| Date: | 2005-10-22 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 6220: Delft QL Report October 22, 2005 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2005-10-22 13:15:00 UTC Message No. 6220 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report October 22, 2005 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS October 22, 2005 This is a daily report, presenting the results of a continuing analysis of the most recent global LAGEOS-1 and LAGEOS-2 quick-look laser ranging data. The report consists of (A) a pass summary, (B) an overview of the analysis results, detailed statistics of the analysed measurements, and an accumulative pass overview and (C) the earth rotation parameter solutions submitted to IERS. The report is based on all quick-look data as received until Sat, Oct 22, 2005. Questions and comments should be addressed to: R. Noomen Delft University of Technology Faculty of Aerospace Engineering Delft Institute for Earth-Oriented Space Research Kluyverweg 1 2629 HS Delft The Netherlands Telephone: +31-15-2785377 Telefax : +31-15-2785322 E-mail : ron.noomen@deos.tudelft.nl A. PASS SUMMARY The table below gives an overview of the ranging data both on LAGEOS-1 and LAGEOS-2, as received by the Quick-Look Data Analysis Center (QLDAC) on Sat, Oct 22, 2005. All data were obtained through the NASA Crustal Dynamics Data Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany. The data are unscreened and may span more than a week due to late reporting by the stations. ------------------------------------------------------------------------------ Station System/Location Period No. of Passes ID LAGEOS-1 LAGEOS-2 ------------------------------------------------------------------------------ 1831 Lviv, Ukraine 051020 - 051020 1 - 1873 Simeiz, Crimea, Ukraine 051021 - 051021 1 1 6405 Concepcion, Chile (TIGO 847) 051019 - 051020 2 3 6810 Zimmerwald 846, Switzerland 051020 - 051022 3 1 7090 Yarragadee, Australia 051020 - 051021 2 2 7105 Greenbelt, Maryland 051020 - 051020 1 1 7110 Monument Peak, California 051019 - 051021 4 3 7237 Changchun, China 051020 - 051020 1 - 7358 Tanegashima, Japan 051020 - 051020 1 2 7810 Zimmerwald 423, Switzerland 051020 - 051022 3 1 7824 San Fernando, Spain 051020 - 051021 2 - 7825 Mount Stromlo, Australia 051020 - 051021 2 2 7832 Riyad, Saudi Arabia 051021 - 051022 2 1 7838 Simosato Observatory, Japan 051020 - 051021 1 1 7839 Graz, Austria 051021 - 051021 1 2 7840 Herstmonceux, United Kingdom 051020 - 051020 1 - 8834 Wettzell, Germany 051020 - 051021 2 2 ------ ------ --- --- TOTAL 051019 - 051022 30 22 ------------------------------------------------------------------------------ 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 Fri, Oct 14, 2005 to Sat, Oct 22, 2005. The measurement and dynamic models used in this analysis are close to the IERS Standard. The overall model is referred to as QLDACMOD11. The details of this model can be obtained on request. The terrestrial reference frame is provided by the ITRF2000 station coordinates solution (extended with coordinates of new stations, where necessary). The general statistics and results of this week´s analysis are thus: ----------------------------------------------------------------------- Satellite LAGEOS-1 LAGEOS-2 Number of Stations 25 22 Number of Passes 214/212 164/162 Number of Normal Points 2327/2312 1902/1886 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 1831 (Lviv) (position fixed, acc. 400 mm) 1831 19 Oct 05 18:29 LAG1 4 0 113 -110 +- 635 -24 +- 384 43 1831 20 Oct 05 20:49 LAG1 6 0 211 -187 +- 753 -31 +- 854 30 Station 1864 (Maidanak) (position fixed, acc. 200 mm) 1864 14 Oct 05 15:03 LAG1 5 0 55 135 +-2649 -77 +-1107 20 1864 14 Oct 05 18:19 LAG1 4 0 91 -32 +- 712 -70 +- 938 35 1864 14 Oct 05 20:19 LAG2 7 0 119 -17 +- 949 -57 +- 545 20 1864 15 Oct 05 18:27 LAG2 5 0 59 158 +-1399 -130 +- 925 29 1864 15 Oct 05 20:15 LAG1 3 0 58 -37 +-1083 44 +-2336 6 Station 1873 (Simeiz) (position fixed, acc. 200 mm) 1873 21 Oct 05 22:52 LAG1 7 0 150 193 +- 522 -35 +- 375 17 1873 21 Oct 05 23:11 LAG2 3 0 194 301 +-9451 -47 +-4051 32 Station 1884 (Riga) (position fixed, acc. 100 mm) 1884 14 Oct 05 01:43 LAG2 18 0 17 15 +- 70 2 +- 50 8 1884 14 Oct 05 02:29 LAG1 19 0 27 12 +- 68 -12 +- 40 8 1884 18 Oct 05 16:23 LAG1 10 0 47 -50 +- 122 5 +- 110 5 1884 18 Oct 05 19:47 LAG1 11 0 54 -52 +- 90 10 +- 49 4 1884 18 Oct 05 23:13 LAG1 18 0 65 -63 +- 70 6 +- 42 11 Station 6405 (Concepcion) (position solved, acc. 20 mm) 6405 14 Oct 05 00:09 LAG2 10 0 9 6 +- 94 8 +- 51 4 6405 14 Oct 05 00:31 LAG1 6 0 6 -4 +- 33 6 +- 68 5 6405 14 Oct 05 04:27 LAG2 8 1 36 40 +- 33 -68 +- 76 20 6405 14 Oct 05 22:41 LAG2 5 0 38 -35 +- 112 77 +- 122 9 6405 16 Oct 05 00:20 LAG2 6 0 32 -25 +- 381 -25 +- 171 8 6405 16 Oct 05 23:19 LAG2 3 0 6 27 +-1903 -9 +- 821 0 6405 16 Oct 05 23:47 LAG1 7 0 40 41 +- 43 48 +- 50 31 6405 17 Oct 05 02:29 LAG2 20 0 17 -11 +- 17 5 +- 13 4 6405 17 Oct 05 19:03 LAG1 8 0 17 -10 +- 30 -3 +- 34 10 6405 17 Oct 05 20:50 LAG2 11 0 17 -9 +- 39 -6 +- 32 3 6405 17 Oct 05 22:21 LAG1 12 0 8 -6 +- 19 0 +- 9 5 6405 18 Oct 05 00:43 LAG2 20 0 21 7 +- 14 3 +- 11 19 6405 18 Oct 05 18:55 LAG2 12 0 10 -21 +- 58 15 +- 36 6 6405 18 Oct 05 21:07 LAG1 12 0 7 -6 +- 27 5 +- 15 4 6405 19 Oct 05 12:59 LAG1 18 0 14 11 +- 17 2 +- 10 6 6405 19 Oct 05 17:09 LAG2 6 0 16 22 +- 281 -3 +- 128 6 6405 19 Oct 05 19:53 LAG1 9 0 9 -18 +- 46 11 +- 30 4 6405 19 Oct 05 21:07 LAG2 7 0 17 -19 +- 47 4 +- 45 7 6405 19 Oct 05 23:31 LAG1 10 0 8 23 +- 85 -10 +- 45 5 6405 20 Oct 05 00:49 LAG2 19 0 4 2 +- 19 1 +- 13 4 6405 20 Oct 05 11:37 LAG1 17 0 11 7 +- 16 -5 +- 9 6 6405 20 Oct 05 19:11 LAG2 7 0 10 -25 +- 90 20 +- 71 8 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 14 Oct 05 01:23 LAG2 18 0 7 -2 +- 43 3 +- 24 3 6810 14 Oct 05 02:41 LAG1 7 0 29 -9 +- 90 -10 +- 41 2 6810 14 Oct 05 05:37 LAG2 19 0 8 4 +- 42 -3 +- 25 3 6810 14 Oct 05 05:59 LAG1 20 0 18 6 +- 43 -11 +- 26 5 6810 14 Oct 05 18:09 LAG1 24 0 17 -6 +- 37 7 +- 17 3 6810 14 Oct 05 21:41 LAG1 11 0 24 -4 +- 62 9 +- 29 5 6810 14 Oct 05 23:27 LAG2 23 0 15 -9 +- 38 5 +- 20 3 6810 15 Oct 05 01:07 LAG1 19 0 8 -2 +- 42 3 +- 23 3 6810 15 Oct 05 03:35 LAG2 19 0 12 -10 +- 42 1 +- 22 4 6810 15 Oct 05 04:39 LAG1 23 0 9 -1 +- 39 -4 +- 20 4 6810 15 Oct 05 07:40 LAG2 16 0 5 0 +- 46 2 +- 28 3 6810 15 Oct 05 16:45 LAG1 25 0 14 3 +- 36 -7 +- 20 3 6810 15 Oct 05 20:19 LAG1 10 0 21 -8 +- 58 8 +- 28 6 6810 15 Oct 05 21:37 LAG2 18 0 24 -6 +- 54 -18 +- 36 3 6810 16 Oct 05 00:03 LAG1 9 0 18 -18 +- 73 0 +- 68 2 6810 16 Oct 05 01:53 LAG2 11 0 17 -10 +- 56 -7 +- 35 2 6810 16 Oct 05 03:09 LAG1 21 0 21 -6 +- 40 -9 +- 19 6 6810 16 Oct 05 05:45 LAG2 17 0 6 -5 +- 46 0 +- 23 3 6810 16 Oct 05 06:53 LAG1 18 0 23 7 +- 43 -17 +- 40 7 6810 16 Oct 05 09:51 LAG2 12 0 9 -7 +- 53 4 +- 44 1 6810 16 Oct 05 15:34 LAG1 6 0 7 2 +- 81 1 +- 77 6 6810 16 Oct 05 18:55 LAG1 19 0 50 -6 +- 47 23 +- 23 3 6810 16 Oct 05 20:05 LAG2 7 0 13 -17 +- 98 -14 +- 168 0 6810 16 Oct 05 22:28 LAG1 11 0 41 -17 +- 55 21 +- 29 3 6810 16 Oct 05 23:41 LAG2 25 0 8 -6 +- 36 1 +- 19 2 6810 17 Oct 05 01:55 LAG1 21 0 25 -6 +- 41 12 +- 20 6 6810 20 Oct 05 16:59 LAG1 25 0 17 -15 +- 36 2 +- 19 4 6810 21 Oct 05 07:15 LAG1 11 0 13 -14 +- 60 -5 +- 95 3 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 14 Oct 05 03:35 LAG2 3 0 17 -179 +- 862 70 +- 376 2 7090 15 Oct 05 10:11 LAG1 6 0 20 -14 +- 37 6 +- 32 0 7090 15 Oct 05 13:35 LAG2 20 0 4 0 +- 10 0 +- 5 4 7090 15 Oct 05 22:41 LAG1 16 0 16 -15 +- 10 -3 +- 6 4 7090 17 Oct 05 07:39 LAG1 4 0 11 -17 +- 32 28 +- 64 2 7090 17 Oct 05 09:43 LAG2 15 0 12 -12 +- 11 5 +- 8 2 7090 17 Oct 05 10:51 LAG1 15 0 18 -10 +- 12 7 +- 9 1 7090 17 Oct 05 13:37 LAG2 13 0 14 -6 +- 11 6 +- 6 7 7090 17 Oct 05 19:55 LAG1 17 0 13 -12 +- 10 -3 +- 10 3 7090 17 Oct 05 23:29 LAG1 7 0 3 1 +- 46 0 +- 29 2 7090 18 Oct 05 03:47 LAG2 6 0 15 -5 +- 60 -6 +- 38 4 7090 18 Oct 05 07:37 LAG2 21 0 16 -5 +- 9 -13 +- 9 5 7090 18 Oct 05 09:25 LAG1 18 0 16 -10 +- 10 -6 +- 4 3 7090 18 Oct 05 11:57 LAG2 17 0 3 -1 +- 10 0 +- 7 3 7090 18 Oct 05 15:56 LAG2 14 0 8 -4 +- 11 -12 +- 18 2 7090 19 Oct 05 08:23 LAG1 8 0 15 -10 +- 19 20 +- 19 1 7090 19 Oct 05 09:49 LAG2 21 0 8 -6 +- 9 1 +- 6 4 7090 19 Oct 05 11:45 LAG1 10 0 25 -18 +- 18 10 +- 21 4 7090 19 Oct 05 13:55 LAG2 16 0 9 -8 +- 10 1 +- 5 2 7090 19 Oct 05 20:37 LAG1 24 0 6 -4 +- 8 1 +- 5 2 7090 20 Oct 05 00:21 LAG1 7 0 4 4 +- 22 6 +- 25 2 7090 20 Oct 05 07:49 LAG2 23 0 12 2 +- 8 -9 +- 7 4 7090 20 Oct 05 10:27 LAG1 10 0 11 -12 +- 15 3 +- 8 2 7090 20 Oct 05 12:03 LAG2 22 0 2 -1 +- 8 0 +- 5 1 7090 20 Oct 05 19:33 LAG1 7 0 1 -1 +- 17 3 +- 46 1 7090 21 Oct 05 06:07 LAG2 2 0 20 -27 +- 41 13 +- 33 0 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 15 Oct 05 07:07 LAG2 25 0 2 -1 +- 8 0 +- 5 1 7105 15 Oct 05 08:22 LAG1 13 0 8 6 +- 11 0 +- 4 5 7105 15 Oct 05 11:21 LAG2 7 0 9 -8 +- 16 0 +- 10 3 7105 17 Oct 05 05:59 LAG1 14 0 18 4 +- 12 11 +- 9 2 7105 17 Oct 05 07:13 LAG2 24 0 10 -5 +- 8 -4 +- 4 3 7105 17 Oct 05 09:11 LAG1 19 0 7 -4 +- 9 -1 +- 4 4 7105 18 Oct 05 09:35 LAG2 5 0 7 -74 +- 224 -37 +- 109 3 7105 19 Oct 05 07:34 LAG2 18 0 14 -14 +- 11 -7 +- 7 3 7105 19 Oct 05 09:55 LAG1 19 0 11 -11 +- 10 1 +- 4 4 7105 19 Oct 05 12:05 LAG2 12 0 14 -17 +- 16 6 +- 13 2 7105 20 Oct 05 09:09 LAG1 6 0 12 -13 +- 117 0 +- 51 1 7105 20 Oct 05 09:47 LAG2 13 0 11 -28 +- 30 -14 +- 17 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 14 Oct 05 00:07 LAG1 7 0 5 8 +- 51 -9 +- 41 3 7110 14 Oct 05 03:21 LAG1 14 0 9 -7 +- 11 -5 +- 8 1 7110 14 Oct 05 10:03 LAG1 8 0 18 -16 +- 15 -3 +- 10 2 7110 14 Oct 05 13:41 LAG1 10 0 7 2 +- 17 -6 +- 13 3 7110 15 Oct 05 05:41 LAG1 4 0 14 9 +- 31 11 +- 68 1 7110 15 Oct 05 12:03 LAG1 5 0 9 38 +- 199 12 +- 80 3 7110 19 Oct 05 10:15 LAG1 13 0 14 -11 +- 11 4 +- 9 3 7110 19 Oct 05 11:53 LAG2 9 0 12 -19 +- 31 5 +- 20 2 7110 19 Oct 05 13:57 LAG1 6 0 2 -1 +- 21 -1 +- 34 1 7110 20 Oct 05 02:09 LAG1 18 0 12 -4 +- 10 -4 +- 4 1 7110 20 Oct 05 05:45 LAG1 1 0 13 0 +- 0 0 +- 0 0 7110 20 Oct 05 09:15 LAG1 6 0 10 -3 +- 52 -5 +- 42 2 7110 20 Oct 05 09:27 LAG2 9 0 12 -24 +- 31 -18 +- 20 2 7110 20 Oct 05 12:39 LAG1 6 0 8 -3 +- 44 -3 +- 32 1 7110 21 Oct 05 00:57 LAG1 17 0 8 -3 +- 12 -3 +- 7 2 7110 21 Oct 05 07:37 LAG2 4 0 10 -15 +- 178 -3 +- 113 2 Station 7124 (Papeete) (position fixed, acc. 10 mm) 7124 15 Oct 05 06:15 LAG2 8 0 14 24 +- 30 12 +- 31 1 7124 19 Oct 05 04:19 LAG1 5 0 8 -2 +- 24 13 +- 44 1 7124 19 Oct 05 06:59 LAG2 8 0 15 24 +- 36 -9 +- 29 1 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 14 Oct 05 10:59 LAG1 11 0 39 37 +- 67 1 +- 41 7 7237 20 Oct 05 19:58 LAG1 9 0 19 22 +- 100 22 +- 65 6 Station 7249 (Beijing) (position solved, acc. 50 mm) 7249 14 Oct 05 11:01 LAG1 8 0 15 0 +- 54 0 +- 56 15 Station 7358 (Tanegashima) (position solved, acc. 10 mm) 7358 18 Oct 05 16:57 LAG2 3 0 47 -47 +- 27 2 +- 133 3 7358 18 Oct 05 19:14 LAG1 1 0 34 0 +- 0 0 +- 0 0 7358 20 Oct 05 09:37 LAG1 7 0 3 -4 +- 104 -1 +- 43 2 7358 20 Oct 05 12:55 LAG2 3 0 11 61 +- 242 39 +- 186 0 7358 20 Oct 05 17:13 LAG2 5 0 23 24 +- 33 -2 +- 63 3 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 14 Oct 05 01:23 LAG2 17 0 8 -6 +- 44 2 +- 25 2 7810 14 Oct 05 02:41 LAG1 7 0 37 -18 +- 91 -10 +- 41 1 7810 14 Oct 05 05:37 LAG2 18 0 7 -2 +- 43 -3 +- 27 3 7810 14 Oct 05 06:01 LAG1 18 0 18 1 +- 46 -11 +- 29 5 7810 14 Oct 05 18:09 LAG1 23 0 16 -7 +- 38 6 +- 18 3 7810 14 Oct 05 21:41 LAG1 12 0 25 -7 +- 55 10 +- 25 3 7810 14 Oct 05 23:31 LAG2 22 0 14 -10 +- 39 4 +- 20 4 7810 15 Oct 05 01:07 LAG1 18 0 9 -3 +- 43 4 +- 24 4 7810 15 Oct 05 03:35 LAG2 20 0 11 -11 +- 41 0 +- 21 4 7810 15 Oct 05 04:39 LAG1 22 0 11 -4 +- 39 -3 +- 21 5 7810 15 Oct 05 07:43 LAG2 16 0 9 -8 +- 49 3 +- 30 3 7810 15 Oct 05 16:47 LAG1 25 0 17 -7 +- 36 -8 +- 20 4 7810 15 Oct 05 20:19 LAG1 9 0 28 -13 +- 63 10 +- 31 4 7810 15 Oct 05 21:41 LAG2 14 0 21 -12 +- 60 -19 +- 45 4 7810 16 Oct 05 00:03 LAG1 8 0 21 -21 +- 74 0 +- 87 3 7810 16 Oct 05 01:53 LAG2 11 0 12 -9 +- 55 -6 +- 40 2 7810 16 Oct 05 03:14 LAG1 19 0 22 -11 +- 42 -9 +- 21 4 7810 16 Oct 05 05:45 LAG2 16 0 12 -10 +- 50 1 +- 26 4 7810 16 Oct 05 06:54 LAG1 18 0 23 0 +- 43 -21 +- 40 6 7810 16 Oct 05 09:53 LAG2 10 0 14 -13 +- 60 7 +- 55 4 7810 16 Oct 05 15:34 LAG1 7 0 8 2 +- 77 6 +- 82 2 7810 16 Oct 05 18:55 LAG1 19 0 55 -12 +- 45 23 +- 21 4 7810 16 Oct 05 20:05 LAG2 5 0 17 -25 +- 130 -23 +- 224 4 7810 16 Oct 05 22:28 LAG1 10 0 45 -24 +- 57 21 +- 31 3 7810 16 Oct 05 23:45 LAG2 21 0 12 -11 +- 39 1 +- 22 1 7810 17 Oct 05 01:55 LAG1 21 0 26 -11 +- 40 13 +- 21 5 7810 20 Oct 05 16:59 LAG1 19 0 10 -6 +- 41 2 +- 25 6 7810 21 Oct 05 07:17 LAG1 9 0 11 -10 +- 69 -13 +- 126 5 Station 7811 (Borowiec) (position fixed, acc. 60 mm) 7811 14 Oct 05 21:50 LAG1 7 0 13 14 +- 73 6 +- 93 3 7811 19 Oct 05 22:03 LAG1 11 0 15 12 +- 55 4 +- 51 5 7811 19 Oct 05 22:27 LAG2 13 0 35 36 +- 53 -10 +- 50 9 7811 20 Oct 05 02:25 LAG2 7 0 35 32 +- 69 12 +- 56 11 Station 7824 (San Fernando) (position fixed, acc. 40 mm) 7824 14 Oct 05 02:41 LAG1 12 0 27 31 +- 42 -13 +- 31 5 7824 14 Oct 05 05:49 LAG2 10 0 46 49 +- 45 -9 +- 55 1 7824 14 Oct 05 06:13 LAG1 9 0 69 78 +- 53 -15 +- 50 2 7824 14 Oct 05 18:29 LAG1 19 0 63 56 +- 32 6 +- 16 7 7824 14 Oct 05 22:01 LAG1 6 0 54 62 +- 95 12 +- 109 3 7824 14 Oct 05 23:39 LAG2 4 0 70 74 +- 188 5 +- 234 4 7824 15 Oct 05 01:30 LAG1 1 0 50 0 +- 0 0 +- 0 0 7824 15 Oct 05 20:55 LAG1 7 0 80 82 +- 142 -1 +- 84 2 7824 18 Oct 05 20:25 LAG1 6 0 83 73 +- 253 5 +- 125 2 7824 19 Oct 05 00:21 LAG2 4 0 81 95 +- 266 -10 +- 183 2 7824 19 Oct 05 06:27 LAG1 9 0 55 51 +- 50 5 +- 53 3 7824 19 Oct 05 08:23 LAG2 6 0 81 88 +- 103 8 +- 101 2 7824 19 Oct 05 18:39 LAG1 12 0 70 70 +- 35 7 +- 16 5 7824 19 Oct 05 22:19 LAG1 4 0 53 54 +- 80 7 +- 233 7 7824 19 Oct 05 22:27 LAG2 6 0 75 101 +- 198 -20 +- 154 3 7824 20 Oct 05 01:35 LAG1 5 0 56 63 +- 96 15 +- 149 2 7824 20 Oct 05 01:59 LAG2 20 0 70 72 +- 29 5 +- 20 5 7824 20 Oct 05 06:19 LAG2 17 0 86 90 +- 31 12 +- 24 6*CHK* 7824 20 Oct 05 20:51 LAG1 9 0 54 70 +- 63 19 +- 52 1 7824 21 Oct 05 07:15 LAG1 4 0 111 124 +- 101 42 +- 231 16 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 14 Oct 05 01:09 LAG1 12 0 18 3 +- 12 -19 +- 13 4 7825 14 Oct 05 03:27 LAG2 17 0 6 -6 +- 17 2 +- 11 4 7825 14 Oct 05 04:19 LAG1 14 1 11 -5 +- 12 -6 +- 7 4 7825 14 Oct 05 07:19 LAG2 14 0 13 -10 +- 12 -8 +- 7 2 7825 14 Oct 05 07:45 LAG1 13 0 8 -3 +- 12 3 +- 6 2 7825 14 Oct 05 11:31 LAG2 20 0 5 -3 +- 9 -2 +- 6 2 7825 14 Oct 05 20:11 LAG1 25 0 9 3 +- 8 3 +- 4 4 7825 15 Oct 05 01:49 LAG2 8 0 27 54 +- 121 -13 +- 55 10 7825 15 Oct 05 03:06 LAG1 14 0 13 2 +- 11 -2 +- 10 12 7825 15 Oct 05 05:29 LAG2 16 0 6 -3 +- 10 4 +- 7 2 7825 15 Oct 05 06:29 LAG1 12 0 13 -8 +- 12 5 +- 7 2 7825 17 Oct 05 10:07 LAG2 15 0 14 1 +- 14 9 +- 10 3 7825 17 Oct 05 19:41 LAG1 12 0 14 11 +- 12 0 +- 5 8 7825 17 Oct 05 23:29 LAG1 7 1 16 0 +- 30 8 +- 38 15 7825 18 Oct 05 03:53 LAG2 18 0 6 7 +- 14 -5 +- 10 3 7825 18 Oct 05 09:31 LAG1 10 0 10 -2 +- 19 -14 +- 22 1 7825 18 Oct 05 12:07 LAG2 11 0 5 0 +- 13 0 +- 19 5 7825 20 Oct 05 12:20 LAG2 5 0 23341 23354 +- 52 18 +- 67 7*CHK* 7825 21 Oct 05 05:15 LAG1 24 0 6 -3 +- 8 2 +- 4 4 7825 21 Oct 05 06:37 LAG2 4 0 2 -9 +- 98 8 +- 109 0 7825 21 Oct 05 21:25 LAG1 6 0 5 -6 +- 43 -4 +- 33 5 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 15 Oct 05 13:27 LAG1 8 0 10 -10 +- 48 -15 +- 42 2 7832 15 Oct 05 16:52 LAG1 7 0 10 -37 +- 117 -22 +- 59 2 7832 15 Oct 05 17:57 LAG2 7 0 7 -1 +- 28 -15 +- 60 3 7832 15 Oct 05 23:29 LAG1 8 0 14 -19 +- 36 -7 +- 29 4 7832 16 Oct 05 02:21 LAG2 9 0 6 -2 +- 27 -2 +- 30 5 7832 16 Oct 05 03:11 LAG1 5 0 9 2 +- 31 6 +- 63 8 7832 16 Oct 05 06:19 LAG2 7 0 14 14 +- 93 0 +- 58 4 7832 16 Oct 05 15:39 LAG1 7 0 26 -29 +- 52 -2 +- 38 4 7832 16 Oct 05 20:05 LAG2 7 0 15 -13 +- 24 -10 +- 43 3 7832 16 Oct 05 22:23 LAG1 7 0 13 -8 +- 25 24 +- 53 2 7832 17 Oct 05 00:11 LAG2 11 0 12 12 +- 21 12 +- 34 2 7832 17 Oct 05 01:46 LAG1 6 0 13 4 +- 27 19 +- 41 3 7832 17 Oct 05 04:23 LAG2 13 0 3 2 +- 25 0 +- 19 3 7832 17 Oct 05 14:19 LAG1 7 0 13 4 +- 41 -8 +- 39 4 7832 17 Oct 05 17:49 LAG1 7 0 12 -13 +- 32 -8 +- 46 6 7832 17 Oct 05 18:09 LAG2 7 0 11 5 +- 32 -10 +- 57 1 7832 17 Oct 05 21:59 LAG2 16 0 10 -6 +- 21 -10 +- 17 2 7832 18 Oct 05 00:27 LAG1 11 0 13 14 +- 26 -1 +- 20 4 7832 18 Oct 05 02:31 LAG2 10 0 20 21 +- 25 1 +- 35 3 7832 18 Oct 05 03:55 LAG1 8 0 5 2 +- 23 -3 +- 38 4 7832 18 Oct 05 06:49 LAG2 10 0 5 2 +- 40 -1 +- 30 5 7832 18 Oct 05 13:07 LAG1 8 0 7 11 +- 43 -13 +- 44 1 7832 18 Oct 05 16:27 LAG1 7 0 18 -30 +- 47 -15 +- 40 3 7832 18 Oct 05 20:05 LAG2 18 0 6 -2 +- 15 -3 +- 10 3 7832 18 Oct 05 23:01 LAG1 11 0 6 -4 +- 20 1 +- 23 4 7832 19 Oct 05 00:23 LAG2 12 0 9 6 +- 25 14 +- 31 2 7832 19 Oct 05 02:25 LAG1 8 0 8 -3 +- 52 3 +- 35 1 7832 19 Oct 05 04:43 LAG2 12 0 9 7 +- 19 6 +- 19 4 7832 19 Oct 05 15:15 LAG1 6 0 21 -17 +- 31 -2 +- 46 11 7832 19 Oct 05 18:23 LAG2 8 0 8 8 +- 25 -3 +- 18 4 7832 21 Oct 05 22:33 LAG1 7 0 3 -1 +- 27 0 +- 50 2 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 18 Oct 05 16:37 LAG2 17 0 38 35 +- 24 4 +- 16 4 7838 18 Oct 05 19:01 LAG1 17 0 45 40 +- 23 8 +- 12 7 7838 19 Oct 05 01:07 LAG2 13 0 34 33 +- 26 0 +- 26 6 7838 19 Oct 05 07:29 LAG1 15 0 32 27 +- 24 10 +- 18 2 7838 19 Oct 05 11:03 LAG1 19 0 21 21 +- 22 -4 +- 13 3 7838 19 Oct 05 14:39 LAG2 26 0 59 51 +- 18 15 +- 10 8 7838 20 Oct 05 13:01 LAG2 9 0 46 44 +- 32 6 +- 38 6 7838 21 Oct 05 08:31 LAG1 10 0 37 40 +- 38 -5 +- 28 11 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 15 Oct 05 17:17 LAG1 4 0 4 2 +- 104 -3 +- 58 2 7839 15 Oct 05 20:21 LAG1 9 0 15 -1 +- 14 8 +- 7 1 7839 15 Oct 05 23:45 LAG1 8 0 6 -6 +- 18 0 +- 10 1 7839 17 Oct 05 03:49 LAG2 25 0 6 -2 +- 9 2 +- 5 1 7839 17 Oct 05 05:21 LAG1 21 0 7 2 +- 9 4 +- 6 3 7839 17 Oct 05 08:07 LAG2 7 0 10 2 +- 15 7 +- 11 1 7839 17 Oct 05 14:07 LAG1 15 0 8 3 +- 11 -11 +- 14 2 7839 17 Oct 05 17:43 LAG1 15 0 14 4 +- 11 -7 +- 5 1 7839 17 Oct 05 21:25 LAG1 9 0 2 -2 +- 21 0 +- 15 0 7839 17 Oct 05 21:59 LAG2 25 0 23 2 +- 8 -14 +- 5 2 7839 18 Oct 05 00:31 LAG1 19 0 11 5 +- 9 -5 +- 5 1 7839 18 Oct 05 01:53 LAG2 28 0 4 2 +- 8 -1 +- 4 1 7839 18 Oct 05 03:51 LAG1 25 0 21 0 +- 8 -10 +- 4 3 7839 18 Oct 05 06:00 LAG2 16 0 8 -2 +- 10 -3 +- 4 2 7839 18 Oct 05 16:11 LAG1 10 0 9 6 +- 13 -3 +- 7 3 7839 18 Oct 05 19:51 LAG1 9 0 18 -4 +- 14 9 +- 7 2 7839 18 Oct 05 20:15 LAG2 7 0 7 2 +- 16 -7 +- 17 0 7839 18 Oct 05 23:15 LAG1 6 0 19 -7 +- 21 7 +- 11 0 7839 18 Oct 05 23:59 LAG2 12 0 3 2 +- 30 3 +- 16 0 7839 19 Oct 05 18:47 LAG1 5 0 8 -2 +- 44 7 +- 33 0 7839 19 Oct 05 22:49 LAG2 3 0 11 -23 +- 525 5 +- 246 1 7839 20 Oct 05 06:22 LAG2 12 0 5 -7 +- 19 -3 +- 13 1 7839 21 Oct 05 03:21 LAG1 24 0 3 2 +- 8 0 +- 4 2 7839 21 Oct 05 04:29 LAG2 17 0 4 -3 +- 11 0 +- 5 2 7839 21 Oct 05 08:31 LAG2 8 0 4 -3 +- 16 1 +- 14 1 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 14 Oct 05 23:35 LAG2 13 0 14 5 +- 18 7 +- 9 2 7840 15 Oct 05 01:17 LAG1 17 0 16 16 +- 16 0 +- 10 3 7840 15 Oct 05 20:27 LAG1 16 0 14 11 +- 16 -1 +- 8 8 7840 15 Oct 05 22:01 LAG2 8 0 14 -5 +- 24 -14 +- 31 1 7840 15 Oct 05 23:55 LAG1 9 0 8 6 +- 29 -1 +- 20 2 7840 16 Oct 05 01:39 LAG2 16 0 6 2 +- 16 -1 +- 8 5 7840 16 Oct 05 03:17 LAG1 19 0 14 4 +- 15 -6 +- 8 3 7840 16 Oct 05 05:59 LAG2 12 0 4 3 +- 21 0 +- 12 2 7840 16 Oct 05 07:04 LAG1 11 0 13 3 +- 19 -15 +- 24 1 7840 16 Oct 05 09:55 LAG2 6 0 11 -10 +- 27 0 +- 37 3 7840 16 Oct 05 22:37 LAG1 7 0 38 -4 +- 24 18 +- 12 2 7840 16 Oct 05 23:49 LAG2 22 0 11 2 +- 14 6 +- 8 2 7840 17 Oct 05 02:01 LAG1 16 0 26 11 +- 16 13 +- 9 3 7840 17 Oct 05 05:37 LAG1 8 0 9 1 +- 39 9 +- 35 2 7840 17 Oct 05 08:19 LAG2 7 0 6 -16 +- 78 10 +- 54 2 7840 17 Oct 05 17:41 LAG1 16 0 19 8 +- 17 -13 +- 11 2 7840 17 Oct 05 21:25 LAG1 10 0 6 4 +- 23 -4 +- 17 2 7840 17 Oct 05 22:15 LAG2 3 0 13 8 +- 38 -16 +- 95 5 7840 18 Oct 05 00:39 LAG1 15 0 19 12 +- 17 -7 +- 11 4 7840 18 Oct 05 02:19 LAG2 8 0 5 10 +- 55 -4 +- 42 1 7840 19 Oct 05 19:01 LAG1 5 0 7 46 +- 369 -15 +- 146 1 7840 19 Oct 05 22:15 LAG1 3 0 2 -2 +- 50 -8 +- 188 0 7840 20 Oct 05 17:09 LAG1 17 0 10 10 +- 16 0 +- 11 2 Station 7841 (Potsdam) (position solved, acc. 10 mm) 7841 14 Oct 05 01:57 LAG2 12 0 11 -17 +- 30 10 +- 17 9 7841 14 Oct 05 02:31 LAG1 12 0 18 -14 +- 12 -7 +- 7 6 7841 14 Oct 05 18:09 LAG1 22 0 4 -1 +- 8 1 +- 4 3 7841 14 Oct 05 21:41 LAG1 8 0 17 27 +- 53 20 +- 27 10 7841 14 Oct 05 23:41 LAG2 16 0 13 -3 +- 10 7 +- 6 3 7841 15 Oct 05 01:07 LAG1 11 0 14 27 +- 24 14 +- 14 1 7841 15 Oct 05 03:40 LAG2 15 0 13 9 +- 66 -1 +- 32 4 7841 15 Oct 05 20:39 LAG1 10 0 11 5 +- 25 3 +- 12 2 7841 15 Oct 05 22:03 LAG2 7 0 20 20 +- 16 4 +- 32 2 7841 16 Oct 05 01:47 LAG2 13 0 10 0 +- 12 -5 +- 7 5 7841 16 Oct 05 03:23 LAG1 16 0 14 4 +- 10 -8 +- 6 5 7841 18 Oct 05 06:03 LAG2 9 0 14 -49 +- 57 -26 +- 29 6 7841 18 Oct 05 19:51 LAG1 15 0 16 -7 +- 10 8 +- 5 2 7841 18 Oct 05 23:23 LAG1 13 0 12 -1 +- 12 7 +- 8 3 7841 19 Oct 05 00:03 LAG2 23 0 14 3 +- 8 7 +- 4 4 7841 19 Oct 05 02:45 LAG1 14 0 16 -1 +- 11 8 +- 5 3 7841 19 Oct 05 04:09 LAG2 13 0 11 0 +- 11 4 +- 5 7 7841 20 Oct 05 05:07 LAG1 8 0 11 -10 +- 15 0 +- 13 6 Station 7848 (Ajaccio) (position solved, acc. 30 mm) 7848 14 Oct 05 23:51 LAG2 2 0 4 -26 +- 382 -61 +- 881 0 7848 16 Oct 05 03:32 LAG1 1 0 0 0 +- 0 0 +- 0 0 7848 17 Oct 05 00:04 LAG2 1 0 1 0 +- 0 0 +- 0 0 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 14 Oct 05 18:17 LAG1 14 0 13 0 +- 11 6 +- 5 2 7941 14 Oct 05 23:45 LAG2 14 0 8 0 +- 13 4 +- 7 2 7941 15 Oct 05 01:06 LAG1 10 0 10 13 +- 19 5 +- 15 1 7941 15 Oct 05 08:03 LAG2 7 0 6 4 +- 18 5 +- 26 4 7941 15 Oct 05 16:53 LAG1 22 0 14 3 +- 9 -7 +- 4 2 7941 15 Oct 05 20:49 LAG1 3 0 2 -1 +- 197 2 +- 132 0 7941 16 Oct 05 06:11 LAG2 1 0 3 0 +- 0 0 +- 0 0 7941 16 Oct 05 15:31 LAG1 14 0 11 8 +- 11 6 +- 7 1 7941 16 Oct 05 19:07 LAG1 13 0 38 -11 +- 11 23 +- 8 1 7941 16 Oct 05 20:03 LAG2 9 0 19 -12 +- 15 -11 +- 17 1 7941 16 Oct 05 22:35 LAG1 5 0 36 -14 +- 50 23 +- 50 1 7941 16 Oct 05 23:55 LAG2 20 0 8 0 +- 9 5 +- 6 2 7941 17 Oct 05 01:53 LAG1 10 0 15 9 +- 20 15 +- 14 4 7941 17 Oct 05 04:05 LAG2 13 0 6 -3 +- 11 3 +- 7 1 7941 17 Oct 05 05:33 LAG1 3 0 3 13 +- 126 13 +- 148 1 7941 17 Oct 05 08:09 LAG2 3 0 14 -21 +- 247 -5 +- 143 7 7941 17 Oct 05 17:39 LAG1 19 0 18 2 +- 9 -9 +- 5 2 7941 18 Oct 05 19:53 LAG1 4 0 33 -42 +- 196 -4 +- 100 1 7941 18 Oct 05 20:25 LAG2 6 0 8 2 +- 26 -9 +- 25 2 7941 19 Oct 05 18:47 LAG1 2 0 9 -5 +- 41 -80 +- 264 0 7941 19 Oct 05 22:47 LAG2 4 0 22 21 +- 372 -19 +- 165 0 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 14 Oct 05 05:49 LAG2 10 0 5 2 +- 16 2 +- 18 4 8834 14 Oct 05 06:15 LAG1 5 0 10 5 +- 32 -9 +- 56 1 8834 14 Oct 05 14:49 LAG1 5 0 9 -6 +- 20 2 +- 72 7 8834 14 Oct 05 18:11 LAG1 20 0 15 -6 +- 9 5 +- 4 7 8834 14 Oct 05 23:48 LAG2 3 0 7 -8 +- 157 0 +- 126 0 8834 15 Oct 05 01:16 LAG1 3 0 10 3 +- 62 13 +- 59 0 8834 15 Oct 05 03:49 LAG2 15 0 6 -4 +- 13 0 +- 7 4 8834 15 Oct 05 05:03 LAG1 8 0 12 -4 +- 55 -4 +- 30 2 8834 15 Oct 05 16:45 LAG1 17 0 25 0 +- 10 -11 +- 4 9 8834 15 Oct 05 20:35 LAG1 2 0 14 0 +- 31 18 +- 38 0 8834 15 Oct 05 21:45 LAG2 8 0 15 -1 +- 20 -12 +- 15 2 8834 15 Oct 05 23:51 LAG1 3 0 9 -1 +- 322 4 +- 161 3 8834 16 Oct 05 01:45 LAG2 7 0 5 9 +- 110 1 +- 53 2 8834 16 Oct 05 03:31 LAG1 2 0 3 5 +- 102 16 +- 202 0 8834 16 Oct 05 06:31 LAG2 4 0 7 -43 +- 492 14 +- 203 2 8834 16 Oct 05 15:33 LAG1 11 0 16 10 +- 12 15 +- 16 5 8834 16 Oct 05 19:13 LAG1 3 0 49 -32 +- 115 18 +- 120 1 8834 16 Oct 05 20:24 LAG2 4 0 35 -37 +- 88 1 +- 96 1 8834 16 Oct 05 22:31 LAG1 2 0 72 203 +-1079 131 +- 512 0 8834 16 Oct 05 23:51 LAG2 15 0 25 -17 +- 12 0 +- 7 18 8834 17 Oct 05 02:04 LAG1 3 0 24 -11 +- 48 14 +- 52 4 8834 17 Oct 05 03:57 LAG2 18 0 9 -4 +- 9 4 +- 5 4 8834 17 Oct 05 05:25 LAG1 19 0 10 0 +- 10 7 +- 7 4 8834 17 Oct 05 08:07 LAG2 6 0 14 6 +- 41 19 +- 40 3 8834 17 Oct 05 14:13 LAG1 3 0 6 -7 +- 26 -20 +- 209 1 8834 17 Oct 05 17:39 LAG1 10 0 8 -11 +- 19 -7 +- 12 2 8834 17 Oct 05 21:36 LAG1 1 0 26 0 +- 0 0 +- 0 0 8834 17 Oct 05 22:13 LAG2 2 0 21 232 +- 570 244 +- 649 0 8834 18 Oct 05 00:39 LAG1 7 0 6 7 +- 27 2 +- 21 4 8834 18 Oct 05 02:01 LAG2 16 0 5 -2 +- 10 1 +- 7 4 8834 18 Oct 05 04:21 LAG1 6 0 15 -5 +- 23 -14 +- 31 3 8834 18 Oct 05 06:07 LAG2 11 0 9 -8 +- 16 0 +- 10 5 8834 18 Oct 05 16:27 LAG1 14 1 13 -1 +- 16 -8 +- 10 4 8834 19 Oct 05 04:37 LAG2 7 0 13 -39 +- 48 25 +- 29 3 8834 19 Oct 05 06:31 LAG1 3 0 33 -29 +- 78 6 +- 142 1 8834 19 Oct 05 15:06 LAG1 4 0 7 -8 +- 34 10 +- 50 5 8834 20 Oct 05 01:50 LAG1 1 0 21 0 +- 0 0 +- 0 0 8834 20 Oct 05 02:13 LAG2 11 0 12 -2 +- 16 6 +- 11 4 8834 20 Oct 05 04:53 LAG1 6 0 8 -35 +- 100 -16 +- 51 4 8834 20 Oct 05 06:21 LAG2 10 0 8 -1 +- 24 3 +- 16 5 8834 20 Oct 05 20:50 LAG1 1 0 31 0 +- 0 0 +- 0 0 8834 21 Oct 05 00:35 LAG2 6 0 12 2 +- 17 -14 +- 29 8 8834 21 Oct 05 03:43 LAG1 6 0 14 -4 +- 18 -12 +- 18 4 8834 21 Oct 05 04:35 LAG2 11 0 13 -11 +- 12 -2 +- 9 7 -------------------------------------------------------------------------------- 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 050112 - 051010 0/ 16/ 0 0/ 16/ 0 32 1831 LVIL 050117 - 051020 0/ 76/ 0 0/ 31/ 0 107 1864 MD2LAS 050110 - 051015 0/134/ 0 0/ 62/ 0 196 1873 SIMLAS 050316 - 051021 0/ 65/ 0 0/ 23/ 0 88 1884 RIGLAS 050104 - 051018 0/ 96/ 0 3/ 52/ 3 154 1893 CRMLAS 050723 - 051013 0/ 17/ 0 0/ 0/ 0 17 6405 TIGO 050104 - 051020 26/ 25/ 4 25/ 48/ 4 132 6810 ZIMLAT 050101 - 051022 260/230/ 32 252/110/ 26 910 7080 MLRS25 050101 - 051005 39/ 88/ 4 27/ 76/ 10 244 7090 ML0514 050101 - 051021 170/426/ 45 145/385/ 33 1204 7105 ML0725 050108 - 051020 13/ 87/ 9 29/ 82/ 10 230 7110 ML0414 050118 - 051021 103/196/ 34 72/135/ 14 554 7124 ML0819 050118 - 051019 1/ 42/ 2 1/ 36/ 1 83 7130 TL04** 050803 - 050922 7/ 23/ 1 12/ 10/ 2 55 7237 CHALAS 050102 - 051020 0/114/ 2 0/ 92/ 0 208 7249 BEJLAS 050101 - 051014 0/ 96/ 0 0/ 78/ 0 174 7308 CRLLAS 050111 - 050510 7/ 5/ 1 1/ 10/ 0 24 7355 TROS02 050603 - 050906 0/ 46/ 0 0/ 7/ 0 53 7358 GMSL 050802 - 051020 0/ 12/ 0 2/ 4/ 0 18 7405 TIGO 050105 - 050926 5/ 30/ 0 3/ 16/ 0 54 7501 ML0616 050117 - 051010 51/129/ 6 41/125/ 7 359 7806 METLAS 050301 - 050301 0/ 0/ 0 0/ 1/ 0 1 7810 ZIMLAT 050101 - 051022 237/227/ 31 246/103/ 26 870 7811 POLLAS 050111 - 051020 0/109/ 0 0/ 53/ 0 162 7824 SPNLAS 050108 - 051021 11/170/ 6 9/111/ 7 314 7825 STL3 050101 - 051021 362/364/ 44 230/319/ 33 1352 7832 SALRO 050101 - 051022 128/287/ 29 174/243/ 26 887 7835 GRASSE 050104 - 050705 0/ 32/ 2 0/ 33/ 3 70 7837 CHILAS 050102 - 050414 0/ 22/ 0 0/ 40/ 1 63 7838 SHOLAS 050106 - 051021 49/103/ 4 41/ 89/ 6 292 7839 AUSLAS 050103 - 051021 181/184/ 29 158/118/ 16 686 7840 RGOLAS 050102 - 051020 219/203/ 36 193/113/ 26 790 7841 GFZLA3 050105 - 051020 51/105/ 15 23/ 78/ 9 281 7848 FTLR06 050515 - 051017 6/ 46/ 2 4/ 17/ 3 78 7941 MLROnn 050102 - 051019 67/156/ 11 107/113/ 21 475 8834 WLRS01 050109 - 051021 210/224/ 40 212/147/ 25 858 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 051015.0 67.1 +/- 0.1 410.3 +/- 0.1 -32667.61 +/- 0.02 051016.0 67.4 +/- 0.1 409.5 +/- 0.1 -32669.06 +/- 0.03 051017.0 69.2 +/- 0.1 408.6 +/- 0.1 -32670.43 +/- 0.04 051018.0 70.4 +/- 0.1 408.0 +/- 0.1 -32671.67 +/- 0.05 051019.0 71.0 +/- 0.1 408.1 +/- 0.1 -32672.66 +/- 0.06 051020.0 70.9 +/- 0.1 407.8 +/- 0.1 -32673.40 +/- 0.06 051021.0 70.3 +/- 0.1 406.5 +/- 0.1 -32673.95 +/- 0.06 -------------------------------------------------------------- D. COMMENTS 1. The analysis covered in this report is based on a new set of station coordinates: instead of the solution SSC(DUT)93L05, which was extrapolated over some 10 years beyond the epoch of the latest observations, the current analysis relies on the ITRF2000 solution. Tests performed during the last year show that the rms-of-fit that can be obtained when using ITRF2000 can be reduced to about 2 cm (instead of the 3+ cm which was achieved with the old model, for present-day epochs). Other model modifications are to be expected. We hope to serve the community with this development. 2. As of July 1, 2003, a new computation model and analysis strategy are in use: in terms of geometric modeling, models for ocean loading and atmospheric pressure loading have been turned on. The frequency of the solutions for the Earth Orientation Parameters has been increased to once per day (rather than once per 3 days). As a consequence, the arc length has been changed from 10 days to 8 days. Also, the empirical accelerations acting on the spacecraft are estimated twice per arc (i.e. for 4-day periods). To absorb (unmodeled) geocenter motion, 3 coefficients of the gravity field model are estimated: C(1,0), C(1,1) and S(1,1). Finally, the overall weighting scheme for the individual SLR observations is also modified slightly. 3. As of the same date, provisions for handling the dual-wavelength systems 7405 and 7810 properly have been installed. This is done by introducing dummy station ids 6405 and 6810 for the observations taken on 2nd wavelength. The specific analysis results are easily recognizable because the wavelength has been added to the printout of the station name. 4. As of July 7, 2004, similar provisions for handling the dual-wavelength syste 7941 properly have been installed. This is done by introducing a dummy station id 6941 for the observations taken on 2nd wavelength. From: Ron Noomen ******************************************************************************** |