| Date: | 2005-12-16 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 6520: Delft QL Report December 16, 2005 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2005-12-16 13:15:00 UTC Message No. 6520 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report December 16, 2005 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS December 16, 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 Fri, Dec 16, 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 Fri, Dec 16, 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) 051212 - 051215 2 3 6810 Zimmerwald 846, Switzerland 051214 - 051215 5 4 7090 Yarragadee, Australia 051215 - 051215 3 2 7105 Greenbelt, Maryland 051214 - 051214 1 1 7237 Changchun, China 051214 - 051215 7 5 7501 Hartebeesthoek, SA (MOB-6) 051214 - 051214 1 - 7810 Zimmerwald 423, Switzerland 051214 - 051215 5 3 7824 San Fernando, Spain 051215 - 051215 - 2 7825 Mount Stromlo, Australia 051214 - 051215 5 4 7832 Riyad, Saudi Arabia 051214 - 051214 2 2 7838 Simosato Observatory, Japan 051214 - 051215 1 3 7840 Herstmonceux, United Kingdom 051214 - 051215 4 3 7941 Matera, Italy (MLRO 532) 051214 - 051214 1 1 ------ ------ --- --- TOTAL 051212 - 051215 37 33 ------------------------------------------------------------------------------ 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 Thu, Dec 8, 2005 to Fri, Dec 16, 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 204/204 184/184 Number of Normal Points 2265/2242 2112/2106 Weighted RMS of Fit (mm) 14 14 ----------------------------------------------------------------------- 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 8 Dec 05 13:37 LAG1 7 0 65 -62 +- 228 3 +- 133 12 1864 8 Dec 05 16:03 LAG2 11 0 79 -70 +- 190 10 +- 138 21 1864 8 Dec 05 17:09 LAG1 3 0 56 -26 +-1130 51 +-1918 0 1864 8 Dec 05 20:15 LAG2 7 0 56 -25 +- 242 21 +- 128 11 1864 8 Dec 05 20:31 LAG1 4 0 36 -7 +- 640 41 +- 924 10 1864 9 Dec 05 15:49 LAG1 6 0 60 -57 +- 254 6 +- 317 9 1864 10 Dec 05 14:27 LAG1 3 0 13 -9 +-4133 -7 +-2563 12 1864 10 Dec 05 16:19 LAG2 8 0 63 -56 +- 396 0 +- 284 28 1864 10 Dec 05 17:53 LAG1 4 0 52 -42 +- 704 13 +-1103 15 1864 12 Dec 05 15:17 LAG1 6 0 57 -60 +- 270 -19 +- 379 12 1864 12 Dec 05 16:35 LAG2 6 0 63 -8 +-1107 34 +- 697 7 1864 14 Dec 05 16:06 LAG1 4 0 65 -1 +- 301 -188 +- 964 29 1864 14 Dec 05 16:49 LAG2 5 0 50 -31 +- 320 15 +- 253 20 1864 15 Dec 05 15:03 LAG2 8 0 43 -43 +- 259 7 +- 211 18 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 10 Dec 05 02:41 LAG1 2 0 108 156 +-3339 -39 +-2715 0 1873 13 Dec 05 18:42 LAG2 1 0 151 0 +- 0 0 +- 0 0 1873 13 Dec 05 21:09 LAG1 1 0 141 0 +- 0 0 +- 0 0 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 12 Dec 05 15:13 LAG1 19 0 13 7 +- 68 -4 +- 39 7 1884 12 Dec 05 16:39 LAG2 11 0 6 6 +- 125 -6 +- 115 4 1884 12 Dec 05 18:51 LAG1 15 0 11 -9 +- 80 4 +- 53 4 1884 12 Dec 05 20:31 LAG2 16 0 8 8 +- 77 -2 +- 60 4 1884 13 Dec 05 14:04 LAG1 9 0 30 16 +- 140 12 +- 108 5 1884 13 Dec 05 17:23 LAG1 19 0 32 2 +- 68 17 +- 39 10 1884 13 Dec 05 20:53 LAG1 18 0 29 12 +- 70 14 +- 42 9 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 10 Dec 05 14:37 LAG1 18 0 17 14 +- 44 -2 +- 29 11 6810 10 Dec 05 15:53 LAG2 5 0 17 37 +-1216 9 +- 567 3 6810 10 Dec 05 19:55 LAG2 21 0 6 -6 +- 40 0 +- 21 2 6810 10 Dec 05 21:31 LAG1 2 0 20 92 +-4645 51 +-2122 0 6810 11 Dec 05 00:02 LAG2 25 0 7 5 +- 36 -1 +- 18 4 6810 11 Dec 05 00:57 LAG1 12 0 15 2 +- 52 -7 +- 26 3 6810 11 Dec 05 04:12 LAG2 12 0 6 0 +- 55 1 +- 49 5 6810 11 Dec 05 04:44 LAG1 8 0 8 5 +- 84 -7 +- 73 5 6810 11 Dec 05 13:07 LAG1 19 0 20 17 +- 42 6 +- 32 4 6810 11 Dec 05 14:13 LAG2 13 0 10 9 +- 67 -1 +- 81 2 6810 11 Dec 05 16:35 LAG1 15 0 38 0 +- 48 15 +- 19 5 6810 11 Dec 05 17:57 LAG2 22 0 5 3 +- 39 0 +- 21 3 6810 11 Dec 05 20:09 LAG1 18 0 26 -14 +- 43 12 +- 25 2 6810 11 Dec 05 23:33 LAG1 9 0 18 2 +- 207 9 +- 101 5 6810 12 Dec 05 15:56 LAG1 5 0 19 30 +-1402 -17 +- 511 5 6810 12 Dec 05 16:05 LAG2 25 0 15 -4 +- 36 -8 +- 21 5 6810 12 Dec 05 18:47 LAG1 17 0 20 -19 +- 45 2 +- 23 4 6810 12 Dec 05 20:15 LAG2 20 0 13 -5 +- 41 -7 +- 25 3 6810 12 Dec 05 22:18 LAG1 13 0 21 -16 +- 53 -5 +- 31 3 6810 13 Dec 05 13:51 LAG1 5 0 20 2 +- 253 12 +- 139 2 6810 14 Dec 05 19:35 LAG1 17 0 24 -19 +- 44 7 +- 25 2 6810 14 Dec 05 20:23 LAG2 20 0 19 -10 +- 40 -9 +- 23 3 6810 14 Dec 05 23:00 LAG1 22 0 22 -22 +- 40 0 +- 21 3 6810 15 Dec 05 00:29 LAG2 24 0 17 -2 +- 37 -8 +- 19 4 6810 15 Dec 05 02:29 LAG1 21 0 18 -7 +- 40 -8 +- 21 2 6810 15 Dec 05 14:51 LAG1 11 0 20 -19 +- 55 0 +- 32 4 6810 15 Dec 05 14:59 LAG2 4 0 28 -30 +- 210 2 +- 232 4 6810 15 Dec 05 18:44 LAG1 4 0 8 -32 +- 548 13 +- 294 1 6810 15 Dec 05 18:47 LAG2 2 0 24 -70 +-1616 -51 +-1798 0 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 8 Dec 05 05:13 LAG2 6 0 16 -9 +- 28 -6 +- 20 12 7080 8 Dec 05 09:01 LAG1 13 0 3 -2 +- 18 0 +- 14 2 7080 8 Dec 05 09:44 LAG2 10 0 5 1 +- 54 1 +- 31 4 7080 9 Dec 05 03:37 LAG2 7 0 19 0 +- 118 -11 +- 75 2 7080 9 Dec 05 07:45 LAG2 7 0 8 -11 +- 41 4 +- 53 2 7080 9 Dec 05 07:57 LAG1 4 0 16 11 +- 164 -19 +- 112 1 7080 9 Dec 05 11:13 LAG1 10 0 11 3 +- 20 -12 +- 24 3 7080 9 Dec 05 11:35 LAG2 12 0 17 16 +- 19 8 +- 23 6 7080 10 Dec 05 05:39 LAG2 16 0 17 -10 +- 22 -7 +- 18 4 7080 10 Dec 05 06:27 LAG1 4 0 16 -17 +- 59 -1 +- 125 3 7080 10 Dec 05 09:35 LAG2 9 0 7 4 +- 36 5 +- 24 5 7080 10 Dec 05 09:57 LAG1 10 0 14 11 +- 33 -15 +- 23 2 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 8 Dec 05 00:20 LAG1 11 0 8 -6 +- 13 -6 +- 14 3 7090 8 Dec 05 03:30 LAG2 13 0 6 -3 +- 11 2 +- 15 4 7090 8 Dec 05 06:55 LAG1 15 0 15 -6 +- 10 7 +- 5 3 7090 8 Dec 05 07:35 LAG2 20 0 12 -12 +- 9 -2 +- 7 1 7090 8 Dec 05 19:35 LAG1 21 0 14 -15 +- 10 3 +- 5 4 7090 8 Dec 05 21:19 LAG2 12 0 6 -2 +- 12 3 +- 12 3 7090 8 Dec 05 23:01 LAG1 8 0 9 7 +- 16 0 +- 12 4 7090 9 Dec 05 01:31 LAG2 16 0 6 1 +- 12 -4 +- 12 5 7090 9 Dec 05 05:45 LAG2 15 0 12 -8 +- 11 -3 +- 6 3 7090 9 Dec 05 06:03 LAG1 7 0 4 -17 +- 102 8 +- 44 2 7090 9 Dec 05 09:11 LAG1 9 0 12 -10 +- 22 3 +- 23 1 7090 9 Dec 05 09:56 LAG2 13 0 6 7 +- 17 -10 +- 19 2 7090 9 Dec 05 18:11 LAG1 16 0 4 -3 +- 10 0 +- 9 2 7090 9 Dec 05 19:23 LAG2 14 0 19 -8 +- 11 13 +- 9 1 7090 9 Dec 05 21:39 LAG1 17 0 5 -3 +- 10 -2 +- 5 2 7090 9 Dec 05 23:31 LAG2 10 0 8 -4 +- 13 7 +- 17 3 7090 10 Dec 05 01:13 LAG1 5 0 16 15 +- 19 -4 +- 56 3 7090 10 Dec 05 03:55 LAG2 14 0 6 4 +- 15 -2 +- 15 5 7090 10 Dec 05 04:33 LAG1 11 0 5 -4 +- 23 5 +- 16 3 7090 11 Dec 05 06:27 LAG2 5 0 5 -8 +- 169 2 +- 92 2 7090 11 Dec 05 06:37 LAG1 3 0 13 -13 +- 34 -1 +- 112 1 7090 11 Dec 05 22:45 LAG1 10 0 7 -4 +- 29 6 +- 19 3 7090 11 Dec 05 23:49 LAG2 12 0 6 -7 +- 15 3 +- 16 2 7090 12 Dec 05 03:59 LAG2 15 0 5 3 +- 10 -1 +- 10 3 7090 12 Dec 05 05:13 LAG1 14 0 12 -2 +- 14 9 +- 9 2 7090 12 Dec 05 08:27 LAG2 6 0 16 -14 +- 60 -2 +- 52 1 7090 12 Dec 05 08:39 LAG1 5 0 23 -26 +- 65 -2 +- 58 0 7090 12 Dec 05 17:45 LAG1 14 0 15 -10 +- 14 -6 +- 13 2 7090 12 Dec 05 21:13 LAG1 12 0 17 -16 +- 12 -5 +- 10 1 7090 12 Dec 05 21:39 LAG2 10 0 7 -11 +- 30 -3 +- 19 1 7090 13 Dec 05 00:37 LAG1 8 0 17 17 +- 16 0 +- 26 3 7090 13 Dec 05 02:15 LAG2 4 0 9 13 +- 72 -9 +- 134 2 7090 13 Dec 05 03:53 LAG1 13 0 7 -2 +- 13 0 +- 12 6 7090 13 Dec 05 06:11 LAG2 9 0 4 0 +- 31 -4 +- 25 1 7090 13 Dec 05 07:09 LAG1 19 0 12 -12 +- 9 -1 +- 5 2 7090 13 Dec 05 23:19 LAG1 6 0 11 8 +- 18 10 +- 20 4 7090 14 Dec 05 04:05 LAG2 25 0 7 6 +- 8 3 +- 6 2 7090 14 Dec 05 09:33 LAG1 3 0 10 -9 +- 82 2 +- 165 0 7090 15 Dec 05 01:23 LAG1 8 0 11 8 +- 15 3 +- 26 5 7090 15 Dec 05 02:21 LAG2 9 0 8 8 +- 16 -8 +- 19 4 7090 15 Dec 05 04:43 LAG1 13 0 3 5 +- 17 -2 +- 11 1 7090 15 Dec 05 06:17 LAG2 18 0 6 3 +- 10 1 +- 5 4 7090 15 Dec 05 07:59 LAG1 12 1 4 -1 +- 13 -1 +- 8 4 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 10 Dec 05 01:19 LAG2 17 0 2 0 +- 10 0 +- 5 1 7105 10 Dec 05 02:47 LAG1 13 0 22 -5 +- 13 -13 +- 8 3 7105 10 Dec 05 05:29 LAG2 20 0 15 -13 +- 9 -3 +- 5 3 7105 10 Dec 05 06:25 LAG1 11 0 32 -3 +- 24 -14 +- 12 3 7105 12 Dec 05 07:27 LAG1 3 0 31 54 +- 451 -35 +- 185 0 7105 13 Dec 05 08:25 LAG2 4 0 5 -26 +- 108 21 +- 91 0 7105 14 Dec 05 07:37 LAG1 17 0 10 -13 +- 13 -4 +- 7 0 7105 14 Dec 05 10:21 LAG2 5 0 6 -3 +- 27 22 +- 81 3 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 8 Dec 05 00:51 LAG2 17 0 8 -5 +- 10 -3 +- 6 2 7110 8 Dec 05 02:21 LAG1 15 0 10 -3 +- 10 -7 +- 8 1 7110 8 Dec 05 04:59 LAG2 9 0 8 -8 +- 14 -2 +- 9 2 7110 8 Dec 05 05:45 LAG1 8 0 6 -6 +- 15 2 +- 17 2 7110 8 Dec 05 08:57 LAG1 12 0 14 -10 +- 12 4 +- 5 2 7110 8 Dec 05 09:37 LAG2 8 0 8 -7 +- 30 0 +- 25 3 7110 13 Dec 05 07:53 LAG2 21 0 14 -11 +- 9 8 +- 6 4 7110 13 Dec 05 09:11 LAG1 20 0 12 -7 +- 9 -4 +- 4 2 7110 13 Dec 05 11:51 LAG2 8 0 26 -5 +- 15 22 +- 14 5 7110 13 Dec 05 13:00 LAG1 4 0 4 0 +- 21 15 +- 90 1 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 8 Dec 05 16:31 LAG2 8 0 48 10 +- 55 -18 +- 23 9 7237 8 Dec 05 16:39 LAG1 23 0 19 14 +- 31 6 +- 22 7 7237 8 Dec 05 20:11 LAG1 9 0 17 17 +- 57 2 +- 48 7 7237 10 Dec 05 16:45 LAG2 10 0 61 26 +- 48 -25 +- 23 9 7237 10 Dec 05 17:29 LAG1 16 0 20 16 +- 40 4 +- 23 4 7237 10 Dec 05 20:59 LAG2 5 0 52 50 +- 68 -33 +- 236 10 7237 10 Dec 05 21:09 LAG1 3 0 31 56 +- 554 33 +- 723 2 7237 11 Dec 05 12:53 LAG1 8 0 32 30 +- 75 0 +- 69 9 7237 11 Dec 05 14:53 LAG2 14 0 39 23 +- 40 -19 +- 26 8 7237 11 Dec 05 16:02 LAG1 15 0 18 14 +- 40 6 +- 25 7 7237 11 Dec 05 19:08 LAG2 5 0 52 45 +- 69 -28 +- 163 18 7237 12 Dec 05 08:55 LAG2 16 0 29 29 +- 42 -5 +- 31 9 7237 12 Dec 05 11:21 LAG1 9 0 74 47 +- 53 -25 +- 31 8 7237 12 Dec 05 12:55 LAG2 9 0 33 27 +- 51 -13 +- 36 9 7237 12 Dec 05 14:46 LAG1 6 0 21 23 +- 69 -6 +- 50 6 7237 12 Dec 05 17:01 LAG2 6 0 66 18 +- 67 -27 +- 31 3 7237 12 Dec 05 18:21 LAG1 8 0 41 41 +- 54 -1 +- 59 7 7237 13 Dec 05 10:05 LAG1 11 0 33 25 +- 46 -17 +- 32 6 7237 13 Dec 05 11:21 LAG2 8 0 26 27 +- 164 -1 +- 111 7 7237 13 Dec 05 13:33 LAG1 8 0 22 20 +- 56 0 +- 75 8 7237 13 Dec 05 15:10 LAG2 8 0 35 10 +- 125 -19 +- 97 9 7237 13 Dec 05 16:53 LAG1 13 0 17 1 +- 42 8 +- 23 7 7237 13 Dec 05 19:29 LAG2 6 0 26 46 +- 160 -19 +- 133 2 7237 14 Dec 05 08:53 LAG1 8 0 12 2 +- 71 -3 +- 46 12 7237 14 Dec 05 09:15 LAG2 6 0 12 2 +- 79 -7 +- 45 3 7237 14 Dec 05 12:13 LAG1 10 0 31 23 +- 49 -17 +- 54 5 7237 14 Dec 05 13:09 LAG2 13 0 14 11 +- 47 -1 +- 37 7 7237 14 Dec 05 15:31 LAG1 16 0 28 24 +- 38 -10 +- 24 7 7237 14 Dec 05 17:45 LAG2 6 0 19 5 +- 364 -11 +- 180 7 7237 14 Dec 05 19:03 LAG1 12 0 29 30 +- 46 -2 +- 30 5 7237 15 Dec 05 10:53 LAG1 6 0 55 40 +- 78 -16 +- 63 10 7237 15 Dec 05 11:14 LAG2 17 0 30 24 +- 39 7 +- 29 7 7237 15 Dec 05 14:13 LAG1 11 0 11 2 +- 54 -6 +- 48 7 7237 15 Dec 05 15:23 LAG2 9 0 23 1 +- 120 -15 +- 84 5 7237 15 Dec 05 17:39 LAG1 6 0 13 12 +- 87 0 +- 55 6 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 8 Dec 05 00:49 LAG1 12 0 10 -11 +- 14 -5 +- 10 1 7501 8 Dec 05 03:09 LAG2 5 0 19 -1 +- 277 10 +- 136 2 7501 12 Dec 05 02:21 LAG1 7 0 23 11 +- 46 15 +- 21 2 7501 12 Dec 05 11:35 LAG2 5 0 23 -45 +- 270 -12 +- 149 3 7501 12 Dec 05 12:28 LAG1 13 0 4 0 +- 12 -2 +- 6 1 7501 13 Dec 05 01:03 LAG1 5 0 2 4 +- 117 1 +- 62 2 7501 14 Dec 05 03:23 LAG2 6 0 12 7 +- 50 16 +- 42 1 7501 14 Dec 05 03:34 LAG1 6 0 38 31 +- 58 3 +- 30 3 7501 14 Dec 05 13:27 LAG1 13 0 9 -13 +- 18 4 +- 12 1 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 10 Dec 05 14:39 LAG1 14 0 5 -2 +- 49 1 +- 41 4 7810 10 Dec 05 15:54 LAG2 4 0 14 163 +-1382 73 +- 658 6 7810 10 Dec 05 20:02 LAG2 17 0 15 -14 +- 44 -3 +- 26 4 7810 10 Dec 05 21:31 LAG1 3 0 30 -1 +-2018 13 +- 954 3 7810 11 Dec 05 00:04 LAG2 20 0 13 -11 +- 41 -2 +- 22 5 7810 11 Dec 05 00:57 LAG1 11 0 17 -11 +- 55 -7 +- 29 4 7810 11 Dec 05 04:13 LAG2 8 0 13 -11 +- 65 -2 +- 66 7 7810 11 Dec 05 04:45 LAG1 6 0 23 -14 +- 85 -12 +- 90 4 7810 11 Dec 05 13:05 LAG1 17 0 12 -2 +- 46 9 +- 38 4 7810 11 Dec 05 14:15 LAG2 9 0 16 -12 +- 100 -17 +- 130 13 7810 11 Dec 05 16:37 LAG1 13 0 35 -20 +- 52 14 +- 21 4 7810 11 Dec 05 18:01 LAG2 18 0 13 -13 +- 43 0 +- 27 2 7810 11 Dec 05 20:09 LAG1 19 0 37 -32 +- 42 11 +- 23 4 7810 11 Dec 05 23:31 LAG1 9 0 14 9 +- 253 10 +- 113 2 7810 12 Dec 05 15:57 LAG1 2 0 20 -229 +-7825 81 +-3048 0 7810 12 Dec 05 16:19 LAG2 17 0 23 -6 +- 53 -13 +- 38 4 7810 12 Dec 05 18:49 LAG1 16 0 30 -30 +- 47 0 +- 26 3 7810 12 Dec 05 20:17 LAG2 18 0 23 -19 +- 43 -7 +- 29 3 7810 12 Dec 05 22:18 LAG1 7 0 37 -33 +- 83 -2 +- 45 6 7810 13 Dec 05 14:05 LAG1 6 0 16 -14 +- 89 3 +- 107 2 7810 14 Dec 05 19:35 LAG1 15 0 26 -23 +- 48 5 +- 27 3 7810 14 Dec 05 20:23 LAG2 15 0 33 -25 +- 49 -9 +- 31 2 7810 14 Dec 05 23:00 LAG1 21 0 35 -35 +- 40 0 +- 22 3 7810 15 Dec 05 00:29 LAG2 22 0 25 -21 +- 39 -8 +- 21 5 7810 15 Dec 05 02:27 LAG1 20 0 23 -20 +- 41 -7 +- 22 4 7810 15 Dec 05 14:49 LAG1 15 0 16 -15 +- 48 0 +- 26 4 7810 15 Dec 05 14:59 LAG2 5 0 20 -31 +- 194 12 +- 185 3 7810 15 Dec 05 18:45 LAG1 5 0 9 -26 +- 467 17 +- 234 1 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 8 Dec 05 01:27 LAG1 6 0 74 78 +- 289 1 +- 125 1 7824 8 Dec 05 02:27 LAG2 3 0 66 138 +-1374 -29 +- 570 0 7824 8 Dec 05 20:01 LAG2 7 0 75 91 +- 139 -14 +- 114 5 7824 8 Dec 05 23:49 LAG2 15 0 64 65 +- 47 1 +- 35 2 7824 9 Dec 05 20:01 LAG1 4 0 74 75 +- 506 0 +- 268 5 7824 9 Dec 05 21:47 LAG2 18 0 67 69 +- 30 8 +- 25 6 7824 9 Dec 05 23:01 LAG1 6 0 53 53 +- 78 0 +- 103 5 7824 10 Dec 05 02:05 LAG2 4 0 58 65 +- 780 3 +- 389 2 7824 10 Dec 05 02:21 LAG1 4 0 107 132 +- 464 13 +- 244 0 7824 10 Dec 05 19:59 LAG2 15 0 77 77 +- 31 -5 +- 30 4 7824 11 Dec 05 01:05 LAG1 5 0 80 73 +- 118 -7 +- 118 5 7824 11 Dec 05 18:33 LAG2 3 0 54 97 +-1482 -20 +- 701 2 7824 11 Dec 05 20:29 LAG1 5 0 32 41 +- 88 26 +- 153 8 7824 12 Dec 05 19:07 LAG1 7 0 41 50 +- 75 12 +- 76 4 7824 12 Dec 05 20:13 LAG2 19 0 49 53 +- 30 -16 +- 22 7 7824 13 Dec 05 18:11 LAG2 4 0 97 59 +- 845 -16 +- 422 33 7824 15 Dec 05 01:12 LAG2 1 0 31 0 +- 0 0 +- 0 0 7824 15 Dec 05 18:49 LAG2 2 0 65 17 +-4046 61 +-5221 0 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 8 Dec 05 00:00 LAG2 2 0 4 55 +- 736 -39 +- 491 0 7825 8 Dec 05 03:25 LAG1 9 1 11 4 +- 15 -4 +- 8 6 7825 8 Dec 05 03:35 LAG2 19 3 11 6 +- 10 -2 +- 5 8 7825 8 Dec 05 15:47 LAG1 18 0 6 -1 +- 9 4 +- 9 4 7825 8 Dec 05 17:29 LAG2 16 0 14 13 +- 10 -1 +- 8 3 7825 8 Dec 05 19:13 LAG1 19 0 10 -9 +- 9 1 +- 4 4 7825 8 Dec 05 21:21 LAG2 14 0 3 -5 +- 24 -2 +- 14 2 7825 8 Dec 05 22:49 LAG1 11 0 18 2 +- 12 -2 +- 12 17 7825 9 Dec 05 05:35 LAG1 8 0 8 4 +- 15 4 +- 9 1 7825 9 Dec 05 06:13 LAG2 11 0 8 9 +- 39 -1 +- 25 3 7825 9 Dec 05 18:16 LAG1 11 0 11 -23 +- 31 12 +- 15 4 7825 9 Dec 05 19:33 LAG2 14 0 17 0 +- 11 10 +- 7 6 7825 9 Dec 05 21:26 LAG1 17 2 5 0 +- 11 2 +- 9 4 7825 10 Dec 05 01:03 LAG1 6 2 12 -6 +- 85 17 +- 81 1 7825 10 Dec 05 04:11 LAG1 13 0 4 0 +- 11 0 +- 5 4 7825 10 Dec 05 04:37 LAG2 2 0 18 -100 +-2583 52 +-1149 0 7825 10 Dec 05 21:37 LAG2 25 0 7 4 +- 8 -2 +- 5 4 7825 10 Dec 05 23:31 LAG1 11 1 38 -23 +- 13 -13 +- 16 30 7825 11 Dec 05 02:48 LAG1 16 4 8 6 +- 12 0 +- 9 6 7825 11 Dec 05 22:13 LAG1 15 0 17 -6 +- 10 13 +- 10 4 7825 11 Dec 05 23:57 LAG2 11 0 6 -7 +- 25 -5 +- 22 5 7825 12 Dec 05 01:39 LAG1 13 0 17 4 +- 14 10 +- 11 3 7825 12 Dec 05 04:36 LAG2 7 0 14 46 +- 70 -27 +- 42 9 7825 12 Dec 05 17:17 LAG1 17 0 8 -1 +- 10 -2 +- 5 6 7825 12 Dec 05 17:51 LAG2 20 0 10 9 +- 9 -4 +- 6 3 7825 12 Dec 05 20:57 LAG1 17 0 8 -4 +- 10 -2 +- 7 4 7825 12 Dec 05 21:53 LAG2 15 2 15 7 +- 11 -8 +- 8 5 7825 13 Dec 05 02:25 LAG2 9 1 15 13 +- 15 -16 +- 22 4 7825 13 Dec 05 16:25 LAG2 4 0 3 -3 +- 67 11 +- 113 1 7825 13 Dec 05 16:33 LAG1 3 0 7 -24 +- 412 8 +- 211 2 7825 13 Dec 05 19:35 LAG1 10 0 22 -15 +- 21 5 +- 15 3 7825 13 Dec 05 19:53 LAG2 17 1 16 -1 +- 10 7 +- 6 11 7825 14 Dec 05 00:13 LAG2 7 0 14 -1 +- 72 -8 +- 52 9 7825 14 Dec 05 02:19 LAG1 16 6 15 6 +- 15 16 +- 14 5 7825 14 Dec 05 05:51 LAG1 6 0 9 16 +- 37 10 +- 36 4 7825 14 Dec 05 18:03 LAG2 14 0 13 0 +- 11 7 +- 7 3 7825 14 Dec 05 18:12 LAG1 10 0 17 -12 +- 13 -4 +- 6 4 7825 14 Dec 05 21:41 LAG1 14 0 9 -8 +- 11 -5 +- 10 3 7825 14 Dec 05 22:07 LAG2 25 0 11 -4 +- 8 -4 +- 5 8 7825 15 Dec 05 02:26 LAG2 9 0 21 2 +- 14 -11 +- 7 3 7825 15 Dec 05 04:33 LAG1 4 0 8 12 +- 46 8 +- 65 4 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 10 Dec 05 02:09 LAG1 6 0 30 22 +- 37 -19 +- 74 3 7832 10 Dec 05 02:37 LAG2 6 0 26 27 +- 33 3 +- 77 2 7832 10 Dec 05 11:17 LAG1 9 0 15 16 +- 26 -16 +- 30 1 7832 10 Dec 05 12:21 LAG2 8 0 14 1 +- 46 14 +- 50 1 7832 10 Dec 05 14:49 LAG1 9 0 13 -7 +- 31 -5 +- 28 4 7832 10 Dec 05 16:07 LAG2 7 0 7 -5 +- 84 0 +- 70 4 7832 10 Dec 05 20:35 LAG2 14 0 7 5 +- 18 3 +- 21 3 7832 10 Dec 05 21:13 LAG1 13 0 6 4 +- 18 4 +- 17 2 7832 11 Dec 05 00:35 LAG2 7 0 13 7 +- 97 -3 +- 60 1 7832 11 Dec 05 13:25 LAG1 6 0 14 -12 +- 27 5 +- 22 6 7832 11 Dec 05 14:07 LAG2 6 0 13 1 +- 173 8 +- 97 2 7832 11 Dec 05 18:21 LAG2 2 0 16 -210 +-2043 -123 +-1298 0 7832 11 Dec 05 22:37 LAG2 10 0 9 29 +- 65 17 +- 37 2 7832 11 Dec 05 23:13 LAG1 11 0 5 5 +- 39 4 +- 22 3 7832 12 Dec 05 02:53 LAG2 6 0 5 4 +- 27 2 +- 93 1 7832 12 Dec 05 12:05 LAG1 10 0 14 -2 +- 28 -6 +- 15 4 7832 12 Dec 05 12:35 LAG2 6 0 10 4 +- 60 7 +- 70 1 7832 12 Dec 05 16:15 LAG2 11 0 16 -23 +- 32 -16 +- 24 6 7832 12 Dec 05 20:57 LAG2 11 0 13 -12 +- 26 0 +- 29 3 7832 12 Dec 05 21:55 LAG1 9 0 6 -11 +- 49 -7 +- 32 3 7832 13 Dec 05 00:51 LAG2 7 0 23 30 +- 55 7 +- 45 4 7832 13 Dec 05 01:27 LAG1 9 0 19 15 +- 23 -6 +- 24 4 7832 13 Dec 05 14:03 LAG1 5 0 7 -16 +- 181 -5 +- 96 1 7832 13 Dec 05 14:25 LAG2 6 0 25 -9 +- 118 10 +- 85 2 7832 13 Dec 05 22:57 LAG2 11 0 7 8 +- 27 6 +- 22 3 7832 14 Dec 05 00:01 LAG1 8 0 11 13 +- 89 11 +- 45 3 7832 14 Dec 05 12:45 LAG2 7 0 13 4 +- 36 13 +- 50 2 7832 14 Dec 05 12:59 LAG1 9 0 11 -9 +- 51 -1 +- 29 3 7832 14 Dec 05 16:21 LAG1 5 0 5 6 +- 39 -13 +- 87 1 7832 14 Dec 05 16:31 LAG2 10 0 11 -14 +- 65 -2 +- 48 2 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 8 Dec 05 06:17 LAG1 22 0 34 34 +- 20 -4 +- 11 6 7838 8 Dec 05 08:18 LAG2 21 0 45 41 +- 20 9 +- 13 7 7838 8 Dec 05 09:47 LAG1 19 0 49 48 +- 22 -5 +- 14 6 7838 8 Dec 05 12:33 LAG2 13 0 47 46 +- 26 12 +- 30 8 7838 8 Dec 05 16:39 LAG2 18 0 47 48 +- 23 8 +- 14 4 7838 8 Dec 05 20:07 LAG1 12 0 20 -3 +- 27 19 +- 30 8 7838 9 Dec 05 04:57 LAG1 16 0 35 32 +- 24 -10 +- 22 4 7838 9 Dec 05 14:46 LAG2 13 0 52 52 +- 36 0 +- 31 8 7838 9 Dec 05 15:19 LAG1 10 0 50 48 +- 32 2 +- 32 4 7838 9 Dec 05 18:45 LAG1 8 0 26 33 +- 45 13 +- 49 1 7838 10 Dec 05 07:05 LAG1 15 0 52 38 +- 25 -14 +- 14 6 7838 12 Dec 05 07:58 LAG1 14 0 35 28 +- 25 -15 +- 18 5 7838 12 Dec 05 08:45 LAG2 6 0 21 60 +- 131 27 +- 76 4 7838 12 Dec 05 13:03 LAG2 4 0 39 53 +- 74 24 +- 82 7 7838 12 Dec 05 17:12 LAG2 7 0 47 48 +- 53 1 +- 45 2 7838 13 Dec 05 07:11 LAG2 5 0 46 43 +- 52 8 +- 90 4 7838 13 Dec 05 15:24 LAG2 8 0 50 52 +- 37 11 +- 46 4 7838 14 Dec 05 05:11 LAG1 15 0 16 14 +- 25 7 +- 21 4 7838 14 Dec 05 08:48 LAG1 11 0 32 32 +- 28 -2 +- 27 2 7838 14 Dec 05 09:15 LAG2 12 0 56 35 +- 40 18 +- 29 2 7838 14 Dec 05 17:22 LAG2 15 0 31 31 +- 25 8 +- 18 5 7838 14 Dec 05 18:50 LAG1 20 0 25 19 +- 21 9 +- 14 9 7838 15 Dec 05 07:02 LAG2 18 0 36 36 +- 23 14 +- 17 6 7838 15 Dec 05 11:17 LAG2 8 0 47 64 +- 47 48 +- 45 10 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 8 Dec 05 19:55 LAG2 13 0 6 -2 +- 11 3 +- 8 1 7839 8 Dec 05 20:51 LAG1 10 0 7 2 +- 15 4 +- 11 1 7839 10 Dec 05 19:59 LAG2 24 0 2 -1 +- 8 0 +- 4 1 7839 10 Dec 05 21:33 LAG1 12 0 3 -2 +- 13 1 +- 7 2 7839 11 Dec 05 00:07 LAG2 24 0 3 -1 +- 8 -1 +- 4 0 7839 11 Dec 05 00:51 LAG1 15 0 9 -1 +- 10 -5 +- 5 2 7839 11 Dec 05 20:07 LAG1 14 0 29 -18 +- 11 12 +- 6 1 7839 11 Dec 05 22:09 LAG2 22 0 11 3 +- 8 5 +- 4 1 7839 11 Dec 05 23:27 LAG1 27 0 11 1 +- 8 4 +- 3 4 7839 12 Dec 05 02:17 LAG2 18 0 4 4 +- 10 0 +- 5 2 7839 12 Dec 05 03:05 LAG1 17 0 3 1 +- 11 -1 +- 8 2 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 8 Dec 05 16:09 LAG2 5 0 5 -3 +- 47 -6 +- 101 1 7840 8 Dec 05 17:15 LAG1 6 0 16 20 +- 84 15 +- 37 2 7840 8 Dec 05 19:49 LAG2 19 0 6 0 +- 15 3 +- 10 3 7840 8 Dec 05 20:51 LAG1 17 0 9 6 +- 16 3 +- 10 2 7840 8 Dec 05 23:53 LAG2 19 0 4 1 +- 15 -1 +- 8 2 7840 9 Dec 05 00:15 LAG1 11 0 10 0 +- 21 -4 +- 10 3 7840 9 Dec 05 03:47 LAG1 12 0 15 1 +- 19 -10 +- 13 2 7840 9 Dec 05 03:55 LAG2 10 0 5 -4 +- 20 0 +- 17 1 7840 9 Dec 05 17:57 LAG2 11 0 3 0 +- 20 0 +- 15 3 7840 9 Dec 05 19:43 LAG1 9 0 2 -2 +- 37 1 +- 28 1 7840 9 Dec 05 21:59 LAG2 21 0 12 2 +- 14 7 +- 9 2 7840 9 Dec 05 22:53 LAG1 17 0 9 3 +- 16 -5 +- 10 3 7840 10 Dec 05 02:03 LAG2 12 0 10 0 +- 20 6 +- 12 2 7840 10 Dec 05 02:19 LAG1 15 0 23 0 +- 17 -10 +- 7 4 7840 10 Dec 05 14:33 LAG1 17 0 8 8 +- 16 -2 +- 12 1 7840 10 Dec 05 16:15 LAG2 9 0 6 -4 +- 22 -6 +- 37 1 7840 10 Dec 05 18:03 LAG1 17 0 7 -2 +- 16 2 +- 7 3 7840 10 Dec 05 19:57 LAG2 20 0 4 2 +- 14 1 +- 8 2 7840 10 Dec 05 21:35 LAG1 17 0 4 -1 +- 16 -2 +- 9 1 7840 11 Dec 05 00:11 LAG2 20 0 5 2 +- 15 -3 +- 10 1 7840 11 Dec 05 00:59 LAG1 13 0 12 2 +- 20 -5 +- 10 4 7840 11 Dec 05 04:09 LAG2 12 0 8 -7 +- 19 -2 +- 19 1 7840 11 Dec 05 04:43 LAG1 13 0 7 -5 +- 18 -3 +- 18 2 7840 11 Dec 05 16:43 LAG1 15 0 24 3 +- 17 10 +- 8 3 7840 11 Dec 05 18:01 LAG2 23 0 10 8 +- 13 3 +- 8 3 7840 11 Dec 05 20:15 LAG1 14 0 19 -10 +- 17 9 +- 10 3 7840 11 Dec 05 22:09 LAG2 17 0 13 4 +- 16 7 +- 9 4 7840 11 Dec 05 23:37 LAG1 18 0 13 8 +- 15 4 +- 8 5 7840 12 Dec 05 02:13 LAG2 16 0 3 2 +- 16 0 +- 9 2 7840 12 Dec 05 03:13 LAG1 18 0 5 -2 +- 15 -2 +- 9 2 7840 12 Dec 05 15:21 LAG1 19 0 20 14 +- 15 -8 +- 9 4 7840 12 Dec 05 16:19 LAG2 16 0 11 8 +- 16 -6 +- 15 2 7840 14 Dec 05 16:45 LAG1 2 0 13 274 +-2108 -111 +- 815 0 7840 14 Dec 05 16:49 LAG2 7 0 2 0 +- 51 1 +- 42 1 7840 14 Dec 05 19:39 LAG1 17 0 5 -3 +- 16 2 +- 9 1 7840 14 Dec 05 20:23 LAG2 12 0 8 0 +- 22 -5 +- 14 2 7840 15 Dec 05 14:51 LAG1 16 0 8 8 +- 16 -3 +- 12 1 7840 15 Dec 05 18:19 LAG1 10 0 16 0 +- 21 7 +- 9 3 7840 15 Dec 05 18:35 LAG2 17 0 8 -1 +- 16 4 +- 9 3 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 9 Dec 05 18:23 LAG2 8 0 10 -30 +- 50 14 +- 28 4 7841 12 Dec 05 18:57 LAG1 11 0 7 0 +- 12 -4 +- 11 5 7841 12 Dec 05 20:26 LAG2 13 0 10 0 +- 12 0 +- 7 10 7841 12 Dec 05 22:13 LAG1 20 0 7 0 +- 9 -2 +- 5 4 7841 13 Dec 05 00:23 LAG2 12 0 11 -4 +- 19 -8 +- 14 6 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 8 Dec 05 01:27 LAG1 7 0 5 -1 +- 53 -3 +- 29 1 7941 8 Dec 05 01:57 LAG2 22 0 4 -2 +- 9 -1 +- 5 2 7941 12 Dec 05 15:17 LAG1 14 0 15 2 +- 11 -7 +- 5 2 7941 12 Dec 05 16:05 LAG2 12 0 11 -4 +- 21 -8 +- 12 1 7941 12 Dec 05 18:53 LAG1 2 0 20 -4 +- 954 8 +- 505 0 7941 14 Dec 05 19:37 LAG1 15 0 6 -1 +- 10 4 +- 8 3 7941 14 Dec 05 20:45 LAG2 4 0 6 -24 +- 104 -22 +- 111 2 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 8 Dec 05 17:23 LAG1 10 0 20 -14 +- 13 11 +- 11 3 8834 8 Dec 05 19:51 LAG2 8 0 18 -24 +- 40 -4 +- 25 3 8834 11 Dec 05 00:19 LAG2 19 0 10 -3 +- 11 -3 +- 7 6 8834 11 Dec 05 13:15 LAG1 9 0 4 -1 +- 15 3 +- 11 2 8834 11 Dec 05 14:33 LAG2 8 0 6 -3 +- 26 -3 +- 35 2 8834 11 Dec 05 22:15 LAG2 11 0 14 -3 +- 12 7 +- 7 6 8834 12 Dec 05 02:21 LAG2 7 0 11 -9 +- 18 1 +- 13 2 8834 12 Dec 05 03:11 LAG1 14 0 9 -5 +- 11 -3 +- 9 7 8834 12 Dec 05 11:49 LAG1 4 0 4 -8 +- 47 -26 +- 117 0 8834 12 Dec 05 15:41 LAG1 3 0 5 -1 +- 130 -3 +- 130 3 8834 12 Dec 05 16:51 LAG2 4 0 24 13 +- 252 -18 +- 125 0 8834 12 Dec 05 18:59 LAG1 3 0 19 -27 +- 104 -8 +- 99 1 8834 12 Dec 05 20:31 LAG2 5 0 9 -5 +- 21 6 +- 28 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 051005 - 051102 0/ 9/ 0 0/ 3/ 0 12 1831 LVIL 050703 - 051103 0/ 68/ 0 0/ 15/ 0 83 1864 MD2LAS 050701 - 051215 0/120/ 0 0/ 52/ 0 172 1873 SIMLAS 050701 - 051213 0/ 58/ 0 0/ 12/ 0 70 1884 RIGLAS 050703 - 051213 0/ 98/ 1 0/ 24/ 0 123 1893 CRMLAS 050723 - 051013 0/ 17/ 0 0/ 0/ 0 17 6405 TIGO 050705 - 051201 48/ 12/ 3 43/ 32/ 3 141 6810 ZIMLAT 050701 - 051215 106/216/ 22 144/118/ 18 624 7080 MLRS25 050701 - 051210 7/ 72/ 2 10/ 57/ 3 151 7090 ML0514 050701 - 051215 176/144/ 31 140/213/ 18 722 7105 ML0725 050704 - 051214 13/ 94/ 10 21/ 55/ 7 200 7110 ML0414 050701 - 051213 47/181/ 26 52/ 90/ 9 405 7124 ML0819 050818 - 051102 1/ 14/ 2 1/ 32/ 1 51 7130 TL04** 050803 - 051103 8/ 26/ 1 12/ 10/ 2 59 7237 CHALAS 050410 - 051215 0/176/ 2 0/118/ 0 296 7249 BEJLAS 050703 - 051207 0/ 92/ 0 0/ 60/ 0 152 7355 TROS02 050701 - 050906 0/ 24/ 0 0/ 0/ 0 24 7358 GMSL 050802 - 051129 7/ 16/ 0 2/ 8/ 0 33 7405 TIGO 050705 - 051107 2/ 5/ 0 0/ 9/ 0 16 7501 ML0616 050701 - 051214 21/ 44/ 5 12/ 64/ 3 149 7810 ZIMLAT 050701 - 051215 105/213/ 22 145/115/ 19 619 7811 POLLAS 050704 - 051201 0/ 88/ 0 0/ 23/ 0 111 7824 SPNLAS 050701 - 051215 10/150/ 8 10/ 80/ 7 265 7825 STL3 050702 - 051215 282/108/ 22 142/170/ 22 746 7832 SALRO 050702 - 051214 88/214/ 24 101/153/ 19 599 7835 GRASSE 050701 - 050705 0/ 3/ 0 0/ 2/ 0 5 7838 SHOLAS 050714 - 051215 21/ 98/ 7 21/ 79/ 4 230 7839 AUSLAS 050702 - 051212 53/129/ 21 95/ 52/ 4 354 7840 RGOLAS 050702 - 051215 73/217/ 26 109/ 96/ 11 532 7841 GFZLA3 050713 - 051213 8/ 87/ 8 7/ 32/ 2 144 7848 FTLR06 050515 - 051027 6/ 48/ 2 5/ 22/ 4 87 7941 MLROnn 050701 - 051214 47/136/ 12 65/ 58/ 10 328 8834 WLRS01 050702 - 051212 81/169/ 27 111/ 82/ 11 481 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 051209.0 65.8 +/- 0.1 390.7 +/- 0.1 -32706.39 +/- 0.02 051210.0 64.9 +/- 0.1 390.4 +/- 0.1 -32707.49 +/- 0.03 051211.0 64.0 +/- 0.1 389.1 +/- 0.1 -32708.47 +/- 0.04 051212.0 63.1 +/- 0.1 388.5 +/- 0.1 -32709.32 +/- 0.05 051213.0 62.7 +/- 0.1 388.1 +/- 0.1 -32709.89 +/- 0.05 051214.0 62.9 +/- 0.1 387.8 +/- 0.1 -32710.25 +/- 0.06 051215.0 64.1 +/- 0.1 387.7 +/- 0.1 -32710.31 +/- 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, 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 ******************************************************************************** |