 3 +- 8 10 8834 15 Apr 05 07:31 LAG1 14 0 10 -8 +- 11 -1 +- 7 6 8834 15 Apr 05 17:27 LAG2 9 0 19 20 +- 17 -2 +- 18 1 8834 15 Apr 05 21:19 LAG2 5 0 7 -2 +- 65 3 +- 56 3 8834 15 Apr 05 23:26 LAG1 5 0 3 1 +- 60 -4 +- 60 1 8834 16 Apr 05 01:43 LAG2 4 0 4 0 +- 125 -3 +- 92 0 8834 16 Apr 05 02:41 LAG1 4 0 19 97 +- 288 46 +- 119 10 8834 16 Apr 05 05:23 LAG2 12 0 18 -7 +- 13 -13 +- 12 2 8834 16 Apr 05 06:15 LAG1 11 0 10 -8 +- 14 -1 +- 9 4 8834 16 Apr 05 09:55 LAG1 7 0 21 -9 +- 42 -7 +- 26 3 8834 16 Apr 05 23:41 LAG2 7 0 12 -15 +- 31 3 +- 30 4 8834 17 Apr 05 04:55 LAG1 6 0 25 -17 +- 21 7 +- 14 3 8834 20 Apr 05 23:39 LAG1 6 0 11 -27 +- 39 26 +- 44 1 8834 20 Apr 05 23:53 LAG2 4 0 13 -16 +- 154 -1 +- 88 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 040701 - 050404 0/ 24/ 0 0/ 31/ 0 55 1831 LVIL 040815 - 050404 0/ 27/ 0 0/ 37/ 0 64 1864 MD2LAS 040701 - 050419 0/ 98/ 0 0/ 93/ 0 191 1873 SIMLAS 040703 - 050415 0/ 26/ 0 0/ 21/ 0 47 1884 RIGLAS 040712 - 050419 0/ 47/ 1 0/ 45/ 3 96 1893 CRMLAS 040705 - 041012 0/ 45/ 0 0/ 35/ 0 80 6405 TIGO 040710 - 050421 10/ 14/ 1 8/ 19/ 2 54 6810 ZIMLAT 040805 - 050415 192/118/ 21 111/112/ 19 573 7080 MLRS25 040701 - 050420 65/ 69/ 5 59/ 93/ 7 298 7090 ML0514 040716 - 050420 152/451/ 38 140/277/ 33 1091 7105 ML0725 040701 - 050420 0/ 87/ 4 2/118/ 7 218 7110 ML0414 040701 - 050416 86/142/ 18 82/157/ 22 507 7124 ML0819 040705 - 050412 0/ 35/ 0 0/ 14/ 0 49 7231 WUHA01 040701 - 041208 0/ 8/ 0 0/ 20/ 0 28 7237 CHALAS 040702 - 050417 0/164/ 1 0/190/ 1 356 7249 BEJLAS 040701 - 050414 0/108/ 0 0/136/ 0 244 7308 CRLLAS 041201 - 050307 9/ 11/ 2 3/ 15/ 0 40 7355 TROS02 040702 - 040829 0/ 37/ 0 0/ 29/ 0 66 7405 TIGO 040710 - 050420 7/ 30/ 0 3/ 10/ 0 50 7501 ML0616 040701 - 050418 23/ 48/ 4 60/ 82/ 7 224 7604 BREF 041017 - 041021 0/ 1/ 0 0/ 2/ 0 3 7806 METLAS 040720 - 050301 0/ 16/ 0 0/ 11/ 0 27 7810 ZIMLAT 040701 - 050415 242/144/ 27 136/130/ 23 702 7811 POLLAS 040706 - 050421 0/ 61/ 0 0/ 80/ 0 141 7824 SPNLAS 040701 - 050421 1/110/ 0 0/112/ 1 224 7825 STL3 040807 - 050420 173/265/ 40 173/162/ 29 842 7832 SALRO 040702 - 050420 149/244/ 19 197/298/ 30 937 7835 GRASSE 040702 - 050421 0/ 51/ 2 0/ 47/ 2 102 7836 GFZLAS 040701 - 040701 0/ 1/ 0 0/ 0/ 0 1 7837 CHILAS 040704 - 050414 0/104/ 0 0/151/ 2 257 7838 SHOLAS 040701 - 050419 71/129/ 4 80/168/ 10 462 7839 AUSLAS 040701 - 050415 214/180/ 30 95/180/ 25 724 7840 RGOLAS 040701 - 050420 165/117/ 26 88/126/ 18 540 7841 GFZLA3 040702 - 050421 60/ 74/ 17 28/101/ 12 292 7845 GRASLL 040705 - 040920 11/ 14/ 0 3/ 12/ 1 41 7941 MLROnn 040701 - 050419 94/ 71/ 10 82/ 91/ 12 360 8834 WLRS01 040701 - 050421 246/156/ 30 145/176/ 23 776 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 050414.0 -46.2 +/- 0.1 260.3 +/- 0.1 -32640.59 +/- 0.01 050415.0 -46.8 +/- 0.1 262.8 +/- 0.1 -32640.83 +/- 0.02 050416.0 -48.0 +/- 0.1 264.9 +/- 0.1 -32641.20 +/- 0.03 050417.0 -49.3 +/- 0.1 267.3 +/- 0.1 -32641.69 +/- 0.03 050418.0 -51.0 +/- 0.1 269.4 +/- 0.1 -32642.31 +/- 0.04 050419.0 -52.7 +/- 0.1 271.7 +/- 0.1 -32643.20 +/- 0.04 050420.0 -53.8 +/- 0.1 274.3 +/- 0.1 -32644.24 +/- 0.05 -------------------------------------------------------------- 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, 2003, 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 syste 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 ******************************************************************************** |