| Date: | 2006-05-16 17:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 7126: Delft QL Report May 03, 2006 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2006-05-16 17:15:00 UTC Message No. 7126 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report May 03, 2006 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS May 3, 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 Wed, May 3, 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 Wed, May 3, 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 ------------------------------------------------------------------------------ 1864 Maidanak, Uzbekistan (site 2) 060430 - 060502 2 2 1873 Simeiz, Crimea, Ukraine 060501 - 060503 1 1 6810 Zimmerwald 846, Switzerland 060430 - 060503 8 6 7080 McDonald Obs., Fort Davis, TX 060502 - 060502 1 1 7090 Yarragadee, Australia 060501 - 060502 5 4 7105 Greenbelt, Maryland 060502 - 060502 - 1 7110 Monument Peak, California 060501 - 060502 3 1 7249 Beijing, China 060501 - 060502 2 - 7308 Tokyo, Japan 060501 - 060501 1 - 7406 San Juan, Argentina 060430 - 060502 4 4 7810 Zimmerwald 423, Switzerland 060430 - 060503 8 5 7821 Shanghai Observatory, China 060502 - 060502 - 1 7824 San Fernando, Spain 060430 - 060501 2 - 7825 Mount Stromlo, Australia 060430 - 060501 2 2 7832 Riyad, Saudi Arabia 060429 - 060501 3 3 7839 Graz, Austria 060501 - 060501 1 - 7840 Herstmonceux, United Kingdom 060501 - 060503 6 3 7841 Potsdam, Germany 060430 - 060503 1 2 7941 Matera, Italy (MLRO 532) 060501 - 060503 2 1 8834 Wettzell, Germany 060430 - 060503 2 6 ------ ------ --- --- TOTAL 060429 - 060503 54 43 ------------------------------------------------------------------------------ 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 Tue, Apr 25, 2006 to Wed, May 3, 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 23 19 Number of Passes 150/149 123/122 Number of Normal Points 1580/1573 1547/1528 Weighted RMS of Fit (mm) 18 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 25 Apr 06 15:27 LAG1 9 0 26 7 +- 512 15 +- 282 15 1864 26 Apr 06 17:41 LAG1 8 0 80 -88 +- 259 -20 +- 212 24 1864 27 Apr 06 16:19 LAG1 8 0 51 -47 +- 212 3 +- 114 19 1864 30 Apr 06 20:13 LAG2 8 0 60 -41 +- 271 17 +- 316 31 1864 1 May 06 17:59 LAG1 10 0 77 -75 +- 190 -3 +- 185 17 1864 1 May 06 22:25 LAG2 6 0 32 -29 +- 249 7 +- 319 9 1864 2 May 06 16:37 LAG1 7 0 47 -42 +- 228 5 +- 177 20 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 27 Apr 06 20:21 LAG1 7 0 67 1 +- 653 47 +- 529 31 1873 1 May 06 18:21 LAG1 9 0 128 177 +- 451 -36 +- 267 26 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 25 Apr 06 23:01 LAG1 3 0 8 -6 +- 989 -12 +- 951 4 6810 29 Apr 06 21:33 LAG1 4 0 55 63 +-2800 -46 +-1090 1 6810 30 Apr 06 01:35 LAG2 27 0 6 0 +- 35 3 +- 21 2 6810 30 Apr 06 05:41 LAG2 24 0 16 2 +- 40 11 +- 26 3 6810 30 Apr 06 08:58 LAG1 14 0 51 9 +- 50 25 +- 24 7 6810 30 Apr 06 09:57 LAG2 2 0 23 29 +- 204 24 +- 134 0 6810 30 Apr 06 12:36 LAG1 9 0 28 -17 +- 62 9 +- 30 2 6810 30 Apr 06 19:27 LAG1 21 0 25 -9 +- 40 -10 +- 18 5 6810 1 May 06 00:15 LAG2 2 0 18 -15 +- 276 -19 +-1545 0 6810 1 May 06 03:43 LAG2 24 0 15 5 +- 37 9 +- 23 2 6810 1 May 06 07:39 LAG1 7 0 24 48 +- 443 12 +- 236 2 6810 1 May 06 07:59 LAG2 11 0 31 34 +- 134 2 +- 84 3 6810 2 May 06 09:49 LAG1 17 0 18 16 +- 44 3 +- 21 4 6810 2 May 06 10:21 LAG2 7 0 19 18 +- 71 1 +- 49 7 6810 2 May 06 13:27 LAG1 9 0 32 -4 +- 81 19 +- 54 3 6810 2 May 06 16:53 LAG1 18 0 7 -2 +- 44 4 +- 26 3 6810 2 May 06 20:17 LAG1 21 0 14 10 +- 40 -4 +- 23 4 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 2 May 06 05:29 LAG1 7 0 28 -10 +- 107 -11 +- 66 1 7080 2 May 06 09:14 LAG2 14 0 12 2 +- 17 9 +- 13 4 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 25 Apr 06 04:47 LAG2 3 0 6 -8 +- 131 -5 +- 111 6 7090 25 Apr 06 21:35 LAG1 2 0 2 1 +- 56 30 +- 534 0 7090 26 Apr 06 00:41 LAG1 19 0 13 -8 +- 9 5 +- 5 3 7090 26 Apr 06 10:51 LAG2 27 0 10 -5 +- 8 -5 +- 6 2 7090 26 Apr 06 13:37 LAG1 4 0 32 -26 +- 50 -8 +- 64 0 7090 26 Apr 06 15:07 LAG2 22 0 7 3 +- 8 3 +- 4 3 7090 26 Apr 06 16:47 LAG1 14 0 30 25 +- 11 -17 +- 7 4 7090 26 Apr 06 19:27 LAG2 12 0 15 -6 +- 17 -14 +- 24 2 7090 26 Apr 06 20:25 LAG1 4 0 22 -5 +- 80 -20 +- 96 1 7090 26 Apr 06 23:25 LAG1 16 0 18 -17 +- 10 -4 +- 7 2 7090 27 Apr 06 02:54 LAG1 17 0 22 -17 +- 10 12 +- 7 4 7090 27 Apr 06 04:55 LAG2 13 0 8 1 +- 14 7 +- 13 1 7090 27 Apr 06 09:05 LAG2 18 0 21 14 +- 11 -18 +- 8 1 7090 27 Apr 06 11:55 LAG1 19 0 23 -21 +- 9 9 +- 8 4 7090 27 Apr 06 13:07 LAG2 25 0 24 -4 +- 8 -14 +- 5 2 7090 27 Apr 06 15:29 LAG1 18 0 18 8 +- 9 8 +- 5 2 7090 27 Apr 06 17:17 LAG2 23 0 6 3 +- 8 -3 +- 6 1 7090 27 Apr 06 18:57 LAG1 11 0 8 4 +- 12 7 +- 17 3 7090 27 Apr 06 22:03 LAG1 13 0 14 -11 +- 15 3 +- 12 2 7090 28 Apr 06 01:25 LAG1 17 0 11 -10 +- 11 0 +- 6 3 7090 28 Apr 06 07:15 LAG2 14 0 26 2 +- 17 15 +- 11 2 7090 28 Apr 06 11:21 LAG2 14 0 24 -11 +- 12 21 +- 9 2 7090 28 Apr 06 14:05 LAG1 16 0 22 -10 +- 10 -7 +- 4 4 7090 28 Apr 06 15:29 LAG2 24 0 11 3 +- 9 6 +- 5 1 7090 28 Apr 06 17:38 LAG1 4 0 41 24 +- 89 -15 +- 83 0 7090 29 Apr 06 00:05 LAG1 17 0 18 -16 +- 11 -9 +- 6 3 7090 29 Apr 06 03:51 LAG1 11 0 20 -20 +- 12 8 +- 20 3 7090 29 Apr 06 05:17 LAG2 10 0 19 18 +- 13 -3 +- 17 1 7090 29 Apr 06 09:31 LAG2 11 0 17 20 +- 28 -25 +- 21 1 7090 29 Apr 06 12:41 LAG1 18 0 9 -4 +- 10 4 +- 5 2 7090 29 Apr 06 13:27 LAG2 22 0 10 0 +- 8 -6 +- 5 1 7090 29 Apr 06 16:13 LAG1 20 0 4 -3 +- 9 -1 +- 5 1 7090 29 Apr 06 17:29 LAG2 7 0 3 -1 +- 59 -2 +- 36 1 7090 30 Apr 06 07:21 LAG2 21 0 13 0 +- 10 7 +- 6 2 7090 30 Apr 06 11:27 LAG1 8 0 11 -10 +- 14 -1 +- 16 1 7090 30 Apr 06 11:51 LAG2 13 0 14 -9 +- 30 15 +- 21 2 7090 30 Apr 06 14:53 LAG1 15 0 11 -9 +- 11 0 +- 5 4 7090 30 Apr 06 15:37 LAG2 25 0 13 -4 +- 8 7 +- 4 1 7090 30 Apr 06 18:27 LAG1 11 0 16 16 +- 13 -5 +- 17 4 7090 30 Apr 06 21:35 LAG1 17 0 7 -2 +- 10 -3 +- 8 5 7090 1 May 06 01:05 LAG1 4 0 8 -7 +- 84 0 +- 68 2 7090 1 May 06 05:31 LAG2 14 0 10 11 +- 14 -3 +- 9 4 7090 1 May 06 09:25 LAG2 19 0 23 15 +- 9 -12 +- 8 1 7090 1 May 06 13:27 LAG1 15 0 25 -26 +- 11 -3 +- 7 5 7090 1 May 06 14:01 LAG2 11 0 15 -6 +- 18 -8 +- 14 1 7090 1 May 06 17:05 LAG1 13 0 5 -1 +- 11 -3 +- 9 1 7090 1 May 06 17:49 LAG2 18 0 11 6 +- 10 -8 +- 8 2 7090 1 May 06 20:23 LAG1 12 0 6 -5 +- 12 -1 +- 15 2 7090 1 May 06 23:31 LAG1 20 0 13 -11 +- 9 2 +- 4 2 7090 2 May 06 03:23 LAG1 10 0 23 -26 +- 20 6 +- 23 4 7090 2 May 06 03:45 LAG2 10 0 17 19 +- 19 -3 +- 23 2 7090 2 May 06 07:31 LAG2 18 0 7 1 +- 12 3 +- 6 2 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 25 Apr 06 06:55 LAG2 11 0 3 3 +- 17 -2 +- 13 2 7105 26 Apr 06 09:13 LAG2 8 0 8 16 +- 39 -5 +- 21 2 7105 27 Apr 06 05:13 LAG1 4 0 5 -7 +- 59 12 +- 116 4 7105 27 Apr 06 06:51 LAG2 17 0 8 -7 +- 10 -2 +- 6 2 7105 27 Apr 06 11:05 LAG2 4 0 40 34 +- 176 -4 +- 128 1 7105 27 Apr 06 13:42 LAG1 2 0 33 0 +- 389 22 +- 260 0 7105 27 Apr 06 15:15 LAG2 9 0 12 -30 +- 35 -16 +- 25 1 7105 28 Apr 06 09:23 LAG2 5 0 16 1 +- 39 21 +- 55 2 7105 28 Apr 06 13:09 LAG2 8 0 8 1 +- 17 5 +- 11 3 7105 28 Apr 06 15:49 LAG1 16 0 12 -1 +- 10 -6 +- 5 2 7105 29 Apr 06 07:29 LAG2 10 0 24 -13 +- 30 -7 +- 19 2 7105 29 Apr 06 11:17 LAG2 17 0 27 2 +- 10 -23 +- 8 2 7105 1 May 06 07:23 LAG2 20 0 5 1 +- 9 -3 +- 5 2 7105 2 May 06 05:31 LAG2 20 0 5 3 +- 9 2 +- 8 1 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 25 Apr 06 00:49 LAG1 4 0 12 10 +- 23 -4 +- 25 3 7110 25 Apr 06 10:17 LAG2 10 0 20 12 +- 15 -5 +- 9 7 7110 25 Apr 06 14:45 LAG2 15 0 14 9 +- 11 -14 +- 11 2 7110 25 Apr 06 16:37 LAG1 13 0 8 -8 +- 11 0 +- 6 2 7110 25 Apr 06 19:03 LAG2 4 0 14 -3 +- 66 12 +- 84 3 7110 25 Apr 06 23:36 LAG1 8 0 23 -22 +- 15 -2 +- 25 1 7110 26 Apr 06 02:45 LAG1 17 0 18 7 +- 10 7 +- 5 3 7110 28 Apr 06 07:17 LAG1 5 0 24 -18 +- 30 15 +- 69 3 7110 28 Apr 06 08:53 LAG2 15 0 50 -7 +- 13 35 +- 9 1 7110 28 Apr 06 12:45 LAG2 23 0 12 9 +- 8 3 +- 6 5 7110 28 Apr 06 21:33 LAG2 9 0 28 44 +- 35 -13 +- 26 6 7110 28 Apr 06 23:01 LAG1 5 0 30 -39 +- 37 -15 +- 52 3 7110 29 Apr 06 02:17 LAG1 8 0 5 0 +- 17 2 +- 8 1 7110 29 Apr 06 05:39 LAG1 7 0 28 -15 +- 30 9 +- 19 1 7110 29 Apr 06 10:47 LAG2 19 0 19 11 +- 9 -8 +- 6 4 7110 29 Apr 06 19:19 LAG2 14 0 16 -13 +- 11 -6 +- 6 3 7110 29 Apr 06 21:43 LAG1 10 0 24 -25 +- 13 -4 +- 17 2 7110 30 Apr 06 00:59 LAG1 13 0 16 -15 +- 11 -2 +- 9 2 7110 30 Apr 06 04:15 LAG1 16 0 8 5 +- 10 3 +- 5 3 7110 1 May 06 15:35 LAG2 15 0 20 10 +- 12 -23 +- 12 1 7110 1 May 06 19:01 LAG1 9 0 9 -7 +- 15 1 +- 11 3 7110 2 May 06 01:45 LAG1 2 0 2 41 +- 580 24 +- 360 0 7110 2 May 06 05:11 LAG1 11 0 10 -1 +- 16 -8 +- 13 4 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 1 May 06 14:23 LAG1 6 0 19 0 +- 71 1 +- 86 19 7249 2 May 06 12:54 LAG1 6 1 16 -3 +- 148 -3 +- 143 16 Station 7308 (Tokyo) (position fixed, acc. 50 mm) 7308 25 Apr 06 08:09 LAG1 14 0 45 -37 +- 46 8 +- 36 10 7308 28 Apr 06 02:43 LAG2 5 0 15 24 +- 116 38 +- 186 2 7308 28 Apr 06 11:13 LAG1 16 0 23 -18 +- 51 15 +- 26 6 7308 1 May 06 10:37 LAG1 12 0 23 -24 +- 48 2 +- 29 6 Station 7358 (Tanegashima) (position solved, acc. 10 mm) 7358 25 Apr 06 11:45 LAG1 4 0 2 -5 +- 64 -5 +- 58 0 7358 30 Apr 06 11:59 LAG1 4 0 3 0 +- 23 0 +- 19 3 Station 7406 (San Juan) (position solved, acc. 100 mm) 7406 25 Apr 06 00:19 LAG1 2 0 9 -138 +-7527 88 +-5110 0 7406 25 Apr 06 01:49 LAG2 13 0 46 -18 +- 235 17 +- 144 3 7406 25 Apr 06 03:30 LAG1 5 0 86 -33 +- 209 75 +- 273 2 7406 25 Apr 06 05:55 LAG2 21 0 29 -1 +- 71 -22 +- 52 3 7406 25 Apr 06 06:47 LAG1 11 0 38 27 +- 90 26 +- 87 2 7406 25 Apr 06 10:06 LAG1 3 0 87 6 +-1028 78 +- 858 0 7406 26 Apr 06 00:17 LAG2 5 0 43 15 +- 331 41 +- 470 3 7406 26 Apr 06 04:41 LAG2 6 0 111 -63 +-1208 84 +- 582 1 7406 26 Apr 06 05:27 LAG1 14 0 98 30 +- 90 87 +- 73 3 7406 26 Apr 06 08:19 LAG2 8 0 75 50 +- 121 111 +- 359 3 7406 26 Apr 06 09:01 LAG1 3 0 74 22 +- 268 181 +- 865 0 7406 27 Apr 06 00:33 LAG1 18 0 21 -17 +- 71 8 +- 52 8 7406 27 Apr 06 02:03 LAG2 26 0 64 -5 +- 59 40 +- 37 12 7406 27 Apr 06 04:03 LAG1 18 0 27 -14 +- 78 9 +- 47 11 7406 27 Apr 06 06:09 LAG2 22 0 34 14 +- 65 20 +- 47 4 7406 27 Apr 06 07:33 LAG1 9 0 93 17 +- 100 101 +- 110 1 7406 28 Apr 06 00:23 LAG2 10 0 33 27 +- 107 10 +- 125 4 7406 29 Apr 06 01:19 LAG1 17 0 42 -33 +- 77 -5 +- 47 18 7406 29 Apr 06 02:31 LAG2 7 0 38 -10 +- 119 -54 +- 165 11 7406 29 Apr 06 04:59 LAG1 11 0 8 2 +- 91 0 +- 73 7 7406 29 Apr 06 06:28 LAG2 10 0 28 14 +- 170 -15 +- 180 4 7406 30 Apr 06 22:43 LAG2 9 0 239 247 +- 183 -5 +- 111 2*CHK* 7406 1 May 06 02:13 LAG1 5 0 51 -56 +- 920 -2 +- 444 4 7406 1 May 06 02:31 LAG2 5 0 35 -210 +-3298 -73 +-1384 3 7406 2 May 06 00:37 LAG2 13 0 66 36 +- 180 -22 +- 128 4 7406 2 May 06 01:13 LAG1 6 0 61 -48 +- 472 -8 +- 319 2 7406 2 May 06 04:23 LAG1 10 0 31 -1 +- 148 23 +- 116 4 7406 2 May 06 04:41 LAG2 22 0 73 -41 +- 69 30 +- 47 13 7406 2 May 06 07:45 LAG1 14 0 91 32 +- 80 89 +- 86 2 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 25 Apr 06 16:25 LAG2 17 0 18 0 +- 10 18 +- 10 2 7501 25 Apr 06 18:31 LAG1 12 0 10 7 +- 16 -2 +- 11 2 7501 25 Apr 06 22:13 LAG1 16 0 11 -11 +- 12 0 +- 7 2 7501 26 Apr 06 04:47 LAG1 11 0 14 9 +- 13 8 +- 14 1 7501 26 Apr 06 08:31 LAG1 2 0 23 37 +- 526 -11 +- 417 0 7501 26 Apr 06 10:33 LAG2 2 0 19 -54 +- 320 -98 +- 876 0 7501 26 Apr 06 19:05 LAG2 9 0 30 13 +- 45 12 +- 33 2 7501 26 Apr 06 20:39 LAG1 8 0 26 13 +- 16 -9 +- 9 3 7501 26 Apr 06 22:55 LAG2 14 0 11 2 +- 11 8 +- 9 3 7501 27 Apr 06 22:55 LAG1 14 0 11 -9 +- 12 -2 +- 8 3 7501 28 Apr 06 01:05 LAG2 12 0 40 -41 +- 12 26 +- 17 3 7501 28 Apr 06 05:31 LAG1 12 0 30 28 +- 12 4 +- 9 2 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 25 Apr 06 23:04 LAG1 2 0 11 -5 +- 502 -23 +- 697 0 7810 29 Apr 06 21:33 LAG1 2 0 25 -47 +-9154 8 +-3689 0 7810 30 Apr 06 01:40 LAG2 21 0 16 15 +- 39 2 +- 25 5 7810 30 Apr 06 05:42 LAG2 22 0 18 17 +- 42 10 +- 29 4 7810 30 Apr 06 09:07 LAG1 12 0 38 24 +- 61 25 +- 35 5 7810 30 Apr 06 09:57 LAG2 2 0 28 44 +- 203 25 +- 133 0 7810 30 Apr 06 12:43 LAG1 7 0 18 0 +- 70 9 +- 39 5 7810 30 Apr 06 19:29 LAG1 15 0 21 8 +- 49 -9 +- 27 2 7810 1 May 06 03:44 LAG2 20 0 22 19 +- 41 8 +- 27 3 7810 1 May 06 07:41 LAG1 6 0 32 57 +- 528 13 +- 291 1 7810 1 May 06 08:05 LAG2 7 0 41 40 +- 148 0 +- 115 2 7810 2 May 06 09:55 LAG1 9 0 26 25 +- 62 4 +- 34 8 7810 2 May 06 10:23 LAG2 4 0 29 31 +- 104 4 +- 159 2 7810 2 May 06 13:37 LAG1 3 0 20 -2 +- 109 22 +- 123 0 7810 2 May 06 16:53 LAG1 17 0 10 3 +- 45 4 +- 27 4 7810 2 May 06 20:20 LAG1 18 0 16 14 +- 43 -4 +- 27 2 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 25 Apr 06 19:21 LAG1 13 0 35 31 +- 50 -8 +- 32 9 7811 26 Apr 06 01:35 LAG2 5 0 48 53 +- 105 75 +- 168 20 7811 27 Apr 06 20:14 LAG1 10 0 34 25 +- 58 0 +- 59 23 Station 7821 (Shanghai Observatory) (position solved, acc. 50 mm) 7821 2 May 06 17:07 LAG2 5 0 3 0 +- 714 0 +- 373 3 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 26 Apr 06 21:25 LAG1 10 0 69 56 +- 67 -10 +- 44 3 7824 28 Apr 06 22:31 LAG1 6 0 42 53 +- 73 -21 +- 94 4 7824 29 Apr 06 20:49 LAG1 14 0 37 24 +- 34 -10 +- 18 4 7824 30 Apr 06 20:01 LAG1 4 0 4 -8 +- 889 4 +- 365 2 7824 1 May 06 21:39 LAG1 12 0 36 40 +- 50 4 +- 32 2 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 25 Apr 06 04:59 LAG2 20 0 18 16 +- 10 0 +- 6 5 7825 25 Apr 06 09:01 LAG2 22 0 10 -5 +- 8 -6 +- 6 1 7825 25 Apr 06 10:51 LAG1 20 0 9 8 +- 9 1 +- 5 3 7825 25 Apr 06 13:09 LAG2 21 0 5 0 +- 9 -3 +- 5 1 7825 25 Apr 06 14:29 LAG1 18 0 6 -5 +- 10 0 +- 6 2 7825 25 Apr 06 18:02 LAG1 6 0 9 11 +- 26 -9 +- 30 5 7825 25 Apr 06 21:09 LAG1 14 0 6 0 +- 11 -3 +- 5 2 7825 26 Apr 06 00:45 LAG1 11 0 10 -8 +- 13 3 +- 16 2 7825 26 Apr 06 03:01 LAG2 10 0 12 1 +- 25 7 +- 19 9 7825 26 Apr 06 07:15 LAG2 17 0 7 5 +- 13 1 +- 9 2 7825 26 Apr 06 09:41 LAG1 9 0 25 -25 +- 14 -1 +- 25 3 7825 26 Apr 06 11:13 LAG2 24 0 6 -2 +- 8 2 +- 5 5 7825 26 Apr 06 13:03 LAG1 21 0 22 -3 +- 9 -12 +- 5 3 7825 26 Apr 06 15:25 LAG2 20 0 6 0 +- 9 3 +- 8 4 7825 26 Apr 06 16:41 LAG1 4 0 22 27 +- 25 -12 +- 22 1 7825 26 Apr 06 19:48 LAG1 19 0 19 -2 +- 9 -12 +- 6 3 7825 26 Apr 06 23:29 LAG1 4 0 11 -9 +- 34 4 +- 63 2 7825 27 Apr 06 05:16 LAG2 15 0 16 19 +- 13 -4 +- 7 3 7825 27 Apr 06 09:19 LAG2 21 0 27 -1 +- 9 -20 +- 7 1 7825 27 Apr 06 11:39 LAG1 18 0 20 0 +- 9 10 +- 5 5 7825 27 Apr 06 13:23 LAG2 23 0 19 7 +- 8 -10 +- 5 4 7825 27 Apr 06 15:12 LAG1 13 0 20 9 +- 11 12 +- 9 5 7825 27 Apr 06 18:45 LAG1 6 0 9 -2 +- 19 15 +- 38 5 7825 27 Apr 06 22:03 LAG1 12 0 5 0 +- 14 -1 +- 7 3 7825 28 Apr 06 07:17 LAG2 23 0 20 -13 +- 8 11 +- 6 2 7825 30 Apr 06 07:31 LAG2 13 0 7 -5 +- 12 0 +- 8 4 7825 30 Apr 06 11:11 LAG1 3 0 22 3 +- 40 17 +- 28 3 7825 30 Apr 06 11:43 LAG2 9 0 29 -3 +- 14 16 +- 8 3 7825 1 May 06 23:51 LAG1 2 0 4 15 +- 121 -19 +- 190 0 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 25 Apr 06 03:38 LAG2 11 0 5 -1 +- 23 -3 +- 34 4 7832 26 Apr 06 01:27 LAG2 12 0 24 10 +- 19 20 +- 17 3 7832 26 Apr 06 17:43 LAG1 5 0 25 -3 +- 77 -23 +- 66 2 7832 26 Apr 06 23:35 LAG2 11 0 13 -11 +- 19 7 +- 24 3 7832 28 Apr 06 19:57 LAG2 5 0 6 6 +- 34 -16 +- 136 2 7832 29 Apr 06 00:05 LAG2 11 0 13 -45 +- 72 23 +- 41 3 7832 29 Apr 06 17:11 LAG1 11 0 11 -6 +- 20 -3 +- 17 7 7832 29 Apr 06 21:59 LAG2 12 0 15 -5 +- 24 -10 +- 24 4 7832 30 Apr 06 01:53 LAG2 8 0 11 -15 +- 84 -3 +- 72 2 7832 30 Apr 06 16:03 LAG1 6 0 6 -22 +- 97 14 +- 63 1 7832 1 May 06 08:29 LAG2 8 2 93 130 +- 89 30 +- 65 14 7832 1 May 06 17:53 LAG1 5 0 14 25 +- 145 7 +- 84 3 7832 1 May 06 22:08 LAG2 3 0 94 -374 +- 225 -453 +- 235 22*CHK* Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 25 Apr 06 01:25 LAG1 9 0 41 44 +- 36 -2 +- 15 5 7838 25 Apr 06 04:42 LAG2 5 0 37 47 +- 400 -6 +- 211 10 7838 25 Apr 06 11:37 LAG1 17 0 51 47 +- 23 8 +- 12 5 7838 25 Apr 06 17:56 LAG2 14 0 65 57 +- 26 10 +- 16 8 7838 27 Apr 06 12:24 LAG1 9 0 49 56 +- 40 37 +- 26 7 7838 27 Apr 06 18:30 LAG2 5 0 81 61 +- 166 17 +- 139 4 7838 28 Apr 06 11:07 LAG1 14 0 61 36 +- 26 21 +- 14 5 7838 30 Apr 06 11:59 LAG1 8 0 61 52 +- 34 23 +- 33 5 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 25 Apr 06 03:23 LAG2 16 0 5 5 +- 12 0 +- 8 1 7839 25 Apr 06 07:23 LAG2 7 0 15 3 +- 76 -7 +- 46 0 7839 1 May 06 18:27 LAG1 10 0 3 -1 +- 32 2 +- 17 0 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 26 Apr 06 11:04 LAG1 7 0 9 9 +- 53 0 +- 35 1 7840 27 Apr 06 07:37 LAG2 10 0 13 6 +- 21 -9 +- 18 2 7840 28 Apr 06 01:36 LAG2 15 0 33 11 +- 17 22 +- 13 4 7840 28 Apr 06 15:23 LAG1 10 0 4 2 +- 21 -2 +- 13 1 7840 28 Apr 06 18:51 LAG1 17 0 28 -12 +- 16 -13 +- 9 1 7840 28 Apr 06 22:25 LAG1 17 0 13 2 +- 16 -10 +- 13 3 7840 29 Apr 06 07:51 LAG2 10 0 17 9 +- 20 -11 +- 17 1 7840 1 May 06 11:27 LAG1 14 0 5 2 +- 19 2 +- 13 3 7840 1 May 06 12:07 LAG2 8 0 9 5 +- 25 -8 +- 36 1 7840 1 May 06 14:51 LAG1 11 0 5 -1 +- 21 3 +- 17 1 7840 1 May 06 18:15 LAG1 17 0 5 -1 +- 16 2 +- 9 2 7840 2 May 06 13:51 LAG1 3 0 14 -32 +- 298 31 +- 207 0 7840 2 May 06 16:57 LAG1 15 0 6 1 +- 17 3 +- 12 3 7840 2 May 06 20:31 LAG1 15 0 12 -9 +- 18 -2 +- 12 2 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 30 Apr 06 19:51 LAG1 9 0 2 0 +- 27 0 +- 18 2 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 25 Apr 06 03:29 LAG2 1 0 4 0 +- 0 0 +- 0 0 7941 25 Apr 06 07:22 LAG2 10 0 4 9 +- 39 5 +- 26 2 7941 1 May 06 18:11 LAG1 15 0 1 0 +- 11 0 +- 7 1 7941 2 May 06 10:01 LAG1 3 0 1931 1583 +- 369 -170 +- 181 11*CHK* Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 30 Apr 06 05:53 LAG2 11 0 18 -8 +- 15 10 +- 12 2 8834 30 Apr 06 10:37 LAG2 2 0 62 -91 +-2722 66 +-1184 0 8834 1 May 06 04:23 LAG2 3 0 4 -8 +- 186 3 +- 165 0 8834 1 May 06 07:45 LAG1 4 0 5 17 +- 149 8 +- 96 2 8834 1 May 06 08:09 LAG2 10 0 21 22 +- 18 2 +- 18 5 8834 2 May 06 06:19 LAG2 7 0 10 5 +- 15 7 +- 16 3 8834 2 May 06 20:17 LAG1 3 0 12 -19 +- 39 -6 +- 19 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 -------------------------------------------------------------------------- 1864 MD2LAS 060104 - 060502 0/ 41/ 0 0/ 15/ 0 56 1873 SIMLAS 060328 - 060503 0/ 9/ 0 0/ 2/ 0 11 1884 RIGLAS 060112 - 060424 0/ 31/ 0 0/ 8/ 0 39 1893 CRMLAS 060113 - 060402 0/ 8/ 0 0/ 0/ 0 8 6405 TIGO 060103 - 060309 20/ 44/ 1 14/ 47/ 9 135 6810 ZIMLAT 060103 - 060503 91/ 85/ 8 83/ 49/ 8 324 7080 MLRS25 060102 - 060502 1/ 46/ 1 4/ 30/ 1 83 7090 ML0514 060101 - 060502 155/185/ 14 91/192/ 17 654 7105 ML0725 060106 - 060502 13/ 64/ 2 16/ 30/ 2 127 7110 ML0414 060103 - 060502 53/ 67/ 6 54/ 34/ 6 220 7124 ML0819 060225 - 060420 0/ 26/ 0 0/ 15/ 0 41 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 - 060502 0/ 52/ 0 0/ 14/ 0 66 7308 CRLLAS 060110 - 060501 6/ 17/ 0 6/ 13/ 0 42 7358 GMSL 060111 - 060430 1/ 12/ 0 1/ 7/ 0 21 7405 TIGO 060103 - 060302 0/ 9/ 0 0/ 5/ 0 14 7406 060223 - 060502 0/110/ 0 0/115/ 0 225 7501 ML0616 060117 - 060428 16/ 46/ 1 8/ 55/ 3 129 7810 ZIMLAT 060103 - 060503 91/ 88/ 8 81/ 49/ 7 324 7811 POLLAS 060109 - 060427 0/ 31/ 0 0/ 7/ 0 38 7821 CHILAS 060106 - 060502 0/ 14/ 0 0/ 9/ 0 23 7824 SPNLAS 060109 - 060501 0/ 65/ 0 0/ 20/ 1 86 7825 STL3 060102 - 060501 96/113/ 11 73/145/ 13 451 7832 SALRO 060103 - 060501 49/ 93/ 4 71/ 57/ 7 281 7838 SHOLAS 060105 - 060430 29/ 75/ 1 34/ 33/ 4 176 7839 AUSLAS 060109 - 060501 57/ 64/ 5 59/ 29/ 5 219 7840 RGOLAS 060104 - 060503 66/ 73/ 8 61/ 25/ 7 240 7841 GFZLA3 060107 - 060503 10/ 51/ 3 13/ 22/ 6 105 7941 MLROnn 060125 - 060503 42/ 52/ 3 38/ 27/ 7 169 8834 WLRS01 060105 - 060503 51/ 50/ 3 63/ 33/ 9 209 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 060426.0 106.2 +/- 0.1 362.4 +/- 0.1 262.53 +/- 0.01 060427.0 106.7 +/- 0.1 362.7 +/- 0.1 261.18 +/- 0.02 060428.0 106.2 +/- 0.1 362.0 +/- 0.1 260.00 +/- 0.02 060429.0 108.0 +/- 0.1 362.0 +/- 0.1 259.10 +/- 0.03 060430.0 107.9 +/- 0.1 361.3 +/- 0.1 258.66 +/- 0.03 060501.0 109.6 +/- 0.2 360.6 +/- 0.1 258.43 +/- 0.04 060502.0 109.9 +/- 0.1 359.8 +/- 0.1 258.25 +/- 0.04 -------------------------------------------------------------- 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 ******************************************************************************** |