| Date: | 2006-05-21 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 7145: Delft QL Report May 21, 2006 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2006-05-21 13:15:00 UTC Message No. 7145 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report May 21, 2006 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS May 21, 2006 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 Sun, May 21, 2006. 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 Sun, May 21, 2006. 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 ------------------------------------------------------------------------------ 1873 Simeiz, Crimea, Ukraine 060519 - 060520 1 1 6405 Concepcion, Chile (TIGO 847) 060517 - 060521 4 5 6810 Zimmerwald 846, Switzerland 060519 - 060519 1 1 7080 McDonald Obs., Fort Davis, TX 060519 - 060520 2 1 7090 Yarragadee, Australia 060519 - 060520 2 4 7105 Greenbelt, Maryland 060519 - 060519 - 1 7110 Monument Peak, California 060519 - 060520 - 3 7406 San Juan, Argentina 060519 - 060521 8 4 7501 Hartebeesthoek, SA (MOB-6) 060519 - 060519 1 1 7810 Zimmerwald 423, Switzerland 060519 - 060519 1 1 7821 Shanghai Observatory, China 060519 - 060519 - 1 7824 San Fernando, Spain 060519 - 060521 2 3 7825 Mount Stromlo, Australia 060519 - 060520 1 4 7832 Riyad, Saudi Arabia 060519 - 060520 1 2 7839 Graz, Austria 060518 - 060518 1 1 7841 Potsdam, Germany 060519 - 060519 - 1 8834 Wettzell, Germany 060519 - 060520 3 3 ------ ------ --- --- TOTAL 060517 - 060521 28 37 ------------------------------------------------------------------------------ B. ANALYSIS RESULTS The analysis is based on two orbit solutions using global quick-look normal points that cover a period of 8 days which are computed simultaneously. This week´s data interval runs from Sat, May 13, 2006 to Sun, May 21, 2006. 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 19 22 Number of Passes 122/121 126/125 Number of Normal Points 1162/1157 1464/1460 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 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 17 May 06 23:54 LAG2 6 0 97 93 +- 628 49 +- 449 89 1873 18 May 06 22:18 LAG2 3 0 140 147 +- 535 -8 +- 464 12 1873 19 May 06 18:19 LAG1 10 0 162 143 +- 191 -5 +- 204 75 1873 20 May 06 00:13 LAG2 9 0 133 -81 +- 203 -8 +- 148 107 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 15 May 06 23:53 LAG2 13 0 84 82 +- 87 5 +- 93 5 1884 18 May 06 00:03 LAG2 15 0 25 -23 +- 78 10 +- 75 5 Station 1893 (Kazivili) (position fixed, acc. 100 mm) 1893 18 May 06 22:02 LAG2 7 0 23 41 +- 272 38 +- 231 14 Station 6405 (Concepcion) (position solved, acc. 20 mm) 6405 17 May 06 01:45 LAG1 4 0 4 -4 +- 33 0 +- 86 1 6405 17 May 06 22:29 LAG2 4 0 9 -4 +- 204 -9 +- 155 3 6405 18 May 06 02:37 LAG2 6 0 7 -17 +- 85 -8 +- 70 0 6405 18 May 06 07:04 LAG1 9 0 5 0 +- 36 -3 +- 34 3 6405 19 May 06 00:45 LAG2 8 0 14 -1 +- 24 -16 +- 28 3 6405 19 May 06 02:21 LAG1 8 0 4 1 +- 54 2 +- 34 4 6405 20 May 06 08:01 LAG1 3 0 18 -19 +- 45 -5 +- 217 0 6405 20 May 06 16:53 LAG2 6 0 8 2 +- 62 5 +- 59 2 6405 20 May 06 21:03 LAG2 8 0 3 1 +- 77 -2 +- 55 2 6405 20 May 06 23:53 LAG1 4 0 9 -18 +- 103 33 +- 143 2 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 13 May 06 08:57 LAG1 9 0 29 19 +- 84 15 +- 35 13 6810 13 May 06 09:41 LAG2 9 0 30 28 +- 108 0 +- 73 6 6810 13 May 06 12:39 LAG1 16 0 12 5 +- 50 5 +- 33 4 6810 15 May 06 13:27 LAG1 12 0 13 5 +- 65 4 +- 40 4 6810 19 May 06 01:43 LAG2 15 0 8 -19 +- 127 -9 +- 69 3 6810 19 May 06 07:51 LAG1 10 0 28 20 +- 74 -6 +- 39 3 6810 19 May 06 10:05 LAG2 14 0 5 -2 +- 49 -3 +- 38 2 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 17 May 06 02:37 LAG1 7 0 15 9 +- 95 -12 +- 49 1 7080 17 May 06 05:07 LAG2 14 0 14 13 +- 21 0 +- 19 4 7080 17 May 06 08:57 LAG2 17 0 7 5 +- 16 -2 +- 10 4 7080 18 May 06 04:31 LAG1 16 0 11 -6 +- 17 -5 +- 13 4 7080 18 May 06 06:59 LAG2 20 0 8 6 +- 15 0 +- 11 4 7080 18 May 06 11:12 LAG2 5 0 11 32 +- 259 14 +- 175 2 7080 19 May 06 03:02 LAG1 13 0 4 -1 +- 21 0 +- 14 3 7080 19 May 06 09:39 LAG2 7 0 9 12 +- 104 -3 +- 79 2 7080 20 May 06 01:43 LAG1 13 0 24 -17 +- 19 7 +- 14 3 7080 20 May 06 05:25 LAG1 11 0 2 0 +- 22 2 +- 31 1 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 13 May 06 06:39 LAG2 8 0 4 -12 +- 73 -5 +- 39 2 7090 13 May 06 11:03 LAG2 9 0 9 10 +- 30 2 +- 29 1 7090 13 May 06 14:43 LAG1 7 0 8 7 +- 33 7 +- 17 3 7090 13 May 06 15:03 LAG2 16 0 15 15 +- 10 0 +- 5 3 7090 13 May 06 18:15 LAG1 13 0 5 4 +- 11 3 +- 13 1 7090 14 May 06 00:51 LAG1 22 0 15 -15 +- 9 0 +- 5 4 7090 14 May 06 20:23 LAG1 7 0 10 6 +- 24 -13 +- 24 1 7090 14 May 06 23:57 LAG1 1 0 15 0 +- 0 0 +- 0 0 7090 15 May 06 22:05 LAG1 10 0 13 -15 +- 43 -1 +- 23 1 7090 16 May 06 10:51 LAG1 11 0 5 -3 +- 15 -2 +- 19 2 7090 16 May 06 13:23 LAG2 22 0 6 5 +- 8 0 +- 4 4 7090 17 May 06 00:27 LAG1 1 0 12 0 +- 0 0 +- 0 0 7090 17 May 06 03:48 LAG2 3 0 28 198 +- 837 -69 +- 344 4 7090 17 May 06 07:13 LAG2 15 0 7 -7 +- 11 -3 +- 11 4 7090 17 May 06 11:25 LAG2 13 0 9 7 +- 16 -1 +- 13 3 7090 17 May 06 12:53 LAG1 11 0 22 -23 +- 19 0 +- 13 0 7090 18 May 06 02:55 LAG1 4 0 13 -38 +- 156 20 +- 123 1 7090 18 May 06 05:09 LAG2 26 0 3 1 +- 8 0 +- 4 2 7090 18 May 06 12:03 LAG1 3 0 8 27 +- 575 -9 +- 275 1 7090 18 May 06 13:37 LAG2 17 0 2 1 +- 10 0 +- 6 1 7090 18 May 06 15:03 LAG1 14 0 5 -3 +- 11 2 +- 8 2 7090 18 May 06 18:27 LAG1 11 0 9 9 +- 12 0 +- 17 2 7090 18 May 06 21:43 LAG1 17 0 6 -1 +- 11 5 +- 7 1 7090 19 May 06 01:13 LAG1 16 0 9 -10 +- 12 3 +- 7 2 7090 19 May 06 03:19 LAG2 18 0 17 17 +- 10 -6 +- 6 3 7090 19 May 06 07:23 LAG2 24 0 10 -6 +- 8 -5 +- 6 2 7090 19 May 06 11:41 LAG2 28 0 4 1 +- 8 -1 +- 4 4 7090 19 May 06 13:37 LAG1 19 0 17 -16 +- 9 -1 +- 4 3 7090 19 May 06 15:45 LAG2 16 0 6 1 +- 11 3 +- 8 1 7090 19 May 06 17:19 LAG1 7 0 10 -5 +- 21 -4 +- 20 4 7090 20 May 06 09:39 LAG2 26 0 2 0 +- 8 0 +- 6 2 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 13 May 06 13:01 LAG2 9 0 9 -11 +- 36 -13 +- 26 1 7105 17 May 06 09:07 LAG2 22 0 3 0 +- 8 0 +- 5 3 7105 18 May 06 07:39 LAG2 4 0 5 -7 +- 60 3 +- 92 0 7105 18 May 06 11:33 LAG2 3 0 9 39 +- 303 17 +- 179 0 7105 19 May 06 13:39 LAG2 16 0 10 -12 +- 13 -2 +- 9 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 13 May 06 01:05 LAG1 3 0 13 2 +- 71 -32 +- 139 0 7110 13 May 06 04:13 LAG1 19 0 2 0 +- 9 0 +- 5 2 7110 13 May 06 08:21 LAG2 23 0 8 3 +- 8 1 +- 5 7 7110 14 May 06 19:07 LAG1 3 0 11 -12 +- 28 -21 +- 122 3 7110 16 May 06 06:51 LAG2 12 0 14 14 +- 12 0 +- 11 4 7110 16 May 06 10:52 LAG2 13 0 13 14 +- 12 -2 +- 9 3 7110 17 May 06 05:15 LAG2 3 0 2 -3 +- 37 8 +- 145 0 7110 17 May 06 06:04 LAG1 11 0 9 -4 +- 16 -5 +- 17 5 7110 17 May 06 08:49 LAG2 8 0 6 3 +- 15 1 +- 7 5 7110 17 May 06 13:25 LAG2 11 0 11 0 +- 17 -14 +- 20 2 7110 17 May 06 22:01 LAG1 3 0 28 -69 +- 108 65 +- 154 8 7110 18 May 06 00:59 LAG1 7 0 23 -19 +- 24 3 +- 17 2 7110 18 May 06 04:25 LAG1 14 0 5 -2 +- 11 -1 +- 5 4 7110 18 May 06 07:07 LAG2 15 0 4 -2 +- 12 1 +- 9 3 7110 18 May 06 11:01 LAG2 14 0 15 22 +- 22 7 +- 17 4 7110 18 May 06 15:39 LAG2 9 0 6 3 +- 16 -9 +- 21 2 7110 18 May 06 17:05 LAG1 11 0 12 -6 +- 12 -9 +- 11 2 7110 19 May 06 03:17 LAG1 11 0 4 1 +- 16 0 +- 8 3 7110 19 May 06 05:23 LAG2 9 0 8 10 +- 18 -7 +- 23 2 7110 19 May 06 09:01 LAG2 18 0 9 8 +- 9 -2 +- 5 3 7110 20 May 06 07:15 LAG2 14 0 12 -11 +- 11 0 +- 8 5 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 15 May 06 12:52 LAG1 4 0 4 0 +- 76 0 +- 105 4 Station 7406 (San Juan) (position solved, acc. 100 mm) 7406 13 May 06 00:17 LAG1 6 0 19 46 +- 306 -32 +- 231 4 7406 13 May 06 03:33 LAG1 12 0 38 -29 +- 92 -10 +- 62 6 7406 13 May 06 04:01 LAG2 17 0 19 -20 +- 78 -1 +- 67 2 7406 13 May 06 07:01 LAG1 7 0 22 -19 +- 127 -5 +- 156 3 7406 13 May 06 10:13 LAG1 8 0 6 -7 +- 129 -1 +- 154 1 7406 15 May 06 00:17 LAG2 7 0 20 22 +- 313 1 +- 276 2 7406 15 May 06 00:35 LAG1 24 0 30 28 +- 61 -3 +- 31 9 7406 15 May 06 04:19 LAG2 5 0 35 -51 +- 620 -13 +- 503 2 7406 15 May 06 04:29 LAG1 13 0 71 -67 +- 141 -2 +- 90 2 7406 15 May 06 07:35 LAG1 11 0 49 -54 +- 109 -11 +- 124 2 7406 15 May 06 22:29 LAG2 9 0 28 28 +- 162 0 +- 172 3 7406 15 May 06 23:21 LAG1 18 0 30 25 +- 70 -11 +- 65 7 7406 16 May 06 02:17 LAG2 11 0 5 -16 +- 292 -9 +- 160 2 7406 16 May 06 03:03 LAG1 15 0 30 -11 +- 101 -11 +- 54 3 7406 16 May 06 06:23 LAG1 8 0 16 -13 +- 107 -15 +- 138 1 7406 16 May 06 09:39 LAG1 14 0 14 -14 +- 81 0 +- 72 2 7406 17 May 06 00:17 LAG2 24 0 23 9 +- 63 -11 +- 37 4 7406 17 May 06 01:25 LAG1 21 0 12 3 +- 70 -5 +- 38 2 7406 17 May 06 04:31 LAG2 8 0 14 -30 +- 245 -25 +- 249 4 7406 17 May 06 22:31 LAG2 21 0 5 5 +- 68 0 +- 55 2 7406 18 May 06 00:17 LAG1 16 0 5 4 +- 82 -3 +- 61 2 7406 18 May 06 02:27 LAG2 17 0 15 -16 +- 79 -3 +- 54 2 7406 18 May 06 03:51 LAG1 12 0 20 -17 +- 96 -3 +- 83 2 7406 18 May 06 07:09 LAG1 9 0 16 -14 +- 100 -13 +- 165 2 7406 19 May 06 04:41 LAG2 20 0 37 -35 +- 67 -10 +- 69 3 7406 19 May 06 05:51 LAG1 11 0 81 82 +- 91 -17 +- 103 2 7406 19 May 06 09:09 LAG1 12 0 34 -13 +- 95 -24 +- 86 1 7406 19 May 06 22:47 LAG2 11 0 9 6 +- 120 -3 +- 136 3 7406 20 May 06 00:53 LAG1 18 0 94 -95 +- 81 0 +- 48 2 7406 20 May 06 02:51 LAG2 17 0 139 138 +- 73 -4 +- 62 7*CHK* 7406 20 May 06 04:29 LAG1 14 0 113 114 +- 80 -4 +- 52 3 7406 20 May 06 07:51 LAG1 11 0 67 -66 +- 90 -16 +- 118 2 7406 20 May 06 23:29 LAG1 7 0 42 -30 +- 235 8 +- 154 2 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 16 May 06 02:28 LAG1 2 0 11 9 +- 136 -39 +- 265 0 7501 16 May 06 21:59 LAG1 9 0 18 42 +- 43 -17 +- 26 3 7501 17 May 06 04:25 LAG1 9 0 14 3 +- 19 -10 +- 12 1 7501 18 May 06 03:23 LAG1 2 0 16 24 +- 563 -4 +- 330 0 7501 18 May 06 06:23 LAG1 7 0 11 -13 +- 35 -1 +- 26 1 7501 18 May 06 09:19 LAG2 2 0 24 527 +-2779 -265 +-1464 0 7501 18 May 06 17:09 LAG2 10 0 12 15 +- 17 10 +- 12 2 7501 18 May 06 18:57 LAG1 19 0 4 2 +- 9 1 +- 5 2 7501 19 May 06 19:19 LAG2 17 0 12 8 +- 10 5 +- 5 1 7501 19 May 06 21:09 LAG1 4 0 4 5 +- 76 1 +- 52 1 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 13 May 06 08:57 LAG1 11 0 34 23 +- 63 15 +- 26 10 7810 13 May 06 09:42 LAG2 9 0 35 41 +- 136 -4 +- 90 5 7810 13 May 06 12:39 LAG1 16 0 17 11 +- 50 5 +- 33 3 7810 15 May 06 13:27 LAG1 11 0 17 12 +- 65 4 +- 42 4 7810 19 May 06 01:44 LAG2 14 0 16 -6 +- 130 -12 +- 73 3 7810 19 May 06 07:51 LAG1 10 0 38 26 +- 74 -8 +- 39 2 7810 19 May 06 10:05 LAG2 14 0 7 5 +- 49 -2 +- 40 2 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 13 May 06 01:22 LAG2 8 0 40 26 +- 136 -11 +- 118 11 7811 18 May 06 00:07 LAG2 5 0 39 34 +- 82 7 +- 173 18 Station 7821 (Shanghai Observatory) (position solved, acc. 50 mm) 7821 15 May 06 12:38 LAG1 6 0 27 11 +- 67 -2 +- 45 25 7821 19 May 06 16:35 LAG2 2 0 945 -9788 +-1542 -7864 +-1165 0*CHK* Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 13 May 06 23:19 LAG2 7 0 35 34 +- 63 -2 +- 93 2 7824 14 May 06 21:45 LAG1 3 0 49 64 +- 297 18 +- 364 1 7824 19 May 06 21:57 LAG1 10 0 52 51 +- 39 -3 +- 50 4 7824 20 May 06 00:15 LAG2 10 0 26 44 +- 127 -11 +- 73 6 7824 20 May 06 20:35 LAG1 3 0 61 64 +- 311 2 +- 261 1 7824 20 May 06 22:11 LAG2 5 0 12 -6 +- 80 18 +- 233 2 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 13 May 06 03:05 LAG2 14 0 11 10 +- 12 1 +- 10 3 7825 13 May 06 06:59 LAG2 23 0 5 0 +- 8 -1 +- 6 4 7825 13 May 06 11:13 LAG1 9 0 10 -9 +- 14 1 +- 16 4 7825 13 May 06 11:33 LAG2 10 0 5 -1 +- 22 5 +- 19 2 7825 13 May 06 14:45 LAG1 3 0 14 -5 +- 56 -36 +- 108 0 7825 13 May 06 17:55 LAG1 9 1 2 -1 +- 20 0 +- 22 1 7825 14 May 06 01:19 LAG2 6 0 11 12 +- 21 -5 +- 33 5 7825 14 May 06 19:54 LAG1 16 0 8 0 +- 10 -5 +- 7 2 7825 14 May 06 23:57 LAG1 5 0 12 -72 +- 209 30 +- 101 3 7825 15 May 06 03:21 LAG2 9 0 13 12 +- 17 0 +- 13 4 7825 15 May 06 07:25 LAG2 13 0 14 12 +- 11 -5 +- 13 2 7825 15 May 06 11:23 LAG2 16 0 16 0 +- 10 -8 +- 5 4 7825 15 May 06 11:55 LAG1 8 0 8 -9 +- 21 3 +- 9 5 7825 16 May 06 05:27 LAG2 17 0 4 -4 +- 11 1 +- 7 2 7825 16 May 06 09:27 LAG2 27 0 7 -5 +- 8 3 +- 4 1 7825 16 May 06 10:29 LAG1 20 0 4 -1 +- 9 1 +- 5 2 7825 16 May 06 13:36 LAG2 9 0 12 9 +- 14 -6 +- 13 4 7825 16 May 06 14:20 LAG1 4 0 6 -5 +- 49 3 +- 32 5 7825 16 May 06 17:24 LAG1 2 0 48 42 +- 47 -7 +- 45 0 7825 16 May 06 20:39 LAG1 14 0 6 -3 +- 11 0 +- 5 5 7825 17 May 06 03:39 LAG2 2 0 10 8 +- 79 -10 +- 444 0 7825 17 May 06 07:29 LAG2 22 0 4 -2 +- 8 -1 +- 5 3 7825 17 May 06 09:08 LAG1 16 0 11 1 +- 10 -10 +- 9 2 7825 17 May 06 11:51 LAG2 19 0 6 4 +- 11 -1 +- 7 5 7825 17 May 06 12:51 LAG1 7 0 22 -21 +- 16 1 +- 22 5 7825 18 May 06 09:43 LAG2 27 0 8 0 +- 8 4 +- 4 3 7825 18 May 06 11:17 LAG1 12 0 12 -12 +- 20 0 +- 12 3 7825 18 May 06 21:31 LAG1 15 0 10 -7 +- 10 4 +- 6 3 7825 19 May 06 03:47 LAG2 8 0 10 8 +- 14 -3 +- 18 6 7825 19 May 06 07:49 LAG2 16 0 8 0 +- 11 -6 +- 10 5 7825 20 May 06 02:03 LAG2 9 0 5 1 +- 35 2 +- 23 2 7825 20 May 06 05:59 LAG2 8 0 4 -2 +- 14 0 +- 20 4 7825 20 May 06 08:35 LAG1 13 0 9 -5 +- 12 -3 +- 13 7 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 19 May 06 18:15 LAG1 5 2 40 -47 +- 81 165 +- 186 15 7832 19 May 06 20:23 LAG2 9 0 13 -28 +- 68 20 +- 45 9 7832 20 May 06 00:12 LAG2 6 0 15 -26 +- 84 -21 +- 86 12 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 13 May 06 01:09 LAG2 15 0 3 3 +- 13 0 +- 7 1 7839 15 May 06 05:39 LAG2 13 0 9 5 +- 14 -3 +- 12 0 7839 15 May 06 09:39 LAG2 6 0 8 -3 +- 46 -7 +- 31 0 7839 15 May 06 09:51 LAG1 8 0 12 -12 +- 16 4 +- 7 1 7839 15 May 06 13:21 LAG1 7 0 12 -3 +- 29 8 +- 26 0 7839 17 May 06 10:07 LAG2 9 0 3 0 +- 19 2 +- 18 2 7839 17 May 06 14:21 LAG1 5 0 4 -1 +- 52 4 +- 47 0 7839 17 May 06 20:13 LAG2 3 0 14 13 +- 25 1 +- 77 0 7839 17 May 06 21:03 LAG1 12 0 8 -1 +- 12 -6 +- 9 2 7839 18 May 06 03:59 LAG2 6 0 11 1 +- 69 10 +- 53 0 7839 18 May 06 08:05 LAG2 10 0 12 12 +- 13 0 +- 11 1 7839 18 May 06 09:29 LAG1 2 0 2 3 +- 100 0 +- 178 0 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 13 May 06 09:19 LAG2 7 0 19 21 +- 62 1 +- 37 3 7840 13 May 06 16:01 LAG1 4 0 6 48 +- 328 25 +- 160 0 7840 16 May 06 22:47 LAG1 7 0 7 3 +- 25 -15 +- 62 2 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 13 May 06 01:29 LAG2 14 1 4 1 +- 13 1 +- 12 4 7841 14 May 06 18:07 LAG1 14 1 5 4 +- 11 -1 +- 8 2 7841 15 May 06 01:31 LAG2 16 0 8 -2 +- 10 1 +- 7 7 7841 19 May 06 01:52 LAG2 16 0 8 -1 +- 10 -1 +- 6 7 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 13 May 06 01:19 LAG2 6 0 9 2 +- 53 -4 +- 46 6 7941 13 May 06 05:37 LAG2 6 0 11 9 +- 23 -4 +- 41 2 7941 15 May 06 09:53 LAG1 6 0 18 -8 +- 75 5 +- 40 2 7941 15 May 06 13:17 LAG1 5 0 17 8 +- 98 15 +- 61 1 7941 15 May 06 16:37 LAG1 15 0 8 -5 +- 10 3 +- 5 2 7941 15 May 06 20:15 LAG1 16 0 4 0 +- 10 -2 +- 8 3 7941 15 May 06 23:24 LAG2 26 0 6 1 +- 8 3 +- 5 4 7941 16 May 06 03:34 LAG2 15 0 15 5 +- 13 13 +- 9 2 7941 16 May 06 07:43 LAG2 13 0 8 20 +- 32 8 +- 18 2 7941 16 May 06 08:25 LAG1 6 0 13 -12 +- 172 -10 +- 68 2 7941 16 May 06 12:01 LAG1 10 0 4 2 +- 17 1 +- 15 4 7941 16 May 06 15:17 LAG1 15 0 5 4 +- 11 0 +- 8 3 7941 16 May 06 18:49 LAG1 16 0 13 -5 +- 10 -8 +- 6 3 7941 16 May 06 21:55 LAG2 14 0 13 -14 +- 16 0 +- 14 2 7941 17 May 06 01:37 LAG2 4 0 10 -6 +- 27 2 +- 13 2 7941 17 May 06 05:49 LAG2 11 0 5 16 +- 43 8 +- 25 1 7941 17 May 06 10:45 LAG1 8 0 6 -6 +- 15 -4 +- 17 0 7941 17 May 06 17:53 LAG1 4 0 5 -20 +- 227 10 +- 101 3 7941 18 May 06 09:23 LAG1 8 0 7 0 +- 16 -2 +- 6 4 7941 18 May 06 19:37 LAG1 20 0 7 -3 +- 9 -3 +- 6 2 7941 18 May 06 21:51 LAG2 11 0 8 -6 +- 18 -8 +- 14 4 7941 19 May 06 06:07 LAG2 11 0 23 22 +- 31 0 +- 20 2 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 13 May 06 01:16 LAG2 9 0 6 5 +- 34 7 +- 25 3 8834 13 May 06 19:46 LAG1 1 0 12 0 +- 0 0 +- 0 0 8834 14 May 06 18:25 LAG1 2 0 24 -68 +- 352 47 +- 379 0 8834 15 May 06 01:40 LAG2 1 0 28 0 +- 0 0 +- 0 0 8834 15 May 06 05:43 LAG2 6 0 9 14 +- 43 9 +- 39 6 8834 15 May 06 09:49 LAG2 3 0 7 -22 +- 109 -22 +- 153 0 8834 15 May 06 10:05 LAG1 2 0 28 -26 +- 44 14 +- 351 0 8834 17 May 06 09:51 LAG2 2 0 15 311 +-1739 185 +- 987 0 8834 17 May 06 10:47 LAG1 1 0 21 0 +- 0 0 +- 0 0 8834 17 May 06 21:11 LAG1 9 0 11 -5 +- 19 7 +- 24 4 8834 17 May 06 23:39 LAG2 20 0 8 -3 +- 12 3 +- 8 2 8834 18 May 06 03:59 LAG2 5 0 25 -6 +- 96 14 +- 73 2 8834 19 May 06 06:15 LAG2 7 0 9 8 +- 17 4 +- 24 5 8834 19 May 06 10:09 LAG2 3 0 20 -26 +- 33 -8 +- 31 0 8834 19 May 06 11:40 LAG1 5 0 25 -19 +- 32 -8 +- 36 1 8834 19 May 06 18:35 LAG1 1 0 7 0 +- 0 0 +- 0 0 8834 19 May 06 22:12 LAG1 1 0 10 0 +- 0 0 +- 0 0 8834 20 May 06 04:15 LAG2 6 0 23 -16 +- 47 6 +- 45 1 -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------- 1864 MD2LAS 060104 - 060510 0/ 46/ 0 0/ 17/ 0 63 1873 SIMLAS 060328 - 060520 0/ 11/ 0 0/ 7/ 0 18 1884 RIGLAS 060112 - 060518 0/ 33/ 1 0/ 14/ 1 49 1893 CRMLAS 060113 - 060518 0/ 8/ 0 0/ 1/ 0 9 6405 TIGO 060103 - 060521 20/ 49/ 1 16/ 51/ 9 146 6810 ZIMLAT 060103 - 060519 103/ 86/ 9 89/ 51/ 8 346 7080 MLRS25 060102 - 060520 2/ 54/ 2 5/ 39/ 1 103 7090 ML0514 060101 - 060520 169/228/ 17 106/220/ 19 759 7105 ML0725 060106 - 060519 16/ 65/ 2 22/ 35/ 4 144 7110 ML0414 060103 - 060520 79/ 76/ 8 68/ 54/ 7 292 7124 ML0819 060225 - 060511 0/ 29/ 0 0/ 18/ 0 47 7130 TL04** 060125 - 060316 9/ 9/ 0 3/ 4/ 2 27 7237 CHALAS 060101 - 060405 0/ 94/ 0 0/ 44/ 0 138 7249 BEJLAS 060104 - 060515 0/ 54/ 0 0/ 14/ 0 68 7308 CRLLAS 060110 - 060503 7/ 18/ 0 6/ 14/ 0 45 7358 GMSL 060111 - 060430 1/ 12/ 0 1/ 7/ 0 21 7405 TIGO 060103 - 060302 0/ 9/ 0 0/ 5/ 0 14 7406 060223 - 060521 0/155/ 0 0/141/ 0 296 7501 ML0616 060117 - 060519 25/ 68/ 3 15/ 69/ 4 184 7810 ZIMLAT 060103 - 060519 103/ 89/ 9 87/ 51/ 7 346 7811 POLLAS 060109 - 060518 0/ 31/ 0 0/ 10/ 0 41 7821 CHILAS 060106 - 060519 0/ 17/ 0 0/ 10/ 0 27 7824 SPNLAS 060109 - 060521 0/ 74/ 0 0/ 25/ 1 100 7825 STL3 060102 - 060520 102/146/ 13 88/170/ 15 534 7832 SALRO 060103 - 060520 50/ 95/ 4 72/ 62/ 7 290 7838 SHOLAS 060105 - 060511 29/ 76/ 1 34/ 34/ 4 178 7839 AUSLAS 060109 - 060518 73/ 68/ 5 69/ 31/ 5 251 7840 RGOLAS 060104 - 060516 86/ 76/ 11 70/ 30/ 7 280 7841 GFZLA3 060107 - 060519 11/ 54/ 5 15/ 28/ 7 120 7941 MLROnn 060125 - 060519 60/ 58/ 3 47/ 34/ 7 209 8834 WLRS01 060105 - 060520 70/ 58/ 3 86/ 41/ 11 269 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 060514.0 108.4 +/- 0.3 350.2 +/- 0.2 250.90 +/- 0.02 060515.0 110.0 +/- 0.1 350.2 +/- 0.2 250.81 +/- 0.03 060516.0 110.3 +/- 0.1 348.8 +/- 0.1 250.72 +/- 0.05 060517.0 110.8 +/- 0.1 348.8 +/- 0.1 250.67 +/- 0.05 060518.0 111.0 +/- 0.1 347.7 +/- 0.1 250.45 +/- 0.06 060519.0 111.0 +/- 0.1 347.0 +/- 0.1 250.08 +/- 0.06 060520.0 110.9 +/- 0.1 346.1 +/- 0.1 249.42 +/- 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 system 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 ******************************************************************************** |