| Date: | 2005-11-22 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 6386: Delft QL Report November 22, 2005 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2005-11-22 13:15:00 UTC Message No. 6386 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report November 22, 2005 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS November 22, 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 Tue, Nov 22, 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 Tue, Nov 22, 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 ------------------------------------------------------------------------------ 1884 Riga, Latvia 051121 - 051121 1 - 6810 Zimmerwald 846, Switzerland 051118 - 051122 3 3 7090 Yarragadee, Australia 051121 - 051121 1 - 7237 Changchun, China 051120 - 051121 5 6 7249 Beijing, China 051121 - 051121 - 2 7810 Zimmerwald 423, Switzerland 051118 - 051122 3 3 7811 Borowiec, Poland 051121 - 051121 1 1 7824 San Fernando, Spain 051120 - 051121 - 3 7825 Mount Stromlo, Australia 051120 - 051121 4 4 7832 Riyad, Saudi Arabia 051120 - 051122 6 7 7838 Simosato Observatory, Japan 051120 - 051121 2 1 7839 Graz, Austria 051120 - 051121 2 - 7840 Herstmonceux, United Kingdom 051120 - 051122 7 5 7841 Potsdam, Germany 051120 - 051121 2 2 7941 Matera, Italy (MLRO 532) 051120 - 051121 2 2 ------ ------ --- --- TOTAL 051118 - 051122 39 39 ------------------------------------------------------------------------------ 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 Mon, Nov 14, 2005 to Tue, Nov 22, 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 20 20 Number of Passes 202/202 179/179 Number of Normal Points 2235/2224 2126/2113 Weighted RMS of Fit (mm) 17 17 ----------------------------------------------------------------------- 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 16 Nov 05 17:33 LAG2 8 0 57 -41 +- 759 -55 +- 445 10 1864 17 Nov 05 15:53 LAG2 8 0 20 -12 +- 216 19 +- 280 10 1864 17 Nov 05 17:43 LAG1 3 0 24 -46 +- 721 131 +-1833 1 1864 17 Nov 05 19:57 LAG2 11 0 35 -27 +- 181 5 +- 177 21 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 15 Nov 05 20:25 LAG1 15 0 13 -10 +- 81 0 +- 54 7 1884 15 Nov 05 23:39 LAG2 11 0 14 -15 +- 136 1 +- 108 3 1884 16 Nov 05 00:07 LAG1 9 0 42 -40 +- 251 -1 +- 139 2 1884 21 Nov 05 15:41 LAG1 4 0 5 -17 +-1505 -6 +- 733 3 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 15 Nov 05 16:59 LAG1 19 0 22 -12 +- 44 -8 +- 23 3 6810 15 Nov 05 19:33 LAG2 3 0 9 6 +- 255 -38 +- 641 0 6810 17 Nov 05 17:40 LAG1 8 0 7 -3 +- 66 0 +- 29 6 6810 17 Nov 05 19:25 LAG2 5 0 14 11 +- 372 -1 +- 226 1 6810 18 Nov 05 17:33 LAG2 15 0 23 -20 +- 47 4 +- 32 8 6810 18 Nov 05 19:49 LAG1 17 0 10 -7 +- 45 -1 +- 26 6 6810 18 Nov 05 21:30 LAG2 16 0 5 2 +- 45 0 +- 23 4 6810 18 Nov 05 23:16 LAG1 12 0 19 -19 +- 54 0 +- 33 3 6810 19 Nov 05 01:33 LAG2 23 0 8 0 +- 38 3 +- 20 3 6810 19 Nov 05 02:35 LAG1 25 0 11 1 +- 36 -3 +- 16 7 6810 19 Nov 05 14:49 LAG1 18 0 16 -4 +- 43 9 +- 28 4 6810 19 Nov 05 18:24 LAG1 15 0 22 3 +- 47 13 +- 28 3 6810 19 Nov 05 19:33 LAG2 18 0 14 7 +- 56 -5 +- 36 2 6810 19 Nov 05 21:57 LAG1 12 0 30 -19 +- 52 12 +- 27 2 6810 19 Nov 05 23:37 LAG2 19 0 5 1 +- 43 -2 +- 22 3 6810 20 Nov 05 01:16 LAG1 21 0 6 -3 +- 39 1 +- 18 4 6810 20 Nov 05 03:43 LAG2 18 0 7 0 +- 43 -4 +- 25 2 6810 20 Nov 05 05:27 LAG1 8 0 10 -20 +- 373 7 +- 214 6 6810 20 Nov 05 13:35 LAG1 13 0 34 -33 +- 50 9 +- 59 7 6810 20 Nov 05 17:08 LAG1 19 0 11 10 +- 42 1 +- 23 3 6810 20 Nov 05 17:57 LAG2 12 0 21 -20 +- 72 0 +- 50 7 6810 21 Nov 05 06:03 LAG2 16 0 20 -19 +- 55 -1 +- 48 3 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 14 Nov 05 03:36 LAG1 3 0 4 6 +- 206 -1 +- 200 0 7080 14 Nov 05 06:29 LAG2 15 0 13 -2 +- 17 -9 +- 14 4 7080 14 Nov 05 09:55 LAG1 16 0 5 1 +- 16 -2 +- 10 2 7080 14 Nov 05 10:36 LAG2 19 0 19 -3 +- 15 11 +- 9 4 7080 15 Nov 05 02:12 LAG1 10 0 30 14 +- 41 11 +- 26 2 7080 15 Nov 05 04:26 LAG2 16 0 8 6 +- 16 2 +- 14 5 7080 16 Nov 05 07:05 LAG2 9 0 42 -16 +- 82 -16 +- 55 6 7080 16 Nov 05 07:25 LAG1 5 0 13 -11 +- 52 -2 +- 80 8 7080 16 Nov 05 10:51 LAG1 13 0 26 12 +- 20 -19 +- 13 8 7080 16 Nov 05 11:21 LAG2 9 0 35 9 +- 95 12 +- 47 6 7080 17 Nov 05 03:01 LAG1 8 0 22 12 +- 58 7 +- 42 4 7080 17 Nov 05 04:34 LAG2 19 0 9 4 +- 15 1 +- 9 8 7080 17 Nov 05 09:09 LAG2 10 0 19 -19 +- 22 1 +- 31 4 7080 17 Nov 05 09:39 LAG1 7 0 14 -19 +- 56 4 +- 41 3 7080 17 Nov 05 13:09 LAG1 4 0 10 1 +- 40 6 +- 143 10 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 14 Nov 05 05:04 LAG2 7 0 6 18 +- 78 -12 +- 61 4 7090 14 Nov 05 08:07 LAG1 15 0 16 -20 +- 14 8 +- 8 3 7090 14 Nov 05 08:50 LAG2 19 0 18 -12 +- 9 -9 +- 6 4 7090 14 Nov 05 13:09 LAG2 9 0 8 -1 +- 18 -13 +- 36 2 7090 14 Nov 05 20:26 LAG1 11 0 35 -50 +- 21 -11 +- 12 4 7090 14 Nov 05 22:47 LAG2 5 0 42 -42 +- 18 26 +- 53 1 7090 15 Nov 05 10:11 LAG1 17 0 25 -21 +- 10 16 +- 9 3 7090 15 Nov 05 10:57 LAG2 24 0 7 -5 +- 8 3 +- 5 2 7090 15 Nov 05 19:11 LAG1 4 0 3 -28 +- 182 -21 +- 132 0 7090 15 Nov 05 22:55 LAG1 6 0 7 1 +- 22 -9 +- 32 4 7090 16 Nov 05 00:43 LAG2 7 0 16 -23 +- 37 -7 +- 32 5 7090 16 Nov 05 08:43 LAG1 16 0 25 -24 +- 10 -3 +- 7 2 7090 16 Nov 05 09:19 LAG2 15 0 31 -18 +- 12 -12 +- 9 3 7090 16 Nov 05 23:06 LAG2 2 0 27 -55 +- 94 48 +- 145 0 7090 17 Nov 05 07:29 LAG2 6 0 6 -3 +- 25 -4 +- 47 3 7090 17 Nov 05 07:48 LAG1 6 0 19 -8 +- 98 12 +- 45 2 7090 17 Nov 05 11:13 LAG1 6 0 7 -5 +- 28 -2 +- 58 3 7090 17 Nov 05 11:31 LAG2 13 0 1 0 +- 18 0 +- 16 1 7090 17 Nov 05 19:53 LAG1 5 0 14 -4 +- 213 4 +- 97 1 7090 17 Nov 05 23:38 LAG1 10 0 6 4 +- 15 1 +- 15 3 7090 18 Nov 05 09:25 LAG2 7 0 16 -17 +- 52 -24 +- 40 1 7090 18 Nov 05 09:41 LAG1 6 0 24 -24 +- 31 0 +- 39 1 7090 19 Nov 05 08:01 LAG2 5 0 11 20 +- 229 -16 +- 120 4 7090 19 Nov 05 11:31 LAG2 21 0 14 -9 +- 9 -7 +- 8 3 7090 21 Nov 05 09:01 LAG1 15 0 12 -13 +- 11 4 +- 7 3 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 14 Nov 05 10:11 LAG1 7 0 8 -14 +- 33 7 +- 25 2 7105 17 Nov 05 08:55 LAG2 9 0 19 0 +- 129 7 +- 53 2 7105 17 Nov 05 09:13 LAG1 10 0 12 -22 +- 41 -5 +- 20 2 7105 18 Nov 05 08:23 LAG1 9 0 20 6 +- 93 -10 +- 36 2 7105 18 Nov 05 11:09 LAG2 14 0 25 -24 +- 14 1 +- 11 2 7105 19 Nov 05 00:55 LAG2 8 0 17 -6 +- 118 5 +- 55 2 7105 19 Nov 05 03:13 LAG1 5 0 2 -14 +- 117 -8 +- 68 0 7105 19 Nov 05 05:03 LAG2 9 0 11 -14 +- 82 -1 +- 42 0 7105 19 Nov 05 06:25 LAG1 22 0 21 -21 +- 8 1 +- 4 4 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 14 Nov 05 15:07 LAG2 5 0 21 49 +- 177 -15 +- 96 1 7110 15 Nov 05 02:19 LAG1 9 0 27 12 +- 38 8 +- 20 1 7110 15 Nov 05 04:15 LAG2 19 0 12 -5 +- 10 6 +- 7 2 7110 15 Nov 05 05:37 LAG1 3 0 5 -5 +- 25 14 +- 127 1 7110 15 Nov 05 08:27 LAG2 7 0 9 -7 +- 125 0 +- 70 0 7110 15 Nov 05 08:41 LAG1 15 0 11 -10 +- 10 2 +- 8 1 7110 15 Nov 05 12:04 LAG1 12 0 10 9 +- 12 1 +- 6 5 7110 15 Nov 05 12:51 LAG2 4 0 4 19 +- 95 13 +- 72 1 7110 16 Nov 05 04:25 LAG1 4 0 9 25 +- 78 -18 +- 79 0 7110 16 Nov 05 06:25 LAG2 12 0 31 1 +- 34 -18 +- 21 2 7110 16 Nov 05 07:49 LAG1 2 0 23 51 +- 567 -51 +- 390 0 7110 16 Nov 05 10:41 LAG2 7 0 18 5 +- 151 11 +- 71 1 7110 17 Nov 05 06:25 LAG1 5 0 2 -6 +- 50 7 +- 58 0 7110 17 Nov 05 08:45 LAG2 11 0 4 -2 +- 18 0 +- 17 3 7110 17 Nov 05 09:27 LAG1 19 0 16 -16 +- 9 2 +- 5 2 7110 17 Nov 05 12:59 LAG1 17 0 7 -7 +- 10 1 +- 7 2 7110 17 Nov 05 13:37 LAG2 3 0 36 104 +- 980 -27 +- 387 0 7110 18 Nov 05 01:23 LAG1 22 0 12 2 +- 9 -6 +- 4 2 7110 18 Nov 05 02:43 LAG2 16 0 14 -8 +- 10 -4 +- 7 8 7110 18 Nov 05 04:55 LAG1 10 0 14 12 +- 13 -3 +- 12 5 7110 18 Nov 05 06:39 LAG2 15 0 24 0 +- 10 -14 +- 6 2 7110 18 Nov 05 08:11 LAG1 6 0 5 0 +- 21 1 +- 17 5 7110 18 Nov 05 11:59 LAG1 9 0 9 7 +- 68 0 +- 29 7 7110 19 Nov 05 00:07 LAG1 12 0 20 -3 +- 12 -13 +- 8 1 7110 19 Nov 05 00:51 LAG2 11 0 13 5 +- 16 19 +- 19 1 7110 19 Nov 05 03:31 LAG1 12 0 8 8 +- 12 0 +- 7 2 7110 19 Nov 05 04:41 LAG2 13 0 4 -4 +- 12 0 +- 8 2 7110 19 Nov 05 06:57 LAG1 8 0 23 -21 +- 14 8 +- 18 1 7110 19 Nov 05 09:01 LAG2 12 0 21 -20 +- 12 1 +- 6 4 7110 19 Nov 05 10:17 LAG1 18 0 22 -19 +- 10 -4 +- 6 2 7110 19 Nov 05 13:07 LAG2 3 0 16 -41 +- 751 -10 +- 320 1 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 14 Nov 05 09:51 LAG2 10 0 71 72 +- 55 15 +- 77 19 7237 14 Nov 05 10:56 LAG1 15 0 135 139 +- 47 -7 +- 36 6*CHK* 7237 14 Nov 05 13:39 LAG2 10 0 72 60 +- 62 -12 +- 48 13 7237 14 Nov 05 14:13 LAG1 10 0 27 6 +- 48 -11 +- 33 20 7237 14 Nov 05 17:31 LAG1 17 0 48 44 +- 38 6 +- 18 20 7237 14 Nov 05 17:51 LAG2 16 0 44 40 +- 39 -19 +- 24 5 7237 15 Nov 05 09:29 LAG1 16 0 17 -1 +- 38 -10 +- 24 6 7237 15 Nov 05 11:53 LAG2 5 0 17 -18 +- 358 -24 +- 257 5 7237 15 Nov 05 15:58 LAG2 12 0 27 -10 +- 46 -26 +- 44 5 7237 15 Nov 05 16:26 LAG1 10 0 29 -4 +- 60 -14 +- 34 7 7237 15 Nov 05 19:51 LAG1 9 0 38 38 +- 69 1 +- 63 6 7237 15 Nov 05 20:11 LAG2 4 0 43 45 +- 263 2 +- 268 6 7237 16 Nov 05 09:59 LAG2 13 0 14 -7 +- 46 -14 +- 49 6 7237 16 Nov 05 11:49 LAG1 9 0 25 30 +- 77 -12 +- 63 12 7237 16 Nov 05 14:05 LAG2 10 0 18 16 +- 81 -15 +- 44 7 7237 16 Nov 05 15:13 LAG1 4 0 19 20 +- 102 -7 +- 236 4 7237 16 Nov 05 18:24 LAG2 5 0 8 9 +- 111 -10 +- 100 5 7237 16 Nov 05 18:41 LAG1 10 0 26 15 +- 98 5 +- 50 7 7237 17 Nov 05 10:11 LAG1 14 0 23 16 +- 46 -6 +- 26 4 7237 17 Nov 05 13:43 LAG1 5 0 47 62 +- 269 11 +- 193 4 7237 17 Nov 05 16:11 LAG2 9 0 24 14 +- 54 -11 +- 40 3 7237 17 Nov 05 17:01 LAG1 15 0 19 18 +- 39 0 +- 19 7 7237 18 Nov 05 08:59 LAG1 12 0 27 1 +- 48 -15 +- 28 6 7237 18 Nov 05 10:15 LAG2 8 0 24 -3 +- 54 -18 +- 42 5 7237 18 Nov 05 12:29 LAG1 5 0 42 38 +- 101 -4 +- 120 8 7237 18 Nov 05 14:07 LAG2 7 0 33 1 +- 67 -17 +- 35 5 7237 18 Nov 05 15:55 LAG1 6 0 35 34 +- 62 3 +- 109 5 7237 18 Nov 05 18:27 LAG2 12 0 25 12 +- 44 -16 +- 33 6 7237 18 Nov 05 19:21 LAG1 13 0 22 22 +- 47 -1 +- 30 8 7237 19 Nov 05 11:13 LAG1 10 0 16 13 +- 58 -9 +- 50 11 7237 19 Nov 05 12:23 LAG2 10 0 18 -8 +- 52 -22 +- 61 4 7237 19 Nov 05 16:27 LAG2 9 0 28 -2 +- 52 -16 +- 31 7 7237 19 Nov 05 17:59 LAG1 13 0 11 3 +- 47 4 +- 33 8 7237 19 Nov 05 20:37 LAG2 10 0 20 8 +- 49 -16 +- 41 6 7237 20 Nov 05 10:53 LAG2 5 0 19 84 +- 599 -52 +- 340 14 7237 20 Nov 05 13:22 LAG1 7 0 51 48 +- 99 1 +- 64 6 7237 20 Nov 05 14:20 LAG2 12 0 56 23 +- 46 -28 +- 30 7 7237 20 Nov 05 16:31 LAG1 14 0 26 23 +- 40 -4 +- 24 9 7237 20 Nov 05 18:32 LAG2 15 0 33 19 +- 39 -15 +- 23 6 7237 20 Nov 05 19:57 LAG1 12 0 45 40 +- 77 -3 +- 47 7 7237 21 Nov 05 11:47 LAG1 18 0 32 30 +- 36 -3 +- 21 10 7237 21 Nov 05 12:25 LAG2 13 0 41 -8 +- 43 -28 +- 29 6 7237 21 Nov 05 16:57 LAG2 6 0 22 -1 +- 124 -24 +- 148 3 7237 21 Nov 05 18:55 LAG1 10 0 8 -8 +- 99 3 +- 51 6 7237 21 Nov 05 20:39 LAG2 13 0 30 9 +- 43 -16 +- 24 7 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 21 Nov 05 12:23 LAG2 18 0 9 0 +- 37 0 +- 27 9 7249 21 Nov 05 20:51 LAG2 5 0 9 5 +- 126 7 +- 166 9 Station 7358 (Tanegashima) (position solved, acc. 10 mm) 7358 16 Nov 05 08:03 LAG1 11 0 12 -14 +- 15 -3 +- 6 2 7358 18 Nov 05 05:43 LAG1 5 0 11 -9 +- 47 15 +- 66 10 7358 18 Nov 05 08:55 LAG1 11 0 6 5 +- 13 2 +- 6 2 7358 18 Nov 05 10:39 LAG2 3 0 14 320 +- 753 -149 +- 362 0 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 15 Nov 05 16:57 LAG1 18 0 23 -16 +- 43 -8 +- 24 3 7810 15 Nov 05 19:33 LAG2 2 0 4 -9 +- 375 27 +-1605 0 7810 17 Nov 05 17:41 LAG1 5 0 15 -13 +- 101 0 +- 41 5 7810 17 Nov 05 19:25 LAG2 9 0 7 4 +- 61 -1 +- 34 4 7810 18 Nov 05 16:53 LAG1 6 0 28 -17 +- 803 -4 +- 315 5 7810 18 Nov 05 17:39 LAG2 12 0 22 -22 +- 54 5 +- 42 3 7810 18 Nov 05 19:48 LAG1 16 0 13 -12 +- 46 0 +- 27 5 7810 18 Nov 05 21:37 LAG2 14 0 6 -4 +- 54 0 +- 28 3 7810 18 Nov 05 23:16 LAG1 11 0 31 -30 +- 61 0 +- 41 2 7810 19 Nov 05 01:33 LAG2 18 0 8 -6 +- 43 2 +- 24 4 7810 19 Nov 05 02:41 LAG1 17 0 15 -11 +- 44 -4 +- 20 5 7810 19 Nov 05 14:49 LAG1 20 0 29 -24 +- 41 9 +- 24 5 7810 19 Nov 05 18:24 LAG1 15 0 27 -13 +- 47 14 +- 28 3 7810 19 Nov 05 19:33 LAG2 19 0 9 -10 +- 51 -6 +- 33 3 7810 19 Nov 05 21:57 LAG1 12 0 44 -35 +- 53 12 +- 28 3 7810 19 Nov 05 23:59 LAG2 8 0 18 -10 +- 85 -6 +- 51 3 7810 20 Nov 05 01:17 LAG1 23 0 18 -18 +- 38 1 +- 17 2 7810 20 Nov 05 03:55 LAG2 19 0 19 -11 +- 46 -6 +- 27 3 7810 20 Nov 05 13:35 LAG1 14 0 48 -46 +- 50 7 +- 64 2 7810 20 Nov 05 17:15 LAG1 8 0 5 -1 +- 72 2 +- 45 3 7810 20 Nov 05 18:03 LAG2 10 0 33 -40 +- 99 8 +- 85 7 7810 21 Nov 05 06:05 LAG2 12 0 30 -26 +- 62 -6 +- 70 3 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 21 Nov 05 19:22 LAG1 10 0 27 23 +- 60 -1 +- 54 14 7811 21 Nov 05 20:05 LAG2 6 0 38 5 +- 161 -27 +- 145 14 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 14 Nov 05 07:19 LAG2 5 0 80 93 +- 107 21 +- 149 7 7824 14 Nov 05 20:59 LAG2 7 0 75 93 +- 152 13 +- 105 4 7824 15 Nov 05 23:11 LAG2 16 0 62 60 +- 30 -11 +- 28 4 7824 15 Nov 05 23:59 LAG1 13 0 36 36 +- 34 -2 +- 33 5 7824 16 Nov 05 03:25 LAG1 4 0 81 74 +- 225 -5 +- 175 1 7824 16 Nov 05 03:39 LAG2 5 0 54 61 +- 83 -16 +- 146 1 7824 16 Nov 05 19:31 LAG1 7 0 72 71 +- 84 1 +- 73 2 7824 16 Nov 05 21:07 LAG2 5 0 56 118 +- 611 29 +- 290 0 7824 17 Nov 05 01:25 LAG2 4 0 46 64 +- 455 12 +- 308 2 7824 17 Nov 05 21:27 LAG1 6 0 45 45 +- 77 0 +- 105 5 7824 17 Nov 05 23:39 LAG2 5 0 68 70 +- 65 -6 +- 124 3 7824 18 Nov 05 00:47 LAG1 6 0 49 55 +- 73 12 +- 107 3 7824 18 Nov 05 21:27 LAG2 17 0 75 74 +- 29 0 +- 22 7 7824 19 Nov 05 01:47 LAG2 9 0 59 60 +- 41 1 +- 63 4 7824 19 Nov 05 02:47 LAG1 11 0 68 70 +- 44 3 +- 34 3 7824 19 Nov 05 19:59 LAG2 3 0 67 83 +- 699 -10 +- 452 1 7824 20 Nov 05 21:45 LAG2 12 0 74 74 +- 35 -9 +- 36 6 7824 21 Nov 05 20:01 LAG2 4 0 75 78 +- 70 -15 +- 213 2 7824 21 Nov 05 23:48 LAG2 2 0 38 43 +-4478 2 +-2195 0 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 14 Nov 05 00:45 LAG2 2 0 3 -87 +- 882 -54 +- 532 0 7825 14 Nov 05 01:11 LAG1 5 0 8 2 +- 19 18 +- 53 5 7825 14 Nov 05 04:25 LAG1 14 0 13 -2 +- 11 -8 +- 7 3 7825 14 Nov 05 04:59 LAG2 24 0 8 6 +- 8 -3 +- 6 3 7825 14 Nov 05 08:01 LAG1 11 0 6 3 +- 12 -1 +- 16 5 7825 14 Nov 05 08:57 LAG2 24 0 6 3 +- 8 1 +- 6 4 7825 14 Nov 05 16:50 LAG1 7 0 7 0 +- 30 -4 +- 36 5 7825 15 Nov 05 03:19 LAG1 6 0 22 14 +- 33 8 +- 31 2 7825 15 Nov 05 03:33 LAG2 5 0 14 -106 +- 240 65 +- 135 5 7825 15 Nov 05 06:29 LAG1 3 0 21 49 +- 555 30 +- 238 0 7825 15 Nov 05 07:17 LAG2 17 0 19 3 +- 11 13 +- 9 4 7825 15 Nov 05 18:51 LAG1 18 0 9 0 +- 10 -1 +- 4 8 7825 15 Nov 05 20:53 LAG2 9 0 15 11 +- 35 -2 +- 26 6 7825 15 Nov 05 22:40 LAG1 10 1 5 4 +- 29 -2 +- 22 4 7825 16 Nov 05 05:05 LAG1 6 0 14 -37 +- 125 -21 +- 53 1 7825 16 Nov 05 05:17 LAG2 9 1 20 -4 +- 31 -23 +- 30 2 7825 16 Nov 05 09:13 LAG2 20 0 7 4 +- 9 -3 +- 8 5 7825 16 Nov 05 22:52 LAG2 26 0 13 1 +- 8 5 +- 4 8 7825 17 Nov 05 03:07 LAG2 12 0 9 -6 +- 12 -4 +- 9 7 7825 17 Nov 05 03:58 LAG1 12 0 11 -16 +- 17 7 +- 11 2 7825 17 Nov 05 16:34 LAG1 3 0 39 -17 +- 135 68 +- 165 2 7825 17 Nov 05 19:45 LAG1 12 0 31 -16 +- 15 12 +- 10 3 7825 17 Nov 05 21:05 LAG2 7 0 5 -10 +- 39 -6 +- 26 2 7825 17 Nov 05 23:40 LAG1 1 0 0 0 +- 0 0 +- 0 0 7825 18 Nov 05 01:07 LAG2 10 2 15 0 +- 15 -8 +- 8 3 7825 18 Nov 05 02:32 LAG1 16 1 19 9 +- 11 9 +- 9 7 7825 18 Nov 05 05:35 LAG2 14 0 13 -2 +- 14 -6 +- 8 3 7825 18 Nov 05 05:51 LAG1 15 1 8 -3 +- 11 1 +- 5 7 7825 18 Nov 05 09:29 LAG2 12 0 4 -3 +- 16 -4 +- 20 3 7825 18 Nov 05 22:03 LAG1 13 0 22 -23 +- 14 2 +- 11 1 7825 18 Nov 05 23:05 LAG2 15 0 13 -10 +- 10 2 +- 6 7 7825 19 Nov 05 03:24 LAG2 21 0 9 -8 +- 9 4 +- 7 4 7825 19 Nov 05 04:45 LAG1 12 0 13 -16 +- 14 5 +- 10 1 7825 19 Nov 05 08:23 LAG1 6 0 20 21 +- 20 -5 +- 51 0 7825 20 Nov 05 01:23 LAG2 17 4 14 -5 +- 11 0 +- 7 12 7825 20 Nov 05 03:15 LAG1 17 0 12 6 +- 10 5 +- 7 7 7825 20 Nov 05 05:57 LAG2 8 0 6 1 +- 26 -2 +- 18 6 7825 20 Nov 05 06:44 LAG1 7 0 23 29 +- 58 30 +- 35 3 7825 21 Nov 05 01:59 LAG1 14 0 8 -3 +- 11 -6 +- 10 3 7825 21 Nov 05 03:39 LAG2 16 0 1369 -563 +- 10 575 +- 7 1023*CHK* 7825 21 Nov 05 05:23 LAG1 18 0 6 2 +- 9 0 +- 5 5 7825 21 Nov 05 07:53 LAG2 21 0 9 9 +- 9 -4 +- 7 2 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 14 Nov 05 14:47 LAG1 3 0 4 -84 +- 862 -34 +- 349 0 7832 14 Nov 05 17:31 LAG2 3 0 3 -5 +- 249 8 +- 256 1 7832 14 Nov 05 21:37 LAG1 7 0 22 -24 +- 30 9 +- 50 1 7832 16 Nov 05 12:31 LAG1 3 0 7 -24 +- 448 11 +- 289 1 7832 16 Nov 05 15:37 LAG1 2 0 22 -115 +-1344 -66 +- 645 0 7832 16 Nov 05 17:42 LAG2 6 0 16 9 +- 73 6 +- 63 2 7832 18 Nov 05 22:59 LAG1 12 0 10 -9 +- 19 2 +- 13 3 7832 19 Nov 05 02:05 LAG2 10 0 3 0 +- 51 -1 +- 31 2 7832 19 Nov 05 02:37 LAG1 6 0 24 24 +- 27 6 +- 60 3 7832 19 Nov 05 15:03 LAG1 10 0 6 -2 +- 34 0 +- 24 5 7832 19 Nov 05 15:33 LAG2 6 0 9 5 +- 314 6 +- 144 3 7832 20 Nov 05 01:07 LAG1 10 0 4 3 +- 22 2 +- 17 2 7832 20 Nov 05 04:19 LAG2 7 0 11 -15 +- 42 -12 +- 58 5 7832 20 Nov 05 13:37 LAG1 6 0 5 -1 +- 221 -2 +- 91 1 7832 20 Nov 05 13:49 LAG2 7 0 8 -9 +- 93 -1 +- 83 1 7832 20 Nov 05 18:05 LAG2 9 0 9 -11 +- 30 12 +- 37 3 7832 20 Nov 05 22:31 LAG2 6 0 11 -16 +- 63 12 +- 91 6 7832 20 Nov 05 23:41 LAG1 11 0 13 -2 +- 32 -8 +- 20 6 7832 21 Nov 05 02:15 LAG2 9 0 8 -9 +- 100 0 +- 50 2 7832 21 Nov 05 12:34 LAG1 4 1 5 5 +- 46 -10 +- 139 1 7832 21 Nov 05 15:49 LAG2 7 0 10 -59 +- 182 -26 +- 92 2 7832 21 Nov 05 16:06 LAG1 6 0 6 11 +- 63 -12 +- 56 1 7832 21 Nov 05 20:35 LAG2 5 0 4 -27 +- 200 23 +- 163 2 7832 21 Nov 05 22:24 LAG1 11 0 14 12 +- 23 0 +- 21 7 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 14 Nov 05 09:35 LAG2 18 0 39 44 +- 26 11 +- 19 6 7838 14 Nov 05 11:01 LAG1 8 0 11 10 +- 42 -14 +- 45 1 7838 14 Nov 05 17:27 LAG1 15 0 25 25 +- 28 13 +- 18 6 7838 14 Nov 05 18:11 LAG2 7 0 26 26 +- 37 5 +- 58 4 7838 15 Nov 05 06:03 LAG1 13 0 20 15 +- 28 9 +- 29 2 7838 15 Nov 05 09:24 LAG1 21 0 24 23 +- 20 -3 +- 11 3 7838 15 Nov 05 11:43 LAG2 24 0 43 25 +- 19 21 +- 12 6 7838 15 Nov 05 15:58 LAG2 15 0 21 20 +- 25 9 +- 20 7 7838 16 Nov 05 08:34 LAG1 4 0 28 9 +- 390 -15 +- 163 3 7838 16 Nov 05 09:59 LAG2 18 0 31 27 +- 23 6 +- 18 2 7838 16 Nov 05 11:41 LAG1 9 0 44 37 +- 32 -24 +- 45 9 7838 16 Nov 05 13:56 LAG2 23 0 40 32 +- 20 16 +- 14 4 7838 17 Nov 05 10:31 LAG1 10 0 22 31 +- 56 -9 +- 38 4 7838 17 Nov 05 11:55 LAG2 22 0 48 43 +- 21 23 +- 14 5 7838 18 Nov 05 08:49 LAG1 18 0 47 13 +- 22 -7 +- 12 42 7838 18 Nov 05 09:59 LAG2 22 0 45 44 +- 21 0 +- 13 8 7838 18 Nov 05 14:13 LAG2 10 0 34 50 +- 49 22 +- 45 5 7838 19 Nov 05 12:07 LAG2 17 0 15 21 +- 36 6 +- 23 4 7838 19 Nov 05 16:29 LAG2 17 0 42 42 +- 24 16 +- 18 7 7838 19 Nov 05 17:39 LAG1 15 0 41 36 +- 25 12 +- 12 5 7838 20 Nov 05 18:42 LAG2 17 0 34 26 +- 23 7 +- 13 10 7838 20 Nov 05 20:09 LAG1 10 0 25 21 +- 54 3 +- 43 5 7838 21 Nov 05 08:21 LAG1 20 0 34 29 +- 21 -11 +- 11 6 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 15 Nov 05 13:19 LAG1 11 0 9 4 +- 14 -7 +- 17 1 7839 15 Nov 05 16:53 LAG1 16 0 17 -7 +- 10 -6 +- 4 2 7839 15 Nov 05 19:13 LAG2 16 0 20 1 +- 10 -11 +- 5 1 7839 15 Nov 05 20:23 LAG1 16 0 16 -16 +- 10 0 +- 5 1 7839 15 Nov 05 23:11 LAG2 21 0 14 -5 +- 9 -7 +- 5 3 7839 15 Nov 05 23:45 LAG1 15 0 17 -10 +- 10 -8 +- 6 1 7839 16 Nov 05 04:05 LAG2 2 0 18 259 +-2972 -111 +-1194 0 7839 16 Nov 05 15:51 LAG1 13 0 8 -3 +- 28 -2 +- 14 1 7839 16 Nov 05 17:25 LAG2 6 0 9 -1 +- 17 6 +- 11 1 7839 16 Nov 05 19:11 LAG1 3 0 28 -25 +- 178 2 +- 138 0 7839 17 Nov 05 14:05 LAG1 16 0 7 -1 +- 10 4 +- 6 2 7839 17 Nov 05 17:43 LAG1 14 0 6 -6 +- 11 0 +- 5 1 7839 17 Nov 05 21:05 LAG1 9 0 20 -8 +- 30 6 +- 16 2 7839 17 Nov 05 23:39 LAG2 17 0 3 0 +- 10 -2 +- 6 0 7839 18 Nov 05 00:27 LAG1 24 0 5 1 +- 8 2 +- 4 1 7839 18 Nov 05 03:27 LAG2 23 0 8 -5 +- 9 -4 +- 5 3 7839 18 Nov 05 04:03 LAG1 22 0 11 -9 +- 9 -3 +- 5 3 7839 20 Nov 05 17:13 LAG1 9 0 5 4 +- 14 -1 +- 8 1 7839 21 Nov 05 04:07 LAG1 2 0 18 -23 +- 943 2 +- 457 0 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 14 Nov 05 02:31 LAG1 20 0 22 -9 +- 14 -10 +- 7 2 7840 14 Nov 05 02:59 LAG2 22 0 8 -8 +- 14 0 +- 7 2 7840 14 Nov 05 06:25 LAG1 6 0 20 -21 +- 28 -5 +- 75 1 7840 14 Nov 05 07:15 LAG2 7 0 12 -12 +- 26 0 +- 54 2 7840 14 Nov 05 18:21 LAG1 19 0 26 -5 +- 15 14 +- 8 2 7840 14 Nov 05 21:01 LAG2 16 0 22 4 +- 16 15 +- 11 4 7840 14 Nov 05 21:53 LAG1 12 0 22 -12 +- 19 14 +- 12 2 7840 15 Nov 05 17:05 LAG1 12 0 18 14 +- 25 -14 +- 15 3 7840 15 Nov 05 19:15 LAG2 14 0 15 12 +- 21 -3 +- 19 2 7840 16 Nov 05 15:45 LAG1 7 0 9 9 +- 28 -9 +- 44 4 7840 16 Nov 05 19:14 LAG1 10 0 3 -3 +- 29 2 +- 13 1 7840 16 Nov 05 21:17 LAG2 17 0 18 13 +- 16 10 +- 11 4 7840 16 Nov 05 22:34 LAG1 10 0 15 -15 +- 32 0 +- 23 2 7840 17 Nov 05 01:19 LAG2 24 0 16 4 +- 13 8 +- 7 5 7840 17 Nov 05 02:07 LAG1 17 0 6 0 +- 17 -3 +- 10 2 7840 17 Nov 05 05:23 LAG2 16 0 6 -1 +- 16 3 +- 10 3 7840 17 Nov 05 05:41 LAG1 12 0 11 -8 +- 19 -4 +- 17 3 7840 17 Nov 05 17:45 LAG1 18 0 10 9 +- 15 -2 +- 8 3 7840 17 Nov 05 19:37 LAG2 15 0 13 13 +- 20 0 +- 15 2 7840 17 Nov 05 21:15 LAG1 7 0 6 -5 +- 25 0 +- 14 3 7840 17 Nov 05 23:35 LAG2 15 0 10 10 +- 18 -3 +- 12 4 7840 18 Nov 05 00:45 LAG1 15 0 8 8 +- 17 0 +- 11 2 7840 18 Nov 05 03:31 LAG2 18 0 12 -2 +- 15 -6 +- 9 2 7840 18 Nov 05 04:11 LAG1 16 0 7 -5 +- 16 1 +- 9 4 7840 18 Nov 05 16:21 LAG1 19 0 20 5 +- 15 -12 +- 9 4 7840 18 Nov 05 17:47 LAG2 4 0 6 -6 +- 37 5 +- 42 2 7840 18 Nov 05 19:53 LAG1 18 0 12 7 +- 16 -5 +- 9 5 7840 18 Nov 05 21:27 LAG2 16 0 13 1 +- 16 6 +- 8 4 7840 18 Nov 05 23:19 LAG1 13 0 9 -8 +- 18 0 +- 10 3 7840 19 Nov 05 01:31 LAG2 26 0 11 3 +- 12 5 +- 7 4 7840 19 Nov 05 02:45 LAG1 16 0 5 3 +- 17 0 +- 9 4 7840 19 Nov 05 05:45 LAG2 15 0 11 -9 +- 18 -2 +- 16 1 7840 19 Nov 05 15:05 LAG1 10 0 10 -8 +- 20 6 +- 29 2 7840 19 Nov 05 18:29 LAG1 13 0 19 4 +- 18 8 +- 8 6 7840 19 Nov 05 19:39 LAG2 15 0 6 6 +- 19 1 +- 14 2 7840 19 Nov 05 22:03 LAG1 6 0 18 -14 +- 28 8 +- 13 0 7840 19 Nov 05 23:39 LAG2 15 0 4 2 +- 18 0 +- 10 3 7840 20 Nov 05 01:27 LAG1 19 0 3 2 +- 15 0 +- 8 2 7840 20 Nov 05 03:43 LAG2 22 0 10 -4 +- 14 -5 +- 8 1 7840 20 Nov 05 05:03 LAG1 17 0 16 -16 +- 16 2 +- 11 3 7840 20 Nov 05 17:09 LAG1 15 0 10 9 +- 19 0 +- 12 3 7840 20 Nov 05 17:55 LAG2 15 0 20 -20 +- 17 1 +- 19 2 7840 20 Nov 05 20:51 LAG1 14 0 8 9 +- 22 -4 +- 14 3 7840 20 Nov 05 21:49 LAG2 13 0 4 0 +- 18 2 +- 14 3 7840 21 Nov 05 00:13 LAG1 7 0 13 9 +- 25 -5 +- 14 4 7840 21 Nov 05 01:51 LAG2 19 0 2 2 +- 16 0 +- 9 1 7840 21 Nov 05 03:37 LAG1 18 0 12 -7 +- 15 -5 +- 8 2 7840 21 Nov 05 15:53 LAG1 8 0 14 16 +- 28 4 +- 32 1 7840 21 Nov 05 19:42 LAG1 5 0 13 17 +- 84 -2 +- 42 1 7840 21 Nov 05 20:01 LAG2 15 0 8 10 +- 21 -1 +- 13 1 7840 21 Nov 05 22:47 LAG1 11 0 7 -4 +- 21 3 +- 10 3 7840 21 Nov 05 23:53 LAG2 4 0 4 8 +- 541 5 +- 247 1 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 19 Nov 05 18:33 LAG1 18 0 7 -2 +- 10 4 +- 6 1 7841 20 Nov 05 18:04 LAG2 13 0 8 0 +- 14 6 +- 13 6 7841 21 Nov 05 15:43 LAG1 3 0 14 -53 +- 607 -28 +- 264 6 7841 21 Nov 05 19:17 LAG1 8 0 5 -4 +- 32 -1 +- 19 4 7841 21 Nov 05 19:59 LAG2 7 0 8 -19 +- 60 -11 +- 39 7 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 14 Nov 05 14:53 LAG1 11 0 9 7 +- 13 -4 +- 8 3 7941 16 Nov 05 21:19 LAG2 17 0 11 -6 +- 10 5 +- 6 3 7941 16 Nov 05 22:33 LAG1 2 0 42 -47 +- 947 -3 +- 708 0 7941 17 Nov 05 05:47 LAG2 6 0 15 14 +- 17 -2 +- 40 4 7941 17 Nov 05 14:21 LAG1 7 0 9 5 +- 18 -5 +- 10 4 7941 17 Nov 05 19:41 LAG2 11 0 3 2 +- 16 -1 +- 11 3 7941 20 Nov 05 22:09 LAG2 7 0 2 0 +- 25 2 +- 28 1 7941 20 Nov 05 23:55 LAG1 15 0 3 2 +- 12 0 +- 6 2 7941 21 Nov 05 16:09 LAG2 2 0 15 -32 +- 301 -31 +- 563 0 7941 21 Nov 05 19:17 LAG1 10 0 7 7 +- 25 8 +- 17 2 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 15 Nov 05 17:02 LAG1 1 0 3 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 051005 - 051102 0/ 9/ 0 0/ 3/ 0 12 1831 LVIL 050703 - 051103 0/ 68/ 0 0/ 15/ 0 83 1864 MD2LAS 050701 - 051117 0/106/ 0 0/ 35/ 0 141 1873 SIMLAS 050701 - 051113 0/ 52/ 0 0/ 9/ 0 61 1884 RIGLAS 050703 - 051121 0/ 90/ 0 0/ 19/ 0 109 1893 CRMLAS 050723 - 051013 0/ 17/ 0 0/ 0/ 0 17 6405 TIGO 050705 - 051109 46/ 10/ 3 39/ 32/ 3 133 6810 ZIMLAT 050701 - 051122 97/190/ 19 142/ 98/ 15 561 7080 MLRS25 050701 - 051117 7/ 59/ 1 9/ 38/ 3 117 7090 ML0514 050701 - 051121 123/128/ 29 85/207/ 16 588 7105 ML0725 050704 - 051119 13/ 84/ 10 21/ 45/ 7 180 7110 ML0414 050701 - 051119 43/161/ 25 50/ 72/ 7 358 7124 ML0819 050818 - 051102 1/ 14/ 2 1/ 32/ 1 51 7130 TL04** 050803 - 051103 8/ 26/ 1 12/ 10/ 2 59 7237 CHALAS 050706 - 051121 0/116/ 2 0/ 68/ 0 186 7249 BEJLAS 050703 - 051121 0/ 57/ 0 0/ 20/ 0 77 7355 TROS02 050701 - 050906 0/ 24/ 0 0/ 0/ 0 24 7358 GMSL 050802 - 051118 4/ 16/ 0 2/ 8/ 0 30 7405 TIGO 050705 - 051107 2/ 5/ 0 0/ 9/ 0 16 7501 ML0616 050701 - 051023 17/ 41/ 4 7/ 63/ 2 134 7810 ZIMLAT 050701 - 051122 96/188/ 19 143/ 96/ 17 559 7811 POLLAS 050704 - 051121 0/ 85/ 0 0/ 20/ 0 105 7824 SPNLAS 050701 - 051121 10/132/ 8 10/ 59/ 6 225 7825 STL3 050702 - 051121 250/ 99/ 19 112/166/ 20 666 7832 SALRO 050702 - 051122 75/182/ 22 94/114/ 14 501 7835 GRASSE 050701 - 050705 0/ 3/ 0 0/ 2/ 0 5 7838 SHOLAS 050714 - 051121 12/ 77/ 4 19/ 46/ 3 161 7839 AUSLAS 050702 - 051121 52/123/ 21 95/ 47/ 4 342 7840 RGOLAS 050702 - 051122 68/179/ 24 109/ 62/ 8 450 7841 GFZLA3 050713 - 051121 8/ 78/ 7 7/ 24/ 2 126 7848 FTLR06 050515 - 051027 6/ 48/ 2 5/ 22/ 4 87 7941 MLROnn 050701 - 051121 44/126/ 11 64/ 48/ 9 302 8834 WLRS01 050702 - 051115 75/157/ 26 110/ 65/ 10 443 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 051115.0 69.0 +/- 0.1 392.9 +/- 0.1 -32692.19 +/- 0.01 051116.0 69.5 +/- 0.1 393.1 +/- 0.1 -32692.94 +/- 0.02 051117.0 69.4 +/- 0.1 393.5 +/- 0.1 -32693.49 +/- 0.03 051118.0 69.3 +/- 0.1 393.3 +/- 0.1 -32693.73 +/- 0.04 051119.0 69.0 +/- 0.1 392.7 +/- 0.1 -32693.99 +/- 0.04 051120.0 68.2 +/- 0.1 392.4 +/- 0.1 -32694.22 +/- 0.05 051121.0 67.3 +/- 0.1 391.9 +/- 0.1 -32694.59 +/- 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 ******************************************************************************** |