| Date: | 2005-07-18 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 5659: Delft QL Report July 18, 2005 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2005-07-18 13:15:00 UTC Message No. 5659 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report July 18, 2005 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS July 18, 2005 This is a daily report, presenting the results of a continuing analysis of the most recent global LAGEOS-1 and LAGEOS-2 quick-look laser ranging data. The report consists of (A) a pass summary, (B) an overview of the analysis results, detailed statistics of the analysed measurements, and an accumulative pass overview and (C) the earth rotation parameter solutions submitted to IERS. The report is based on all quick-look data as received until Mon, Jul 18, 2005. Questions and comments should be addressed to: R. Noomen Delft University of Technology Faculty of Aerospace Engineering Delft Institute for Earth-Oriented Space Research Kluyverweg 1 2629 HS Delft The Netherlands Telephone: +31-15-2785377 Telefax : +31-15-2785322 E-mail : ron.noomen@deos.tudelft.nl A. PASS SUMMARY The table below gives an overview of the ranging data both on LAGEOS-1 and LAGEOS-2, as received by the Quick-Look Data Analysis Center (QLDAC) on Mon, Jul 18, 2005. All data were obtained through the NASA Crustal Dynamics Data Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany. The data are unscreened and may span more than a week due to late reporting by the stations. ------------------------------------------------------------------------------ Station System/Location Period No. of Passes ID LAGEOS-1 LAGEOS-2 ------------------------------------------------------------------------------ 1864 Maidanak, Uzbekistan (site 2) 050715 - 050717 3 - 6810 Zimmerwald 846, Switzerland 050716 - 050718 6 6 7080 McDonald Obs., Fort Davis, TX 050717 - 050717 1 1 7090 Yarragadee, Australia 050716 - 050717 3 3 7110 Monument Peak, California 050716 - 050716 2 - 7355 Urumqi, China (TROS) 050717 - 050717 2 - 7501 Hartebeesthoek, SA (MOB-6) 050716 - 050716 1 1 7810 Zimmerwald 423, Switzerland 050716 - 050718 6 6 7825 Mount Stromlo, Australia 050716 - 050717 5 4 7832 Riyad, Saudi Arabia 050716 - 050718 5 4 7838 Simosato Observatory, Japan 050716 - 050716 2 - 7839 Graz, Austria 050715 - 050718 4 2 7840 Herstmonceux, United Kingdom 050716 - 050717 7 6 7841 Potsdam, Germany 050716 - 050717 2 - 7848 Ajaccio, Corsica (FTLRS) 050717 - 050717 1 - 7941 Matera, Italy (MLRO 532) 050716 - 050718 7 2 8834 Wettzell, Germany 050716 - 050718 3 3 ------ ------ --- --- TOTAL 050715 - 050718 60 38 ------------------------------------------------------------------------------ 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 Sun, Jul 10, 2005 to Mon, Jul 18, 2005. The measurement and dynamic models used in this analysis are close to the IERS Standard. The overall model is referred to as QLDACMOD11. The details of this model can be obtained on request. The terrestrial reference frame is provided by the ITRF2000 station coordinates solution (extended with coordinates of new stations, where necessary). The general statistics and results of this week´s analysis are thus: ----------------------------------------------------------------------- Satellite LAGEOS-1 LAGEOS-2 Number of Stations 22 14 Number of Passes 232/229 151/151 Number of Normal Points 2599/2558 1813/1809 Weighted RMS of Fit (mm) 12 10 ----------------------------------------------------------------------- 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 10 Jul 05 18:33 LAG1 13 0 17 -5 +- 166 0 +- 82 16 1864 11 Jul 05 17:11 LAG1 10 0 35 24 +- 199 -6 +- 111 17 1864 12 Jul 05 19:22 LAG1 12 0 16 -6 +- 176 -6 +- 103 11 1864 13 Jul 05 17:59 LAG1 11 0 16 11 +- 181 0 +- 89 11 1864 15 Jul 05 18:56 LAG1 11 0 21 4 +- 197 -7 +- 135 19 1864 15 Jul 05 22:28 LAG1 2 0 61 -67 +- 466 -107 +-2775 0 1864 17 Jul 05 19:37 LAG1 11 0 31 2 +- 185 -11 +- 119 25 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 11 Jul 05 21:20 LAG1 3 0 129 269 +-5083 -56 +-2025 14 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 10 Jul 05 00:00 LAG1 3 0 8 -31 +-2831 9 +-1182 0 1884 10 Jul 05 22:17 LAG1 13 0 24 -25 +- 91 10 +- 65 6 1884 11 Jul 05 20:46 LAG1 12 0 16 3 +- 86 -8 +- 50 3 1884 12 Jul 05 23:09 LAG1 13 0 13 -15 +- 118 10 +- 71 4 1884 13 Jul 05 21:36 LAG1 16 0 29 -28 +- 75 -2 +- 49 8 1884 15 Jul 05 22:35 LAG1 13 0 27 -32 +- 118 4 +- 71 3 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 10 Jul 05 00:13 LAG1 4 0 21 -26 +-1921 1 +- 686 3 6810 10 Jul 05 03:08 LAG1 17 0 12 -10 +- 46 6 +- 30 4 6810 10 Jul 05 06:36 LAG1 10 0 28 -29 +- 61 2 +- 36 2 6810 10 Jul 05 06:59 LAG2 2 0 45 -132 +-3104 -87 +-3112 0 6810 10 Jul 05 10:02 LAG1 21 0 19 -14 +- 41 -5 +- 27 5 6810 10 Jul 05 10:39 LAG2 13 0 15 -13 +- 64 1 +- 33 3 6810 11 Jul 05 17:05 LAG2 20 0 20 -16 +- 42 -4 +- 25 3 6810 11 Jul 05 20:43 LAG1 19 0 29 -21 +- 42 -10 +- 20 6 6810 11 Jul 05 21:07 LAG2 2 0 35 -39 +- 419 -6 +- 694 0 6810 12 Jul 05 00:17 LAG1 15 0 32 -31 +- 47 -2 +- 19 5 6810 12 Jul 05 03:49 LAG1 21 0 25 -24 +- 40 -2 +- 23 4 6810 12 Jul 05 07:06 LAG2 6 0 29 -22 +- 75 13 +- 61 1 6810 12 Jul 05 07:11 LAG1 18 0 34 -24 +- 45 -8 +- 21 3 6810 12 Jul 05 10:53 LAG1 16 0 35 -33 +- 45 -9 +- 42 3 6810 12 Jul 05 11:03 LAG2 14 0 19 -18 +- 54 8 +- 27 3 6810 12 Jul 05 14:59 LAG2 20 0 16 -15 +- 41 3 +- 25 4 6810 12 Jul 05 19:09 LAG2 21 0 25 -24 +- 41 -2 +- 27 4 6810 12 Jul 05 19:22 LAG1 14 0 21 -21 +- 54 -1 +- 49 5 6810 12 Jul 05 23:19 LAG1 7 0 25 -24 +- 89 -1 +- 56 1 6810 13 Jul 05 02:28 LAG1 9 0 28 -24 +- 61 5 +- 35 3 6810 13 Jul 05 06:01 LAG1 16 0 13 -12 +- 47 -1 +- 31 2 6810 13 Jul 05 17:19 LAG2 23 0 20 -16 +- 42 -3 +- 24 3 6810 13 Jul 05 21:31 LAG1 20 0 29 -27 +- 41 -3 +- 17 6 6810 14 Jul 05 01:06 LAG1 8 0 35 -30 +- 65 5 +- 30 7 6810 14 Jul 05 04:39 LAG1 19 0 32 -33 +- 43 4 +- 26 5 6810 14 Jul 05 07:17 LAG2 6 0 51 -22 +- 368 21 +- 263 2 6810 14 Jul 05 07:55 LAG1 28 0 30 -29 +- 34 -1 +- 16 7 6810 14 Jul 05 11:06 LAG2 18 0 28 -27 +- 46 0 +- 23 7 6810 14 Jul 05 15:17 LAG2 21 0 25 -25 +- 39 2 +- 21 3 6810 14 Jul 05 20:21 LAG1 16 0 26 -19 +- 48 -8 +- 31 3 6810 14 Jul 05 23:43 LAG1 24 0 29 -27 +- 37 3 +- 17 6 6810 15 Jul 05 03:15 LAG1 21 0 29 -28 +- 39 5 +- 23 5 6810 15 Jul 05 06:37 LAG1 21 0 19 -18 +- 40 -1 +- 18 5 6810 15 Jul 05 09:13 LAG2 19 0 27 -24 +- 41 -5 +- 21 4 6810 15 Jul 05 10:13 LAG1 14 0 23 -18 +- 50 -5 +- 38 7 6810 15 Jul 05 13:31 LAG2 17 0 15 -14 +- 53 0 +- 34 3 6810 15 Jul 05 17:33 LAG2 15 0 6 -2 +- 47 -3 +- 35 3 6810 15 Jul 05 18:53 LAG1 9 0 17 -15 +- 64 -8 +- 87 9 6810 15 Jul 05 22:25 LAG1 19 0 10 -2 +- 42 -4 +- 20 2 6810 16 Jul 05 01:55 LAG1 17 0 16 -13 +- 44 4 +- 27 3 6810 16 Jul 05 11:34 LAG2 11 0 13 -9 +- 63 -3 +- 46 3 6810 16 Jul 05 19:33 LAG2 11 0 24 -22 +- 55 -7 +- 46 2 6810 16 Jul 05 20:57 LAG1 19 0 11 -6 +- 44 -3 +- 23 9 6810 17 Jul 05 07:35 LAG1 14 0 5 -2 +- 59 0 +- 27 4 6810 17 Jul 05 09:59 LAG2 3 0 30 -21 +- 411 -5 +- 272 0 6810 17 Jul 05 13:39 LAG2 17 0 16 -16 +- 44 1 +- 28 2 6810 17 Jul 05 17:47 LAG2 12 0 5 -4 +- 55 0 +- 54 3 6810 17 Jul 05 19:36 LAG1 24 0 16 -15 +- 37 3 +- 25 4 6810 17 Jul 05 23:23 LAG1 14 0 7 -3 +- 53 -2 +- 31 4 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 11 Jul 05 06:01 LAG1 15 0 13 12 +- 18 0 +- 10 2 7080 12 Jul 05 04:35 LAG1 7 0 39 32 +- 74 -4 +- 45 5 7080 12 Jul 05 05:03 LAG2 2 0 10 39 +- 943 -25 +- 819 0 7080 14 Jul 05 00:55 LAG2 17 0 10 -5 +- 17 7 +- 12 1 7080 14 Jul 05 15:48 LAG1 8 0 3 0 +- 71 1 +- 37 2 7080 14 Jul 05 18:55 LAG2 5 0 6 -7 +- 91 2 +- 94 3 7080 14 Jul 05 23:09 LAG2 14 0 6 -6 +- 35 0 +- 23 4 7080 15 Jul 05 21:13 LAG2 3 0 11 -23 +- 221 16 +- 292 0 7080 17 Jul 05 03:19 LAG2 8 0 8 -1 +- 23 -15 +- 41 1 7080 17 Jul 05 05:10 LAG1 8 0 11 32 +- 90 -17 +- 40 3 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 10 Jul 05 01:51 LAG1 10 0 25 -48 +- 25 -26 +- 17 2 7090 10 Jul 05 05:37 LAG1 8 0 16 18 +- 30 -24 +- 25 3 7090 10 Jul 05 08:51 LAG1 8 0 4 -4 +- 22 4 +- 31 4 7090 10 Jul 05 11:56 LAG1 14 0 19 -11 +- 11 6 +- 8 10 7090 10 Jul 05 12:31 LAG2 12 0 8 -1 +- 24 7 +- 19 1 7090 10 Jul 05 15:27 LAG1 17 0 12 3 +- 10 8 +- 7 1 7090 10 Jul 05 16:11 LAG2 24 0 2 -1 +- 8 0 +- 6 1 7090 10 Jul 05 20:27 LAG2 26 0 2 -1 +- 8 0 +- 5 2 7090 11 Jul 05 00:45 LAG2 14 0 4 -2 +- 13 -3 +- 12 3 7090 11 Jul 05 04:23 LAG1 4 0 22 -35 +- 104 8 +- 63 3 7090 11 Jul 05 10:43 LAG1 16 0 6 -2 +- 11 -3 +- 8 2 7090 11 Jul 05 14:03 LAG1 13 0 13 -14 +- 15 0 +- 10 1 7090 11 Jul 05 14:41 LAG2 13 0 16 -7 +- 33 -5 +- 19 1 7090 11 Jul 05 18:25 LAG2 28 0 10 0 +- 7 -7 +- 6 1 7090 11 Jul 05 22:45 LAG2 18 0 9 -7 +- 10 2 +- 6 3 7090 12 Jul 05 03:07 LAG1 4 0 35 -48 +- 242 6 +- 112 1 7090 12 Jul 05 21:09 LAG2 17 0 6 -10 +- 17 5 +- 12 1 7090 13 Jul 05 11:19 LAG1 19 0 18 -1 +- 9 9 +- 5 2 7090 15 Jul 05 19:31 LAG2 2 0 11 -3 +- 390 -15 +- 726 0 7090 15 Jul 05 23:26 LAG2 16 0 8 -8 +- 13 3 +- 9 5 7090 16 Jul 05 04:14 LAG1 10 0 18 -14 +- 14 -6 +- 10 12 7090 16 Jul 05 10:51 LAG1 17 0 20 -15 +- 11 11 +- 6 2 7090 16 Jul 05 12:45 LAG2 26 0 4 -2 +- 8 -1 +- 5 2 7090 16 Jul 05 14:17 LAG1 21 0 13 -4 +- 9 6 +- 4 2 7090 16 Jul 05 17:03 LAG2 25 0 14 3 +- 8 -12 +- 7 2 7090 16 Jul 05 21:17 LAG2 24 0 6 -2 +- 8 3 +- 5 1 7090 17 Jul 05 03:10 LAG1 9 0 43 -52 +- 28 6 +- 17 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 11 Jul 05 02:43 LAG2 2 0 1 -7 +- 139 23 +- 396 0 7110 11 Jul 05 13:01 LAG1 5 0 15 25 +- 42 -16 +- 53 4 7110 11 Jul 05 20:21 LAG2 9 0 4 3 +- 14 -2 +- 22 2 7110 12 Jul 05 00:37 LAG2 6 0 4 2 +- 28 6 +- 41 3 7110 12 Jul 05 04:31 LAG2 10 0 15 -9 +- 27 5 +- 24 2 7110 12 Jul 05 05:07 LAG1 4 0 8 71 +- 342 -34 +- 151 1 7110 12 Jul 05 08:03 LAG1 6 0 19 0 +- 22 -12 +- 14 5 7110 12 Jul 05 11:34 LAG1 7 0 9 5 +- 16 -10 +- 19 2 7110 12 Jul 05 14:53 LAG1 4 0 5 12 +- 88 6 +- 75 2 7110 12 Jul 05 18:24 LAG1 2 0 7 82 +- 428 65 +- 361 0 7110 12 Jul 05 22:37 LAG2 9 0 4 0 +- 14 -5 +- 24 2 7110 13 Jul 05 02:39 LAG2 23 0 8 -5 +- 9 5 +- 5 2 7110 13 Jul 05 03:23 LAG1 7 0 3 -1 +- 17 -3 +- 43 2 7110 13 Jul 05 06:41 LAG1 10 0 16 8 +- 16 -6 +- 11 2 7110 13 Jul 05 16:59 LAG1 10 0 10 2 +- 13 1 +- 11 10 7110 16 Jul 05 05:03 LAG2 6 0 7 0 +- 32 -13 +- 57 1 7110 16 Jul 05 06:13 LAG1 1 0 32 0 +- 0 0 +- 0 0 7110 16 Jul 05 09:49 LAG1 7 0 10 9 +- 16 3 +- 29 1 7110 16 Jul 05 16:29 LAG1 5 1 3 -5 +- 39 -4 +- 57 0 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 10 Jul 05 14:53 LAG1 5 0 22 -48 +- 185 -27 +- 154 6 7237 11 Jul 05 13:23 LAG1 7 0 32 -73 +- 225 -26 +- 130 5 7237 13 Jul 05 14:39 LAG1 5 0 23 44 +- 524 -9 +- 234 5 Station 7355 (Urumqi) (position solved, acc. 10 mm) 7355 17 Jul 05 16:03 LAG1 8 5 126 596 +- 162 342 +- 111 3*CHK* 7355 17 Jul 05 19:39 LAG1 9 2 10 -4 +- 20 6 +- 24 10 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 12 Jul 05 16:51 LAG1 11 0 8 0 +- 18 6 +- 15 1 7501 12 Jul 05 19:55 LAG2 6 0 9 -2 +- 21 5 +- 14 1 7501 12 Jul 05 20:21 LAG1 11 0 8 10 +- 21 -1 +- 14 1 7501 13 Jul 05 00:15 LAG2 21 0 14 0 +- 9 15 +- 10 1 7501 13 Jul 05 04:37 LAG2 4 0 11 11 +- 146 17 +- 110 1 7501 13 Jul 05 15:33 LAG1 3 0 13 28 +- 73 46 +- 191 1 7501 13 Jul 05 18:01 LAG2 6 0 13 8 +- 17 6 +- 9 4 7501 13 Jul 05 18:49 LAG1 18 0 9 9 +- 11 -1 +- 5 2 7501 13 Jul 05 22:19 LAG2 5 0 15 -4 +- 39 21 +- 73 0 7501 14 Jul 05 02:41 LAG2 3 0 6 29 +- 197 34 +- 200 0 7501 14 Jul 05 06:43 LAG2 11 0 12 10 +- 15 15 +- 18 5 7501 14 Jul 05 07:23 LAG1 10 0 4 5 +- 22 6 +- 17 1 7501 14 Jul 05 17:39 LAG1 11 0 19 18 +- 21 0 +- 14 1 7501 15 Jul 05 04:39 LAG2 13 0 6 14 +- 28 7 +- 17 2 7501 15 Jul 05 16:13 LAG1 11 0 18 17 +- 12 3 +- 15 0 7501 15 Jul 05 18:17 LAG2 11 0 8 12 +- 21 4 +- 18 1 7501 15 Jul 05 19:29 LAG1 18 0 16 11 +- 9 -5 +- 5 2 7501 16 Jul 05 18:17 LAG1 17 0 11 12 +- 11 -2 +- 6 3 7501 16 Jul 05 20:19 LAG2 15 0 17 -10 +- 12 6 +- 10 5 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 10 Jul 05 00:13 LAG1 4 0 1 26 +-1958 -9 +- 700 1 7810 10 Jul 05 03:08 LAG1 15 0 10 2 +- 47 6 +- 35 2 7810 10 Jul 05 06:36 LAG1 9 0 13 -12 +- 62 3 +- 42 4 7810 10 Jul 05 07:02 LAG2 1 0 35 0 +- 0 0 +- 0 0 7810 10 Jul 05 10:03 LAG1 17 0 8 1 +- 46 -5 +- 33 5 7810 10 Jul 05 10:40 LAG2 12 0 3 0 +- 64 1 +- 34 2 7810 11 Jul 05 17:05 LAG2 12 0 8 2 +- 55 -4 +- 34 6 7810 11 Jul 05 20:49 LAG1 16 0 19 -2 +- 45 -10 +- 25 5 7810 11 Jul 05 21:07 LAG2 2 0 12 -7 +- 427 7 +- 714 0 7810 12 Jul 05 00:23 LAG1 7 0 14 -13 +- 69 -2 +- 27 1 7810 12 Jul 05 03:51 LAG1 19 0 6 -4 +- 42 -2 +- 26 3 7810 12 Jul 05 07:12 LAG1 16 0 18 0 +- 56 -8 +- 27 3 7810 12 Jul 05 11:02 LAG1 10 0 14 -10 +- 58 -11 +- 81 2 7810 12 Jul 05 11:03 LAG2 13 0 17 3 +- 55 7 +- 28 4 7810 12 Jul 05 15:03 LAG2 17 0 9 5 +- 44 3 +- 28 5 7810 12 Jul 05 19:09 LAG2 11 0 2 -1 +- 55 0 +- 37 2 7810 12 Jul 05 19:31 LAG1 11 0 4 1 +- 56 -1 +- 66 3 7810 12 Jul 05 23:19 LAG1 8 0 4 -4 +- 88 0 +- 49 1 7810 13 Jul 05 02:37 LAG1 8 0 8 -2 +- 68 4 +- 40 3 7810 13 Jul 05 06:05 LAG1 13 0 6 6 +- 56 0 +- 41 1 7810 13 Jul 05 13:18 LAG2 10 0 9 9 +- 62 -2 +- 47 1 7810 13 Jul 05 17:19 LAG2 17 0 6 4 +- 44 -2 +- 33 3 7810 13 Jul 05 21:31 LAG1 17 0 8 -5 +- 44 -2 +- 20 4 7810 14 Jul 05 01:07 LAG1 9 0 17 -13 +- 61 4 +- 27 4 7810 14 Jul 05 04:39 LAG1 19 0 8 -7 +- 43 3 +- 26 3 7810 14 Jul 05 07:18 LAG2 5 0 21 -8 +- 312 10 +- 256 1 7810 14 Jul 05 07:57 LAG1 26 0 5 -3 +- 35 -1 +- 17 4 7810 14 Jul 05 11:05 LAG2 15 0 8 0 +- 47 3 +- 24 3 7810 14 Jul 05 15:17 LAG2 20 0 6 4 +- 40 2 +- 21 3 7810 14 Jul 05 20:22 LAG1 14 0 13 8 +- 52 -8 +- 36 2 7810 14 Jul 05 23:43 LAG1 23 0 9 -2 +- 38 3 +- 18 5 7810 15 Jul 05 03:15 LAG1 20 0 10 -2 +- 40 5 +- 25 3 7810 15 Jul 05 06:45 LAG1 16 0 6 1 +- 46 -2 +- 23 4 7810 15 Jul 05 09:17 LAG2 15 0 10 -1 +- 47 -4 +- 25 5 7810 15 Jul 05 10:18 LAG1 11 0 6 4 +- 57 -2 +- 58 4 7810 15 Jul 05 13:31 LAG2 18 0 4 0 +- 53 -1 +- 33 3 7810 15 Jul 05 17:33 LAG2 12 0 9 8 +- 54 -2 +- 49 1 7810 15 Jul 05 18:58 LAG1 4 0 11 -13 +- 199 -12 +- 288 9 7810 15 Jul 05 22:25 LAG1 17 0 9 0 +- 44 -4 +- 20 2 7810 16 Jul 05 01:55 LAG1 18 0 7 -3 +- 43 3 +- 26 3 7810 16 Jul 05 11:43 LAG2 10 0 11 7 +- 80 -11 +- 60 2 7810 16 Jul 05 19:33 LAG2 2 0 6 55 +-4143 27 +-2332 0 7810 16 Jul 05 20:57 LAG1 18 0 5 1 +- 48 0 +- 26 5 7810 17 Jul 05 07:34 LAG1 10 0 8 6 +- 65 -2 +- 32 5 7810 17 Jul 05 09:59 LAG2 3 0 23 26 +- 782 -38 +- 610 1 7810 17 Jul 05 13:39 LAG2 14 0 11 -10 +- 54 0 +- 38 3 7810 17 Jul 05 17:47 LAG2 11 0 5 4 +- 64 -1 +- 63 2 7810 17 Jul 05 19:36 LAG1 20 0 16 -13 +- 42 4 +- 32 3 7810 17 Jul 05 23:31 LAG1 12 0 3 -2 +- 71 0 +- 43 2 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 11 Jul 05 20:52 LAG1 9 0 32 26 +- 61 -9 +- 40 11 7811 12 Jul 05 00:26 LAG1 13 0 11 7 +- 50 -4 +- 39 6 7811 13 Jul 05 21:47 LAG1 12 0 19 19 +- 58 -4 +- 46 8 7811 14 Jul 05 20:19 LAG1 15 0 30 30 +- 48 -8 +- 39 8 7811 14 Jul 05 23:47 LAG1 17 0 22 19 +- 44 -1 +- 27 9 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 11 Jul 05 02:15 LAG1 4 0 97 28 +- 250 58 +- 215 14 7824 11 Jul 05 21:03 LAG1 3 0 70 34 +-1039 -21 +- 631 3 7824 11 Jul 05 21:23 LAG2 7 0 58 67 +- 124 -8 +- 105 4 7824 12 Jul 05 00:33 LAG1 3 0 55 55 +-1436 0 +- 595 0 7824 12 Jul 05 23:17 LAG1 3 0 62 127 +- 845 33 +- 434 1 7824 13 Jul 05 21:51 LAG1 2 0 51 -486 +-9999 -245 +-4630 0 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 10 Jul 05 05:23 LAG1 6 0 15 31 +- 50 -16 +- 43 5 7825 10 Jul 05 08:23 LAG1 18 0 10 -4 +- 10 -6 +- 6 3 7825 10 Jul 05 11:49 LAG1 14 0 7 3 +- 13 4 +- 9 4 7825 10 Jul 05 12:51 LAG2 10 0 14 4 +- 46 5 +- 26 5 7825 10 Jul 05 17:24 LAG2 1 0 10 0 +- 0 0 +- 0 0 7825 10 Jul 05 20:41 LAG2 29 0 12 10 +- 7 2 +- 4 3 7825 11 Jul 05 00:21 LAG1 15 0 11 5 +- 10 -3 +- 7 9 7825 11 Jul 05 07:13 LAG1 7 0 11 6 +- 17 -9 +- 30 5 7825 11 Jul 05 10:37 LAG1 9 0 5 -3 +- 14 -4 +- 15 1 7825 11 Jul 05 10:53 LAG2 9 0 14 2 +- 27 -10 +- 17 2 7825 11 Jul 05 14:13 LAG1 9 0 16 -14 +- 14 -9 +- 29 2 7825 11 Jul 05 14:33 LAG2 25 0 13 -4 +- 8 -7 +- 5 2 7825 11 Jul 05 18:53 LAG2 20 0 5 0 +- 10 -3 +- 7 3 7825 13 Jul 05 23:46 LAG1 5 0 8 -17 +- 46 -11 +- 30 4 7825 14 Jul 05 09:03 LAG2 9 0 8 -4 +- 14 4 +- 18 6 7825 14 Jul 05 09:57 LAG1 15 0 4 -3 +- 11 0 +- 5 2 7825 14 Jul 05 12:49 LAG2 18 0 6 3 +- 12 4 +- 8 4 7825 14 Jul 05 13:45 LAG1 2 0 2 -5 +- 75 31 +- 520 0 7825 15 Jul 05 02:21 LAG1 6 0 16 -105 +- 138 46 +- 60 9 7825 15 Jul 05 08:33 LAG1 14 0 5 -4 +- 11 0 +- 6 3 7825 15 Jul 05 10:53 LAG2 24 0 4 -2 +- 8 0 +- 5 3 7825 15 Jul 05 11:59 LAG1 19 0 7 1 +- 9 3 +- 5 3 7825 16 Jul 05 00:51 LAG1 7 0 15 -13 +- 41 -1 +- 27 2 7825 16 Jul 05 07:22 LAG1 13 0 18 -2 +- 12 -7 +- 10 15 7825 16 Jul 05 21:25 LAG2 21 0 8 -4 +- 9 3 +- 7 3 7825 16 Jul 05 23:07 LAG1 15 0 6 -5 +- 12 -5 +- 9 1 7825 17 Jul 05 09:27 LAG1 15 0 6 -2 +- 11 4 +- 7 2 7825 17 Jul 05 11:17 LAG2 16 0 11 6 +- 10 5 +- 8 3 7825 17 Jul 05 12:55 LAG1 13 0 4 -1 +- 11 0 +- 10 3 7825 17 Jul 05 15:16 LAG2 25 0 9 4 +- 8 -6 +- 6 2 7825 17 Jul 05 19:29 LAG2 27 0 7 5 +- 8 2 +- 4 2 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 10 Jul 05 06:13 LAG1 4 0 6 -22 +- 200 -15 +- 117 3 7832 10 Jul 05 15:45 LAG2 6 0 14 3 +- 141 5 +- 82 2 7832 10 Jul 05 18:41 LAG1 16 0 3 2 +- 21 0 +- 12 3 7832 10 Jul 05 22:29 LAG1 7 0 11 -12 +- 37 21 +- 50 5 7832 11 Jul 05 05:13 LAG1 6 0 29 26 +- 143 1 +- 70 3 7832 11 Jul 05 17:31 LAG2 14 0 10 7 +- 17 -5 +- 17 4 7832 11 Jul 05 20:53 LAG1 7 0 8 -23 +- 119 -14 +- 59 1 7832 12 Jul 05 15:35 LAG2 9 0 4 1 +- 43 0 +- 34 4 7832 12 Jul 05 19:49 LAG1 9 0 13 -17 +- 32 5 +- 24 4 7832 13 Jul 05 06:03 LAG1 7 0 7 11 +- 184 -1 +- 74 2 7832 13 Jul 05 13:41 LAG2 9 0 29 -30 +- 24 3 +- 20 5 7832 13 Jul 05 17:37 LAG2 10 0 7 6 +- 20 -2 +- 16 2 7832 13 Jul 05 18:15 LAG1 9 0 5 4 +- 38 2 +- 29 4 7832 16 Jul 05 07:45 LAG2 6 0 8 4 +- 30 -14 +- 57 5 7832 16 Jul 05 15:57 LAG2 16 0 5 0 +- 19 -3 +- 14 2 7832 16 Jul 05 17:37 LAG1 2 0 3 -29 +-2011 -11 +- 909 0 7832 16 Jul 05 21:15 LAG1 11 0 12 -12 +- 19 -3 +- 20 1 7832 17 Jul 05 07:33 LAG1 6 1 19 8 +- 125 8 +- 91 1 7832 17 Jul 05 16:25 LAG1 9 0 16 15 +- 22 6 +- 40 2 7832 17 Jul 05 18:11 LAG2 6 0 10 -16 +- 47 -19 +- 73 5 7832 17 Jul 05 19:43 LAG1 16 0 13 -15 +- 20 -5 +- 11 4 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 14 Jul 05 00:37 LAG1 11 0 46 26 +- 40 17 +- 30 10 7838 14 Jul 05 13:09 LAG1 6 0 32 47 +- 66 -21 +- 69 3 7838 14 Jul 05 16:31 LAG1 9 0 41 42 +- 33 -3 +- 36 6 7838 15 Jul 05 06:25 LAG2 7 0 64 58 +- 49 4 +- 58 17 7838 15 Jul 05 10:26 LAG2 7 0 53 55 +- 38 15 +- 63 9 7838 15 Jul 05 11:29 LAG1 13 0 26 20 +- 27 -1 +- 23 16 7838 15 Jul 05 15:09 LAG1 10 0 29 27 +- 30 -6 +- 30 4 7838 16 Jul 05 13:35 LAG1 17 0 36 32 +- 25 -1 +- 13 12 7838 16 Jul 05 17:09 LAG1 12 0 47 43 +- 28 -11 +- 26 4 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 13 Jul 05 06:12 LAG1 7 0 10 12 +- 41 -1 +- 20 0 7839 13 Jul 05 09:13 LAG2 4 0 6 -4 +- 172 1 +- 105 0 7839 13 Jul 05 09:45 LAG1 2 0 2 -1 +- 45 -1 +- 295 0 7839 13 Jul 05 13:11 LAG2 16 0 4 -3 +- 10 -1 +- 7 1 7839 14 Jul 05 20:11 LAG1 16 0 15 4 +- 10 -7 +- 5 2 7839 14 Jul 05 23:43 LAG1 25 0 4 0 +- 8 1 +- 4 2 7839 15 Jul 05 03:11 LAG1 16 0 13 -1 +- 10 7 +- 5 1 7839 15 Jul 05 07:01 LAG1 7 0 8 0 +- 39 -3 +- 16 2 7839 15 Jul 05 09:23 LAG2 21 0 7 -1 +- 9 -3 +- 5 1 7839 15 Jul 05 10:31 LAG1 10 0 9 10 +- 16 -4 +- 23 1 7839 15 Jul 05 13:25 LAG2 14 0 4 -4 +- 11 0 +- 7 1 7839 15 Jul 05 17:41 LAG2 13 0 7 6 +- 12 -6 +- 11 0 7839 15 Jul 05 18:59 LAG1 14 0 3 1 +- 12 -3 +- 11 1 7839 17 Jul 05 19:43 LAG1 13 0 9 -8 +- 13 1 +- 12 1 7839 17 Jul 05 23:17 LAG1 21 0 4 0 +- 9 -2 +- 5 0 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 10 Jul 05 00:00 LAG1 8 0 13 -11 +- 82 0 +- 40 1 7840 10 Jul 05 10:07 LAG1 15 0 4 2 +- 17 -1 +- 13 3 7840 10 Jul 05 10:47 LAG2 10 0 12 3 +- 20 6 +- 12 2 7840 10 Jul 05 14:49 LAG2 14 0 10 12 +- 21 5 +- 16 2 7840 10 Jul 05 18:57 LAG2 12 0 8 -6 +- 19 -7 +- 20 1 7840 11 Jul 05 12:51 LAG2 23 0 11 5 +- 13 -3 +- 8 7 7840 11 Jul 05 16:57 LAG2 19 0 10 4 +- 15 -5 +- 9 3 7840 11 Jul 05 20:55 LAG1 13 0 17 9 +- 18 -14 +- 16 3 7840 12 Jul 05 00:26 LAG1 3 0 10 10 +- 68 0 +- 43 1 7840 12 Jul 05 19:09 LAG2 17 0 6 0 +- 16 -4 +- 13 1 7840 12 Jul 05 22:59 LAG1 15 0 5 1 +- 17 -2 +- 8 2 7840 13 Jul 05 09:09 LAG2 7 0 12 11 +- 90 15 +- 62 2 7840 13 Jul 05 09:43 LAG1 13 0 4 2 +- 24 -3 +- 16 2 7840 13 Jul 05 13:05 LAG2 22 0 7 6 +- 14 0 +- 8 4 7840 13 Jul 05 17:23 LAG2 15 0 8 7 +- 21 -6 +- 15 3 7840 13 Jul 05 21:43 LAG1 15 0 12 0 +- 17 -6 +- 9 2 7840 14 Jul 05 01:15 LAG1 19 0 5 4 +- 15 0 +- 8 2 7840 14 Jul 05 08:09 LAG1 13 0 4 3 +- 21 0 +- 15 3 7840 14 Jul 05 11:10 LAG2 15 0 16 5 +- 17 7 +- 9 4 7840 14 Jul 05 15:15 LAG2 18 0 9 6 +- 16 4 +- 10 6 7840 14 Jul 05 19:23 LAG2 13 0 14 -10 +- 19 -5 +- 16 3 7840 14 Jul 05 20:21 LAG1 11 0 15 9 +- 20 -11 +- 23 2 7840 14 Jul 05 23:51 LAG1 21 0 6 3 +- 14 -1 +- 7 3 7840 15 Jul 05 10:31 LAG1 11 0 5 5 +- 20 0 +- 24 1 7840 15 Jul 05 13:35 LAG2 15 0 8 9 +- 25 -1 +- 16 2 7840 15 Jul 05 17:39 LAG2 14 0 9 9 +- 26 -8 +- 17 2 7840 15 Jul 05 22:31 LAG1 17 0 14 5 +- 16 -7 +- 8 3 7840 16 Jul 05 01:59 LAG1 16 0 5 3 +- 16 0 +- 9 3 7840 16 Jul 05 05:29 LAG1 17 0 3 0 +- 16 0 +- 10 3 7840 16 Jul 05 08:57 LAG1 19 0 11 6 +- 15 -5 +- 9 3 7840 16 Jul 05 11:23 LAG2 6 0 8 26 +- 142 9 +- 67 2 7840 16 Jul 05 15:33 LAG2 10 0 9 4 +- 21 -3 +- 13 3 7840 16 Jul 05 19:37 LAG2 9 0 21 -15 +- 22 -11 +- 21 2 7840 16 Jul 05 21:09 LAG1 14 0 13 7 +- 18 -8 +- 13 5 7840 17 Jul 05 00:37 LAG1 17 0 6 2 +- 16 1 +- 7 4 7840 17 Jul 05 04:17 LAG1 12 0 10 5 +- 22 4 +- 17 1 7840 17 Jul 05 07:35 LAG1 15 0 10 9 +- 17 0 +- 8 2 7840 17 Jul 05 09:58 LAG2 7 0 3 -12 +- 106 6 +- 60 1 7840 17 Jul 05 13:37 LAG2 18 0 4 0 +- 15 2 +- 9 2 7840 17 Jul 05 17:38 LAG2 14 0 4 2 +- 19 -1 +- 14 1 7840 17 Jul 05 19:51 LAG1 7 0 1 0 +- 25 3 +- 59 1 7840 17 Jul 05 23:15 LAG1 19 0 8 -3 +- 15 -3 +- 8 4 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 13 Jul 05 21:47 LAG1 6 0 9 2 +- 24 6 +- 28 8 7841 16 Jul 05 21:11 LAG1 12 0 7 4 +- 13 -5 +- 10 3 7841 17 Jul 05 19:45 LAG1 12 0 5 -1 +- 12 4 +- 13 2 Station 7848 (Ajaccio) (position solved, acc. 30 mm) 7848 15 Jul 05 22:48 LAG1 1 0 0 0 +- 0 0 +- 0 0 7848 17 Jul 05 23:37 LAG1 1 0 0 0 +- 0 0 +- 0 0 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 10 Jul 05 00:00 LAG1 7 0 6 -6 +- 58 6 +- 31 2 7941 10 Jul 05 19:01 LAG2 16 0 10 -9 +- 10 -2 +- 8 3 7941 10 Jul 05 22:21 LAG1 12 0 16 5 +- 12 6 +- 6 1 7941 11 Jul 05 17:24 LAG2 13 0 6 10 +- 22 -6 +- 13 2 7941 11 Jul 05 21:07 LAG1 6 0 22 4 +- 23 -11 +- 10 2 7941 12 Jul 05 07:41 LAG1 2 0 17 -39 +- 949 10 +- 450 0 7941 13 Jul 05 06:19 LAG1 5 0 5 0 +- 158 0 +- 70 5 7941 13 Jul 05 22:19 LAG1 2 0 10 -94 +-2932 31 +-1072 0 7941 14 Jul 05 08:18 LAG1 12 0 6 9 +- 30 -6 +- 15 2 7941 14 Jul 05 15:49 LAG2 12 0 12 10 +- 35 0 +- 18 1 7941 14 Jul 05 19:41 LAG2 12 0 8 -7 +- 18 0 +- 18 1 7941 14 Jul 05 20:41 LAG1 10 0 8 13 +- 37 -10 +- 19 1 7941 15 Jul 05 00:11 LAG1 10 0 5 -3 +- 34 4 +- 18 1 7941 15 Jul 05 07:09 LAG1 4 0 6 12 +- 307 -2 +- 123 1 7941 15 Jul 05 13:49 LAG2 13 0 8 -9 +- 26 0 +- 16 1 7941 15 Jul 05 17:57 LAG2 11 0 6 16 +- 39 -9 +- 22 2 7941 15 Jul 05 19:01 LAG1 14 0 2 0 +- 11 -2 +- 12 1 7941 15 Jul 05 22:29 LAG1 8 0 12 2 +- 55 -4 +- 26 2 7941 16 Jul 05 01:59 LAG1 14 0 6 -2 +- 11 3 +- 9 2 7941 16 Jul 05 05:43 LAG1 2 0 12 11 +- 755 -15 +- 499 0 7941 16 Jul 05 07:31 LAG2 2 0 26 12 +- 753 -8 +- 432 0 7941 16 Jul 05 09:07 LAG1 2 0 13 14 +- 88 -2 +- 284 0 7941 16 Jul 05 16:11 LAG2 6 0 3 -1 +- 140 0 +- 68 1 7941 16 Jul 05 21:07 LAG1 2 0 13 -82 +-1765 -36 +- 673 0 7941 17 Jul 05 00:39 LAG1 17 0 10 -6 +- 10 5 +- 7 1 7941 17 Jul 05 04:23 LAG1 2 0 10 -52 +- 441 34 +- 355 0 7941 17 Jul 05 07:47 LAG1 10 0 4 11 +- 42 -4 +- 20 2 7941 17 Jul 05 14:03 LAG2 4 0 2 0 +- 41 -4 +- 73 0 7941 17 Jul 05 19:46 LAG1 10 0 1 0 +- 13 0 +- 8 1 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 12 Jul 05 00:51 LAG1 3 0 24 -21 +- 282 -1 +- 141 0 8834 12 Jul 05 11:05 LAG2 3 0 26 35 +- 208 32 +- 110 0 8834 12 Jul 05 15:15 LAG2 6 0 4 1 +- 43 3 +- 37 3 8834 12 Jul 05 19:08 LAG2 5 0 7 -9 +- 33 -2 +- 27 2 8834 12 Jul 05 19:31 LAG1 9 0 6 -8 +- 17 -5 +- 24 1 8834 12 Jul 05 23:05 LAG1 8 0 18 -16 +- 26 1 +- 16 4 8834 13 Jul 05 02:40 LAG1 3 0 19 -3 +- 63 22 +- 87 1 8834 13 Jul 05 06:01 LAG1 7 0 8 -1 +- 22 4 +- 19 4 8834 13 Jul 05 09:17 LAG2 3 0 15 -68 +- 223 -41 +- 171 0 8834 13 Jul 05 13:08 LAG2 16 0 17 -15 +- 10 -1 +- 7 7 8834 13 Jul 05 17:33 LAG2 12 1 10 -4 +- 22 -4 +- 15 3 8834 13 Jul 05 21:56 LAG1 3 0 22 -20 +- 39 -4 +- 52 1 8834 14 Jul 05 01:17 LAG1 7 0 15 -12 +- 18 4 +- 21 3 8834 14 Jul 05 04:48 LAG1 2 0 15 -6 +- 97 19 +- 207 0 8834 14 Jul 05 08:10 LAG1 6 0 13 -8 +- 41 3 +- 33 3 8834 14 Jul 05 11:45 LAG2 3 0 7 30 +- 233 -16 +- 140 5 8834 14 Jul 05 15:26 LAG2 15 0 9 -5 +- 11 3 +- 6 6 8834 15 Jul 05 09:21 LAG2 11 0 16 -18 +- 13 -2 +- 7 3 8834 15 Jul 05 13:53 LAG2 8 0 6 -1 +- 66 3 +- 34 1 8834 16 Jul 05 11:23 LAG2 8 0 7 -15 +- 113 -7 +- 49 7 8834 17 Jul 05 13:37 LAG2 3 0 17 36 +- 728 22 +- 307 0 8834 17 Jul 05 17:45 LAG2 9 0 11 13 +- 26 10 +- 22 8 8834 17 Jul 05 19:53 LAG1 4 0 3 0 +- 33 6 +- 82 1 8834 17 Jul 05 23:25 LAG1 9 0 3 2 +- 14 0 +- 12 2 -------------------------------------------------------------------------------- Distribution of daytime, nighttime and twilight passes since Jan 1, 2003: -------------------------------------------------------------------------- Station System Period Number of Passes LAGEOS-1 LAGEOS-2 Day/Night/Twil. Day/Night/Twil. Total -------------------------------------------------------------------------- 1824 KIEVLA 050112 - 050404 0/ 9/ 0 0/ 14/ 0 23 1831 LVIL 050117 - 050708 0/ 26/ 0 0/ 20/ 0 46 1864 MD2LAS 050110 - 050717 0/ 55/ 0 0/ 46/ 0 101 1873 SIMLAS 050316 - 050711 0/ 23/ 0 0/ 14/ 0 37 1884 RIGLAS 050104 - 050715 0/ 35/ 0 3/ 42/ 3 83 6405 TIGO 050104 - 050706 7/ 18/ 2 8/ 21/ 2 58 6810 ZIMLAT 050101 - 050718 190/111/ 20 144/ 70/ 17 552 7080 MLRS25 050101 - 050717 36/ 59/ 4 25/ 67/ 8 199 7090 ML0514 050101 - 050717 103/336/ 26 103/226/ 21 815 7105 ML0725 050108 - 050709 1/ 27/ 1 11/ 54/ 5 99 7110 ML0414 050118 - 050716 75/ 96/ 14 34/101/ 9 329 7124 ML0819 050118 - 050622 0/ 29/ 0 0/ 9/ 0 38 7237 CHALAS 050102 - 050713 0/ 57/ 1 0/ 71/ 0 129 7249 BEJLAS 050101 - 050705 0/ 55/ 0 0/ 69/ 0 124 7308 CRLLAS 050111 - 050510 7/ 5/ 1 1/ 10/ 0 24 7355 TROS02 050603 - 050717 0/ 26/ 0 0/ 7/ 0 33 7405 TIGO 050105 - 050705 5/ 26/ 0 3/ 7/ 0 41 7501 ML0616 050117 - 050716 39/105/ 3 39/ 81/ 7 274 7806 METLAS 050301 - 050301 0/ 0/ 0 0/ 1/ 0 1 7810 ZIMLAT 050101 - 050718 168/110/ 18 137/ 64/ 16 513 7811 POLLAS 050111 - 050715 0/ 41/ 0 0/ 39/ 0 80 7824 SPNLAS 050108 - 050713 1/ 83/ 0 0/ 91/ 3 178 7825 STL3 050101 - 050717 188/291/ 30 174/178/ 21 882 7832 SALRO 050101 - 050718 70/156/ 11 96/171/ 17 521 7835 GRASSE 050104 - 050705 0/ 32/ 2 0/ 33/ 3 70 7837 CHILAS 050102 - 050414 0/ 22/ 0 0/ 40/ 1 63 7838 SHOLAS 050106 - 050716 45/ 54/ 1 24/ 76/ 4 204 7839 AUSLAS 050103 - 050718 143/ 94/ 12 78/ 90/ 12 429 7840 RGOLAS 050102 - 050717 165/ 90/ 19 109/ 90/ 20 493 7841 GFZLA3 050105 - 050717 43/ 38/ 10 16/ 61/ 8 176 7848 FTLR06 050515 - 050717 4/ 29/ 0 3/ 10/ 0 46 7941 MLROnn 050102 - 050718 47/ 76/ 4 65/ 92/ 17 301 8834 WLRS01 050109 - 050718 152/102/ 17 121/103/ 18 513 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 050711.0 -27.5 +/- 0.1 408.8 +/- 0.1 -32664.19 +/- 0.01 050712.0 -26.8 +/- 0.1 409.7 +/- 0.1 -32664.03 +/- 0.02 050713.0 -25.5 +/- 0.1 410.6 +/- 0.1 -32664.02 +/- 0.03 050714.0 -24.5 +/- 0.1 411.4 +/- 0.1 -32664.00 +/- 0.04 050715.0 -23.0 +/- 0.1 413.1 +/- 0.1 -32663.91 +/- 0.04 050716.0 -21.8 +/- 0.1 414.0 +/- 0.1 -32663.65 +/- 0.05 050717.0 -20.6 +/- 0.1 415.0 +/- 0.1 -32663.22 +/- 0.05 -------------------------------------------------------------- D. COMMENTS 1. The analysis covered in this report is based on a new set of station coordinates: instead of the solution SSC(DUT)93L05, which was extrapolated over some 10 years beyond the epoch of the latest observations, the current analysis relies on the ITRF2000 solution. Tests performed during the last year show that the rms-of-fit that can be obtained when using ITRF2000 can be reduced to about 2 cm (instead of the 3+ cm which was achieved with the old model, for present-day epochs). Other model modifications are to be expected. We hope to serve the community with this development. 2. As of July 1, 2003, a new computation model and analysis strategy are in use: in terms of geometric modeling, models for ocean loading and atmospheric pressure loading have been turned on. The frequency of the solutions for the Earth Orientation Parameters has been increased to once per day (rather than once per 3 days). As a consequence, the arc length has been changed from 10 days to 8 days. Also, the empirical accelerations acting on the spacecraft are estimated twice per arc (i.e. for 4-day periods). To absorb (unmodeled) geocenter motion, 3 coefficients of the gravity field model are estimated: C(1,0), C(1,1) and S(1,1). Finally, the overall weighting scheme for the individual SLR observations is also modified slightly. 3. As of the same date, provisions for handling the dual-wavelength systems 7405 and 7810 properly have been installed. This is done by introducing dummy station ids 6405 and 6810 for the observations taken on 2nd wavelength. The specific analysis results are easily recognizable because the wavelength has been added to the printout of the station name. 4. As of July 7, 2004, similar provisions for handling the dual-wavelength syste 7941 properly have been installed. This is done by introducing a dummy station id 6941 for the observations taken on 2nd wavelength. From: Ron Noomen ******************************************************************************** |