| Date: | 2004-08-31 07:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4259: Delft QL Report August 31, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-08-31 07:15:00 UTC Message No. 4259 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report August 31, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS August 31, 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, Aug 30, 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, Aug 30, 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 ------------------------------------------------------------------------------ 1831 Lviv, Ukraine 040823 - 040828 1 3 1864 Maidanak, Uzbekistan (site 2) 040823 - 040830 4 5 1873 Simeiz, Crimea, Ukraine 040825 - 040827 1 2 1884 Riga, Latvia 040823 - 040829 3 1 1893 Kazivili, Crimea, Ukraine 040824 - 040829 3 - 6810 Zimmerwald 846, Switzerland 040823 - 040830 17 7 7080 McDonald Obs., Fort Davis, TX 040823 - 040827 4 5 7090 Yarragadee, Australia 040823 - 040830 12 14 7105 Greenbelt, Maryland 040824 - 040830 3 5 7110 Monument Peak, California 040823 - 040829 16 16 7237 Changchun, China 040823 - 040830 7 7 7249 Beijing, China 040828 - 040830 2 5 7355 Urumqi, China (TROS) 040825 - 040829 4 2 7405 Concepcion, Chile (TIGO 424) 040823 - 040823 1 - 7501 Hartebeesthoek, SA (MOB-6) 040823 - 040830 - 7 7810 Zimmerwald 423, Switzerland 040823 - 040830 17 6 7811 Borowiec, Poland 040825 - 040826 - 2 7824 San Fernando, Spain 040824 - 040829 4 2 7825 Mount Stromlo, Australia 040823 - 040826 5 9 7832 Riyad, Saudi Arabia 040823 - 040830 14 19 7837 Shanghai Observatory, China 040824 - 040830 2 7 7838 Simosato Observatory, Japan 040825 - 040826 2 3 7839 Graz, Austria 040823 - 040830 15 8 7840 Herstmonceux, United Kingdom 040823 - 040827 5 3 7841 Potsdam, Germany 040823 - 040823 1 - 7845 Grasse, France (LLR) 040823 - 040827 4 1 8834 Wettzell, Germany 040823 - 040829 9 8 ------ ------ --- --- TOTAL 040823 - 040830 156 147 ------------------------------------------------------------------------------ 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, Aug 21, 2004 to Sun, Aug 29, 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 25 26 Number of Passes 167/165 166/165 Number of Normal Points 1397/1383 1648/1612 Weighted RMS of Fit (mm) 11 12 ----------------------------------------------------------------------- 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 1831 (Lviv) (position fixed, acc. 400 mm) 1831 23 Aug 04 18:55 LAG2 8 0 129 65 +- 810 -65 +- 787 18 1831 23 Aug 04 21:09 LAG1 16 0 160 1 +- 302 -109 +- 210 27 1831 23 Aug 04 23:08 LAG2 3 0 295 310 +- 733 -82 +- 914 8 1831 28 Aug 04 21:41 LAG2 10 0 392 569 +- 673 -205 +- 564 25 Station 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 21 Aug 04 19:17 LAG2 3 0 26 -311 +-4747 220 +-3268 10 1864 21 Aug 04 23:01 LAG2 3 0 19 -21 +-7013 0 +-3821 0 1864 22 Aug 04 19:03 LAG1 6 0 36 40 +- 800 -7 +- 531 20 1864 23 Aug 04 17:25 LAG1 3 0 14 51 +-3889 21 +-2223 0 1864 23 Aug 04 19:29 LAG2 3 0 33 161 +-2950 -113 +-2496 9 1864 27 Aug 04 15:23 LAG2 6 0 13 12 +- 307 4 +- 206 8 1864 27 Aug 04 19:09 LAG1 7 0 24 19 +- 268 -9 +- 206 18 1864 28 Aug 04 00:02 LAG2 2 0 5 -1 +- 444 -40 +-3689 0 1864 28 Aug 04 17:39 LAG1 8 0 39 2 +- 235 -17 +- 198 33 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 22 Aug 04 19:06 LAG1 4 0 280 284 +- 305 -48 +- 434 15 1873 25 Aug 04 23:35 LAG2 5 0 313 277 +- 833 37 +- 896 41 1873 27 Aug 04 19:21 LAG1 6 0 290 315 +- 297 -69 +- 422 12 1873 27 Aug 04 19:33 LAG2 7 0 233 219 +- 277 29 +- 423 32 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 21 Aug 04 20:29 LAG1 11 0 19 -6 +- 90 -11 +- 63 6 1884 22 Aug 04 19:07 LAG1 11 0 8 0 +- 91 4 +- 82 6 1884 22 Aug 04 22:49 LAG1 7 0 6 -1 +- 117 -2 +- 205 5 1884 23 Aug 04 21:12 LAG1 13 0 18 -11 +- 84 -6 +- 53 7 1884 23 Aug 04 23:00 LAG2 9 0 16 -12 +- 100 0 +- 100 10 1884 24 Aug 04 19:55 LAG1 12 0 19 -17 +- 86 3 +- 74 5 Station 1893 (Kazivili) (position fixed, acc. 100 mm) 1893 21 Aug 04 18:44 LAG2 6 0 24 25 +- 251 48 +- 281 2 1893 21 Aug 04 20:16 LAG1 8 0 21 18 +- 222 7 +- 151 19 1893 22 Aug 04 18:55 LAG1 8 0 18 40 +- 241 27 +- 159 3 1893 22 Aug 04 20:55 LAG2 5 0 44 77 +- 306 63 +- 411 18 1893 24 Aug 04 19:43 LAG1 6 0 15 43 +- 491 29 +- 287 7 1893 26 Aug 04 20:33 LAG1 6 0 20 -7 +- 364 9 +- 259 5 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 21 Aug 04 13:36 LAG1 4 0 7 -19 +- 462 -7 +- 272 0 6810 21 Aug 04 16:55 LAG1 7 0 10 35 +- 334 20 +- 169 4 6810 21 Aug 04 20:39 LAG1 11 0 32 -17 +- 104 -9 +- 62 4 6810 22 Aug 04 00:21 LAG1 8 0 30 17 +- 286 -27 +- 170 7 6810 22 Aug 04 02:31 LAG2 18 0 24 -22 +- 43 1 +- 22 6 6810 22 Aug 04 06:49 LAG2 15 0 28 -26 +- 52 -3 +- 55 3 6810 23 Aug 04 10:49 LAG1 9 0 7 -8 +- 104 -8 +- 87 4 6810 23 Aug 04 14:19 LAG1 8 0 15 -13 +- 105 0 +- 58 4 6810 25 Aug 04 11:33 LAG1 9 0 14 -15 +- 117 0 +- 75 1 6810 25 Aug 04 15:05 LAG1 3 0 52 -56 +-2015 -1 +- 880 1 6810 27 Aug 04 08:55 LAG1 7 0 48 -46 +- 72 11 +- 150 3 6810 27 Aug 04 12:37 LAG1 2 0 6 8 +- 462 3 +- 696 0 6810 27 Aug 04 16:01 LAG1 9 0 16 -11 +- 66 -4 +- 46 3 6810 27 Aug 04 19:05 LAG2 19 0 23 -23 +- 42 -5 +- 28 5 6810 27 Aug 04 19:13 LAG1 12 0 15 -13 +- 53 -4 +- 30 5 6810 27 Aug 04 22:41 LAG1 20 0 10 -9 +- 42 -2 +- 25 4 6810 27 Aug 04 23:05 LAG2 21 0 19 -19 +- 40 -1 +- 23 2 6810 28 Aug 04 03:13 LAG2 26 0 14 -10 +- 36 -7 +- 22 2 6810 28 Aug 04 07:41 LAG2 2 0 7 0 +-1155 -12 +-2048 0 6810 28 Aug 04 11:01 LAG1 11 0 23 -4 +- 90 13 +- 63 1 6810 28 Aug 04 14:29 LAG1 15 0 18 -12 +- 55 5 +- 32 1 6810 28 Aug 04 17:23 LAG2 9 0 17 -18 +- 117 -1 +- 130 1 6810 28 Aug 04 18:07 LAG1 8 0 27 -26 +- 64 7 +- 89 4 6810 28 Aug 04 21:09 LAG2 16 0 13 -13 +- 46 1 +- 25 3 6810 28 Aug 04 21:19 LAG1 6 0 9 -12 +- 97 -4 +- 47 1 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 21 Aug 04 17:41 LAG1 4 0 2 2 +- 235 2 +- 151 0 7080 21 Aug 04 21:28 LAG1 3 0 10 17 +- 131 -11 +- 177 1 7080 23 Aug 04 12:37 LAG2 15 0 14 -13 +- 26 0 +- 17 6 7080 24 Aug 04 04:43 LAG1 11 0 15 16 +- 21 -2 +- 19 2 7080 24 Aug 04 06:14 LAG2 2 0 10 -8 +- 362 -20 +- 393 0 7080 24 Aug 04 08:18 LAG1 12 0 3 0 +- 27 3 +- 26 1 7080 24 Aug 04 10:22 LAG2 16 0 12 -2 +- 16 -8 +- 12 2 7080 24 Aug 04 14:33 LAG2 15 0 12 7 +- 17 7 +- 15 2 7080 26 Aug 04 02:31 LAG2 10 0 20 26 +- 39 -6 +- 31 1 7080 26 Aug 04 05:17 LAG1 6 0 7 -6 +- 210 -5 +- 88 2 7080 27 Aug 04 20:08 LAG1 7 0 6 0 +- 37 -6 +- 34 1 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 22 Aug 04 08:23 LAG2 24 0 11 -10 +- 8 -1 +- 5 1 7090 22 Aug 04 12:25 LAG2 20 0 3 1 +- 9 0 +- 7 2 7090 22 Aug 04 14:26 LAG1 9 0 4 -4 +- 15 -1 +- 20 1 7090 22 Aug 04 17:47 LAG1 21 0 5 -3 +- 9 1 +- 4 1 7090 22 Aug 04 21:35 LAG1 5 0 7 4 +- 73 -11 +- 72 0 7090 22 Aug 04 22:10 LAG2 7 0 5 -1 +- 51 -3 +- 49 4 7090 23 Aug 04 10:29 LAG2 20 0 19 -9 +- 9 -9 +- 5 1 7090 23 Aug 04 20:03 LAG1 8 0 6 -3 +- 17 -8 +- 19 3 7090 24 Aug 04 08:55 LAG2 7 0 12 -3 +- 18 -6 +- 19 9 7090 24 Aug 04 12:44 LAG2 3 0 31 31 +- 106 0 +- 102 2 7090 24 Aug 04 15:05 LAG1 9 0 7 -25 +- 52 -14 +- 28 2 7090 24 Aug 04 18:44 LAG1 6 0 11 -10 +- 19 -4 +- 20 7 7090 25 Aug 04 07:17 LAG2 5 0 2 -7 +- 234 3 +- 121 2 7090 25 Aug 04 10:45 LAG2 22 0 8 -3 +- 9 -4 +- 5 3 7090 25 Aug 04 17:17 LAG1 20 0 5 3 +- 9 0 +- 5 3 7090 26 Aug 04 08:55 LAG2 15 0 19 -18 +- 11 3 +- 5 4 7090 26 Aug 04 15:55 LAG1 6 0 7 -13 +- 46 -3 +- 24 1 7090 27 Aug 04 21:37 LAG1 3 0 9 -9 +- 31 0 +- 93 0 7090 28 Aug 04 01:15 LAG2 4 0 11 1 +- 347 -6 +- 165 1 7090 28 Aug 04 05:15 LAG2 4 0 16 -4 +- 48 -26 +- 111 5 7090 28 Aug 04 09:16 LAG2 5 0 14 -18 +- 44 -4 +- 45 1 7090 28 Aug 04 16:41 LAG1 16 0 5 4 +- 13 0 +- 7 1 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 23 Aug 04 00:15 LAG2 6 0 16 12 +- 17 6 +- 13 2 7105 23 Aug 04 02:59 LAG1 3 0 16 284 +-1539 -106 +- 548 1 7105 23 Aug 04 04:19 LAG2 4 0 9 -13 +- 70 -5 +- 93 0 7105 23 Aug 04 08:23 LAG2 5 0 2 -18 +- 153 -12 +- 95 1 7105 24 Aug 04 01:11 LAG1 9 0 10 -8 +- 14 -5 +- 17 1 7105 24 Aug 04 02:27 LAG2 7 0 5 4 +- 17 2 +- 29 1 7105 24 Aug 04 04:33 LAG1 2 0 16 97 +-1190 39 +- 577 0 7105 24 Aug 04 06:23 LAG2 12 0 6 0 +- 12 -4 +- 8 4 7105 26 Aug 04 07:21 LAG2 2 0 26 -1508 +-1709 713 +- 808 0 7105 27 Aug 04 00:29 LAG1 5 0 5 -17 +- 115 -7 +- 65 0 7105 27 Aug 04 01:09 LAG2 4 0 5 -11 +- 387 6 +- 180 4 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 21 Aug 04 05:11 LAG1 6 0 10 -4 +- 20 -5 +- 9 1 7110 21 Aug 04 07:43 LAG2 6 0 14 9 +- 69 -3 +- 50 1 7110 21 Aug 04 09:15 LAG1 2 0 5 112 +- 788 -64 +- 468 0 7110 21 Aug 04 12:02 LAG2 4 0 7 -46 +- 174 -25 +- 109 2 7110 22 Aug 04 14:23 LAG2 9 0 9 -10 +- 17 6 +- 15 4 7110 23 Aug 04 18:41 LAG1 5 0 8 7 +- 18 0 +- 45 3 7110 23 Aug 04 22:13 LAG1 6 0 13 -2 +- 21 -8 +- 15 1 7110 24 Aug 04 04:51 LAG1 10 0 10 12 +- 17 -2 +- 15 1 7110 24 Aug 04 06:09 LAG2 4 0 7 10 +- 61 4 +- 78 0 7110 24 Aug 04 10:32 LAG2 1 0 1 0 +- 0 0 +- 0 0 7110 24 Aug 04 14:37 LAG2 11 0 6 -5 +- 16 4 +- 15 4 7110 24 Aug 04 20:49 LAG1 6 0 2 0 +- 20 -2 +- 28 1 7110 25 Aug 04 04:45 LAG2 3 0 11 -222 +-1442 95 +- 591 0 7110 25 Aug 04 06:59 LAG1 10 0 10 -10 +- 16 0 +- 12 0 7110 25 Aug 04 08:13 LAG2 16 0 4 -3 +- 10 0 +- 10 2 7110 25 Aug 04 12:21 LAG2 18 0 22 -20 +- 9 -1 +- 5 9 7110 25 Aug 04 19:31 LAG1 3 0 16 19 +- 29 21 +- 104 1 7110 26 Aug 04 02:15 LAG1 7 0 9 8 +- 16 -9 +- 32 1 7110 26 Aug 04 05:33 LAG1 6 0 10 8 +- 17 3 +- 9 1 7110 26 Aug 04 06:23 LAG2 15 0 7 6 +- 12 0 +- 11 3 7110 26 Aug 04 09:17 LAG1 4 0 18 -17 +- 51 -1 +- 96 0 7110 26 Aug 04 10:34 LAG2 13 0 17 -18 +- 12 3 +- 8 3 7110 26 Aug 04 14:43 LAG2 5 0 17 -3 +- 49 15 +- 58 2 7110 26 Aug 04 18:11 LAG1 4 0 14 -23 +- 41 27 +- 83 3 7110 26 Aug 04 21:33 LAG1 9 0 10 -10 +- 14 0 +- 16 2 7110 27 Aug 04 04:05 LAG1 6 1 13 13 +- 19 0 +- 11 5 7110 27 Aug 04 05:01 LAG2 1 0 19 0 +- 0 0 +- 0 0 7110 27 Aug 04 07:37 LAG1 7 0 14 0 +- 45 10 +- 31 3 7110 27 Aug 04 08:41 LAG2 12 0 7 6 +- 12 -7 +- 20 3 7110 27 Aug 04 12:43 LAG2 11 0 15 -19 +- 17 8 +- 11 6 7110 27 Aug 04 20:09 LAG1 7 0 8 0 +- 35 -5 +- 25 3 7110 28 Aug 04 02:37 LAG2 4 0 29 28 +- 38 -2 +- 90 0 7110 28 Aug 04 03:05 LAG1 6 0 5 10 +- 38 -8 +- 36 1 7110 28 Aug 04 06:11 LAG1 18 0 6 0 +- 9 2 +- 5 3 7110 28 Aug 04 06:57 LAG2 3 0 3 -7 +- 258 3 +- 212 0 7110 28 Aug 04 10:41 LAG2 13 0 17 -14 +- 11 -4 +- 6 4 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 21 Aug 04 11:19 LAG2 13 0 10 2 +- 53 3 +- 48 8 7237 21 Aug 04 12:47 LAG1 18 0 18 1 +- 36 10 +- 21 5 7237 21 Aug 04 15:03 LAG2 22 0 24 23 +- 33 1 +- 23 7 7237 21 Aug 04 16:29 LAG1 8 0 46 44 +- 55 8 +- 76 6 7237 21 Aug 04 19:24 LAG2 5 0 28 20 +- 80 8 +- 60 7 7237 22 Aug 04 11:29 LAG1 17 0 22 -6 +- 37 13 +- 23 5 7237 22 Aug 04 13:19 LAG2 16 0 17 15 +- 42 -3 +- 28 9 7237 22 Aug 04 15:13 LAG1 13 0 37 26 +- 68 8 +- 42 4 7237 22 Aug 04 17:15 LAG2 18 0 14 13 +- 36 0 +- 22 4 7237 23 Aug 04 11:23 LAG2 18 0 18 6 +- 36 -14 +- 28 5 7237 23 Aug 04 13:39 LAG1 8 0 8 5 +- 62 4 +- 43 5 7237 23 Aug 04 15:31 LAG2 14 0 21 18 +- 46 -16 +- 38 7 7237 23 Aug 04 19:35 LAG2 11 0 21 17 +- 46 -3 +- 41 9 7237 24 Aug 04 12:12 LAG1 19 0 12 -5 +- 35 3 +- 19 9 7237 24 Aug 04 13:33 LAG2 14 0 18 14 +- 53 -14 +- 33 4 7237 24 Aug 04 15:55 LAG1 10 0 14 11 +- 48 0 +- 55 7 7237 24 Aug 04 17:49 LAG2 15 0 13 8 +- 70 2 +- 47 5 7237 26 Aug 04 13:15 LAG1 2 0 9 -12 +- 497 -3 +- 717 0 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 28 Aug 04 13:53 LAG2 7 0 13 13 +- 142 2 +- 126 7 7249 28 Aug 04 14:11 LAG1 7 0 58 45 +- 164 7 +- 102 4 7249 28 Aug 04 18:03 LAG2 13 0 48 -37 +- 42 27 +- 44 17 Station 7355 (Urumqi) (position solved, acc. 10 mm) 7355 21 Aug 04 14:57 LAG2 15 0 13 -1 +- 10 -3 +- 9 13 7355 21 Aug 04 16:31 LAG1 14 0 20 -12 +- 11 -2 +- 8 16 7355 21 Aug 04 19:18 LAG2 8 0 29 -29 +- 29 50 +- 29 7 7355 25 Aug 04 14:49 LAG1 7 0 24 -9 +- 20 30 +- 24 10 7355 25 Aug 04 15:33 LAG2 12 0 24 25 +- 14 -10 +- 13 10 7355 26 Aug 04 17:01 LAG1 4 1 14 24 +- 67 -18 +- 80 7 7355 27 Aug 04 15:35 LAG1 6 0 55 -56 +- 18 6 +- 28 3 7355 27 Aug 04 15:47 LAG2 11 1 58 -62 +- 17 8 +- 17 13 Station 7405 (Concepcion) (position solved, acc. 20 mm) 7405 23 Aug 04 05:11 LAG1 8 0 1 0 +- 67 0 +- 39 1 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 21 Aug 04 05:31 LAG2 19 0 4 0 +- 10 -3 +- 8 1 7501 21 Aug 04 09:42 LAG2 13 0 12 -2 +- 14 14 +- 15 3 7501 22 Aug 04 07:37 LAG2 10 0 8 -4 +- 17 4 +- 18 1 7501 23 Aug 04 05:45 LAG2 9 0 11 8 +- 14 4 +- 9 3 7501 23 Aug 04 10:01 LAG2 11 0 21 5 +- 18 20 +- 21 2 7501 23 Aug 04 18:17 LAG2 16 0 12 -5 +- 12 12 +- 11 2 7501 24 Aug 04 03:55 LAG2 3 0 11 -6 +- 191 -23 +- 266 4 7501 25 Aug 04 05:51 LAG2 10 0 7 4 +- 29 7 +- 21 2 7501 27 Aug 04 18:59 LAG2 4 0 5 -18 +- 137 15 +- 159 2 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 21 Aug 04 13:36 LAG1 4 0 6 -5 +- 479 -6 +- 287 2 7810 21 Aug 04 16:55 LAG1 8 0 4 13 +- 255 6 +- 136 2 7810 21 Aug 04 20:39 LAG1 11 0 22 0 +- 104 -13 +- 62 3 7810 22 Aug 04 00:21 LAG1 7 0 10 20 +- 312 -18 +- 194 0 7810 22 Aug 04 02:31 LAG2 11 0 12 -5 +- 67 2 +- 35 7 7810 22 Aug 04 06:49 LAG2 15 0 17 -12 +- 52 -7 +- 54 3 7810 22 Aug 04 15:39 LAG1 11 0 29 -21 +- 82 7 +- 58 1 7810 23 Aug 04 10:49 LAG1 10 0 11 3 +- 85 -7 +- 74 1 7810 23 Aug 04 14:19 LAG1 9 0 13 -13 +- 78 0 +- 44 2 7810 25 Aug 04 11:33 LAG1 9 0 10 -5 +- 143 2 +- 81 2 7810 25 Aug 04 15:05 LAG1 3 0 47 -39 +-2239 3 +- 980 1 7810 27 Aug 04 08:55 LAG1 9 0 48 -48 +- 61 13 +- 124 1 7810 27 Aug 04 12:37 LAG1 2 0 4 9 +- 602 8 +- 912 0 7810 27 Aug 04 16:01 LAG1 10 0 12 -2 +- 65 -7 +- 43 2 7810 27 Aug 04 19:17 LAG2 9 0 22 -16 +- 76 -4 +- 46 4 7810 27 Aug 04 19:23 LAG1 9 0 15 -11 +- 65 -4 +- 44 3 7810 27 Aug 04 22:43 LAG1 9 0 12 -8 +- 61 -2 +- 30 7 7810 27 Aug 04 23:13 LAG2 4 0 14 -15 +- 130 -1 +- 76 4 7810 28 Aug 04 03:17 LAG2 12 0 18 -11 +- 52 -7 +- 26 5 7810 28 Aug 04 07:41 LAG2 3 0 2 7 +- 652 -10 +-1007 2 7810 28 Aug 04 11:01 LAG1 10 0 21 0 +- 111 14 +- 74 2 7810 28 Aug 04 14:31 LAG1 14 0 9 -3 +- 57 4 +- 36 2 7810 28 Aug 04 18:07 LAG1 6 0 19 -18 +- 77 4 +- 111 1 7810 28 Aug 04 21:09 LAG2 7 0 10 -8 +- 167 1 +- 92 1 7810 28 Aug 04 21:51 LAG1 2 0 8 -210 +-4616 114 +-2590 0 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 25 Aug 04 19:11 LAG2 5 0 18 -27 +- 214 -11 +- 245 2 7811 26 Aug 04 21:19 LAG2 12 0 14 -3 +- 60 12 +- 59 8 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 24 Aug 04 20:05 LAG1 3 0 39 38 +- 98 -5 +- 338 1 7824 24 Aug 04 20:37 LAG2 2 0 90 2875 +-4753 1219 +-2070 0 7824 24 Aug 04 23:20 LAG1 4 0 59 151 +- 436 50 +- 232 5 7824 25 Aug 04 00:53 LAG2 10 0 55 51 +- 39 -11 +- 34 6 7824 25 Aug 04 22:27 LAG1 1 0 53 0 +- 0 0 +- 0 0 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 22 Aug 04 00:47 LAG2 2 0 164 2971 +- 783 -1708 +- 469 0*CHK* 7825 23 Aug 04 00:51 LAG1 5 0 10 -10 +- 193 7 +- 77 6 7825 23 Aug 04 02:41 LAG2 13 0 11 1 +- 13 -9 +- 13 6 7825 23 Aug 04 06:55 LAG2 10 0 5 -5 +- 15 1 +- 16 2 7825 23 Aug 04 19:47 LAG1 10 0 4 2 +- 13 -4 +- 18 1 7825 24 Aug 04 04:53 LAG2 10 0 7 -4 +- 13 -3 +- 17 5 7825 24 Aug 04 22:03 LAG1 7 0 13 1 +- 50 -5 +- 32 11 7825 24 Aug 04 22:34 LAG2 8 3 56 85 +- 28 -32 +- 15 8*CHK* 7825 25 Aug 04 01:25 LAG1 3 0 11 -3 +- 24 -36 +- 93 0 7825 25 Aug 04 02:50 LAG2 7 0 10 -2 +- 15 -5 +- 14 7 7825 25 Aug 04 07:17 LAG2 10 0 6 -7 +- 44 6 +- 21 2 7825 25 Aug 04 20:35 LAG1 8 0 12 6 +- 15 12 +- 24 6 7825 25 Aug 04 21:03 LAG2 5 1 21 -9 +- 55 44 +- 84 7 7825 26 Aug 04 01:11 LAG2 9 0 9 19 +- 59 -9 +- 33 8 7825 26 Aug 04 05:19 LAG2 11 0 8 -16 +- 27 8 +- 17 3 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 21 Aug 04 00:55 LAG2 11 0 13 -10 +- 22 -13 +- 20 2 7832 21 Aug 04 05:13 LAG2 11 0 11 13 +- 24 -14 +- 30 3 7832 21 Aug 04 16:47 LAG1 9 0 15 14 +- 22 2 +- 34 3 7832 21 Aug 04 18:33 LAG2 6 0 27 0 +- 131 18 +- 86 0 7832 21 Aug 04 20:07 LAG1 6 0 3 -7 +- 60 -5 +- 48 1 7832 21 Aug 04 22:57 LAG2 12 0 9 -8 +- 19 -3 +- 21 3 7832 22 Aug 04 03:17 LAG2 15 0 9 11 +- 24 -2 +- 15 3 7832 22 Aug 04 18:43 LAG1 4 0 6 10 +- 84 4 +- 50 3 7832 22 Aug 04 20:59 LAG2 11 0 9 -10 +- 23 8 +- 38 3 7832 23 Aug 04 01:11 LAG2 10 0 5 -8 +- 42 -5 +- 37 3 7832 23 Aug 04 07:29 LAG1 12 0 7 5 +- 23 0 +- 20 4 7832 23 Aug 04 17:25 LAG1 5 0 8 -10 +- 58 -11 +- 52 4 7832 23 Aug 04 18:55 LAG2 7 0 10 -12 +- 29 7 +- 23 1 7832 23 Aug 04 20:53 LAG1 11 0 6 -4 +- 22 -6 +- 20 2 7832 23 Aug 04 23:11 LAG2 7 0 1 1 +- 82 0 +- 88 1 7832 24 Aug 04 03:26 LAG2 13 0 12 12 +- 18 -4 +- 14 3 7832 24 Aug 04 16:21 LAG1 4 0 6 -7 +- 49 17 +- 118 3 7832 24 Aug 04 16:49 LAG2 6 0 7 -25 +- 185 -9 +- 97 1 7832 24 Aug 04 19:44 LAG1 11 0 9 -19 +- 46 9 +- 23 3 7832 24 Aug 04 21:13 LAG2 11 0 10 7 +- 20 12 +- 39 1 7832 25 Aug 04 01:19 LAG2 8 0 7 -8 +- 146 -8 +- 81 2 7832 25 Aug 04 05:50 LAG2 5 0 7 16 +- 129 -12 +- 145 4 7832 25 Aug 04 08:17 LAG1 4 0 7 7 +- 35 4 +- 48 2 7832 25 Aug 04 15:11 LAG2 8 0 14 -11 +- 25 -9 +- 42 2 7832 25 Aug 04 18:11 LAG1 6 0 23 -18 +- 35 5 +- 29 2 7832 25 Aug 04 18:57 LAG2 6 0 5 -12 +- 197 -3 +- 113 1 7832 27 Aug 04 22:45 LAG1 6 0 10 -4 +- 66 18 +- 89 3 7832 27 Aug 04 23:51 LAG2 11 0 14 13 +- 20 1 +- 33 2 7832 28 Aug 04 04:01 LAG2 14 0 9 0 +- 26 0 +- 22 9 7832 28 Aug 04 07:37 LAG1 8 0 21 -3 +- 28 11 +- 14 2 7832 28 Aug 04 17:15 LAG2 7 0 7 -22 +- 143 -8 +- 76 1 7832 28 Aug 04 17:37 LAG1 11 0 3 2 +- 24 1 +- 22 2 7832 28 Aug 04 21:13 LAG1 9 0 3 -2 +- 22 0 +- 29 2 7832 28 Aug 04 21:41 LAG2 11 0 7 -1 +- 19 8 +- 25 2 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 24 Aug 04 17:47 LAG2 5 0 14 -8 +- 80 10 +- 192 8 7837 25 Aug 04 14:35 LAG1 10 0 13 -19 +- 87 11 +- 57 8 7837 25 Aug 04 15:47 LAG2 4 0 13 -10 +- 81 -3 +- 385 8 7837 25 Aug 04 19:51 LAG2 21 0 26 2 +- 33 18 +- 25 10 7837 28 Aug 04 13:57 LAG1 5 0 24 13 +- 81 -26 +- 151 4 7837 28 Aug 04 14:08 LAG2 8 0 6 -9 +- 150 8 +- 122 5 7837 28 Aug 04 18:33 LAG2 6 0 224 12 +- 294 168 +- 234 9 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 21 Aug 04 10:57 LAG2 24 0 37 36 +- 19 6 +- 12 3 7838 25 Aug 04 11:23 LAG2 27 0 19 11 +- 18 -6 +- 10 11 7838 25 Aug 04 14:11 LAG1 24 0 13 10 +- 19 3 +- 10 6 7838 25 Aug 04 15:55 LAG2 13 0 22 21 +- 35 -3 +- 32 13 7838 26 Aug 04 12:55 LAG1 9 0 14 1 +- 69 -4 +- 42 10 7838 26 Aug 04 13:39 LAG2 21 0 19 10 +- 20 -6 +- 16 13 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 23 Aug 04 10:40 LAG1 7 0 11 4 +- 17 -8 +- 15 0 7839 23 Aug 04 14:13 LAG1 15 0 9 -9 +- 13 0 +- 8 1 7839 23 Aug 04 17:33 LAG1 16 0 4 0 +- 10 1 +- 4 1 7839 23 Aug 04 18:43 LAG2 17 0 11 -1 +- 10 6 +- 6 2 7839 23 Aug 04 22:39 LAG2 24 0 7 -3 +- 8 3 +- 4 2 7839 24 Aug 04 00:45 LAG1 18 0 15 7 +- 10 -12 +- 10 2 7839 24 Aug 04 07:07 LAG2 6 0 13 -13 +- 17 0 +- 45 1 7839 24 Aug 04 12:55 LAG1 4 0 6 -4 +- 22 -3 +- 11 0 7839 27 Aug 04 08:50 LAG1 3 0 38 -30 +- 26 12 +- 23 0 7839 27 Aug 04 12:23 LAG1 16 0 16 -1 +- 10 -9 +- 6 2 7839 27 Aug 04 15:57 LAG1 11 0 6 2 +- 13 -5 +- 10 1 7839 27 Aug 04 19:03 LAG2 15 0 14 -12 +- 10 -3 +- 6 6 7839 27 Aug 04 19:07 LAG1 13 0 7 -4 +- 11 -3 +- 5 1 7839 27 Aug 04 22:43 LAG1 11 0 3 0 +- 12 -1 +- 6 1 7839 27 Aug 04 23:09 LAG2 22 0 4 -2 +- 8 0 +- 4 3 7839 28 Aug 04 17:25 LAG2 12 0 6 -6 +- 12 0 +- 10 0 7839 28 Aug 04 17:51 LAG1 10 0 11 -9 +- 15 2 +- 10 1 7839 28 Aug 04 21:11 LAG2 10 0 9 -5 +- 13 2 +- 5 2 7839 28 Aug 04 21:15 LAG1 8 0 3 -4 +- 16 -1 +- 6 1 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 21 Aug 04 13:41 LAG1 2 0 16 7 +- 149 -8 +- 129 0 7840 21 Aug 04 22:33 LAG2 11 0 20 16 +- 26 26 +- 25 2 7840 22 Aug 04 00:09 LAG1 3 0 30 19 +- 171 -12 +- 191 2 7840 22 Aug 04 15:53 LAG1 7 0 11 -11 +- 25 5 +- 37 2 7840 22 Aug 04 19:07 LAG1 16 0 14 14 +- 16 1 +- 11 3 7840 23 Aug 04 14:20 LAG1 6 0 7 9 +- 109 1 +- 58 2 7840 25 Aug 04 11:39 LAG1 11 0 3 0 +- 22 -2 +- 21 1 7840 25 Aug 04 22:04 LAG1 16 0 4 -4 +- 18 1 +- 10 2 7840 25 Aug 04 22:59 LAG2 14 0 6 2 +- 18 2 +- 11 3 7840 26 Aug 04 01:53 LAG1 7 0 8 -8 +- 24 1 +- 71 1 7840 26 Aug 04 02:57 LAG2 25 0 7 1 +- 13 -4 +- 7 3 7840 26 Aug 04 07:15 LAG2 7 0 3 -1 +- 26 6 +- 62 2 7840 27 Aug 04 23:00 LAG1 5 0 7 7 +- 42 2 +- 63 2 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 21 Aug 04 00:25 LAG2 15 0 4 -5 +- 17 -2 +- 12 3 7841 22 Aug 04 19:17 LAG1 12 0 13 4 +- 20 5 +- 12 2 7841 22 Aug 04 20:49 LAG2 13 0 6 -3 +- 11 5 +- 12 3 7841 22 Aug 04 22:33 LAG1 14 0 8 -3 +- 12 -5 +- 8 4 7841 23 Aug 04 00:39 LAG2 13 0 8 10 +- 25 2 +- 16 2 7841 23 Aug 04 21:31 LAG1 10 0 14 -10 +- 35 -2 +- 19 1 Station 7845 (Grasse) (position fixed, acc. 20 mm) 7845 23 Aug 04 14:27 LAG1 3 0 2 6 +- 280 5 +- 189 2 7845 24 Aug 04 23:14 LAG1 25 0 4 -1 +- 13 0 +- 7 3 7845 26 Aug 04 20:25 LAG1 29 0 12 -1 +- 12 5 +- 5 3 7845 26 Aug 04 21:27 LAG2 17 0 23 -11 +- 64 13 +- 29 15 7845 27 Aug 04 12:19 LAG1 14 0 18 7 +- 18 -6 +- 8 4 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 22 Aug 04 19:15 LAG1 14 0 5 -1 +- 18 2 +- 10 4 8834 22 Aug 04 21:03 LAG2 4 0 5 -17 +- 97 11 +- 88 0 8834 22 Aug 04 22:45 LAG1 3 0 11 -12 +- 55 -1 +- 108 0 8834 23 Aug 04 01:05 LAG2 8 0 8 -7 +- 33 0 +- 29 1 8834 23 Aug 04 05:11 LAG2 4 0 14 -4 +- 80 -10 +- 91 5 8834 23 Aug 04 14:21 LAG1 5 0 10 -11 +- 75 0 +- 48 2 8834 23 Aug 04 18:19 LAG1 3 0 22 64 +-1328 -15 +- 493 1 8834 23 Aug 04 19:21 LAG2 3 0 6 -28 +- 429 12 +- 237 1 8834 23 Aug 04 21:16 LAG1 2 0 10 -36 +- 358 -16 +- 226 0 8834 23 Aug 04 23:05 LAG2 1 0 3 0 +- 0 0 +- 0 0 8834 24 Aug 04 00:59 LAG1 4 0 8 -10 +- 48 -36 +- 114 4 8834 24 Aug 04 03:17 LAG2 7 0 15 -8 +- 44 -5 +- 37 3 8834 24 Aug 04 19:58 LAG1 4 0 10 -7 +- 44 4 +- 61 1 8834 25 Aug 04 01:11 LAG2 6 0 16 -16 +- 17 -2 +- 30 3 8834 25 Aug 04 05:01 LAG2 12 0 7 3 +- 18 2 +- 15 6 8834 25 Aug 04 15:00 LAG1 1 0 56 0 +- 0 0 +- 0 0 8834 28 Aug 04 07:33 LAG2 2 0 18 -18 +- 38 0 +- 78 0 8834 28 Aug 04 11:05 LAG1 2 0 9 -144 +- 784 -83 +- 480 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 - 040815 0/ 14/ 0 0/ 2/ 0 16 1831 LVIL 040815 - 040828 0/ 4/ 0 0/ 5/ 0 9 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 040830 0/117/ 0 0/ 54/ 0 171 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 040827 0/ 35/ 0 0/ 17/ 0 52 1884 RIGLAS 040310 - 040829 0/ 60/ 1 0/ 9/ 0 70 1893 CRMLAS 040331 - 040829 0/ 38/ 0 0/ 19/ 0 57 6405 TIGO 040103 - 040730 2/ 15/ 2 2/ 4/ 0 25 6810 ZIMLAT 040107 - 040830 124/177/ 25 124/ 95/ 9 554 7080 MLRS25 040104 - 040827 48/ 79/ 12 61/ 66/ 5 271 7090 ML0514 040101 - 040830 184/214/ 42 149/273/ 29 891 7105 ML0725 040104 - 040830 20/ 74/ 8 5/ 65/ 6 178 7110 ML0414 040102 - 040829 91/188/ 18 104/112/ 17 530 7124 ML0819 040315 - 040818 0/ 19/ 0 0/ 15/ 0 34 7210 HOLLAS 040105 - 040607 33/ 49/ 3 50/ 52/ 6 193 7231 WUHA01 040408 - 040728 0/ 2/ 0 0/ 6/ 0 8 7237 CHALAS 040101 - 040830 0/289/ 6 0/165/ 2 462 7249 BEJLAS 040101 - 040830 0/179/ 1 0/130/ 0 310 7308 CRLLAS 040106 - 040311 5/ 47/ 0 0/ 38/ 2 92 7355 TROS02 040509 - 040829 0/ 82/ 0 0/ 34/ 0 116 7405 TIGO 040103 - 040823 0/ 12/ 2 0/ 4/ 0 18 7501 ML0616 040106 - 040830 53/ 50/ 18 75/130/ 13 339 7806 METLAS 040720 - 040814 0/ 4/ 0 0/ 4/ 0 8 7810 ZIMLAT 040507 - 040830 132/ 90/ 21 109/ 37/ 9 398 7811 POLLAS 040105 - 040826 0/ 98/ 0 0/ 45/ 0 143 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 040829 0/106/ 0 0/ 62/ 1 169 7825 STL3 040807 - 040826 13/ 1/ 1 21/ 1/ 2 39 7830 FTLR** 030903 - 030903 0/ 0/ 0 0/ 1/ 0 1 7832 SALRO 040102 - 040830 92/247/ 23 170/215/ 29 776 7835 GRASSE 040301 - 040816 1/ 64/ 3 0/ 33/ 1 102 7836 GFZLAS 040105 - 040701 0/ 38/ 0 0/ 21/ 1 60 7837 CHILAS 040102 - 040830 0/ 59/ 0 0/ 69/ 1 129 7838 SHOLAS 040105 - 040826 22/176/ 2 44/129/ 7 380 7839 AUSLAS 040107 - 040830 76/158/ 24 60/102/ 12 432 7840 RGOLAS 040102 - 040827 115/201/ 36 107/100/ 15 574 7841 GFZLA3 040112 - 040823 20/ 82/ 14 15/ 46/ 10 187 7845 GRASLL 040318 - 040827 8/ 20/ 0 11/ 7/ 0 46 7941 MLROnn 040111 - 040802 102/141/ 22 102/102/ 9 478 8834 WLRS01 040108 - 040829 158/173/ 38 162/106/ 16 653 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 040822.0 128.6 +/- 0.2 509.9 +/- 0.2 -32505.92 +/- 0.02 040823.0 130.0 +/- 0.1 508.5 +/- 0.1 -32506.11 +/- 0.03 040824.0 132.3 +/- 0.1 506.9 +/- 0.1 -32506.19 +/- 0.04 040825.0 134.7 +/- 0.1 504.9 +/- 0.1 -32506.02 +/- 0.05 040826.0 135.9 +/- 0.1 503.9 +/- 0.1 -32505.77 +/- 0.05 040827.0 138.4 +/- 0.2 502.5 +/- 0.1 -32505.51 +/- 0.06 040828.0 141.1 +/- 0.1 501.6 +/- 0.1 -32505.25 +/- 0.06 -------------------------------------------------------------- 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 ******************************************************************************** |