| Date: | 2004-07-13 11:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4089: Delft QL Report July 13, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-07-13 11:15:00 UTC Message No. 4089 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report July 13, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS July 13, 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, Jul 12, 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, Jul 12, 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) 040705 - 040710 6 5 1873 Simeiz, Crimea, Ukraine 040705 - 040711 6 4 1893 Kazivili, Crimea, Ukraine 040705 - 040710 5 2 7080 McDonald Obs., Fort Davis, TX 040706 - 040711 6 8 7105 Greenbelt, Maryland 040701 - 040709 8 5 7110 Monument Peak, California 040707 - 040710 14 7 7124 Papeete, Tahiti 040708 - 040708 1 - 7355 Urumqi, China (TROS) 040707 - 040712 5 4 7501 Hartebeesthoek, SA (MOB-6) 040705 - 040706 - 4 7810 Zimmerwald 423, Switzerland 040707 - 040711 9 2 7811 Borowiec, Poland 040706 - 040710 4 1 7824 San Fernando, Spain 040707 - 040710 3 1 7832 Riyad, Saudi Arabia 040705 - 040712 12 13 7835 Grasse, France 040702 - 040707 3 2 7837 Shanghai Observatory, China 040711 - 040711 1 1 7838 Simosato Observatory, Japan 040707 - 040709 2 2 7839 Graz, Austria 040704 - 040712 4 4 7840 Herstmonceux, United Kingdom 040701 - 040710 9 9 7841 Potsdam, Germany 040706 - 040710 7 3 7845 Grasse, France (LLR) 040705 - 040705 1 1 7941 Matera, Italy (MLRO 532) 040703 - 040711 23 19 8834 Wettzell, Germany 040705 - 040711 16 10 ------ ------ --- --- TOTAL 040701 - 040712 145 107 ------------------------------------------------------------------------------ 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 3, 2004 to Sun, Jul 11, 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 23 22 Number of Passes 172/170 127/125 Number of Normal Points 1627/1571 1365/1332 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 1824 (Kiev) (position solved, acc. 200 mm) 1824 4 Jul 04 22:20 LAG1 5 0 4 0 +-1216 0 +- 699 4 Station 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 5 Jul 04 19:37 LAG2 9 0 21 -15 +- 209 -7 +- 236 10 1864 5 Jul 04 20:41 LAG1 8 0 50 -48 +- 214 -9 +- 131 14 1864 6 Jul 04 19:19 LAG1 9 0 46 -40 +- 200 -4 +- 94 20 1864 6 Jul 04 21:41 LAG2 9 0 26 -21 +- 225 5 +- 230 7 1864 7 Jul 04 19:47 LAG2 11 0 28 -15 +- 181 17 +- 161 16 1864 7 Jul 04 21:31 LAG1 7 0 43 -30 +- 237 14 +- 186 14 1864 8 Jul 04 16:47 LAG1 7 0 34 -29 +- 226 0 +- 216 17 1864 8 Jul 04 21:47 LAG2 9 0 37 -19 +- 278 12 +- 185 13 1864 9 Jul 04 18:47 LAG1 10 0 36 -31 +- 189 -2 +- 106 17 1864 9 Jul 04 19:59 LAG2 10 0 40 -36 +- 189 11 +- 145 11 1864 10 Jul 04 20:55 LAG1 5 0 36 -38 +- 327 -3 +- 180 7 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 3 Jul 04 20:20 LAG1 1 0 35 0 +- 0 0 +- 0 0 1873 5 Jul 04 23:19 LAG2 7 0 171 99 +-1248 -27 +- 706 88 1873 6 Jul 04 00:33 LAG1 4 0 149 320 +-1429 179 +-1334 56 1873 6 Jul 04 21:51 LAG2 4 0 202 158 +- 707 83 +-1266 24 1873 7 Jul 04 21:42 LAG1 7 0 653 568 +- 607 -41 +- 392 177 1873 8 Jul 04 23:53 LAG1 10 0 314 297 +- 309 26 +- 260 154 1873 9 Jul 04 19:01 LAG1 5 0 354 389 +- 337 57 +- 215 92*CHK* 1873 10 Jul 04 00:01 LAG2 6 0 769 670 +- 279 145 +- 278 158*CHK* 1873 10 Jul 04 21:31 LAG1 6 0 260 525 +-1238 -143 +- 628 53 1873 10 Jul 04 21:58 LAG2 9 0 270 265 +- 258 -1 +- 274 43 Station 1893 (Kazivili) (position fixed, acc. 100 mm) 1893 5 Jul 04 20:59 LAG1 12 0 23 10 +- 86 13 +- 74 13 1893 6 Jul 04 19:59 LAG1 7 0 29 -33 +- 684 28 +- 319 7 1893 8 Jul 04 20:41 LAG1 3 0 37 17 +-1024 13 +- 891 19 1893 8 Jul 04 21:55 LAG2 2 0 53 -46 +-3997 9 +-5661 0 1893 9 Jul 04 19:05 LAG1 5 0 29 0 +- 462 -13 +- 352 23 1893 10 Jul 04 21:05 LAG1 13 0 34 21 +- 98 23 +- 66 18 1893 10 Jul 04 21:59 LAG2 7 0 28 12 +- 340 33 +- 289 7 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 6 Jul 04 04:42 LAG1 1 0 15 0 +- 0 0 +- 0 0 7080 6 Jul 04 06:37 LAG2 14 0 6 5 +- 17 -2 +- 20 2 7080 6 Jul 04 08:01 LAG1 7 0 4 5 +- 39 4 +- 38 3 7080 6 Jul 04 10:39 LAG2 9 0 16 5 +- 33 -13 +- 39 2 7080 6 Jul 04 14:55 LAG2 4 0 9 -61 +- 311 -48 +- 222 2 7080 7 Jul 04 06:46 LAG1 9 0 6 1 +- 29 3 +- 23 3 7080 7 Jul 04 08:59 LAG2 5 0 3 4 +- 91 -2 +- 95 2 7080 7 Jul 04 10:27 LAG1 8 0 2 0 +- 70 0 +- 55 2 7080 7 Jul 04 13:17 LAG2 6 0 5 -17 +- 114 12 +- 106 1 7080 8 Jul 04 05:22 LAG1 10 0 9 9 +- 21 -1 +- 24 2 7080 8 Jul 04 06:49 LAG2 14 0 9 9 +- 17 1 +- 18 2 7080 9 Jul 04 07:26 LAG1 14 0 15 13 +- 18 1 +- 12 5 7080 9 Jul 04 08:51 LAG2 14 0 9 4 +- 18 -4 +- 10 2 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 6 Jul 04 04:31 LAG1 8 0 8 8 +- 14 0 +- 19 1 7105 6 Jul 04 06:48 LAG2 11 0 4 -1 +- 14 -2 +- 15 4 7105 6 Jul 04 07:59 LAG1 16 0 12 -10 +- 10 7 +- 9 3 7105 7 Jul 04 03:29 LAG1 5 0 17 -9 +- 143 -3 +- 71 2 7105 7 Jul 04 05:23 LAG2 4 0 9 -37 +- 222 28 +- 143 3 7105 7 Jul 04 06:38 LAG1 12 0 16 10 +- 17 3 +- 9 4 7105 8 Jul 04 05:13 LAG1 17 0 3 2 +- 10 0 +- 6 2 7105 8 Jul 04 06:55 LAG2 13 0 5 -5 +- 12 0 +- 6 3 7105 9 Jul 04 04:11 LAG1 8 0 11 29 +- 62 -16 +- 31 7 7105 9 Jul 04 05:11 LAG2 13 0 8 2 +- 11 1 +- 13 8 7105 9 Jul 04 07:19 LAG1 7 0 8 18 +- 57 14 +- 36 3 7105 9 Jul 04 09:23 LAG2 9 0 12 -2 +- 19 -12 +- 24 3 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 3 Jul 04 02:01 LAG1 5 2 21 -21 +- 71 0 +- 113 2 7110 3 Jul 04 05:19 LAG1 1 0 20 0 +- 0 0 +- 0 0 7110 3 Jul 04 08:13 LAG2 6 0 6 8 +- 58 11 +- 52 3 7110 3 Jul 04 08:31 LAG1 20 0 8 -7 +- 9 0 +- 4 2 7110 3 Jul 04 12:11 LAG2 8 0 14 6 +- 20 -8 +- 20 1 7110 7 Jul 04 00:21 LAG1 3 0 6 11 +- 139 -5 +- 123 3 7110 7 Jul 04 03:34 LAG1 3 0 21 -21 +- 25 6 +- 112 0 7110 7 Jul 04 10:31 LAG1 6 0 4 -14 +- 65 9 +- 47 1 7110 7 Jul 04 13:11 LAG2 3 0 4 19 +- 301 -20 +- 268 1 7110 8 Jul 04 05:35 LAG1 10 0 3 3 +- 21 -2 +- 18 2 7110 8 Jul 04 06:48 LAG2 13 0 4 0 +- 12 3 +- 13 2 7110 8 Jul 04 08:51 LAG1 15 0 4 0 +- 11 2 +- 7 2 7110 8 Jul 04 10:55 LAG2 10 0 5 -1 +- 14 -5 +- 18 1 7110 8 Jul 04 19:23 LAG2 2 0 14 -116 +- 693 -203 +-1375 0 7110 8 Jul 04 21:29 LAG1 9 0 14 17 +- 20 -4 +- 12 6 7110 9 Jul 04 00:55 LAG1 8 0 3 0 +- 14 -2 +- 17 2 7110 9 Jul 04 04:11 LAG1 11 0 3 0 +- 12 -3 +- 16 2 7110 9 Jul 04 07:51 LAG1 8 0 13 11 +- 81 0 +- 35 0 7110 9 Jul 04 08:45 LAG2 18 0 7 -6 +- 10 -4 +- 7 1 7110 9 Jul 04 11:03 LAG1 8 0 5 -2 +- 15 2 +- 15 4 7110 9 Jul 04 12:55 LAG2 17 0 6 -2 +- 10 -5 +- 8 2 7110 9 Jul 04 17:27 LAG2 3 0 24 -42 +- 105 -32 +- 175 3 7110 9 Jul 04 23:33 LAG1 8 0 16 8 +- 18 -10 +- 19 1 7110 10 Jul 04 03:03 LAG1 6 0 5 6 +- 26 -5 +- 42 3 7110 10 Jul 04 06:07 LAG1 14 0 3 -2 +- 11 0 +- 6 2 7110 10 Jul 04 09:40 LAG1 12 0 5 0 +- 14 -2 +- 8 2 Station 7124 (Papeete) (position fixed, acc. 10 mm) 7124 5 Jul 04 07:37 LAG2 15 0 14 4 +- 10 9 +- 7 3 7124 8 Jul 04 12:09 LAG1 3 0 5 2 +- 86 -3 +- 88 1 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 3 Jul 04 16:17 LAG1 3 0 14 64 +- 774 36 +- 519 7 Station 7355 (Urumqi) (position solved, acc. 10 mm) 7355 3 Jul 04 19:49 LAG2 5 2 111 -96 +- 192 156 +- 145 7 7355 3 Jul 04 20:01 LAG1 9 1 14 1 +- 15 15 +- 20 9 7355 4 Jul 04 15:25 LAG1 5 2 84 437 +- 227 -218 +- 136 1*CHK* 7355 4 Jul 04 18:33 LAG1 13 0 62 -59 +- 11 1 +- 8 19 7355 7 Jul 04 17:57 LAG1 13 2 24 -14 +- 14 8 +- 11 11 7355 7 Jul 04 19:49 LAG2 20 7 56 64 +- 14 33 +- 12 21 7355 10 Jul 04 17:31 LAG1 10 7 24 -3 +- 30 49 +- 69 3 7355 10 Jul 04 18:23 LAG2 9 2 33 24 +- 16 35 +- 27 19 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 3 Jul 04 18:25 LAG2 19 0 5 0 +- 10 3 +- 8 3 7501 5 Jul 04 18:35 LAG2 18 0 9 6 +- 9 6 +- 8 3 7501 6 Jul 04 12:51 LAG2 6 0 6 27 +- 222 -13 +- 96 3 7501 6 Jul 04 16:34 LAG2 15 0 9 -4 +- 10 4 +- 11 6 7501 6 Jul 04 20:45 LAG2 19 0 16 15 +- 9 0 +- 4 5 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 3 Jul 04 13:15 LAG1 18 0 13 8 +- 44 4 +- 23 6 7810 3 Jul 04 16:49 LAG1 16 0 11 -2 +- 53 5 +- 33 2 7810 3 Jul 04 20:15 LAG1 9 0 9 1 +- 61 6 +- 42 2 7810 4 Jul 04 03:07 LAG2 14 0 9 -7 +- 49 3 +- 38 4 7810 4 Jul 04 03:38 LAG1 6 0 37 -50 +- 125 34 +- 239 0 7810 4 Jul 04 07:07 LAG2 15 0 9 1 +- 52 -7 +- 42 1 7810 4 Jul 04 11:18 LAG2 12 0 18 -11 +- 53 -11 +- 53 5 7810 4 Jul 04 11:58 LAG1 17 0 16 -14 +- 44 2 +- 39 8 7810 4 Jul 04 15:27 LAG1 22 0 11 3 +- 39 -4 +- 19 6 7810 4 Jul 04 18:59 LAG1 19 0 11 10 +- 42 -3 +- 27 3 7810 4 Jul 04 22:22 LAG1 10 0 14 0 +- 67 -6 +- 29 3 7810 5 Jul 04 01:08 LAG2 22 0 13 -13 +- 39 2 +- 28 2 7810 5 Jul 04 01:53 LAG1 22 0 12 9 +- 39 -5 +- 26 4 7810 7 Jul 04 15:09 LAG1 10 0 10 9 +- 69 1 +- 45 1 7810 7 Jul 04 18:22 LAG1 17 0 7 -7 +- 44 0 +- 30 2 7810 7 Jul 04 21:49 LAG1 7 0 11 5 +- 75 -4 +- 32 6 7810 8 Jul 04 01:29 LAG1 4 0 12 9 +- 243 -3 +- 246 4 7810 8 Jul 04 07:40 LAG2 11 0 1 0 +- 59 1 +- 65 1 7810 9 Jul 04 12:39 LAG1 6 0 6 19 +- 471 -13 +- 250 1 7810 9 Jul 04 15:39 LAG1 16 0 5 4 +- 59 0 +- 32 3 7810 9 Jul 04 19:13 LAG1 17 0 3 0 +- 44 -1 +- 31 3 7810 10 Jul 04 14:23 LAG1 16 0 9 0 +- 46 2 +- 21 6 7810 10 Jul 04 17:57 LAG1 2 0 13 -81 +-4032 -39 +-2353 0 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 6 Jul 04 00:39 LAG1 14 0 9 6 +- 49 1 +- 42 6 7811 6 Jul 04 23:13 LAG1 16 0 13 11 +- 45 0 +- 31 7 7811 7 Jul 04 23:13 LAG1 16 16 0 0 +- 0 0 +- 0 0 7811 9 Jul 04 22:41 LAG1 15 0 27 25 +- 47 -5 +- 33 9 7811 9 Jul 04 23:53 LAG2 14 0 10 4 +- 49 6 +- 48 6 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 3 Jul 04 00:43 LAG2 5 0 23 51 +- 549 16 +- 320 3 7824 5 Jul 04 01:55 LAG1 2 0 76 269 +-3033 97 +-1525 0 7824 7 Jul 04 01:37 LAG2 6 0 38 56 +- 238 -13 +- 165 5 7824 9 Jul 04 03:43 LAG1 3 0 46 46 +- 124 2 +- 385 0 7824 9 Jul 04 22:45 LAG1 13 0 26 29 +- 40 -6 +- 26 6 7824 10 Jul 04 21:33 LAG1 5 0 52 50 +- 66 5 +- 108 4 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 3 Jul 04 00:55 LAG1 7 0 6 5 +- 28 -3 +- 61 1 7832 3 Jul 04 01:09 LAG2 7 0 4 3 +- 29 10 +- 59 0 7832 3 Jul 04 05:28 LAG2 13 0 12 -10 +- 18 1 +- 24 4 7832 3 Jul 04 19:57 LAG1 11 0 8 -6 +- 23 2 +- 22 3 7832 3 Jul 04 23:01 LAG2 11 0 20 -16 +- 37 -23 +- 27 3 7832 3 Jul 04 23:23 LAG1 11 0 12 -13 +- 28 -3 +- 20 4 7832 4 Jul 04 03:41 LAG2 10 0 16 -6 +- 53 22 +- 55 2 7832 4 Jul 04 07:43 LAG2 5 0 5 -15 +- 128 -8 +- 106 1 7832 4 Jul 04 18:51 LAG1 4 0 5 -4 +- 34 -2 +- 139 1 7832 4 Jul 04 21:15 LAG2 11 0 16 -5 +- 20 -20 +- 25 4 7832 4 Jul 04 22:05 LAG1 12 0 16 1 +- 19 -8 +- 12 7 7832 5 Jul 04 01:11 LAG2 7 0 10 -7 +- 134 -11 +- 92 3 7832 5 Jul 04 05:39 LAG2 13 0 7 9 +- 26 4 +- 27 2 7832 5 Jul 04 14:21 LAG1 7 0 17 12 +- 30 11 +- 50 3 7832 5 Jul 04 19:29 LAG2 9 0 17 17 +- 24 -8 +- 51 4 7832 5 Jul 04 20:45 LAG1 10 0 3 2 +- 21 -1 +- 14 1 7832 5 Jul 04 23:15 LAG2 11 0 34 -14 +- 19 -23 +- 14 1 7832 6 Jul 04 00:13 LAG1 9 0 4 0 +- 41 -3 +- 39 0 7832 6 Jul 04 03:45 LAG2 10 0 4 -3 +- 21 3 +- 46 1 7832 6 Jul 04 07:53 LAG2 4 0 6 -12 +- 334 -11 +- 199 1 7832 6 Jul 04 19:22 LAG1 8 0 4 0 +- 51 -3 +- 41 2 7832 6 Jul 04 21:21 LAG2 11 0 8 -14 +- 37 -8 +- 28 2 7832 6 Jul 04 23:05 LAG1 11 0 3 4 +- 36 -2 +- 23 2 7832 7 Jul 04 01:37 LAG2 10 0 9 -9 +- 22 0 +- 41 2 7832 7 Jul 04 05:59 LAG2 11 0 8 10 +- 24 8 +- 31 2 7832 7 Jul 04 15:06 LAG1 4 0 6 -6 +- 37 7 +- 126 2 7832 7 Jul 04 18:17 LAG1 6 0 13 13 +- 27 -8 +- 69 2 7832 10 Jul 04 04:11 LAG2 15 0 15 13 +- 17 -5 +- 23 3 7832 10 Jul 04 14:33 LAG1 7 0 9 0 +- 29 14 +- 50 3 7832 10 Jul 04 20:55 LAG1 13 0 4 0 +- 18 0 +- 10 4 7832 10 Jul 04 21:43 LAG2 11 0 20 -7 +- 48 7 +- 28 2 Station 7835 (Grasse) (position fixed, acc. 30 mm) 7835 5 Jul 04 21:25 LAG1 5 0 10 12 +- 130 0 +- 63 1 7835 5 Jul 04 23:23 LAG2 10 0 7 2 +- 32 -9 +- 51 1 7835 6 Jul 04 23:13 LAG1 18 0 8 -5 +- 25 -2 +- 12 2 7835 7 Jul 04 01:11 LAG2 27 0 4 -2 +- 18 0 +- 11 4 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 4 Jul 04 14:55 LAG1 9 0 34 -34 +- 51 3 +- 65 4 7837 4 Jul 04 17:39 LAG2 16 0 49 14 +- 38 -40 +- 32 6 7837 4 Jul 04 18:25 LAG1 6 0 46 34 +- 76 -29 +- 130 4 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 7 Jul 04 02:19 LAG2 10 0 26 22 +- 81 3 +- 55 19 7838 7 Jul 04 04:20 LAG1 9 1 9 -4 +- 124 6 +- 65 4 7838 9 Jul 04 02:31 LAG2 19 0 26 23 +- 22 -3 +- 13 7 7838 9 Jul 04 04:39 LAG1 20 0 19 10 +- 21 -7 +- 11 9 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 3 Jul 04 23:09 LAG2 9 0 18 15 +- 27 -4 +- 29 0 7839 3 Jul 04 23:33 LAG1 3 0 14 -134 +-1514 -41 +- 525 0 7839 4 Jul 04 19:07 LAG1 9 0 11 14 +- 21 -2 +- 12 1 7839 4 Jul 04 22:13 LAG1 17 0 15 0 +- 11 -7 +- 5 3 7839 5 Jul 04 01:05 LAG2 24 0 10 -8 +- 8 3 +- 5 3 7839 5 Jul 04 01:57 LAG1 17 0 11 11 +- 10 -2 +- 7 2 7839 5 Jul 04 05:11 LAG2 18 0 10 3 +- 10 6 +- 6 0 7839 5 Jul 04 09:15 LAG2 25 0 12 12 +- 8 0 +- 5 0 7839 5 Jul 04 10:47 LAG1 4 0 5 -6 +- 38 5 +- 103 0 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 4 Jul 04 22:23 LAG1 12 0 15 0 +- 19 -6 +- 8 2 7840 5 Jul 04 01:09 LAG2 21 0 15 -12 +- 14 8 +- 11 1 7840 5 Jul 04 01:59 LAG1 17 0 10 9 +- 16 0 +- 12 2 7840 5 Jul 04 05:47 LAG2 4 0 21 29 +- 682 -3 +- 317 2 7840 5 Jul 04 09:17 LAG2 10 0 9 8 +- 20 1 +- 14 3 7840 5 Jul 04 17:43 LAG1 16 0 10 10 +- 16 -1 +- 10 2 7840 5 Jul 04 21:37 LAG1 4 0 1 -19 +- 521 8 +- 218 1 7840 5 Jul 04 23:33 LAG2 7 0 2 0 +- 25 2 +- 69 2 7840 6 Jul 04 00:35 LAG1 13 0 9 -5 +- 23 2 +- 16 2 7840 6 Jul 04 03:15 LAG2 20 0 8 -4 +- 14 4 +- 10 1 7840 6 Jul 04 07:21 LAG2 7 0 9 8 +- 25 0 +- 22 3 7840 6 Jul 04 11:25 LAG2 3 0 6 -45 +- 455 -34 +- 314 1 7840 6 Jul 04 12:49 LAG1 9 0 5 3 +- 24 3 +- 25 3 7840 6 Jul 04 16:21 LAG1 14 0 4 0 +- 17 0 +- 9 4 7840 6 Jul 04 19:49 LAG1 16 0 10 10 +- 16 0 +- 11 3 7840 6 Jul 04 23:11 LAG1 11 0 7 -6 +- 19 -1 +- 8 2 7840 7 Jul 04 01:19 LAG2 17 0 16 -10 +- 16 10 +- 11 2 7840 7 Jul 04 02:51 LAG1 16 0 9 7 +- 16 4 +- 16 3 7840 10 Jul 04 07:45 LAG2 15 0 12 9 +- 17 -4 +- 12 2 7840 10 Jul 04 11:53 LAG2 13 0 17 -12 +- 18 -13 +- 24 7 7840 10 Jul 04 17:55 LAG1 16 0 9 7 +- 16 1 +- 10 4 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 5 Jul 04 05:21 LAG2 7 0 8 0 +- 35 7 +- 35 3 7841 6 Jul 04 07:23 LAG2 9 0 22 30 +- 29 11 +- 21 13 7841 6 Jul 04 16:23 LAG1 5 1 7 -7 +- 62 0 +- 66 2 7841 6 Jul 04 19:57 LAG1 13 0 3 -5 +- 20 3 +- 11 1 7841 6 Jul 04 23:09 LAG1 8 1 10 -9 +- 32 -9 +- 18 2 7841 7 Jul 04 01:22 LAG2 13 0 6 -1 +- 20 0 +- 14 6 7841 7 Jul 04 05:37 LAG2 7 0 24 27 +- 26 43 +- 33 13 7841 7 Jul 04 14:54 LAG1 7 0 9 -1 +- 56 3 +- 30 5 7841 9 Jul 04 15:41 LAG1 5 0 2 -15 +- 152 -6 +- 68 0 7841 9 Jul 04 19:17 LAG1 12 0 11 6 +- 12 0 +- 11 8 7841 10 Jul 04 21:21 LAG1 14 0 5 4 +- 11 -2 +- 8 2 Station 7845 (Grasse) (position fixed, acc. 20 mm) 7845 5 Jul 04 09:13 LAG2 16 0 18 17 +- 26 0 +- 17 3 7845 5 Jul 04 21:11 LAG1 18 0 16 15 +- 20 0 +- 11 3 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 3 Jul 04 00:59 LAG2 19 0 9 1 +- 13 9 +- 14 4 7941 3 Jul 04 04:53 LAG2 18 0 9 -13 +- 14 -4 +- 10 1 7941 3 Jul 04 13:27 LAG1 5 0 9 11 +- 84 1 +- 53 2 7941 3 Jul 04 16:51 LAG1 9 0 9 3 +- 30 8 +- 21 2 7941 3 Jul 04 20:45 LAG1 2 0 7 -15 +-1551 10 +- 699 0 7941 3 Jul 04 23:31 LAG2 7 0 3 14 +- 85 -7 +- 54 1 7941 4 Jul 04 00:03 LAG1 10 0 3 -13 +- 61 6 +- 26 1 7941 4 Jul 04 03:29 LAG2 4 0 2 -9 +- 120 8 +- 96 0 7941 4 Jul 04 07:06 LAG2 8 1 11 4 +- 48 -3 +- 31 3 7941 4 Jul 04 11:15 LAG2 4 0 16 16 +- 365 0 +- 195 4 7941 4 Jul 04 11:54 LAG1 21 0 7 0 +- 9 2 +- 5 6 7941 4 Jul 04 15:32 LAG1 7 0 16 16 +- 48 0 +- 29 1 7941 4 Jul 04 19:05 LAG1 6 0 13 12 +- 17 -1 +- 36 1 7941 5 Jul 04 01:21 LAG2 17 0 5 0 +- 15 2 +- 9 2 7941 5 Jul 04 02:01 LAG1 7 0 12 12 +- 16 -4 +- 32 1 7941 5 Jul 04 09:21 LAG2 6 0 19 -1 +- 88 -10 +- 48 5 7941 5 Jul 04 10:47 LAG1 10 0 21 18 +- 16 6 +- 23 4 7941 5 Jul 04 14:05 LAG1 10 0 5 14 +- 48 7 +- 22 2 7941 5 Jul 04 21:27 LAG1 4 0 3 35 +- 221 -17 +- 102 1 7941 5 Jul 04 23:23 LAG2 18 0 13 -6 +- 11 -6 +- 9 1 7941 6 Jul 04 00:25 LAG1 18 0 9 -9 +- 10 0 +- 5 2 7941 6 Jul 04 07:21 LAG2 9 1 4 8 +- 39 2 +- 26 0 7941 6 Jul 04 11:31 LAG2 5 0 5 24 +- 143 13 +- 97 1 7941 6 Jul 04 12:43 LAG1 11 0 13 6 +- 36 9 +- 18 2 7941 6 Jul 04 16:27 LAG1 4 0 3 1 +- 67 4 +- 74 2 7941 6 Jul 04 19:57 LAG1 9 0 2 2 +- 30 0 +- 22 0 7941 6 Jul 04 21:47 LAG2 2 0 15 43 +- 327 -161 +- 910 0 7941 6 Jul 04 22:59 LAG1 23 0 7 -5 +- 8 -3 +- 4 1 7941 7 Jul 04 01:17 LAG2 24 0 12 -7 +- 8 5 +- 5 5 7941 7 Jul 04 02:51 LAG1 10 0 11 10 +- 13 4 +- 25 1 7941 7 Jul 04 05:43 LAG2 6 0 7 1 +- 22 18 +- 46 0 7941 7 Jul 04 09:31 LAG2 10 1 5 18 +- 59 12 +- 33 1 7941 7 Jul 04 14:59 LAG1 7 0 9 -20 +- 53 -7 +- 30 4 7941 7 Jul 04 18:23 LAG1 16 0 11 10 +- 10 -3 +- 8 2 7941 7 Jul 04 23:25 LAG2 21 0 6 4 +- 9 0 +- 6 4 7941 8 Jul 04 01:17 LAG1 13 0 8 5 +- 11 -1 +- 7 6 7941 8 Jul 04 03:25 LAG2 9 0 4 0 +- 22 1 +- 14 4 7941 8 Jul 04 07:37 LAG2 7 0 10 14 +- 41 4 +- 26 6 7941 8 Jul 04 13:31 LAG1 10 0 16 32 +- 46 8 +- 21 2 7941 8 Jul 04 17:03 LAG1 9 0 5 -5 +- 26 0 +- 18 2 7941 8 Jul 04 21:59 LAG2 7 0 8 8 +- 39 0 +- 47 1 7941 9 Jul 04 01:31 LAG2 21 0 3 2 +- 9 -1 +- 6 1 7941 9 Jul 04 05:51 LAG2 9 0 5 5 +- 23 0 +- 25 0 7941 9 Jul 04 15:47 LAG1 7 0 8 -19 +- 46 -9 +- 30 3 7941 9 Jul 04 19:19 LAG1 8 0 9 6 +- 21 -5 +- 16 8 7941 9 Jul 04 22:25 LAG1 23 0 11 -3 +- 8 -5 +- 4 2 7941 9 Jul 04 23:37 LAG2 19 0 11 -1 +- 9 6 +- 6 4 7941 10 Jul 04 02:25 LAG1 2 0 11 24 +- 109 -39 +- 300 0 7941 10 Jul 04 10:50 LAG1 9 0 7 1 +- 14 4 +- 10 5 7941 10 Jul 04 14:21 LAG1 9 0 6 2 +- 49 4 +- 23 2 7941 10 Jul 04 17:49 LAG1 6 0 19 -8 +- 84 6 +- 51 0 7941 10 Jul 04 21:47 LAG1 2 0 13 -35 +-2369 18 +- 914 0 7941 10 Jul 04 21:59 LAG2 6 0 6 1 +- 17 8 +- 21 1 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 3 Jul 04 04:55 LAG2 10 0 7 -1 +- 50 2 +- 29 3 8834 3 Jul 04 08:57 LAG2 12 0 13 40 +- 49 16 +- 25 4 8834 3 Jul 04 23:47 LAG1 3 0 40 -38 +- 286 1 +- 149 1 8834 4 Jul 04 03:29 LAG2 4 0 15 -14 +- 111 -1 +- 95 2 8834 4 Jul 04 07:07 LAG2 10 0 11 -14 +- 18 -6 +- 13 5 8834 4 Jul 04 15:37 LAG1 13 0 11 -5 +- 12 -6 +- 9 3 8834 5 Jul 04 01:26 LAG2 15 0 17 -24 +- 17 8 +- 12 4 8834 5 Jul 04 01:59 LAG1 10 0 9 5 +- 13 -3 +- 9 4 8834 5 Jul 04 17:37 LAG1 9 0 6 -3 +- 28 1 +- 18 2 8834 6 Jul 04 11:52 LAG2 4 0 25 0 +- 142 -20 +- 118 0 8834 6 Jul 04 13:03 LAG1 7 0 16 1 +- 37 11 +- 29 1 8834 6 Jul 04 16:34 LAG1 4 0 15 -8 +- 42 -8 +- 55 1 8834 6 Jul 04 23:27 LAG1 2 0 27 -28 +- 70 6 +- 230 0 8834 7 Jul 04 05:43 LAG2 4 0 20 -17 +- 30 9 +- 83 0 8834 7 Jul 04 09:29 LAG2 11 0 12 11 +- 14 10 +- 12 4 8834 7 Jul 04 11:23 LAG1 4 0 11 -39 +- 130 -24 +- 109 1 8834 7 Jul 04 21:51 LAG1 10 0 7 -7 +- 14 0 +- 7 2 8834 7 Jul 04 23:49 LAG2 7 0 13 -16 +- 21 5 +- 15 5 8834 8 Jul 04 03:40 LAG2 3 0 12 -13 +- 27 5 +- 16 1 8834 8 Jul 04 07:49 LAG2 9 0 4 0 +- 14 2 +- 18 3 8834 8 Jul 04 13:21 LAG1 2 0 6 226 +-9999 79 +-3807 0 8834 9 Jul 04 12:24 LAG1 2 0 6 7 +- 37 3 +- 156 0 8834 9 Jul 04 15:39 LAG1 6 0 6 -26 +- 113 -10 +- 47 4 8834 9 Jul 04 19:17 LAG1 7 0 3 -2 +- 17 0 +- 20 2 8834 9 Jul 04 22:59 LAG1 7 0 18 -19 +- 67 0 +- 33 1 8834 9 Jul 04 23:49 LAG2 10 0 11 -12 +- 15 5 +- 10 2 8834 10 Jul 04 02:23 LAG1 7 0 6 1 +- 16 -10 +- 36 3 8834 10 Jul 04 04:05 LAG2 9 0 15 -11 +- 26 -3 +- 24 1 8834 10 Jul 04 18:07 LAG1 10 0 9 -17 +- 27 9 +- 17 3 8834 10 Jul 04 21:21 LAG1 7 0 6 -3 +- 18 2 +- 16 2 8834 10 Jul 04 22:14 LAG2 1 0 13 0 +- 0 0 +- 0 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 - 040704 0/ 11/ 0 0/ 1/ 0 12 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 040710 0/ 87/ 0 0/ 26/ 0 113 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 040711 0/ 30/ 0 0/ 10/ 0 40 1884 RIGLAS 040310 - 040603 0/ 40/ 0 0/ 3/ 0 43 1893 CRMLAS 040331 - 040710 0/ 23/ 0 0/ 8/ 0 31 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 - 040711 36/ 67/ 12 52/ 56/ 5 228 7090 ML0514 040101 - 040629 162/157/ 40 115/236/ 24 734 7105 ML0725 040104 - 040709 20/ 54/ 7 4/ 39/ 5 129 7110 ML0414 040102 - 040710 72/150/ 14 85/ 78/ 11 410 7124 ML0819 040315 - 040708 0/ 5/ 0 0/ 10/ 0 15 7210 HOLLAS 040105 - 040607 33/ 49/ 3 50/ 52/ 6 193 7231 WUHA01 040408 - 040701 0/ 0/ 0 0/ 2/ 0 2 7237 CHALAS 040101 - 040703 0/239/ 6 0/116/ 2 363 7249 BEJLAS 040101 - 040701 0/171/ 1 0/119/ 0 291 7308 CRLLAS 040106 - 040311 5/ 47/ 0 0/ 38/ 2 92 7355 TROS02 040509 - 040712 0/ 54/ 0 0/ 10/ 0 64 7405 TIGO 040103 - 040215 0/ 9/ 2 0/ 0/ 0 11 7501 ML0616 040106 - 040706 53/ 50/ 18 42/106/ 10 279 7810 ZIMLAT 040507 - 040711 66/ 57/ 15 79/ 6/ 7 230 7811 POLLAS 040105 - 040710 0/ 82/ 0 0/ 22/ 0 104 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 040710 0/ 85/ 0 0/ 48/ 1 134 7832 SALRO 040102 - 040712 81/195/ 23 134/152/ 23 608 7835 GRASSE 040301 - 040707 1/ 52/ 3 0/ 24/ 1 81 7836 GFZLAS 040105 - 040701 0/ 38/ 0 0/ 21/ 1 60 7837 CHILAS 040102 - 040711 0/ 31/ 0 0/ 29/ 0 60 7838 SHOLAS 040105 - 040709 20/153/ 2 42/105/ 7 329 7839 AUSLAS 040107 - 040712 39/114/ 15 47/ 60/ 4 279 7840 RGOLAS 040102 - 040710 81/169/ 30 92/ 75/ 14 461 7841 GFZLA3 040112 - 040710 14/ 55/ 10 12/ 22/ 5 118 7845 GRASLL 040318 - 040705 2/ 14/ 0 9/ 2/ 0 27 7941 MLROnn 040111 - 040711 80/121/ 20 83/ 85/ 7 396 8834 WLRS01 040108 - 040711 107/130/ 33 122/ 68/ 11 471 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 040704.0 1.4 +/- 0.2 513.6 +/- 0.2 -32518.90 +/- 0.02 040705.0 3.3 +/- 0.1 513.6 +/- 0.2 -32518.48 +/- 0.03 040706.0 5.7 +/- 0.1 514.5 +/- 0.1 -32518.19 +/- 0.04 040707.0 7.5 +/- 0.1 514.4 +/- 0.1 -32518.13 +/- 0.05 040708.0 9.4 +/- 0.1 514.9 +/- 0.1 -32518.03 +/- 0.06 040709.0 12.1 +/- 0.1 515.1 +/- 0.1 -32517.96 +/- 0.06 040710.0 15.3 +/- 0.1 515.8 +/- 0.1 -32517.77 +/- 0.07 -------------------------------------------------------------- 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 ******************************************************************************** |