| Date: | 2004-11-02 07:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4489: Delft QL Report November 02, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-11-02 07:15:00 UTC Message No. 4489 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report November 02, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS November 2, 2004 This is a weekly 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, Nov 1, 2004. Questions and comments should be addressed to: R. Noomen Delft University of Technology Faculty of Aerospace Engineering Delft Institute for Earth-Oriented Space Research Kluyverweg 1 2629 HS Delft The Netherlands Telephone: +31-15-2785377 Telefax : +31-15-2785322 E-mail : ron.noomen@deos.tudelft.nl A. PASS SUMMARY The table below gives an overview of the ranging data both on LAGEOS-1 and LAGEOS-2, as received by the Quick-Look Data Analysis Center (QLDAC) on Mon, Nov 1, 2004. All data were obtained through the NASA Crustal Dynamics Data Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany. The data are unscreened and may span more than a week due to late reporting by the stations. ------------------------------------------------------------------------------ Station System/Location Period No. of Passes ID LAGEOS-1 LAGEOS-2 ------------------------------------------------------------------------------ 1824 Kiev, Ukraine 041025 - 041025 - 2 1831 Lviv, Ukraine 041025 - 041028 2 2 1864 Maidanak, Uzbekistan (site 2) 041025 - 041025 1 1 1873 Simeiz, Crimea, Ukraine 041026 - 041026 1 1 6405 Concepcion, Chile (TIGO 847) 041030 - 041030 1 - 6810 Zimmerwald 846, Switzerland 041029 - 041030 5 4 7080 McDonald Obs., Fort Davis, TX 041029 - 041030 1 3 7090 Yarragadee, Australia 041025 - 041101 21 11 7105 Greenbelt, Maryland 041026 - 041101 3 2 7110 Monument Peak, California 041026 - 041031 4 4 7237 Changchun, China 041025 - 041028 5 4 7249 Beijing, China 041026 - 041026 1 1 7501 Hartebeesthoek, SA (MOB-6) 041026 - 041101 10 6 7806 Metsahovi, Finland 041028 - 041028 1 - 7810 Zimmerwald 423, Switzerland 041029 - 041030 5 4 7824 San Fernando, Spain 041026 - 041030 1 2 7825 Mount Stromlo, Australia 041025 - 041031 11 7 7832 Riyad, Saudi Arabia 041025 - 041101 17 18 7837 Shanghai Observatory, China 041026 - 041101 5 9 7838 Simosato Observatory, Japan 041005 - 041028 30 35 7839 Graz, Austria 041024 - 041027 17 13 7941 Matera, Italy (MLRO 532) 041025 - 041028 2 1 8834 Wettzell, Germany 041025 - 041101 11 9 ------ ------ --- --- TOTAL 041005 - 041101 155 139 ------------------------------------------------------------------------------ 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, Oct 23, 2004 to Sun, Oct 31, 2004. The measurement and dynamic models used in this analysis are close to the IERS Standard. The overall model is referred to as QLDACMOD11. The details of this model can be obtained on request. The terrestrial reference frame is provided by the ITRF2000 station coordinates solution (extended with coordinates of new stations, where necessary). The general statistics and results of this week´s analysis are thus: ----------------------------------------------------------------------- Satellite LAGEOS-1 LAGEOS-2 Number of Stations 22 21 Number of Passes 160/158 133/132 Number of Normal Points 1586/1577 1420/1413 Weighted RMS of Fit (mm) 15 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 1824 (Kiev) (position solved, acc. 200 mm) 1824 25 Oct 04 16:24 LAG2 5 0 145 676 +-1484 -450 +- 983 77 1824 25 Oct 04 20:17 LAG2 8 0 52 -21 +- 242 41 +- 361 45 Station 1831 (Lviv) (position fixed, acc. 400 mm) 1831 25 Oct 04 16:29 LAG1 11 0 115 13 +- 412 -100 +- 343 12 1831 27 Oct 04 16:35 LAG2 3 0 166 -638 +-4756 428 +-4125 1 1831 27 Oct 04 17:17 LAG1 9 0 80 36 +- 429 -87 +- 438 3 1831 28 Oct 04 18:28 LAG2 6 0 56 30 +- 675 89 +- 843 10 Station 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 25 Oct 04 16:13 LAG1 6 0 63 -66 +- 258 13 +- 211 12 1864 25 Oct 04 16:19 LAG2 7 0 73 -69 +- 305 3 +- 240 14 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 24 Oct 04 17:51 LAG1 5 1 11780 11543 +- 449 326 +- 467 135*CHK* 1873 26 Oct 04 18:09 LAG2 7 1 11802 11883 +- 567 78 +- 490 114*CHK* 1873 26 Oct 04 18:40 LAG1 3 0 11615 11593 +- 601 48 +-1072 13*CHK* Station 6405 (Concepcion) (position solved, acc. 20 mm) 6405 30 Oct 04 00:37 LAG1 6 0 2 0 +- 85 0 +- 71 2 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 23 Oct 04 08:51 LAG1 5 0 9 -4 +- 87 5 +- 88 7 6810 23 Oct 04 12:33 LAG1 2 0 30 -48 +- 636 25 +- 851 0 6810 23 Oct 04 19:05 LAG1 14 0 10 -1 +- 49 -4 +- 29 7 6810 23 Oct 04 19:43 LAG2 15 0 12 -11 +- 48 1 +- 33 5 6810 23 Oct 04 22:51 LAG1 1 0 19 0 +- 0 0 +- 0 0 6810 23 Oct 04 23:45 LAG2 11 0 13 -8 +- 63 0 +- 65 10 6810 24 Oct 04 07:25 LAG1 5 0 19 -15 +- 103 7 +- 143 3 6810 24 Oct 04 10:59 LAG1 13 0 19 -7 +- 55 -8 +- 33 9 6810 24 Oct 04 14:05 LAG2 7 0 14 0 +- 277 -7 +- 162 5 6810 24 Oct 04 14:25 LAG1 4 0 11 -6 +- 101 1 +- 75 9 6810 24 Oct 04 17:37 LAG2 18 0 24 -20 +- 44 -3 +- 24 7 6810 24 Oct 04 17:39 LAG1 6 0 16 -15 +- 77 -4 +- 34 3 6810 29 Oct 04 07:37 LAG1 18 0 13 -8 +- 47 -5 +- 32 3 6810 30 Oct 04 09:37 LAG1 18 0 20 -20 +- 44 0 +- 19 4 6810 30 Oct 04 10:28 LAG2 8 0 18 -17 +- 64 5 +- 82 2 6810 30 Oct 04 13:09 LAG1 21 0 18 -18 +- 39 1 +- 23 4 6810 30 Oct 04 14:39 LAG2 13 0 10 -2 +- 112 6 +- 62 4 6810 30 Oct 04 16:37 LAG1 15 0 14 11 +- 49 -1 +- 27 9 6810 30 Oct 04 18:31 LAG2 16 0 7 -5 +- 47 0 +- 31 5 6810 30 Oct 04 20:20 LAG1 8 0 9 7 +- 92 -8 +- 72 5 6810 30 Oct 04 22:29 LAG2 17 0 10 -7 +- 45 -5 +- 38 6 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 23 Oct 04 16:33 LAG1 7 0 7 2 +- 25 8 +- 34 0 7080 23 Oct 04 22:59 LAG2 16 0 9 -9 +- 17 2 +- 15 2 7080 29 Oct 04 01:47 LAG2 10 0 9 -1 +- 22 -6 +- 17 2 7080 29 Oct 04 02:43 LAG1 14 0 16 15 +- 17 -3 +- 10 2 7080 29 Oct 04 05:52 LAG2 17 0 10 -3 +- 16 6 +- 10 3 7080 30 Oct 04 21:49 LAG2 15 0 20 23 +- 21 -4 +- 17 3 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 23 Oct 04 14:22 LAG1 3 0 29 -48 +- 603 -7 +- 234 0 7090 23 Oct 04 17:06 LAG2 13 0 8 -3 +- 11 5 +- 10 3 7090 24 Oct 04 19:45 LAG2 4 0 17 20 +- 294 -19 +- 149 1 7090 25 Oct 04 03:49 LAG2 4 0 11 -13 +- 37 -3 +- 48 2 7090 25 Oct 04 11:37 LAG1 18 0 9 -7 +- 10 2 +- 8 2 7090 25 Oct 04 15:15 LAG1 19 0 10 -8 +- 9 4 +- 5 1 7090 25 Oct 04 17:09 LAG2 26 0 14 -11 +- 8 4 +- 5 2 7090 25 Oct 04 18:51 LAG1 7 0 8 -1 +- 32 11 +- 36 0 7090 25 Oct 04 21:23 LAG2 15 0 13 -11 +- 10 -3 +- 9 4 7090 25 Oct 04 22:05 LAG1 10 0 14 -19 +- 22 18 +- 17 3 7090 26 Oct 04 13:55 LAG1 18 0 20 -11 +- 11 -5 +- 5 3 7090 26 Oct 04 15:31 LAG2 12 0 2 -1 +- 13 2 +- 11 1 7090 26 Oct 04 17:27 LAG1 11 0 9 9 +- 13 -8 +- 16 1 7090 26 Oct 04 19:21 LAG2 17 0 13 4 +- 10 -7 +- 7 3 7090 27 Oct 04 00:16 LAG1 2 0 17 -22 +- 193 6 +- 241 0 7090 27 Oct 04 12:27 LAG1 11 0 17 -18 +- 13 -4 +- 8 2 7090 27 Oct 04 16:03 LAG1 13 0 11 -2 +- 11 -9 +- 9 3 7090 27 Oct 04 17:27 LAG2 22 0 9 -8 +- 8 1 +- 5 2 7090 27 Oct 04 19:33 LAG1 6 0 16 -19 +- 26 6 +- 39 3 7090 27 Oct 04 22:49 LAG1 5 0 31 -30 +- 18 12 +- 45 1 7090 28 Oct 04 11:11 LAG1 8 0 9 14 +- 26 10 +- 35 1 7090 28 Oct 04 14:34 LAG1 15 0 11 -6 +- 11 6 +- 5 3 7090 28 Oct 04 15:43 LAG2 14 0 7 -5 +- 11 -2 +- 9 2 7090 29 Oct 04 13:14 LAG1 10 0 23 -6 +- 13 -9 +- 5 2 7090 30 Oct 04 11:51 LAG1 10 0 24 -15 +- 14 7 +- 8 1 7090 30 Oct 04 15:35 LAG1 12 0 11 -11 +- 12 0 +- 11 2 7090 30 Oct 04 16:01 LAG2 18 0 5 -4 +- 13 3 +- 9 2 7090 30 Oct 04 19:09 LAG1 3 0 9 15 +- 158 -5 +- 154 0 7090 30 Oct 04 19:49 LAG2 24 0 8 -6 +- 8 -2 +- 5 0 7090 30 Oct 04 22:09 LAG1 15 0 19 -18 +- 11 9 +- 8 3 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 26 Oct 04 03:21 LAG1 5 0 18 -12 +- 53 7 +- 59 1 7105 26 Oct 04 03:31 LAG2 3 0 13 -7 +- 902 2 +- 420 0 7105 26 Oct 04 22:31 LAG1 13 0 14 5 +- 13 -11 +- 10 6 7105 27 Oct 04 01:57 LAG1 7 0 6 -5 +- 17 -1 +- 8 1 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 23 Oct 04 04:07 LAG1 10 0 8 -8 +- 30 6 +- 13 3 7110 23 Oct 04 05:09 LAG2 8 0 11 -15 +- 26 -6 +- 30 1 7110 26 Oct 04 03:21 LAG2 2 0 18 -49 +-1064 -21 +- 717 0 7110 26 Oct 04 03:55 LAG1 4 0 12 -149 +- 589 57 +- 211 1 7110 26 Oct 04 07:39 LAG2 6 0 30 -32 +- 18 10 +- 15 3 7110 30 Oct 04 03:57 LAG2 3 0 21 43 +- 192 65 +- 199 0 7110 30 Oct 04 04:52 LAG1 4 0 2 19 +- 231 9 +- 105 1 7110 30 Oct 04 07:57 LAG2 12 0 4 0 +- 12 0 +- 10 4 7110 30 Oct 04 17:30 LAG1 7 0 11 7 +- 28 -2 +- 23 6 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 24 Oct 04 13:55 LAG1 5 0 17 15 +- 77 0 +- 184 7 7237 24 Oct 04 14:39 LAG2 6 0 23 21 +- 94 -2 +- 144 6 7237 25 Oct 04 12:21 LAG1 6 0 27 1 +- 68 15 +- 39 4 7237 26 Oct 04 10:41 LAG2 13 0 17 8 +- 44 -11 +- 30 5 7237 26 Oct 04 11:05 LAG1 11 0 32 13 +- 49 14 +- 29 7 7237 27 Oct 04 09:35 LAG1 17 0 20 11 +- 38 7 +- 22 6 7237 27 Oct 04 13:09 LAG2 3 0 21 36 +- 295 -36 +- 636 0 7237 27 Oct 04 13:13 LAG1 4 0 16 12 +- 463 0 +- 352 10 7237 28 Oct 04 11:02 LAG2 10 0 28 28 +- 56 -4 +- 56 8 7237 28 Oct 04 11:46 LAG1 4 0 33 18 +- 79 17 +- 50 17 7237 28 Oct 04 15:20 LAG2 2 0 18 61 +- 799 -47 +- 861 0 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 26 Oct 04 10:39 LAG2 12 0 15 -4 +- 44 -2 +- 58 15 7249 26 Oct 04 11:15 LAG1 8 0 12 14 +- 113 -5 +- 80 9 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 26 Oct 04 18:01 LAG1 7 0 6 8 +- 21 -6 +- 30 2 7501 26 Oct 04 22:56 LAG2 15 0 11 10 +- 10 5 +- 9 2 7501 28 Oct 04 06:19 LAG1 8 0 30 33 +- 49 -1 +- 25 1 7501 28 Oct 04 09:45 LAG2 2 0 3 9 +- 236 15 +- 299 0 7501 28 Oct 04 18:40 LAG1 6 0 16 22 +- 39 6 +- 34 5 7501 28 Oct 04 22:05 LAG1 14 0 12 5 +- 11 11 +- 10 2 7501 28 Oct 04 23:13 LAG2 11 0 5 5 +- 13 0 +- 15 1 7501 29 Oct 04 04:47 LAG1 8 0 18 17 +- 14 -6 +- 20 1 7501 29 Oct 04 17:19 LAG1 5 0 11 7 +- 56 -4 +- 68 1 7501 29 Oct 04 20:43 LAG1 16 0 13 9 +- 10 -5 +- 6 2 7501 29 Oct 04 21:25 LAG2 4 0 5 7 +- 64 19 +- 107 2 Station 7806 (Metsahovi) (position fixed, acc. 30 mm) 7806 28 Oct 04 16:09 LAG1 8 0 11 -35 +- 111 15 +- 54 3 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 23 Oct 04 08:56 LAG1 3 0 14 9 +- 142 6 +- 153 1 7810 23 Oct 04 12:21 LAG1 5 0 22 -16 +- 108 5 +- 111 8 7810 23 Oct 04 19:05 LAG1 13 0 11 7 +- 50 -3 +- 25 6 7810 23 Oct 04 19:51 LAG2 6 0 11 2 +- 74 -9 +- 62 3 7810 23 Oct 04 22:50 LAG1 1 0 2 0 +- 0 0 +- 0 0 7810 23 Oct 04 23:49 LAG2 12 0 12 11 +- 53 1 +- 71 3 7810 24 Oct 04 07:25 LAG1 6 0 5 0 +- 80 6 +- 118 2 7810 24 Oct 04 10:59 LAG1 12 0 12 6 +- 59 -7 +- 36 6 7810 24 Oct 04 14:11 LAG2 3 0 6 -86 +-1569 47 +- 849 1 7810 24 Oct 04 14:30 LAG1 9 0 9 9 +- 75 -8 +- 75 5 7810 24 Oct 04 17:38 LAG1 3 0 16 0 +- 113 -7 +- 49 3 7810 24 Oct 04 17:57 LAG2 5 0 9 7 +- 105 -6 +- 59 2 7810 29 Oct 04 07:37 LAG1 17 0 9 8 +- 47 -5 +- 34 2 7810 30 Oct 04 09:37 LAG1 15 0 7 -5 +- 53 0 +- 23 5 7810 30 Oct 04 10:29 LAG2 8 0 8 -5 +- 64 7 +- 82 3 7810 30 Oct 04 13:09 LAG1 20 0 8 -6 +- 41 2 +- 25 4 7810 30 Oct 04 14:39 LAG2 12 0 22 13 +- 112 5 +- 65 2 7810 30 Oct 04 16:31 LAG1 19 0 21 19 +- 42 0 +- 21 7 7810 30 Oct 04 18:34 LAG2 10 0 7 7 +- 70 -3 +- 40 3 7810 30 Oct 04 20:21 LAG1 6 0 10 3 +- 136 0 +- 85 10 7810 30 Oct 04 22:31 LAG2 16 0 10 7 +- 47 -5 +- 34 3 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 26 Oct 04 22:20 LAG1 7 0 70 88 +- 110 -17 +- 91 1 7824 30 Oct 04 00:25 LAG2 12 0 62 67 +- 52 6 +- 51 3 7824 30 Oct 04 22:41 LAG2 4 0 102 113 +- 243 11 +- 260 4 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 23 Oct 04 10:37 LAG1 23 0 6 -5 +- 8 -1 +- 5 2 7825 24 Oct 04 09:19 LAG1 17 0 4 -2 +- 10 3 +- 9 2 7825 24 Oct 04 12:47 LAG1 24 0 14 2 +- 8 -7 +- 4 2 7825 25 Oct 04 11:25 LAG1 24 0 14 -6 +- 8 6 +- 4 5 7825 25 Oct 04 13:31 LAG2 17 0 9 6 +- 11 7 +- 11 6 7825 25 Oct 04 15:05 LAG1 8 0 8 3 +- 14 7 +- 16 3 7825 26 Oct 04 10:05 LAG1 18 0 12 3 +- 10 4 +- 6 8 7825 28 Oct 04 10:53 LAG1 15 0 11 12 +- 13 8 +- 8 3 7825 29 Oct 04 00:11 LAG2 5 0 16 -21 +- 193 -18 +- 93 0 7825 29 Oct 04 09:31 LAG1 21 0 11 3 +- 9 -8 +- 6 2 7825 30 Oct 04 02:20 LAG2 1 0 18 0 +- 0 0 +- 0 0 7825 30 Oct 04 11:39 LAG1 25 0 11 -3 +- 8 5 +- 4 3 7825 30 Oct 04 15:13 LAG1 16 0 3 2 +- 10 0 +- 8 2 7825 30 Oct 04 15:59 LAG2 26 0 4 2 +- 8 2 +- 4 2 7825 30 Oct 04 18:29 LAG1 18 0 7 5 +- 9 -3 +- 7 1 7825 30 Oct 04 20:11 LAG2 21 0 5 -4 +- 9 -4 +- 7 1 7825 30 Oct 04 21:49 LAG1 13 0 9 -1 +- 12 -2 +- 4 5 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 23 Oct 04 05:15 LAG1 6 0 8 3 +- 62 8 +- 48 2 7832 23 Oct 04 08:53 LAG1 11 0 14 -17 +- 24 11 +- 22 2 7832 23 Oct 04 11:59 LAG2 8 0 6 -21 +- 92 13 +- 56 3 7832 23 Oct 04 15:11 LAG1 14 0 5 -3 +- 24 1 +- 16 2 7832 23 Oct 04 15:51 LAG2 8 0 10 -20 +- 93 -10 +- 81 2 7832 23 Oct 04 20:07 LAG2 7 0 4 -11 +- 121 -8 +- 73 2 7832 24 Oct 04 07:45 LAG1 5 0 6 0 +- 132 3 +- 75 2 7832 24 Oct 04 10:11 LAG2 5 0 8 -9 +- 282 0 +- 139 1 7832 24 Oct 04 13:53 LAG2 6 0 6 -14 +- 79 -11 +- 90 2 7832 24 Oct 04 14:05 LAG1 7 0 23 21 +- 25 -8 +- 34 3 7832 24 Oct 04 17:17 LAG1 6 0 25 -14 +- 87 -17 +- 40 6 7832 24 Oct 04 18:07 LAG2 7 0 7 0 +- 25 -3 +- 12 2 7832 24 Oct 04 22:17 LAG2 11 0 11 -8 +- 20 -6 +- 22 2 7832 25 Oct 04 06:05 LAG1 10 0 9 2 +- 22 6 +- 17 5 7832 25 Oct 04 12:01 LAG2 13 0 6 -7 +- 23 5 +- 21 3 7832 25 Oct 04 15:59 LAG1 8 0 19 -21 +- 81 -1 +- 43 1 7832 25 Oct 04 16:15 LAG2 9 0 14 -13 +- 34 2 +- 53 2 7832 25 Oct 04 19:47 LAG1 8 0 25 16 +- 34 14 +- 48 2 7832 25 Oct 04 20:29 LAG2 11 0 8 4 +- 20 6 +- 20 3 7832 26 Oct 04 04:42 LAG1 6 0 11 11 +- 29 7 +- 24 0 7832 26 Oct 04 08:19 LAG1 11 0 7 -1 +- 22 6 +- 20 2 7832 26 Oct 04 14:03 LAG2 7 0 8 -8 +- 110 0 +- 91 2 7832 26 Oct 04 14:47 LAG1 7 0 17 8 +- 43 -9 +- 46 2 7832 26 Oct 04 18:23 LAG1 3 0 19 16 +- 50 -12 +- 142 0 7832 26 Oct 04 19:07 LAG2 2 0 21 -200 +-2369 84 +-1118 0 7832 26 Oct 04 22:31 LAG2 10 0 12 6 +- 32 -8 +- 43 3 7832 27 Oct 04 06:55 LAG1 7 0 7 -6 +- 28 1 +- 24 0 7832 27 Oct 04 12:05 LAG2 14 0 10 2 +- 19 10 +- 19 3 7832 27 Oct 04 13:36 LAG1 6 1 30 29 +- 30 0 +- 82 6 7832 27 Oct 04 16:21 LAG2 9 0 16 13 +- 89 -1 +- 68 3 7832 27 Oct 04 16:47 LAG1 6 0 8 -18 +- 150 -4 +- 72 0 7832 29 Oct 04 20:53 LAG2 11 0 8 9 +- 24 10 +- 27 1 7832 30 Oct 04 06:17 LAG1 6 0 7 0 +- 49 -4 +- 32 2 7832 30 Oct 04 10:43 LAG2 11 0 10 -1 +- 60 6 +- 34 4 7832 30 Oct 04 14:35 LAG2 7 0 15 -13 +- 118 2 +- 101 1 7832 30 Oct 04 16:11 LAG1 11 0 3 6 +- 43 3 +- 24 2 7832 30 Oct 04 18:59 LAG2 10 0 8 -9 +- 30 -1 +- 31 1 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 23 Oct 04 11:41 LAG1 11 0 12 -3 +- 80 4 +- 49 11 7837 23 Oct 04 12:29 LAG2 21 0 11 8 +- 38 0 +- 30 8 7837 23 Oct 04 15:19 LAG1 3 0 12 12 +- 367 0 +- 719 0 7837 23 Oct 04 16:31 LAG2 22 0 39 36 +- 34 -10 +- 26 20 7837 24 Oct 04 10:37 LAG2 14 0 24 25 +- 71 -1 +- 63 7 7837 24 Oct 04 13:41 LAG1 12 0 10 0 +- 44 -8 +- 43 5 7837 24 Oct 04 15:09 LAG2 6 0 12 2 +- 693 4 +- 327 5 7837 26 Oct 04 14:50 LAG2 5 0 26 16 +- 243 -6 +- 174 8 7837 27 Oct 04 12:57 LAG2 9 0 31 12 +- 87 40 +- 93 14 7837 27 Oct 04 17:01 LAG2 15 0 50 42 +- 43 6 +- 44 21 7837 28 Oct 04 11:01 LAG2 15 0 25 12 +- 43 19 +- 49 7 7837 28 Oct 04 11:43 LAG1 7 0 54 -79 +- 137 -58 +- 98 41 7837 28 Oct 04 15:07 LAG2 7 0 14 21 +- 139 15 +- 131 11 7837 29 Oct 04 10:23 LAG1 16 0 19 11 +- 39 -12 +- 27 6 7837 30 Oct 04 11:11 LAG2 19 0 27 12 +- 35 9 +- 33 21 7837 30 Oct 04 12:29 LAG1 10 0 14 0 +- 53 0 +- 31 14 7837 30 Oct 04 15:19 LAG2 12 0 50 39 +- 51 -5 +- 55 27 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 23 Oct 04 08:01 LAG1 12 0 29 29 +- 28 2 +- 29 5 7838 23 Oct 04 08:33 LAG2 12 0 33 49 +- 62 -13 +- 41 7 7838 23 Oct 04 11:15 LAG1 26 0 37 35 +- 18 4 +- 9 9 7838 23 Oct 04 12:21 LAG2 29 0 41 40 +- 17 2 +- 10 6 7838 23 Oct 04 16:29 LAG2 20 0 21 18 +- 21 -8 +- 21 4 7838 24 Oct 04 13:37 LAG1 17 0 10 3 +- 23 -9 +- 22 4 7838 24 Oct 04 14:31 LAG2 27 0 34 33 +- 18 3 +- 11 4 7838 25 Oct 04 02:00 LAG1 16 0 35 22 +- 24 -15 +- 15 6 7838 25 Oct 04 04:33 LAG2 17 0 39 44 +- 35 -4 +- 21 5 7838 27 Oct 04 02:45 LAG1 10 0 29 24 +- 30 -6 +- 15 5 7838 28 Oct 04 01:31 LAG1 19 0 10 4 +- 23 0 +- 13 9 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 23 Oct 04 11:51 LAG2 4 0 15 14 +- 21 -6 +- 28 1 7839 23 Oct 04 12:15 LAG1 13 0 14 -10 +- 12 9 +- 8 1 7839 23 Oct 04 15:27 LAG1 13 0 13 -6 +- 11 5 +- 5 1 7839 23 Oct 04 15:31 LAG2 14 0 7 5 +- 11 2 +- 6 1 7839 23 Oct 04 19:31 LAG1 3 0 2 -1 +- 288 2 +- 144 0 7839 24 Oct 04 07:41 LAG1 6 0 10 10 +- 68 0 +- 37 0 7839 24 Oct 04 10:03 LAG2 8 0 9 -5 +- 17 -10 +- 37 0 7839 24 Oct 04 10:45 LAG1 14 0 13 1 +- 11 -7 +- 6 3 7839 24 Oct 04 13:45 LAG2 11 0 4 -2 +- 12 1 +- 7 2 7839 24 Oct 04 14:09 LAG1 9 0 21 10 +- 14 -9 +- 6 3 7839 24 Oct 04 17:33 LAG1 10 0 19 3 +- 15 -8 +- 7 2 7839 24 Oct 04 17:35 LAG2 15 0 7 0 +- 12 -3 +- 6 1 7839 24 Oct 04 21:09 LAG1 12 0 13 0 +- 15 -7 +- 9 4 7839 24 Oct 04 22:01 LAG2 20 0 15 -2 +- 12 -8 +- 7 0 7839 25 Oct 04 05:51 LAG1 11 0 19 17 +- 12 11 +- 13 2 7839 25 Oct 04 09:21 LAG1 18 0 15 4 +- 10 6 +- 5 7 7839 25 Oct 04 11:57 LAG2 19 0 8 2 +- 11 4 +- 8 2 7839 25 Oct 04 12:57 LAG1 14 0 10 8 +- 11 6 +- 8 1 7839 25 Oct 04 15:47 LAG2 9 0 16 1 +- 14 9 +- 8 1 7839 25 Oct 04 16:13 LAG1 12 0 23 3 +- 12 9 +- 5 3 7839 25 Oct 04 19:44 LAG1 8 0 17 0 +- 14 8 +- 7 2 7839 25 Oct 04 19:49 LAG2 14 0 12 3 +- 11 4 +- 5 1 7839 25 Oct 04 23:54 LAG2 3 0 11 -8 +- 137 1 +- 96 0 7839 26 Oct 04 11:51 LAG1 14 0 8 11 +- 19 -7 +- 10 1 7839 26 Oct 04 14:17 LAG2 13 0 3 -5 +- 32 1 +- 17 0 7839 26 Oct 04 14:59 LAG1 15 0 17 11 +- 10 -8 +- 5 3 7839 26 Oct 04 17:53 LAG2 20 0 12 0 +- 9 -6 +- 5 1 7839 26 Oct 04 18:18 LAG1 9 0 22 5 +- 15 -10 +- 8 2 7839 26 Oct 04 21:57 LAG2 11 0 8 0 +- 13 -4 +- 6 2 7839 26 Oct 04 22:11 LAG1 7 0 16 10 +- 16 -12 +- 20 0 7839 27 Oct 04 06:57 LAG1 2 0 22 22 +- 40 5 +- 499 0 7839 27 Oct 04 15:59 LAG2 20 0 16 8 +- 9 9 +- 5 1 7839 27 Oct 04 17:07 LAG1 22 0 5 -3 +- 9 1 +- 4 3 7839 27 Oct 04 20:01 LAG2 3 0 2 2 +- 24 0 +- 13 1 7839 27 Oct 04 20:37 LAG1 6 0 4 3 +- 18 0 +- 9 1 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 23 Oct 04 08:39 LAG1 6 0 3 -6 +- 52 -2 +- 26 1 7941 23 Oct 04 11:53 LAG2 6 0 7 6 +- 38 -11 +- 44 5 7941 23 Oct 04 15:51 LAG2 17 0 4 6 +- 18 -2 +- 11 2 7941 24 Oct 04 11:01 LAG1 16 0 20 15 +- 13 -15 +- 7 4 7941 25 Oct 04 09:27 LAG1 12 0 5 4 +- 24 3 +- 12 3 7941 28 Oct 04 10:35 LAG2 6 0 8 -24 +- 86 12 +- 63 1 7941 28 Oct 04 12:23 LAG1 8 0 13 3 +- 45 10 +- 29 2 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 23 Oct 04 11:43 LAG2 5 0 6 0 +- 75 5 +- 68 0 8834 23 Oct 04 12:21 LAG1 4 0 27 -17 +- 38 15 +- 53 2 8834 23 Oct 04 15:41 LAG1 3 0 31 -65 +- 233 -22 +- 155 1 8834 23 Oct 04 15:49 LAG2 10 0 8 -9 +- 15 1 +- 17 1 8834 23 Oct 04 19:45 LAG2 13 0 9 2 +- 12 6 +- 11 7 8834 23 Oct 04 23:15 LAG1 2 0 35 -35 +- 561 0 +- 590 0 8834 23 Oct 04 23:47 LAG2 10 0 8 -3 +- 13 -6 +- 13 3 8834 24 Oct 04 07:35 LAG1 9 0 11 -16 +- 35 4 +- 24 3 8834 24 Oct 04 10:59 LAG1 15 0 21 -7 +- 13 -8 +- 8 8 8834 24 Oct 04 13:55 LAG2 11 0 16 -18 +- 16 4 +- 14 3 8834 24 Oct 04 14:41 LAG1 6 0 25 -8 +- 91 -8 +- 46 2 8834 24 Oct 04 17:41 LAG1 7 0 8 0 +- 70 -3 +- 34 2 8834 24 Oct 04 17:55 LAG2 20 0 21 -16 +- 11 -4 +- 7 1 8834 24 Oct 04 21:11 LAG1 10 0 12 -16 +- 20 -10 +- 13 4 8834 24 Oct 04 21:59 LAG2 10 0 25 -19 +- 14 -7 +- 9 3 8834 25 Oct 04 05:59 LAG1 5 0 2 1 +- 29 4 +- 82 2 8834 25 Oct 04 09:33 LAG1 4 0 22 -13 +- 105 5 +- 65 4 8834 25 Oct 04 13:01 LAG1 7 0 13 -4 +- 21 8 +- 17 2 8834 25 Oct 04 15:49 LAG2 15 0 19 -4 +- 13 13 +- 10 4 8834 25 Oct 04 16:23 LAG1 7 0 26 -10 +- 36 9 +- 22 5 8834 27 Oct 04 17:15 LAG1 2 0 21 -59 +- 581 -22 +- 344 0 8834 27 Oct 04 20:05 LAG2 9 0 11 -12 +- 16 -1 +- 9 2 8834 28 Oct 04 16:01 LAG1 2 0 15 18 +- 271 54 +- 432 0 8834 28 Oct 04 19:53 LAG1 6 0 11 -30 +- 278 7 +- 106 3 8834 28 Oct 04 22:09 LAG2 14 0 15 -14 +- 13 -10 +- 9 6 8834 29 Oct 04 07:30 LAG1 2 0 21 -626 +- 876 -317 +- 442 0 8834 29 Oct 04 11:07 LAG1 9 0 14 -20 +- 20 -6 +- 16 2 8834 29 Oct 04 12:35 LAG2 1 0 19 0 +- 0 0 +- 0 0 8834 30 Oct 04 00:39 LAG2 8 0 18 -23 +- 38 6 +- 49 3 8834 30 Oct 04 14:29 LAG2 4 0 21 -16 +- 47 5 +- 41 0 8834 30 Oct 04 18:31 LAG2 17 0 8 -7 +- 10 0 +- 6 3 8834 30 Oct 04 20:15 LAG1 7 0 15 -15 +- 16 -3 +- 13 2 8834 30 Oct 04 22:43 LAG2 6 0 11 -10 +- 17 -9 +- 48 4 -------------------------------------------------------------------------------- Distribution of daytime, nighttime and twilight passes since Jan 1, 2003: -------------------------------------------------------------------------- Station System Period Number of Passes LAGEOS-1 LAGEOS-2 Day/Night/Twil. Day/Night/Twil. Total -------------------------------------------------------------------------- 1824 KIEVLA 040314 - 041025 0/ 25/ 0 0/ 18/ 0 43 1831 LVIL 040815 - 041028 0/ 18/ 0 0/ 23/ 0 41 1863 MDNLAS 040103 - 040117 0/ 2/ 0 0/ 4/ 0 6 1864 MD2LAS 040102 - 041025 0/155/ 0 0/ 82/ 0 237 1868 KOMLAS 040315 - 040614 0/ 15/ 0 0/ 3/ 0 18 1873 SIMLAS 040118 - 041026 0/ 35/ 0 0/ 16/ 0 51 1884 RIGLAS 040310 - 041014 0/ 73/ 1 0/ 17/ 0 91 1893 CRMLAS 040331 - 041012 0/ 63/ 0 0/ 41/ 0 104 6405 TIGO 040103 - 041030 3/ 16/ 2 3/ 4/ 0 28 6810 ZIMLAT 040107 - 041030 176/210/ 30 141/139/ 17 713 7080 MLRS25 040104 - 041030 60/ 93/ 12 69/ 94/ 7 335 7090 ML0514 040101 - 041101 219/315/ 46 183/311/ 36 1110 7105 ML0725 040104 - 041101 20/103/ 9 5/100/ 9 246 7110 ML0414 040102 - 041031 106/224/ 20 114/160/ 22 646 7124 ML0819 040315 - 041002 0/ 33/ 0 0/ 16/ 0 49 7210 HOLLAS 040105 - 040607 33/ 49/ 3 50/ 52/ 6 193 7231 WUHA01 040408 - 041002 0/ 4/ 0 0/ 12/ 0 16 7237 CHALAS 040101 - 041028 0/338/ 6 0/230/ 2 576 7249 BEJLAS 040101 - 041026 0/221/ 1 0/186/ 0 408 7308 CRLLAS 040106 - 040311 5/ 47/ 0 0/ 38/ 2 92 7355 TROS02 040509 - 040829 0/ 82/ 0 0/ 34/ 0 116 7358 GMSL 040901 - 040901 0/ 1/ 0 0/ 1/ 0 2 7405 TIGO 040103 - 040823 0/ 12/ 2 0/ 4/ 0 18 7501 ML0616 040106 - 041101 56/ 57/ 18 87/142/ 14 374 7604 BREF 041017 - 041021 0/ 1/ 0 0/ 2/ 0 3 7806 METLAS 040720 - 041028 0/ 10/ 0 0/ 8/ 0 18 7810 ZIMLAT 040507 - 041030 192/126/ 26 125/ 86/ 18 573 7811 POLLAS 040105 - 041022 0/119/ 0 0/ 71/ 0 190 7823 FTLR** 040612 - 040626 0/ 9/ 0 1/ 1/ 1 12 7824 SPNLAS 040109 - 041030 0/133/ 0 0/101/ 1 235 7825 STL3 040807 - 041031 22/ 32/ 4 42/ 12/ 3 115 7830 FTLR** 030903 - 030903 0/ 0/ 0 0/ 1/ 0 1 7832 SALRO 040102 - 041101 147/322/ 26 207/315/ 40 1057 7835 GRASSE 040301 - 041013 1/ 69/ 3 0/ 39/ 1 113 7836 GFZLAS 040105 - 040701 0/ 38/ 0 0/ 21/ 1 60 7837 CHILAS 040102 - 041101 0/ 93/ 0 0/116/ 1 210 7838 SHOLAS 040105 - 041028 34/208/ 3 56/175/ 9 485 7839 AUSLAS 040107 - 041027 140/210/ 32 83/158/ 20 643 7840 RGOLAS 040102 - 040912 132/221/ 39 111/126/ 19 648 7841 GFZLA3 040112 - 041022 26/104/ 16 16/ 73/ 10 245 7845 GRASLL 040318 - 040920 13/ 27/ 0 11/ 14/ 1 66 7941 MLROnn 040111 - 041028 106/141/ 22 105/103/ 9 486 8834 WLRS01 040108 - 041101 237/214/ 44 183/168/ 22 868 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 041024.0 205.1 +/- 0.1 378.5 +/- 0.1 -32521.07 +/- 0.01 041025.0 205.4 +/- 0.1 376.9 +/- 0.1 -32521.92 +/- 0.02 041026.0 205.4 +/- 0.1 374.8 +/- 0.1 -32522.85 +/- 0.03 041027.0 205.8 +/- 0.1 373.0 +/- 0.1 -32523.77 +/- 0.03 041028.0 207.4 +/- 0.1 369.7 +/- 0.1 -32524.64 +/- 0.04 041029.0 207.4 +/- 0.1 368.0 +/- 0.1 -32525.35 +/- 0.05 041030.0 207.9 +/- 0.1 366.1 +/- 0.1 -32525.79 +/- 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, 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 ******************************************************************************** |