| Date: | 2004-08-03 07:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4154: Delft QL Report August 03, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-08-03 07:15:00 UTC Message No. 4154 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report August 03, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS August 3, 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 2, 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 2, 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 ------------------------------------------------------------------------------ 1864 Maidanak, Uzbekistan (site 2) 040723 - 040730 7 7 1873 Simeiz, Crimea, Ukraine 040727 - 040729 3 2 1884 Riga, Latvia 040726 - 040729 3 1 1893 Kazivili, Crimea, Ukraine 040726 - 040727 2 1 7080 McDonald Obs., Fort Davis, TX 040728 - 040801 3 3 7090 Yarragadee, Australia 040726 - 040801 13 10 7105 Greenbelt, Maryland 040729 - 040729 1 - 7110 Monument Peak, California 040726 - 040731 10 14 7124 Papeete, Tahiti 040727 - 040731 3 - 7231 Wuhan, China (new) 040727 - 040728 2 4 7237 Changchun, China 040730 - 040801 3 3 7355 Urumqi, China (TROS) 040726 - 040801 8 7 7501 Hartebeesthoek, SA (MOB-6) 040727 - 040730 - 12 7810 Zimmerwald 423, Switzerland 040726 - 040802 25 19 7811 Borowiec, Poland 040727 - 040731 4 4 7824 San Fernando, Spain 040726 - 040731 3 4 7832 Riyad, Saudi Arabia 040726 - 040802 7 17 7835 Grasse, France 040726 - 040727 2 1 7837 Shanghai Observatory, China 040726 - 040802 2 5 7838 Simosato Observatory, Japan 040726 - 040729 3 6 7839 Graz, Austria 040727 - 040801 8 9 7840 Herstmonceux, United Kingdom 040726 - 040802 19 9 7841 Potsdam, Germany 040727 - 040802 8 7 7941 Matera, Italy (MLRO 532) 040731 - 040802 7 5 8834 Wettzell, Germany 040727 - 040802 15 14 ------ ------ --- --- TOTAL 040723 - 040802 161 164 ------------------------------------------------------------------------------ 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, Jul 24, 2004 to Sun, Aug 1, 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 26 25 Number of Passes 157/156 168/168 Number of Normal Points 1681/1639 1811/1774 Weighted RMS of Fit (mm) 12 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 1824 (Kiev) (position solved, acc. 200 mm) 1824 24 Jul 04 19:49 LAG1 2 0 0 0 +-5585 0 +-3370 0 Station 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 24 Jul 04 19:26 LAG1 5 0 38 -44 +- 410 -6 +- 258 11 1864 24 Jul 04 19:47 LAG2 7 0 36 -38 +- 243 9 +- 213 7 1864 25 Jul 04 17:47 LAG2 3 0 65 54 +-4585 79 +-3075 0 1864 26 Jul 04 19:43 LAG2 7 0 39 -17 +- 226 15 +- 108 14 1864 26 Jul 04 20:09 LAG1 7 0 84 -65 +- 233 6 +- 95 47 1864 27 Jul 04 18:01 LAG2 6 0 37 -36 +- 246 3 +- 184 7 1864 27 Jul 04 18:51 LAG1 8 0 36 -30 +- 272 3 +- 153 10 1864 28 Jul 04 17:40 LAG1 7 0 35 -17 +- 226 -12 +- 201 26 1864 28 Jul 04 20:06 LAG2 7 0 46 -22 +- 393 19 +- 318 12 1864 29 Jul 04 19:45 LAG1 6 0 34 -35 +- 340 -1 +- 251 9 1864 30 Jul 04 18:19 LAG1 6 0 65 -62 +- 248 -2 +- 119 22 1864 30 Jul 04 20:15 LAG2 6 0 47 -42 +- 247 7 +- 130 6 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 27 Jul 04 19:27 LAG1 5 0 347 464 +- 714 -79 +- 427 44 1873 27 Jul 04 22:13 LAG2 7 0 372 347 +- 790 15 +- 524 47 1873 27 Jul 04 22:41 LAG1 6 0 282 276 +- 250 -11 +- 145 27 1873 29 Jul 04 22:18 LAG2 6 0 676 606 +- 370 29 +- 343 245*CHK* 1873 29 Jul 04 23:39 LAG1 5 0 392 388 +- 268 135 +- 509 42*CHK* Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 25 Jul 04 22:03 LAG1 11 0 7 3 +- 90 -1 +- 74 6 1884 26 Jul 04 20:42 LAG1 9 0 14 -13 +- 100 -4 +- 110 3 1884 26 Jul 04 23:50 LAG2 13 0 6 0 +- 83 3 +- 80 4 1884 27 Jul 04 00:24 LAG1 6 0 15 13 +- 125 9 +- 270 4 1884 29 Jul 04 20:07 LAG1 11 0 45 -44 +- 91 0 +- 81 7 Station 1893 (Kazivili) (position fixed, acc. 100 mm) 1893 26 Jul 04 19:51 LAG2 4 0 17 38 +- 753 50 +- 762 8 1893 26 Jul 04 20:29 LAG1 8 0 26 55 +- 238 35 +- 160 10 1893 27 Jul 04 19:09 LAG1 7 0 19 46 +- 298 31 +- 207 8 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 24 Jul 04 04:50 LAG1 5 0 16 16 +- 50 0 +- 68 1 7080 24 Jul 04 05:04 LAG2 4 0 2 -2 +- 349 2 +- 206 2 7080 28 Jul 04 18:57 LAG1 7 0 19 2 +- 56 14 +- 49 3 7080 29 Jul 04 15:36 LAG2 15 0 7 -3 +- 17 -3 +- 11 3 7080 30 Jul 04 13:53 LAG2 12 0 20 -12 +- 24 -9 +- 24 3 7080 31 Jul 04 03:50 LAG2 4 0 38 93 +- 292 -38 +- 199 2 7080 31 Jul 04 05:34 LAG1 10 0 31 26 +- 22 -6 +- 13 3 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 24 Jul 04 06:19 LAG1 12 0 8 -11 +- 17 4 +- 11 1 7090 24 Jul 04 07:19 LAG2 2 0 0 -8 +- 778 7 +- 727 0 7090 24 Jul 04 11:05 LAG2 20 0 4 -1 +- 9 -2 +- 6 1 7090 25 Jul 04 09:39 LAG2 8 0 4 -5 +- 80 5 +- 48 1 7090 25 Jul 04 13:15 LAG2 19 0 6 5 +- 9 0 +- 5 2 7090 25 Jul 04 17:12 LAG1 6 0 8 -24 +- 161 -13 +- 67 0 7090 25 Jul 04 20:45 LAG1 15 0 6 0 +- 11 -5 +- 9 2 7090 26 Jul 04 03:35 LAG1 7 0 15 -21 +- 22 10 +- 12 2 7090 26 Jul 04 07:17 LAG2 16 0 14 -12 +- 12 -1 +- 11 1 7090 26 Jul 04 11:19 LAG2 23 0 6 1 +- 8 -3 +- 5 2 7090 26 Jul 04 15:25 LAG2 14 0 3 2 +- 11 0 +- 9 2 7090 26 Jul 04 15:59 LAG1 17 0 5 0 +- 10 -3 +- 7 2 7090 26 Jul 04 19:21 LAG1 22 0 7 -7 +- 8 0 +- 5 1 7090 27 Jul 04 02:25 LAG1 4 0 10 -3 +- 95 -5 +- 76 1 7090 27 Jul 04 05:53 LAG1 6 0 20 -42 +- 56 17 +- 40 1 7090 27 Jul 04 09:23 LAG2 15 0 9 -6 +- 10 -3 +- 6 3 7090 27 Jul 04 13:27 LAG2 18 0 15 6 +- 10 -7 +- 6 5 7090 27 Jul 04 21:35 LAG1 8 0 4 -6 +- 22 -4 +- 27 2 7090 28 Jul 04 00:55 LAG1 7 0 10 -9 +- 16 4 +- 30 2 7090 28 Jul 04 07:29 LAG2 10 0 12 -14 +- 14 -6 +- 20 1 7090 28 Jul 04 11:31 LAG2 22 0 7 -1 +- 8 -4 +- 5 3 7090 28 Jul 04 15:53 LAG2 10 0 5 8 +- 19 -8 +- 25 0 7090 28 Jul 04 16:35 LAG1 7 0 4 29 +- 118 12 +- 49 2 7090 28 Jul 04 20:11 LAG1 4 0 11 22 +- 231 5 +- 114 2 7090 29 Jul 04 03:05 LAG1 6 0 20 -23 +- 27 5 +- 31 5 7090 30 Jul 04 07:45 LAG2 13 0 18 -18 +- 11 1 +- 15 0 7090 30 Jul 04 11:45 LAG2 24 0 10 -6 +- 8 -3 +- 4 3 7090 30 Jul 04 16:05 LAG2 6 0 15 15 +- 17 -24 +- 60 1 7090 30 Jul 04 17:23 LAG1 26 0 7 -5 +- 8 -1 +- 3 3 7090 30 Jul 04 20:59 LAG1 13 0 8 8 +- 12 2 +- 12 2 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 29 Jul 04 05:08 LAG1 3 0 5 24 +- 227 -15 +- 119 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 25 Jul 04 15:05 LAG2 3 0 9 -38 +- 320 -20 +- 217 1 7110 26 Jul 04 13:01 LAG2 5 0 16 -20 +- 130 -25 +- 93 1 7110 26 Jul 04 17:17 LAG2 5 0 12 5 +- 63 17 +- 65 3 7110 27 Jul 04 15:26 LAG2 4 0 19 -25 +- 45 -11 +- 74 1 7110 27 Jul 04 20:17 LAG1 3 0 6 6 +- 25 5 +- 99 1 7110 28 Jul 04 04:59 LAG2 13 0 5 2 +- 15 7 +- 16 2 7110 28 Jul 04 06:35 LAG1 9 0 27 36 +- 53 -4 +- 25 2 7110 28 Jul 04 08:59 LAG2 6 0 20 1 +- 17 -10 +- 9 2 7110 28 Jul 04 09:47 LAG1 11 0 7 6 +- 13 1 +- 9 3 7110 28 Jul 04 13:25 LAG2 7 0 10 -17 +- 37 -13 +- 52 2 7110 28 Jul 04 17:30 LAG2 7 0 12 -10 +- 16 4 +- 16 3 7110 29 Jul 04 07:01 LAG2 12 0 7 5 +- 17 2 +- 13 5 7110 29 Jul 04 08:15 LAG1 19 0 6 1 +- 9 2 +- 4 3 7110 29 Jul 04 11:13 LAG2 15 0 15 -2 +- 10 -15 +- 12 6 7110 29 Jul 04 15:39 LAG2 4 0 27 -56 +- 68 -37 +- 79 4 7110 30 Jul 04 00:33 LAG1 4 0 9 8 +- 25 -24 +- 70 4 7110 30 Jul 04 06:55 LAG1 17 0 11 1 +- 10 5 +- 4 3 7110 30 Jul 04 09:18 LAG2 13 0 13 12 +- 12 -9 +- 13 3 7110 30 Jul 04 13:45 LAG2 2 0 20 -30 +- 158 -20 +- 295 0 7110 30 Jul 04 23:03 LAG1 7 0 7 -5 +- 21 0 +- 18 5 7110 31 Jul 04 02:28 LAG1 7 0 11 -9 +- 16 -15 +- 30 2 7110 31 Jul 04 05:37 LAG1 15 0 20 16 +- 10 -5 +- 6 2 7110 31 Jul 04 07:11 LAG2 19 0 6 5 +- 10 2 +- 6 2 7110 31 Jul 04 09:09 LAG1 7 0 6 -6 +- 16 0 +- 8 2 7110 31 Jul 04 11:25 LAG2 14 0 8 7 +- 17 0 +- 15 1 Station 7124 (Papeete) (position fixed, acc. 10 mm) 7124 24 Jul 04 11:17 LAG1 5 0 8 -4 +- 168 -5 +- 72 1 7124 26 Jul 04 08:09 LAG2 4 0 9 7 +- 120 12 +- 90 2 7124 27 Jul 04 14:21 LAG1 5 0 3 0 +- 30 4 +- 56 2 7124 30 Jul 04 10:11 LAG1 9 0 4 -1 +- 20 1 +- 14 1 7124 31 Jul 04 08:53 LAG1 7 0 11 12 +- 41 0 +- 40 2 Station 7231 (Wuhan) (position fixed, acc. 50 mm) 7231 27 Jul 04 14:07 LAG2 5 0 53 -58 +- 80 -8 +- 53 7 7231 27 Jul 04 18:35 LAG2 8 0 36 -20 +- 174 -13 +- 142 4 7231 28 Jul 04 13:53 LAG1 4 0 55 -50 +- 79 8 +- 67 13 7231 28 Jul 04 16:23 LAG2 10 0 536 159 +- 48 367 +- 40 226*CHK* 7231 28 Jul 04 17:25 LAG1 9 0 24 -20 +- 51 11 +- 62 8 7231 28 Jul 04 20:33 LAG2 3 0 34 -71 +-1191 -30 +- 963 1 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 24 Jul 04 12:21 LAG1 10 0 27 7 +- 48 17 +- 33 5 7237 24 Jul 04 12:35 LAG2 2 0 63 -151 +-2778 86 +-2735 0 7237 24 Jul 04 15:43 LAG1 8 0 30 18 +- 56 13 +- 26 7 7237 24 Jul 04 15:55 LAG2 13 0 11 4 +- 42 3 +- 21 8 7237 25 Jul 04 14:03 LAG2 14 0 19 -18 +- 42 -3 +- 30 7 7237 25 Jul 04 14:15 LAG1 15 0 15 0 +- 40 6 +- 20 7 7237 25 Jul 04 17:59 LAG1 7 0 33 33 +- 98 0 +- 101 2 7237 25 Jul 04 18:01 LAG2 19 0 24 23 +- 35 1 +- 25 5 7237 30 Jul 04 14:47 LAG1 2 0 13 141 +-1169 142 +-1216 0 7237 31 Jul 04 13:18 LAG1 7 0 7 5 +- 59 5 +- 56 3 7237 31 Jul 04 14:43 LAG2 16 0 37 30 +- 38 -17 +- 27 4 Station 7355 (Urumqi) (position solved, acc. 10 mm) 7355 26 Jul 04 16:05 LAG2 15 2 32 24 +- 11 11 +- 14 19 7355 26 Jul 04 16:39 LAG1 15 1 42 18 +- 13 15 +- 8 36 7355 26 Jul 04 20:05 LAG2 12 0 13 -2 +- 13 -8 +- 14 11 7355 26 Jul 04 20:29 LAG1 10 3 134 70 +- 34 73 +- 37 7 7355 27 Jul 04 15:35 LAG1 9 2 59 16 +- 18 56 +- 24 23 7355 27 Jul 04 18:05 LAG2 17 6 36 14 +- 12 6 +- 12 32 7355 27 Jul 04 18:53 LAG1 12 3 12 1 +- 22 -1 +- 18 11 7355 28 Jul 04 16:17 LAG2 9 5 7 -40 +- 118 -32 +- 98 2 7355 28 Jul 04 17:37 LAG1 12 0 43 -21 +- 12 33 +- 10 12 7355 31 Jul 04 17:03 LAG1 13 1 42 -36 +- 13 31 +- 10 10 7355 31 Jul 04 18:39 LAG2 18 0 26 -10 +- 10 -5 +- 8 21 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 27 Jul 04 17:05 LAG2 15 0 18 15 +- 10 6 +- 6 3 7501 27 Jul 04 21:07 LAG2 13 0 21 -9 +- 13 14 +- 13 1 7501 28 Jul 04 11:03 LAG2 11 0 7 3 +- 23 0 +- 17 6 7501 28 Jul 04 15:09 LAG2 11 0 28 26 +- 12 15 +- 14 2 7501 28 Jul 04 19:15 LAG2 18 0 13 5 +- 9 7 +- 6 1 7501 29 Jul 04 08:53 LAG2 2 0 5 223 +-1406 120 +- 750 0 7501 29 Jul 04 13:19 LAG2 9 0 6 3 +- 24 2 +- 27 3 7501 29 Jul 04 17:13 LAG2 15 0 18 19 +- 11 3 +- 6 3 7501 29 Jul 04 21:29 LAG2 11 0 7 -7 +- 12 4 +- 20 1 7501 30 Jul 04 07:07 LAG2 3 0 4 3 +- 25 2 +- 27 1 7501 30 Jul 04 11:25 LAG2 8 0 4 -12 +- 61 5 +- 40 1 7501 30 Jul 04 15:27 LAG2 7 0 10 20 +- 32 19 +- 42 1 Station 7806 (Metsahovi) (position fixed, acc. 30 mm) 7806 25 Jul 04 21:49 LAG2 4 0 20 -3 +- 117 14 +- 124 11 7806 25 Jul 04 22:25 LAG1 6 0 10 -37 +- 231 14 +- 115 2 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 24 Jul 04 23:20 LAG1 9 0 5 -1 +- 62 -3 +- 44 2 7810 24 Jul 04 23:35 LAG2 7 0 8 -8 +- 71 6 +- 109 3 7810 25 Jul 04 03:37 LAG2 7 0 8 -6 +- 70 1 +- 98 5 7810 25 Jul 04 11:29 LAG1 16 0 5 -2 +- 48 -1 +- 35 5 7810 25 Jul 04 15:03 LAG1 13 0 10 -8 +- 67 1 +- 40 1 7810 25 Jul 04 18:33 LAG1 16 0 7 -5 +- 45 3 +- 34 2 7810 26 Jul 04 09:39 LAG2 17 0 7 -2 +- 44 -7 +- 45 2 7810 26 Jul 04 10:15 LAG1 10 0 7 -1 +- 59 5 +- 103 7 7810 27 Jul 04 07:58 LAG2 6 0 13 4 +- 89 -10 +- 65 4 7810 27 Jul 04 12:15 LAG1 15 0 11 -10 +- 47 -2 +- 25 4 7810 27 Jul 04 15:51 LAG1 10 0 5 2 +- 61 4 +- 51 3 7810 27 Jul 04 19:15 LAG1 17 0 6 2 +- 45 4 +- 31 2 7810 27 Jul 04 21:42 LAG2 12 0 10 -5 +- 57 7 +- 42 5 7810 27 Jul 04 22:39 LAG1 12 0 6 2 +- 84 0 +- 45 5 7810 28 Jul 04 01:54 LAG2 8 0 13 13 +- 82 -1 +- 59 3 7810 28 Jul 04 05:49 LAG2 19 0 7 4 +- 44 -4 +- 30 3 7810 28 Jul 04 09:57 LAG2 14 0 10 -5 +- 48 -10 +- 61 2 7810 28 Jul 04 11:07 LAG1 8 0 18 -18 +- 64 -1 +- 113 1 7810 28 Jul 04 14:27 LAG1 29 0 9 -10 +- 50 -1 +- 28 4 7810 28 Jul 04 17:57 LAG1 13 0 8 -8 +- 53 0 +- 33 1 7810 28 Jul 04 20:09 LAG2 4 0 13 12 +- 91 3 +- 333 2 7810 28 Jul 04 21:17 LAG1 23 0 13 0 +- 38 -6 +- 19 3 7810 28 Jul 04 23:47 LAG2 16 0 7 -4 +- 45 2 +- 25 3 7810 29 Jul 04 00:53 LAG1 15 0 13 -1 +- 47 -8 +- 32 4 7810 29 Jul 04 03:49 LAG2 20 0 8 -3 +- 45 -5 +- 30 2 7810 29 Jul 04 07:55 LAG2 20 0 14 7 +- 40 -8 +- 29 4 7810 29 Jul 04 13:13 LAG1 13 0 15 -7 +- 50 -7 +- 28 2 7810 29 Jul 04 16:37 LAG1 11 0 8 6 +- 55 3 +- 46 3 7810 29 Jul 04 19:59 LAG1 17 0 11 -5 +- 46 4 +- 28 3 7810 29 Jul 04 21:57 LAG2 10 0 15 -14 +- 57 5 +- 48 3 7810 29 Jul 04 23:29 LAG1 13 0 13 7 +- 61 -4 +- 37 2 7810 30 Jul 04 02:13 LAG2 13 0 6 -2 +- 73 5 +- 52 1 7810 30 Jul 04 06:05 LAG2 13 0 11 9 +- 73 -1 +- 55 2 7810 31 Jul 04 10:35 LAG1 2 0 3 0 +- 173 -13 +- 626 0 7810 31 Jul 04 14:14 LAG1 1 0 26 0 +- 0 0 +- 0 0 7810 31 Jul 04 17:23 LAG1 15 0 12 12 +- 47 0 +- 32 3 7810 31 Jul 04 20:47 LAG1 17 0 19 -19 +- 45 -1 +- 28 2 7810 31 Jul 04 22:05 LAG2 18 0 9 -3 +- 46 -4 +- 27 2 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 27 Jul 04 21:55 LAG2 15 0 12 4 +- 48 8 +- 43 6 7811 27 Jul 04 22:47 LAG1 13 0 14 7 +- 54 -6 +- 43 5 7811 28 Jul 04 21:24 LAG1 16 0 21 20 +- 45 -4 +- 30 4 7811 28 Jul 04 23:57 LAG2 17 0 11 10 +- 44 3 +- 36 5 7811 29 Jul 04 20:05 LAG1 14 0 15 14 +- 48 1 +- 36 5 7811 29 Jul 04 22:12 LAG2 14 0 7 -4 +- 59 7 +- 52 3 7811 29 Jul 04 23:35 LAG1 18 0 24 22 +- 43 -5 +- 31 7 7811 31 Jul 04 00:11 LAG2 13 0 15 14 +- 50 -2 +- 35 4 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 26 Jul 04 20:51 LAG1 4 0 56 60 +- 93 -3 +- 60 2 7824 27 Jul 04 03:58 LAG2 2 0 67 27 +- 662 51 +- 836 0 7824 29 Jul 04 00:01 LAG2 2 0 57 71 +- 997 -23 +-1611 0 7824 30 Jul 04 22:35 LAG1 5 0 42 62 +- 340 -10 +- 182 0 7824 31 Jul 04 00:22 LAG2 1 0 67 0 +- 0 0 +- 0 0 7824 31 Jul 04 01:45 LAG1 19 0 52 56 +- 30 -15 +- 21 4 7824 31 Jul 04 22:27 LAG2 6 0 27 60 +- 297 -22 +- 192 5 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 24 Jul 04 01:35 LAG2 9 0 15 -9 +- 62 -25 +- 66 2 7832 24 Jul 04 05:58 LAG2 13 0 5 3 +- 20 -3 +- 13 2 7832 24 Jul 04 19:22 LAG2 4 0 22 -5 +- 270 9 +- 149 4 7832 24 Jul 04 23:37 LAG2 11 0 6 -3 +- 20 -9 +- 34 2 7832 25 Jul 04 03:57 LAG2 12 0 6 -4 +- 23 0 +- 25 4 7832 26 Jul 04 06:11 LAG2 15 0 8 7 +- 17 0 +- 12 4 7832 26 Jul 04 19:47 LAG2 11 0 10 -7 +- 21 10 +- 23 5 7832 26 Jul 04 20:21 LAG1 10 0 7 6 +- 21 0 +- 21 3 7832 27 Jul 04 00:03 LAG2 8 0 5 -6 +- 35 11 +- 55 2 7832 27 Jul 04 04:35 LAG2 4 0 7 13 +- 168 -7 +- 154 4 7832 27 Jul 04 17:57 LAG2 7 0 4 0 +- 26 5 +- 60 3 7832 27 Jul 04 18:57 LAG1 9 0 6 8 +- 36 4 +- 32 2 7832 27 Jul 04 21:51 LAG2 9 0 10 -5 +- 29 7 +- 37 2 7832 27 Jul 04 22:31 LAG1 10 0 8 -7 +- 20 -2 +- 24 3 7832 28 Jul 04 02:27 LAG2 7 0 12 8 +- 43 0 +- 77 8 7832 28 Jul 04 06:23 LAG2 13 0 20 17 +- 19 -6 +- 20 3 7832 30 Jul 04 20:23 LAG2 11 0 23 -24 +- 48 0 +- 31 2 7832 31 Jul 04 18:25 LAG2 6 0 12 11 +- 31 -3 +- 64 5 7832 31 Jul 04 20:46 LAG1 9 0 11 -18 +- 57 3 +- 25 2 7832 31 Jul 04 22:29 LAG2 10 0 5 -5 +- 26 5 +- 38 3 Station 7835 (Grasse) (position fixed, acc. 30 mm) 7835 26 Jul 04 20:39 LAG1 14 0 9 9 +- 26 -1 +- 14 1 7835 26 Jul 04 23:39 LAG2 16 0 5 0 +- 24 4 +- 20 1 7835 27 Jul 04 00:10 LAG1 20 0 7 -1 +- 25 -3 +- 14 1 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 26 Jul 04 13:09 LAG1 10 0 29 -29 +- 49 3 +- 61 4 7837 26 Jul 04 16:37 LAG2 5 0 12 0 +- 867 -6 +- 421 3 7837 26 Jul 04 16:51 LAG1 4 0 6 -30 +- 375 17 +- 216 2 7837 26 Jul 04 20:29 LAG2 3 0 46 39 +- 541 -9 +- 807 3 7837 27 Jul 04 18:39 LAG2 5 0 14 -15 +- 246 2 +- 283 5 7837 29 Jul 04 18:39 LAG2 13 0 13 -2 +- 42 -14 +- 59 7 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 26 Jul 04 12:15 LAG2 17 0 18 17 +- 23 -5 +- 23 5 7838 26 Jul 04 12:56 LAG1 17 0 31 11 +- 23 12 +- 15 20 7838 26 Jul 04 16:03 LAG2 17 0 14 16 +- 35 4 +- 23 7 7838 26 Jul 04 16:39 LAG1 14 0 13 11 +- 42 1 +- 28 4 7838 27 Jul 04 00:35 LAG2 14 0 20 20 +- 28 12 +- 27 7 7838 27 Jul 04 14:11 LAG2 24 0 20 5 +- 19 -11 +- 12 6 7838 27 Jul 04 15:01 LAG1 20 0 7 2 +- 21 -1 +- 12 6 7838 27 Jul 04 18:25 LAG2 21 0 18 16 +- 20 2 +- 18 8 7838 29 Jul 04 00:56 LAG2 8 0 25 -14 +- 39 20 +- 61 8 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 25 Jul 04 21:43 LAG2 9 0 22 -10 +- 17 19 +- 12 1 7839 25 Jul 04 22:07 LAG1 14 0 6 -7 +- 19 0 +- 9 1 7839 26 Jul 04 02:03 LAG2 2 0 8 19 +- 543 -7 +- 388 0 7839 27 Jul 04 19:07 LAG1 22 0 9 -7 +- 9 2 +- 5 0 7839 27 Jul 04 21:43 LAG2 10 0 18 -14 +- 13 8 +- 8 2 7839 27 Jul 04 22:43 LAG1 16 0 9 -7 +- 10 -1 +- 5 2 7839 28 Jul 04 02:01 LAG2 10 0 9 -11 +- 16 3 +- 11 1 7839 28 Jul 04 02:35 LAG1 11 0 7 -6 +- 15 -3 +- 27 1 7839 28 Jul 04 05:55 LAG2 14 0 9 1 +- 11 -5 +- 6 0 7839 29 Jul 04 21:53 LAG2 11 0 26 -20 +- 14 5 +- 8 3 7839 29 Jul 04 23:27 LAG1 22 0 7 -1 +- 9 -3 +- 4 2 7839 30 Jul 04 01:55 LAG2 9 0 19 -11 +- 52 4 +- 28 0 7839 30 Jul 04 06:01 LAG2 16 0 6 3 +- 19 -1 +- 12 1 7839 30 Jul 04 15:25 LAG1 8 0 4 2 +- 16 5 +- 20 0 7839 31 Jul 04 17:21 LAG1 15 0 6 6 +- 10 -1 +- 6 1 7839 31 Jul 04 18:37 LAG2 4 0 19 21 +- 29 -9 +- 100 0 7839 31 Jul 04 20:39 LAG1 13 0 15 -16 +- 13 -2 +- 7 3 7839 31 Jul 04 22:03 LAG2 22 0 5 -4 +- 8 -1 +- 4 2 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 24 Jul 04 00:41 LAG1 12 0 15 9 +- 28 -4 +- 17 1 7840 24 Jul 04 01:09 LAG2 25 0 6 0 +- 13 3 +- 8 4 7840 24 Jul 04 05:33 LAG2 12 0 8 10 +- 24 -7 +- 19 2 7840 24 Jul 04 09:31 LAG2 10 0 6 -3 +- 21 -7 +- 32 3 7840 24 Jul 04 12:55 LAG1 8 0 10 12 +- 37 2 +- 28 3 7840 24 Jul 04 16:27 LAG1 6 0 7 25 +- 145 14 +- 73 3 7840 24 Jul 04 19:53 LAG1 14 0 9 6 +- 18 6 +- 12 1 7840 26 Jul 04 21:09 LAG1 5 0 1 16 +- 303 -6 +- 128 0 7840 26 Jul 04 23:43 LAG2 14 0 8 0 +- 18 8 +- 18 1 7840 27 Jul 04 00:11 LAG1 12 0 6 -5 +- 20 0 +- 14 2 7840 27 Jul 04 12:23 LAG1 14 0 13 -11 +- 17 -6 +- 13 2 7840 27 Jul 04 15:53 LAG1 12 0 7 -6 +- 21 1 +- 13 2 7840 27 Jul 04 19:21 LAG1 14 0 4 3 +- 18 2 +- 14 1 7840 27 Jul 04 21:59 LAG2 9 0 9 -11 +- 27 10 +- 28 2 7840 27 Jul 04 22:45 LAG1 15 0 8 2 +- 17 -3 +- 7 5 7840 28 Jul 04 01:37 LAG2 16 0 9 1 +- 22 4 +- 13 4 7840 28 Jul 04 02:31 LAG1 14 0 7 -5 +- 17 -2 +- 21 3 7840 28 Jul 04 05:45 LAG2 17 0 12 8 +- 16 -4 +- 11 3 7840 28 Jul 04 14:37 LAG1 9 0 10 -12 +- 26 -5 +- 21 1 7840 28 Jul 04 18:03 LAG1 3 0 2 -20 +- 372 -10 +- 200 0 7840 28 Jul 04 21:23 LAG1 17 0 18 8 +- 16 -8 +- 7 3 7840 28 Jul 04 23:49 LAG2 12 0 9 -3 +- 19 4 +- 10 3 7840 29 Jul 04 01:03 LAG1 18 0 13 0 +- 16 -9 +- 11 4 7840 29 Jul 04 03:49 LAG2 19 0 6 1 +- 15 -3 +- 9 3 7840 29 Jul 04 08:01 LAG2 18 0 14 6 +- 16 -11 +- 13 2 7840 30 Jul 04 11:49 LAG1 12 0 12 0 +- 19 -12 +- 18 2 7840 30 Jul 04 18:49 LAG1 4 0 20 -5 +- 223 8 +- 124 3 7840 30 Jul 04 22:23 LAG1 14 0 8 2 +- 21 3 +- 12 3 7840 31 Jul 04 20:51 LAG1 11 0 6 -9 +- 30 -3 +- 19 2 7840 31 Jul 04 22:15 LAG2 14 0 2 0 +- 20 -1 +- 16 1 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 24 Jul 04 19:47 LAG1 20 0 6 0 +- 9 3 +- 5 3 7841 24 Jul 04 23:17 LAG1 11 0 10 0 +- 17 -6 +- 11 3 7841 24 Jul 04 23:45 LAG2 8 0 3 -3 +- 28 4 +- 28 2 7841 25 Jul 04 03:27 LAG2 19 0 11 0 +- 10 8 +- 7 4 7841 27 Jul 04 22:06 LAG2 11 1 9 0 +- 25 7 +- 22 4 7841 27 Jul 04 22:46 LAG1 11 0 5 -5 +- 17 -3 +- 13 3 7841 28 Jul 04 01:59 LAG2 15 0 6 -2 +- 13 3 +- 10 4 7841 28 Jul 04 21:21 LAG1 17 0 14 3 +- 10 -8 +- 6 1 7841 28 Jul 04 23:48 LAG2 10 0 10 -25 +- 42 -11 +- 25 4 7841 29 Jul 04 20:01 LAG1 17 0 1 1 +- 10 0 +- 6 1 7841 29 Jul 04 22:13 LAG2 7 0 13 -13 +- 16 0 +- 33 2 7841 29 Jul 04 23:47 LAG1 10 0 9 10 +- 16 -3 +- 16 1 7841 30 Jul 04 18:40 LAG1 20 0 14 -8 +- 9 7 +- 5 3 7841 30 Jul 04 22:09 LAG1 18 0 6 2 +- 10 3 +- 6 2 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 24 Jul 04 00:51 LAG1 9 0 5 7 +- 21 -8 +- 22 1 7941 24 Jul 04 01:13 LAG2 20 0 3 0 +- 10 -1 +- 6 2 7941 24 Jul 04 09:47 LAG2 10 0 7 -5 +- 18 7 +- 23 5 7941 24 Jul 04 12:49 LAG1 9 0 6 21 +- 65 8 +- 28 3 7941 24 Jul 04 16:25 LAG1 7 0 13 -4 +- 49 5 +- 33 2 7941 24 Jul 04 19:43 LAG1 14 0 9 6 +- 11 3 +- 7 2 7941 25 Jul 04 07:34 LAG2 11 0 5 0 +- 25 0 +- 18 4 7941 31 Jul 04 17:35 LAG1 6 0 12 13 +- 19 -4 +- 36 1 7941 31 Jul 04 20:41 LAG1 16 0 11 -10 +- 10 -1 +- 6 1 7941 31 Jul 04 22:29 LAG2 14 0 6 0 +- 28 3 +- 16 1 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 24 Jul 04 09:42 LAG2 1 0 6 0 +- 0 0 +- 0 0 8834 25 Jul 04 03:57 LAG2 6 0 17 -36 +- 96 12 +- 62 1 8834 25 Jul 04 07:36 LAG2 13 0 13 -11 +- 12 -3 +- 10 7 8834 25 Jul 04 11:23 LAG1 12 0 6 -10 +- 27 -3 +- 15 3 8834 25 Jul 04 15:03 LAG1 3 0 17 -205 +- 437 -83 +- 189 2 8834 25 Jul 04 22:19 LAG1 2 0 8 7 +- 440 -12 +- 338 0 8834 27 Jul 04 04:13 LAG2 7 0 15 -35 +- 85 12 +- 48 3 8834 27 Jul 04 07:57 LAG2 2 0 13 -14 +- 315 -1 +- 322 0 8834 27 Jul 04 19:19 LAG1 10 0 15 -12 +- 16 3 +- 14 2 8834 27 Jul 04 22:53 LAG1 11 0 7 -6 +- 13 0 +- 11 3 8834 28 Jul 04 06:08 LAG2 10 0 6 -4 +- 16 4 +- 20 4 8834 28 Jul 04 21:29 LAG1 4 0 10 -16 +- 90 -19 +- 71 3 8834 28 Jul 04 23:53 LAG2 7 0 13 -18 +- 59 -3 +- 40 2 8834 29 Jul 04 04:01 LAG2 10 0 6 -11 +- 22 -8 +- 20 1 8834 29 Jul 04 08:11 LAG2 12 0 7 6 +- 13 -6 +- 14 3 8834 29 Jul 04 09:31 LAG1 3 0 30 -47 +- 362 -16 +- 347 1 8834 29 Jul 04 20:28 LAG1 3 0 4 34 +- 296 -18 +- 153 2 8834 29 Jul 04 22:19 LAG2 6 0 14 -19 +- 41 6 +- 47 1 8834 29 Jul 04 23:43 LAG1 7 0 4 4 +- 15 1 +- 21 2 8834 30 Jul 04 02:19 LAG2 7 0 4 -6 +- 26 5 +- 35 1 8834 30 Jul 04 06:13 LAG2 6 0 3 0 +- 22 2 +- 19 1 8834 30 Jul 04 11:37 LAG1 17 0 8 4 +- 11 -1 +- 5 5 8834 30 Jul 04 15:33 LAG1 2 0 12 -12 +- 29 27 +- 301 0 8834 30 Jul 04 22:27 LAG1 8 0 13 -24 +- 28 17 +- 20 3 8834 30 Jul 04 23:59 LAG2 5 0 16 -33 +- 305 -7 +- 136 2 8834 31 Jul 04 08:09 LAG2 12 0 9 -10 +- 16 -6 +- 14 5 -------------------------------------------------------------------------------- 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 - 040724 0/ 13/ 0 0/ 2/ 0 15 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 040730 0/103/ 0 0/ 38/ 0 141 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 040729 0/ 35/ 0 0/ 15/ 0 50 1884 RIGLAS 040310 - 040729 0/ 48/ 0 0/ 4/ 0 52 1893 CRMLAS 040331 - 040727 0/ 30/ 0 0/ 14/ 0 44 6405 TIGO 040103 - 040226 1/ 10/ 2 1/ 0/ 0 14 6810 ZIMLAT 040107 - 040621 93/161/ 22 116/ 79/ 8 479 7080 MLRS25 040104 - 040801 39/ 76/ 12 57/ 63/ 5 252 7090 ML0514 040101 - 040801 172/173/ 41 124/249/ 26 785 7105 ML0725 040104 - 040729 20/ 61/ 7 5/ 45/ 5 143 7110 ML0414 040102 - 040731 81/172/ 16 96/ 92/ 13 470 7124 ML0819 040315 - 040731 0/ 12/ 0 0/ 14/ 0 26 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 - 040801 0/255/ 6 0/128/ 2 391 7249 BEJLAS 040101 - 040713 0/177/ 1 0/125/ 0 303 7308 CRLLAS 040106 - 040311 5/ 47/ 0 0/ 38/ 2 92 7355 TROS02 040509 - 040801 0/ 72/ 0 0/ 25/ 0 97 7405 TIGO 040103 - 040215 0/ 9/ 2 0/ 0/ 0 11 7501 ML0616 040106 - 040730 53/ 50/ 18 49/114/ 10 294 7806 METLAS 040720 - 040725 0/ 2/ 0 0/ 3/ 0 5 7810 ZIMLAT 040507 - 040802 98/ 72/ 18 98/ 19/ 8 313 7811 POLLAS 040105 - 040731 0/ 89/ 0 0/ 28/ 0 117 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 040731 0/ 91/ 0 0/ 56/ 1 148 7832 SALRO 040102 - 040802 82/213/ 23 155/172/ 24 669 7835 GRASSE 040301 - 040727 1/ 60/ 3 0/ 29/ 1 94 7836 GFZLAS 040105 - 040701 0/ 38/ 0 0/ 21/ 1 60 7837 CHILAS 040102 - 040802 0/ 39/ 0 0/ 40/ 1 80 7838 SHOLAS 040105 - 040729 20/165/ 2 44/114/ 7 352 7839 AUSLAS 040107 - 040801 48/131/ 18 53/ 75/ 8 333 7840 RGOLAS 040102 - 040802 96/186/ 34 100/ 87/ 15 518 7841 GFZLA3 040112 - 040802 14/ 66/ 12 13/ 30/ 6 141 7845 GRASLL 040318 - 040712 2/ 15/ 0 9/ 2/ 0 28 7941 MLROnn 040111 - 040802 102/141/ 22 101/102/ 9 477 8834 WLRS01 040108 - 040802 133/149/ 35 143/ 80/ 13 553 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 040725.0 55.8 +/- 0.1 519.5 +/- 0.2 -32509.09 +/- 0.02 040726.0 59.3 +/- 0.1 519.7 +/- 0.1 -32509.21 +/- 0.03 040727.0 61.5 +/- 0.1 519.5 +/- 0.1 -32509.06 +/- 0.04 040728.0 64.0 +/- 0.1 518.9 +/- 0.1 -32508.74 +/- 0.05 040729.0 66.3 +/- 0.1 518.4 +/- 0.1 -32508.11 +/- 0.05 040730.0 68.4 +/- 0.1 517.9 +/- 0.1 -32507.51 +/- 0.06 040731.0 70.5 +/- 0.1 517.1 +/- 0.1 -32506.90 +/- 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 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 ******************************************************************************** |