| Date: | 2004-11-24 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4576: Delft QL Report November 24, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-11-24 13:15:00 UTC Message No. 4576 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report November 24, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS November 24, 2004 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 Wed, Nov 24, 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 Wed, Nov 24, 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) 041122 - 041123 1 2 6810 Zimmerwald 846, Switzerland 041122 - 041124 4 4 7090 Yarragadee, Australia 041122 - 041123 3 2 7810 Zimmerwald 423, Switzerland 041122 - 041124 4 4 7824 San Fernando, Spain 041122 - 041123 2 - 7825 Mount Stromlo, Australia 041122 - 041123 9 6 7832 Riyad, Saudi Arabia 041122 - 041122 3 4 7835 Grasse, France 041122 - 041122 1 - 7837 Shanghai Observatory, China 041122 - 041122 - 1 7838 Simosato Observatory, Japan 041122 - 041122 - 1 7839 Graz, Austria 041123 - 041123 1 - 7840 Herstmonceux, United Kingdom 041122 - 041122 2 1 7941 Matera, Italy (MLRO 532) 041122 - 041124 4 3 8834 Wettzell, Germany 041123 - 041124 1 2 ------ ------ --- --- TOTAL 041122 - 041124 35 30 ------------------------------------------------------------------------------ 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 Tue, Nov 16, 2004 to Wed, Nov 24, 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 21 20 Number of Passes 154/153 130/129 Number of Normal Points 1675/1666 1515/1505 Weighted RMS of Fit (mm) 11 11 ----------------------------------------------------------------------- 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 22 Nov 04 13:22 LAG1 4 0 36 41 +- 427 -16 +- 765 10 1864 22 Nov 04 15:29 LAG2 9 0 151 -106 +- 234 -37 +- 193 120 1864 23 Nov 04 13:37 LAG2 7 0 58 -46 +- 239 17 +- 216 18 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 16 Nov 04 14:36 LAG2 11 0 45 -41 +- 133 0 +- 84 18 Station 6405 (Concepcion) (position solved, acc. 20 mm) 6405 17 Nov 04 23:18 LAG1 18 0 11 10 +- 15 0 +- 12 3 6405 18 Nov 04 03:16 LAG1 9 0 13 -10 +- 97 10 +- 43 3 6405 19 Nov 04 01:35 LAG1 11 0 14 -14 +- 21 3 +- 9 6 6405 19 Nov 04 03:01 LAG2 12 0 21 -17 +- 19 6 +- 10 4 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 16 Nov 04 07:41 LAG1 20 0 18 -16 +- 41 -3 +- 24 4 6810 16 Nov 04 10:37 LAG2 11 0 26 -36 +- 164 6 +- 98 1 6810 16 Nov 04 11:16 LAG1 10 0 22 -25 +- 67 4 +- 38 2 6810 16 Nov 04 14:27 LAG2 7 0 22 -23 +- 72 6 +- 55 1 6810 16 Nov 04 14:49 LAG1 8 0 21 -23 +- 93 2 +- 56 2 6810 16 Nov 04 17:59 LAG1 9 0 10 -10 +- 65 -2 +- 26 1 6810 16 Nov 04 18:59 LAG2 5 0 20 5 +- 731 -11 +- 329 4 6810 16 Nov 04 21:59 LAG1 7 0 23 -17 +- 105 -14 +- 211 3 6810 16 Nov 04 22:32 LAG2 5 0 19 -19 +- 84 10 +- 156 2 6810 18 Nov 04 14:25 LAG2 20 0 23 -22 +- 41 1 +- 26 5 6810 18 Nov 04 15:19 LAG1 19 0 21 -19 +- 41 4 +- 23 5 6810 19 Nov 04 12:51 LAG2 6 0 17 -22 +- 117 5 +- 70 5 6810 19 Nov 04 16:35 LAG2 23 0 15 -11 +- 39 -4 +- 25 3 6810 19 Nov 04 17:27 LAG1 17 0 12 -9 +- 48 2 +- 28 2 6810 19 Nov 04 21:31 LAG1 5 0 4 6 +- 365 -2 +- 360 2 6810 21 Nov 04 11:23 LAG1 21 0 17 -13 +- 39 6 +- 22 3 6810 21 Nov 04 12:49 LAG2 21 0 19 -14 +- 40 -5 +- 24 2 6810 21 Nov 04 14:49 LAG1 18 0 17 -16 +- 43 3 +- 28 2 6810 22 Nov 04 10:09 LAG1 2 0 20 77 +-6721 46 +-3167 0 6810 22 Nov 04 10:47 LAG2 2 0 14 254 +-9999 95 +-4685 0 6810 22 Nov 04 13:33 LAG1 15 0 4 -1 +- 47 0 +- 32 3 6810 22 Nov 04 14:53 LAG2 17 0 19 -14 +- 45 -9 +- 29 4 6810 22 Nov 04 17:27 LAG1 4 0 28 -9 +-1243 -7 +- 513 0 6810 22 Nov 04 19:25 LAG2 13 0 21 -22 +- 120 0 +- 71 3 6810 22 Nov 04 20:41 LAG1 6 0 8 -10 +- 114 -14 +- 199 5 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 17 Nov 04 17:34 LAG1 9 0 24 -23 +- 22 4 +- 19 5 7080 17 Nov 04 19:43 LAG2 13 0 10 0 +- 20 -6 +- 12 1 7080 18 Nov 04 00:14 LAG2 9 0 3 0 +- 39 2 +- 46 2 7080 18 Nov 04 16:14 LAG1 2 0 2 0 +- 761 -1 +- 413 0 7080 18 Nov 04 18:03 LAG2 8 0 15 24 +- 51 -8 +- 42 1 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 17 Nov 04 11:57 LAG1 22 0 11 -5 +- 8 -5 +- 4 5 7090 17 Nov 04 13:59 LAG2 11 0 4 1 +- 14 1 +- 10 3 7090 17 Nov 04 15:29 LAG1 12 0 3 -3 +- 21 -1 +- 14 2 7090 17 Nov 04 22:07 LAG1 4 0 20 -56 +- 308 -15 +- 128 3 7090 17 Nov 04 22:17 LAG2 9 0 16 -4 +- 19 11 +- 17 3 7090 18 Nov 04 11:01 LAG1 5 0 13 -3 +- 52 -9 +- 61 5 7090 18 Nov 04 14:11 LAG1 17 0 7 7 +- 10 0 +- 5 0 7090 18 Nov 04 15:47 LAG2 31 0 3 -2 +- 7 0 +- 4 1 7090 18 Nov 04 17:45 LAG1 3 0 2 -2 +- 89 0 +- 214 0 7090 18 Nov 04 20:09 LAG2 12 0 7 2 +- 12 5 +- 9 1 7090 18 Nov 04 20:59 LAG1 11 0 4 -3 +- 13 1 +- 13 2 7090 19 Nov 04 12:45 LAG1 13 0 12 -1 +- 11 -5 +- 6 4 7090 19 Nov 04 14:05 LAG2 18 0 10 -7 +- 10 5 +- 6 1 7090 19 Nov 04 16:25 LAG1 12 0 5 5 +- 12 0 +- 13 1 7090 19 Nov 04 18:07 LAG2 21 0 7 -2 +- 9 -5 +- 7 1 7090 19 Nov 04 19:53 LAG1 4 0 1 0 +- 74 0 +- 86 1 7090 19 Nov 04 22:51 LAG2 7 0 7 -11 +- 36 6 +- 33 3 7090 19 Nov 04 23:19 LAG1 8 0 14 -22 +- 57 16 +- 27 2 7090 20 Nov 04 11:45 LAG1 14 0 12 -13 +- 19 0 +- 10 2 7090 20 Nov 04 12:21 LAG2 2 0 18 -8 +- 387 12 +- 498 0 7090 20 Nov 04 15:15 LAG1 10 0 6 10 +- 21 -4 +- 14 0 7090 20 Nov 04 16:03 LAG2 30 0 3 1 +- 7 1 +- 4 1 7090 21 Nov 04 14:17 LAG1 2 0 8 -11 +-2109 1 +- 777 0 7090 21 Nov 04 14:21 LAG2 13 0 6 4 +- 11 2 +- 9 1 7090 21 Nov 04 17:17 LAG1 7 0 5 8 +- 26 -6 +- 29 1 7090 21 Nov 04 23:53 LAG1 5 0 15 -1 +- 38 16 +- 42 0 7090 22 Nov 04 12:13 LAG1 7 0 15 4 +- 111 -4 +- 47 5 7090 22 Nov 04 12:39 LAG2 4 0 4 4 +- 32 -1 +- 114 0 7090 22 Nov 04 20:41 LAG2 12 0 6 11 +- 29 11 +- 22 0 7090 22 Nov 04 22:39 LAG1 8 0 3 0 +- 27 0 +- 20 3 7090 23 Nov 04 10:57 LAG1 9 0 8 -12 +- 29 -4 +- 24 1 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 16 Nov 04 03:19 LAG1 6 0 7 10 +- 110 -1 +- 51 1 7110 16 Nov 04 04:07 LAG2 8 0 11 -22 +- 36 12 +- 30 4 7110 16 Nov 04 15:37 LAG1 9 0 17 16 +- 21 0 +- 15 3 7110 16 Nov 04 19:17 LAG1 4 0 21 -22 +- 139 0 +- 87 3 7110 16 Nov 04 21:43 LAG2 8 0 11 6 +- 14 0 +- 26 9 7110 17 Nov 04 05:27 LAG1 4 0 9 -1 +- 115 10 +- 111 1 7110 18 Nov 04 03:35 LAG1 5 0 12 22 +- 252 13 +- 100 2 7110 18 Nov 04 04:03 LAG2 11 0 19 -19 +- 13 8 +- 7 3 7110 18 Nov 04 16:23 LAG1 13 0 6 6 +- 16 0 +- 10 2 7110 18 Nov 04 17:47 LAG2 9 0 8 11 +- 19 -6 +- 13 2 7110 18 Nov 04 22:03 LAG2 4 0 15 -15 +- 24 4 +- 86 4 7110 19 Nov 04 02:02 LAG2 6 0 8 -40 +- 104 -27 +- 64 3 7110 19 Nov 04 02:23 LAG1 14 0 9 -4 +- 11 4 +- 8 5 7110 19 Nov 04 06:21 LAG2 7 0 8 -5 +- 19 -5 +- 22 2 7110 19 Nov 04 14:59 LAG1 5 0 4 4 +- 26 3 +- 49 2 7110 19 Nov 04 18:25 LAG1 5 0 20 -19 +- 18 -1 +- 13 5 7110 19 Nov 04 20:03 LAG2 11 0 18 -10 +- 17 -8 +- 15 3 7110 20 Nov 04 01:16 LAG1 2 0 11 -1 +- 68 -25 +- 176 0 7110 20 Nov 04 04:19 LAG2 15 0 18 -18 +- 10 4 +- 10 1 7110 20 Nov 04 13:35 LAG1 6 0 9 4 +- 19 22 +- 54 5 Station 7231 (Wuhan) (position fixed, acc. 50 mm) 7231 17 Nov 04 13:31 LAG2 10 0 36 -34 +- 78 -2 +- 72 3 7231 18 Nov 04 12:01 LAG2 2 0 31 -2194 +-7755 976 +-3443 0 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 17 Nov 04 09:17 LAG2 9 0 22 -3 +- 58 -9 +- 39 15 7237 17 Nov 04 09:22 LAG1 5 0 12 -11 +- 73 -1 +- 74 3 7237 17 Nov 04 13:01 LAG1 4 0 24 9 +- 127 27 +- 227 7 7237 17 Nov 04 13:21 LAG2 8 0 30 30 +- 59 0 +- 73 5 7237 18 Nov 04 11:30 LAG2 2 0 25 88 +- 377 161 +- 740 0 7237 19 Nov 04 09:43 LAG2 3 0 12 12 +- 416 -5 +- 663 7 7237 21 Nov 04 09:55 LAG2 10 0 5 0 +- 97 0 +- 61 5 7237 21 Nov 04 10:53 LAG1 12 0 12 -5 +- 45 10 +- 39 4 Station 7405 (Concepcion) (position solved, acc. 20 mm) 7405 17 Nov 04 01:01 LAG1 5 0 17 -1 +- 50 11 +- 31 2 7405 18 Nov 04 03:07 LAG1 3 0 12 12 +- 40 0 +- 137 1 7405 19 Nov 04 01:35 LAG1 2 0 1 49 +-2271 25 +-1153 0 7405 19 Nov 04 12:03 LAG1 2 0 3 -15 +- 228 20 +- 307 0 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 16 Nov 04 04:55 LAG1 8 0 24 15 +- 15 19 +- 17 2 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 16 Nov 04 07:41 LAG1 21 0 18 -16 +- 40 -3 +- 23 3 7810 16 Nov 04 10:37 LAG2 10 0 19 -24 +- 171 3 +- 107 3 7810 16 Nov 04 11:17 LAG1 10 0 15 -18 +- 67 4 +- 38 2 7810 16 Nov 04 14:27 LAG2 7 0 16 -16 +- 72 3 +- 55 4 7810 16 Nov 04 14:49 LAG1 9 0 14 -21 +- 93 6 +- 53 1 7810 16 Nov 04 17:59 LAG1 8 0 5 -5 +- 74 0 +- 29 2 7810 16 Nov 04 18:59 LAG2 4 0 9 0 +- 851 -4 +- 395 2 7810 16 Nov 04 21:59 LAG1 6 0 14 -10 +- 108 -10 +- 256 3 7810 16 Nov 04 22:32 LAG2 2 0 13 -13 +- 135 10 +- 162 0 7810 18 Nov 04 14:25 LAG2 19 0 17 -16 +- 41 2 +- 27 5 7810 18 Nov 04 15:19 LAG1 19 0 21 -18 +- 42 5 +- 24 3 7810 19 Nov 04 12:52 LAG2 6 0 7 -10 +- 163 1 +- 85 2 7810 19 Nov 04 16:35 LAG2 23 0 8 -3 +- 38 -4 +- 25 3 7810 19 Nov 04 17:27 LAG1 16 0 7 -1 +- 52 3 +- 31 1 7810 19 Nov 04 21:31 LAG1 6 0 8 8 +- 324 0 +- 295 1 7810 21 Nov 04 11:23 LAG1 20 0 15 -8 +- 41 6 +- 24 3 7810 21 Nov 04 12:49 LAG2 22 0 16 -10 +- 40 -5 +- 24 2 7810 21 Nov 04 14:49 LAG1 17 0 17 -15 +- 44 4 +- 30 2 7810 22 Nov 04 10:09 LAG1 2 0 9 -42 +-6164 -15 +-2905 0 7810 22 Nov 04 10:47 LAG2 2 0 15 -319 +-9999 -132 +-4102 0 7810 22 Nov 04 13:33 LAG1 14 0 3 3 +- 49 0 +- 35 1 7810 22 Nov 04 14:55 LAG2 17 0 15 -8 +- 45 -9 +- 30 3 7810 22 Nov 04 17:27 LAG1 5 0 24 -45 +- 968 8 +- 388 1 7810 22 Nov 04 19:25 LAG2 12 0 16 -10 +- 122 -3 +- 76 2 7810 22 Nov 04 20:41 LAG1 6 0 4 -4 +- 110 -9 +- 190 1 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 16 Nov 04 18:09 LAG1 15 0 22 20 +- 47 -1 +- 35 8 7811 16 Nov 04 18:40 LAG2 7 0 19 15 +- 91 1 +- 91 11 7811 19 Nov 04 16:53 LAG2 15 0 19 17 +- 50 -10 +- 44 9 7811 19 Nov 04 17:32 LAG1 15 0 17 16 +- 47 2 +- 33 7 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 16 Nov 04 19:02 LAG2 3 0 50 218 +-2302 -77 +-1065 2 7824 16 Nov 04 21:38 LAG1 8 0 67 67 +- 85 0 +- 82 4 7824 16 Nov 04 22:35 LAG2 2 0 62 74 +-1267 13 +-1422 0 7824 17 Nov 04 20:13 LAG1 7 0 61 90 +- 163 18 +- 94 7 7824 17 Nov 04 20:37 LAG2 4 0 81 94 +- 433 8 +- 300 0 7824 18 Nov 04 18:35 LAG2 2 0 49 324 +-5491 137 +-2740 0 7824 18 Nov 04 18:56 LAG1 2 0 59 114 +-1035 31 +- 598 0 7824 18 Nov 04 22:31 LAG1 4 0 30 51 +- 348 24 +- 399 3 7824 18 Nov 04 22:49 LAG2 5 0 53 54 +- 85 1 +- 186 2 7824 19 Nov 04 21:03 LAG1 2 0 27 136 +-4654 58 +-2463 0 7824 19 Nov 04 21:23 LAG2 3 0 26 5 +-1876 10 +- 903 0 7824 22 Nov 04 20:30 LAG1 11 0 47 59 +- 54 -11 +- 31 4 7824 23 Nov 04 19:05 LAG1 1 0 63 0 +- 0 0 +- 0 0 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 16 Nov 04 09:36 LAG1 24 0 4 -1 +- 8 1 +- 4 3 7825 16 Nov 04 11:57 LAG2 23 0 8 6 +- 8 1 +- 6 5 7825 16 Nov 04 13:11 LAG1 19 0 5 0 +- 9 2 +- 6 2 7825 16 Nov 04 15:57 LAG2 24 0 13 11 +- 8 -4 +- 6 2 7825 16 Nov 04 16:45 LAG1 9 0 9 10 +- 18 -5 +- 21 3 7825 16 Nov 04 19:49 LAG1 18 0 8 6 +- 10 -1 +- 6 3 7825 16 Nov 04 20:23 LAG2 14 0 3 3 +- 11 0 +- 10 2 7825 16 Nov 04 23:55 LAG1 5 0 6 -16 +- 149 6 +- 94 0 7825 17 Nov 04 10:21 LAG2 8 0 7 -7 +- 15 12 +- 41 1 7825 17 Nov 04 11:49 LAG1 23 0 6 5 +- 8 -1 +- 4 3 7825 17 Nov 04 13:58 LAG2 27 0 9 7 +- 8 -1 +- 4 5 7825 17 Nov 04 15:19 LAG1 14 0 5 1 +- 11 -2 +- 10 4 7825 17 Nov 04 18:11 LAG2 18 0 4 -3 +- 13 0 +- 10 2 7825 17 Nov 04 18:47 LAG1 13 0 6 1 +- 16 -4 +- 11 2 7825 17 Nov 04 22:11 LAG1 11 0 16 -14 +- 12 7 +- 12 3 7825 18 Nov 04 11:01 LAG1 2 0 5 57 +-1381 -23 +- 631 0 7825 19 Nov 04 12:35 LAG1 22 0 3 0 +- 8 1 +- 5 2 7825 19 Nov 04 14:15 LAG2 7 0 10 23 +- 53 8 +- 28 4 7825 19 Nov 04 16:11 LAG1 3 0 7 -9 +- 80 -5 +- 164 0 7825 19 Nov 04 18:29 LAG2 23 0 6 2 +- 8 -2 +- 6 4 7825 19 Nov 04 19:17 LAG1 20 0 10 -8 +- 9 -1 +- 5 5 7825 19 Nov 04 22:37 LAG2 14 0 16 -13 +- 17 2 +- 11 2 7825 19 Nov 04 23:09 LAG1 12 0 10 -20 +- 23 12 +- 16 2 7825 20 Nov 04 14:49 LAG1 7 0 17 17 +- 17 7 +- 19 7 7825 20 Nov 04 16:27 LAG2 26 0 2 0 +- 8 0 +- 5 2 7825 20 Nov 04 18:01 LAG1 19 0 4 -2 +- 9 -1 +- 6 2 7825 20 Nov 04 21:55 LAG1 8 0 15 -57 +- 77 27 +- 34 9 7825 21 Nov 04 09:49 LAG1 24 0 7 0 +- 8 2 +- 4 5 7825 21 Nov 04 10:40 LAG2 7 0 9 3 +- 28 17 +- 44 5 7825 21 Nov 04 14:43 LAG2 19 0 5 0 +- 12 -1 +- 8 3 7825 21 Nov 04 16:47 LAG1 13 0 9 6 +- 11 -3 +- 11 5 7825 21 Nov 04 18:45 LAG2 25 0 4 -2 +- 8 -1 +- 5 2 7825 21 Nov 04 20:03 LAG1 24 0 6 2 +- 8 2 +- 4 4 7825 21 Nov 04 22:53 LAG2 20 0 6 -3 +- 9 -3 +- 6 2 7825 22 Nov 04 08:49 LAG1 11 0 6 6 +- 21 0 +- 17 2 7825 22 Nov 04 12:01 LAG1 15 0 11 0 +- 14 -7 +- 8 1 7825 22 Nov 04 12:31 LAG2 27 0 2 0 +- 8 0 +- 4 2 7825 22 Nov 04 15:33 LAG1 13 0 12 4 +- 11 -11 +- 12 2 7825 22 Nov 04 16:41 LAG2 25 0 4 0 +- 8 -2 +- 6 1 7825 22 Nov 04 18:45 LAG1 21 0 12 0 +- 9 -6 +- 5 5 7825 22 Nov 04 20:59 LAG2 18 0 7 3 +- 9 2 +- 5 4 7825 22 Nov 04 22:15 LAG1 21 0 14 6 +- 9 4 +- 5 11 7825 23 Nov 04 10:39 LAG1 24 0 6 -3 +- 8 0 +- 4 5 7825 23 Nov 04 14:13 LAG1 14 0 7 -6 +- 11 -3 +- 10 2 7825 23 Nov 04 14:41 LAG2 27 0 3 -1 +- 8 1 +- 5 1 7825 23 Nov 04 17:31 LAG1 12 0 9 -9 +- 12 -2 +- 9 1 7825 23 Nov 04 19:07 LAG2 21 0 3 -2 +- 9 0 +- 6 3 7825 23 Nov 04 20:51 LAG1 23 0 9 -2 +- 8 4 +- 4 3 7825 23 Nov 04 23:03 LAG2 21 0 3 0 +- 9 0 +- 6 3 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 16 Nov 04 10:27 LAG2 11 0 14 -14 +- 19 -2 +- 28 3 7832 18 Nov 04 15:07 LAG2 8 0 3 0 +- 26 4 +- 49 2 7832 20 Nov 04 05:53 LAG1 16 0 8 2 +- 17 4 +- 10 3 7832 20 Nov 04 06:56 LAG2 7 0 16 11 +- 39 2 +- 22 7 7832 20 Nov 04 11:03 LAG2 10 0 11 -13 +- 26 11 +- 29 4 7832 20 Nov 04 15:07 LAG2 7 0 2 -7 +- 183 -4 +- 107 2 7832 20 Nov 04 15:43 LAG1 7 0 15 -36 +- 170 -9 +- 71 2 7832 20 Nov 04 19:21 LAG2 7 0 6 -6 +- 57 -13 +- 67 1 7832 21 Nov 04 04:35 LAG1 8 0 31 -2 +- 24 -15 +- 29 29 7832 21 Nov 04 13:17 LAG2 9 0 12 -12 +- 28 -1 +- 52 1 7832 21 Nov 04 14:29 LAG1 10 0 3 -1 +- 33 -2 +- 25 3 7832 21 Nov 04 17:19 LAG2 5 0 21 -12 +- 354 -16 +- 176 1 7832 21 Nov 04 18:07 LAG1 7 0 7 -6 +- 29 1 +- 50 1 7832 22 Nov 04 06:45 LAG1 9 0 4 0 +- 22 4 +- 25 1 7832 22 Nov 04 07:19 LAG2 2 0 12 -13 +- 590 0 +- 607 0 7832 22 Nov 04 11:07 LAG2 8 0 2 1 +- 24 0 +- 24 2 7832 22 Nov 04 13:35 LAG1 4 0 29 52 +- 248 -15 +- 158 1 7832 22 Nov 04 15:59 LAG2 2 0 10178 10153 +-1638 15 +-1073 0*CHK* 7832 22 Nov 04 16:33 LAG1 7 0 10 -50 +- 131 -25 +- 62 1 7832 22 Nov 04 19:31 LAG2 9 0 7 0 +- 26 -6 +- 29 2 Station 7835 (Grasse) (position fixed, acc. 30 mm) 7835 16 Nov 04 17:58 LAG1 15 0 3 -2 +- 32 -2 +- 19 2 7835 16 Nov 04 18:29 LAG2 12 0 3 -2 +- 28 0 +- 16 1 7835 17 Nov 04 16:31 LAG2 10 0 13 10 +- 52 -2 +- 47 2 7835 17 Nov 04 16:51 LAG1 9 0 6 5 +- 32 3 +- 36 1 7835 17 Nov 04 20:29 LAG1 7 0 8 2 +- 44 11 +- 72 2 7835 17 Nov 04 21:07 LAG2 3 0 15 -38 +-1164 12 +- 633 0 7835 18 Nov 04 18:27 LAG2 14 0 11 -4 +- 83 -8 +- 42 2 7835 18 Nov 04 18:59 LAG1 15 0 10 4 +- 27 4 +- 19 3 7835 22 Nov 04 20:29 LAG1 19 0 13 8 +- 22 -7 +- 16 3 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 16 Nov 04 10:41 LAG1 9 0 7 1 +- 83 2 +- 55 5 7837 16 Nov 04 11:11 LAG2 9 0 18 -11 +- 95 5 +- 91 7 7837 17 Nov 04 12:51 LAG1 6 0 39 -2 +- 92 35 +- 99 23 7837 17 Nov 04 13:23 LAG2 9 0 34 16 +- 63 0 +- 85 30 7837 21 Nov 04 13:51 LAG2 5 0 12 0 +- 159 15 +- 233 6 7837 22 Nov 04 12:23 LAG2 6 0 7 -36 +- 652 18 +- 312 6 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 16 Nov 04 00:15 LAG1 18 0 36 32 +- 22 8 +- 13 4 7838 16 Nov 04 02:57 LAG2 20 0 47 44 +- 28 2 +- 16 5 7838 16 Nov 04 07:20 LAG2 14 0 15 0 +- 64 9 +- 44 6 7838 16 Nov 04 10:19 LAG1 20 0 28 27 +- 21 0 +- 12 3 7838 16 Nov 04 11:03 LAG2 14 0 18 32 +- 54 13 +- 32 8 7838 17 Nov 04 01:13 LAG2 13 0 17 31 +- 54 -11 +- 35 3 7838 17 Nov 04 02:21 LAG1 19 0 14 12 +- 22 0 +- 14 7 7838 17 Nov 04 04:58 LAG2 19 0 32 23 +- 22 -15 +- 15 8 7838 20 Nov 04 03:11 LAG2 21 0 32 31 +- 21 6 +- 14 6 7838 20 Nov 04 08:23 LAG1 23 0 40 40 +- 20 -1 +- 10 4 7838 20 Nov 04 11:31 LAG2 16 0 26 41 +- 41 15 +- 27 2 7838 20 Nov 04 12:05 LAG1 17 0 5 3 +- 24 -1 +- 21 3 7838 21 Nov 04 05:29 LAG2 13 0 24 22 +- 26 3 +- 17 5 7838 21 Nov 04 07:11 LAG1 17 0 45 44 +- 23 -4 +- 17 8 7838 21 Nov 04 09:35 LAG2 21 0 38 36 +- 21 9 +- 11 5 7838 21 Nov 04 10:33 LAG1 24 0 16 14 +- 19 3 +- 10 3 7838 21 Nov 04 13:49 LAG2 15 0 6 3 +- 24 -6 +- 35 3 7838 22 Nov 04 02:35 LAG1 14 0 24 21 +- 25 -5 +- 21 4 7838 22 Nov 04 03:23 LAG2 11 0 27 24 +- 29 -2 +- 13 8 7838 22 Nov 04 07:41 LAG2 26 0 37 34 +- 18 9 +- 13 5 7838 22 Nov 04 09:09 LAG1 24 0 37 36 +- 19 -3 +- 9 2 7838 22 Nov 04 11:46 LAG2 26 0 12 11 +- 18 3 +- 12 3 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 23 Nov 04 19:01 LAG1 7 0 7 -25 +- 56 -13 +- 31 2 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 19 Nov 04 07:07 LAG1 17 0 13 9 +- 16 -6 +- 12 3 7840 19 Nov 04 10:39 LAG1 20 0 7 -6 +- 14 0 +- 8 3 7840 19 Nov 04 12:33 LAG2 9 0 12 -6 +- 47 4 +- 31 3 7840 19 Nov 04 17:37 LAG1 9 0 7 4 +- 36 8 +- 27 1 7840 22 Nov 04 11:17 LAG2 8 0 8 -2 +- 78 -3 +- 51 2 7840 22 Nov 04 13:37 LAG1 6 0 7 14 +- 88 5 +- 61 1 7840 22 Nov 04 17:27 LAG1 4 0 18 -17 +- 178 0 +- 82 1 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 16 Nov 04 07:43 LAG1 21 0 6 -3 +- 9 -1 +- 4 3 7941 18 Nov 04 14:59 LAG2 6 0 5 -2 +- 46 -1 +- 25 1 7941 18 Nov 04 15:31 LAG1 3 0 3 0 +- 39 11 +- 120 0 7941 19 Nov 04 07:03 LAG1 10 0 8 20 +- 48 6 +- 22 2 7941 19 Nov 04 21:17 LAG2 2 0 12 -47 +-1831 34 +-1804 0 7941 20 Nov 04 09:13 LAG1 7 0 9 -1 +- 87 3 +- 38 0 7941 20 Nov 04 10:57 LAG2 11 0 5 -5 +- 22 4 +- 15 4 7941 20 Nov 04 12:51 LAG1 9 0 9 8 +- 14 -6 +- 16 2 7941 20 Nov 04 14:43 LAG2 19 0 8 -7 +- 9 1 +- 5 3 7941 20 Nov 04 16:11 LAG1 5 0 3 -2 +- 53 1 +- 47 1 7941 20 Nov 04 19:15 LAG2 3 0 4 0 +- 30 -18 +- 159 2 7941 20 Nov 04 19:49 LAG1 14 0 7 0 +- 15 5 +- 12 3 7941 21 Nov 04 04:29 LAG1 9 0 10 7 +- 14 14 +- 29 1 7941 21 Nov 04 11:27 LAG1 6 0 12 1 +- 53 10 +- 39 1 7941 22 Nov 04 06:35 LAG1 9 0 12 25 +- 31 18 +- 21 1 7941 22 Nov 04 11:09 LAG2 8 5 6 -6 +- 46 -1 +- 144 0 7941 22 Nov 04 13:43 LAG1 9 0 8 13 +- 26 -5 +- 21 1 7941 22 Nov 04 15:03 LAG2 4 0 18 -11 +- 319 -15 +- 173 6 7941 22 Nov 04 16:45 LAG1 11 0 6 0 +- 39 -3 +- 18 2 7941 22 Nov 04 20:31 LAG1 4 0 15 5 +- 119 -10 +- 115 0 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 21 Nov 04 14:54 LAG1 2 0 36 4 +- 486 25 +- 305 0 8834 23 Nov 04 17:07 LAG2 12 0 18 -15 +- 12 -2 +- 6 10 -------------------------------------------------------------------------------- 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 - 041105 0/ 24/ 0 0/ 18/ 0 42 1831 LVIL 040815 - 041105 0/ 21/ 0 0/ 24/ 0 45 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 041123 0/157/ 0 0/ 87/ 0 244 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 040813 0/ 51/ 0 0/ 23/ 0 74 1884 RIGLAS 040310 - 041116 0/ 77/ 1 0/ 21/ 2 101 1893 CRMLAS 040331 - 041012 0/ 63/ 0 0/ 41/ 0 104 6405 TIGO 040103 - 041119 4/ 18/ 2 3/ 5/ 0 32 6810 ZIMLAT 040107 - 041124 194/223/ 32 156/152/ 18 775 7080 MLRS25 040104 - 041118 66/ 98/ 12 76/100/ 8 360 7090 ML0514 040101 - 041123 232/346/ 49 190/334/ 38 1189 7105 ML0725 040104 - 041115 20/106/ 9 5/104/ 9 253 7110 ML0414 040102 - 041120 118/231/ 21 124/168/ 24 686 7124 ML0819 040315 - 041002 0/ 37/ 0 0/ 16/ 0 53 7210 HOLLAS 040105 - 040607 33/ 49/ 3 50/ 52/ 6 193 7231 WUHA01 040408 - 041118 0/ 6/ 0 0/ 19/ 0 25 7237 CHALAS 040101 - 041121 0/345/ 6 0/239/ 2 592 7249 BEJLAS 040101 - 041110 0/225/ 1 0/192/ 0 418 7308 CRLLAS 040106 - 040311 5/ 47/ 0 0/ 38/ 2 92 7355 TROS02 040509 - 040829 0/ 84/ 0 0/ 34/ 0 118 7405 TIGO 040103 - 041119 1/ 15/ 2 0/ 4/ 0 22 7501 ML0616 040106 - 041116 65/ 66/ 19 93/151/ 14 408 7604 BREF 041017 - 041021 0/ 1/ 0 0/ 2/ 0 3 7806 METLAS 040720 - 041105 0/ 14/ 0 0/ 10/ 0 24 7810 ZIMLAT 040507 - 041124 209/139/ 28 140/ 98/ 19 633 7811 POLLAS 040105 - 041119 0/123/ 0 0/ 75/ 0 198 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 041123 0/146/ 0 0/116/ 1 263 7825 STL3 040807 - 041123 39/ 60/ 7 55/ 31/ 5 197 7832 SALRO 040102 - 041122 158/331/ 29 220/327/ 41 1106 7835 GRASSE 040301 - 041122 1/ 77/ 3 0/ 43/ 2 126 7836 GFZLAS 040105 - 040701 0/ 38/ 0 0/ 21/ 1 60 7837 CHILAS 040102 - 041122 0/100/ 0 0/127/ 1 228 7838 SHOLAS 040105 - 041122 44/230/ 4 79/200/ 11 568 7839 AUSLAS 040107 - 041123 142/215/ 32 84/160/ 20 653 7840 RGOLAS 040102 - 041122 140/231/ 41 117/133/ 20 682 7841 GFZLA3 040112 - 041022 26/104/ 16 16/ 73/ 10 245 7845 GRASLL 040318 - 040920 13/ 27/ 0 11/ 14/ 1 66 7941 MLROnn 040111 - 041124 118/150/ 23 115/110/ 9 525 8834 WLRS01 040108 - 041124 243/216/ 45 189/173/ 22 888 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 041117.0 207.2 +/- 0.1 325.4 +/- 0.1 -32534.28 +/- 0.01 041118.0 207.6 +/- 0.1 321.9 +/- 0.1 -32534.85 +/- 0.02 041119.0 206.9 +/- 0.1 320.1 +/- 0.1 -32535.71 +/- 0.04 041120.0 206.4 +/- 0.1 318.0 +/- 0.1 -32536.75 +/- 0.04 041121.0 206.3 +/- 0.1 315.3 +/- 0.1 -32538.00 +/- 0.05 041122.0 204.8 +/- 0.1 313.3 +/- 0.1 -32539.32 +/- 0.05 041123.0 204.5 +/- 0.1 310.3 +/- 0.2 -32540.66 +/- 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, 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 ******************************************************************************** |