| Date: | 2004-12-04 13:15:00 | |
| Sender: | Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 4620: Delft QL Report December 04, 2004 | |
| Author: | Ron Noomen | |
| Content: | ******************************************************************************** SLR Electronic Report 2004-12-04 13:15:00 UTC Message No. 4620 ******************************************************************************** Author: Ron Noomen Subject: Delft QL Report December 04, 2004 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS December 4, 2004 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, Dec 4, 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 Sat, Dec 4, 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 ------------------------------------------------------------------------------ 1864 Maidanak, Uzbekistan (site 2) 041201 - 041201 1 1 6810 Zimmerwald 846, Switzerland 041202 - 041204 3 3 7080 McDonald Obs., Fort Davis, TX 041202 - 041202 1 2 7090 Yarragadee, Australia 041202 - 041202 3 2 7105 Greenbelt, Maryland 041203 - 041203 1 - 7110 Monument Peak, California 041202 - 041203 2 2 7237 Changchun, China 041202 - 041202 1 1 7308 Tokyo, Japan 041201 - 041202 2 1 7501 Hartebeesthoek, SA (MOB-6) 041202 - 041203 - 2 7806 Metsahovi, Finland 041203 - 041203 1 - 7810 Zimmerwald 423, Switzerland 041202 - 041204 3 3 7825 Mount Stromlo, Australia 041202 - 041203 4 2 7838 Simosato Observatory, Japan 041203 - 041203 1 2 7840 Herstmonceux, United Kingdom 041202 - 041202 1 1 7941 Matera, Italy (MLRO 532) 041202 - 041202 1 1 ------ ------ --- --- TOTAL 041201 - 041204 25 23 ------------------------------------------------------------------------------ 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, Nov 26, 2004 to Sat, Dec 4, 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 19 Number of Passes 146/145 139/139 Number of Normal Points 1558/1554 1820/1815 Weighted RMS of Fit (mm) 12 11 ----------------------------------------------------------------------- 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 26 Nov 04 14:37 LAG1 5 0 9 -4 +- 275 1 +- 107 5 1864 26 Nov 04 15:57 LAG2 8 0 12 -6 +- 212 1 +- 139 9 1864 29 Nov 04 14:03 LAG1 4 0 29 193 +-6420 83 +-2433 3 1864 29 Nov 04 14:47 LAG2 5 0 13 113 +-3094 -58 +-1594 9 1864 1 Dec 04 14:27 LAG2 3 0 10 -52 +-6098 -21 +-3083 0 1864 1 Dec 04 14:49 LAG1 4 0 68 -80 +-8052 -4 +-3066 3 Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm) 6810 26 Nov 04 11:15 LAG2 14 0 18 -17 +- 49 -3 +- 25 5 6810 26 Nov 04 11:36 LAG1 10 0 15 -14 +- 59 4 +- 34 3 6810 26 Nov 04 15:07 LAG1 16 0 9 -5 +- 46 5 +- 32 3 6810 26 Nov 04 15:29 LAG2 19 0 16 -11 +- 42 -5 +- 29 6 6810 27 Nov 04 09:23 LAG2 21 0 14 -11 +- 40 -4 +- 23 3 6810 27 Nov 04 10:15 LAG1 16 0 21 -19 +- 51 0 +- 29 4 6810 27 Nov 04 13:25 LAG2 17 0 22 -11 +- 45 9 +- 26 3 6810 27 Nov 04 13:43 LAG1 11 0 12 1 +- 59 -6 +- 34 6 6810 27 Nov 04 17:10 LAG1 14 0 24 -3 +- 57 -10 +- 27 4 6810 27 Nov 04 17:35 LAG2 23 0 5 -2 +- 38 2 +- 24 3 6810 27 Nov 04 21:03 LAG1 4 0 29 -11 +- 116 -20 +- 120 8 6810 27 Nov 04 21:45 LAG2 6 0 16 -15 +- 78 -17 +- 275 7 6810 28 Nov 04 07:55 LAG2 8 0 11 -4 +- 107 -5 +- 134 6 6810 28 Nov 04 09:15 LAG1 8 0 13 -19 +- 112 6 +- 73 4 6810 28 Nov 04 11:41 LAG2 6 0 16 -10 +- 74 5 +- 68 11 6810 1 Dec 04 18:13 LAG2 19 0 10 -7 +- 49 -3 +- 35 2 6810 1 Dec 04 18:45 LAG1 15 0 8 1 +- 56 6 +- 39 2 6810 2 Dec 04 08:29 LAG2 7 0 25 -24 +- 313 0 +- 194 4 6810 2 Dec 04 16:14 LAG2 18 0 11 -7 +- 44 -3 +- 29 5 6810 2 Dec 04 17:23 LAG1 14 0 12 -10 +- 49 2 +- 23 5 6810 3 Dec 04 12:36 LAG1 17 0 14 -9 +- 45 6 +- 31 2 6810 3 Dec 04 14:16 LAG2 8 0 14 2 +- 76 13 +- 66 5 Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm) 7080 1 Dec 04 16:07 LAG1 18 0 9 -6 +- 16 5 +- 9 2 7080 1 Dec 04 17:13 LAG2 10 0 11 9 +- 21 -7 +- 20 1 7080 1 Dec 04 21:29 LAG2 18 0 2 -1 +- 16 0 +- 14 2 7080 1 Dec 04 22:53 LAG1 7 0 17 17 +- 26 -2 +- 35 3 7080 2 Dec 04 01:35 LAG2 4 0 8 -46 +- 541 -26 +- 259 0 7080 2 Dec 04 14:53 LAG1 9 0 18 16 +- 25 1 +- 20 2 7080 2 Dec 04 15:33 LAG2 13 0 15 22 +- 27 -8 +- 18 3 7080 2 Dec 04 19:29 LAG2 15 0 10 2 +- 18 2 +- 15 9 Station 7090 (Yarragadee) (position fixed, acc. 10 mm) 7090 26 Nov 04 10:25 LAG1 17 0 6 -4 +- 10 4 +- 9 2 7090 26 Nov 04 12:47 LAG2 19 0 3 0 +- 9 0 +- 6 3 7090 26 Nov 04 13:51 LAG1 14 0 6 -3 +- 11 -2 +- 6 2 7090 26 Nov 04 16:51 LAG2 23 0 4 -1 +- 8 2 +- 6 1 7090 27 Nov 04 19:07 LAG2 11 0 9 14 +- 43 3 +- 30 2 7090 27 Nov 04 19:29 LAG1 8 0 8 6 +- 26 -12 +- 27 1 7090 27 Nov 04 22:49 LAG1 14 0 18 -22 +- 16 4 +- 9 6 7090 27 Nov 04 23:27 LAG2 4 0 6 -5 +- 42 -6 +- 26 2 7090 28 Nov 04 11:07 LAG1 16 0 11 -11 +- 10 -1 +- 6 2 7090 28 Nov 04 12:57 LAG2 25 0 7 0 +- 8 -4 +- 5 2 7090 28 Nov 04 15:02 LAG1 4 0 8 -13 +- 62 3 +- 33 2 7090 29 Nov 04 10:03 LAG1 3 0 23 -23 +- 27 -3 +- 153 0 7090 29 Nov 04 11:17 LAG2 15 0 7 -1 +- 11 7 +- 12 4 7090 29 Nov 04 13:19 LAG1 18 0 5 -5 +- 9 0 +- 6 1 7090 29 Nov 04 15:11 LAG2 22 0 6 -5 +- 8 0 +- 6 2 7090 29 Nov 04 16:59 LAG1 7 0 4 0 +- 33 -3 +- 37 2 7090 29 Nov 04 19:33 LAG2 14 0 5 3 +- 12 -3 +- 14 0 7090 29 Nov 04 19:59 LAG1 13 0 3 -2 +- 11 -1 +- 8 2 7090 30 Nov 04 11:51 LAG1 26 0 13 -11 +- 8 -2 +- 4 4 7090 30 Nov 04 13:07 LAG2 21 0 7 -7 +- 9 -2 +- 5 2 7090 30 Nov 04 15:31 LAG1 14 0 15 -12 +- 11 -5 +- 9 2 7090 30 Nov 04 17:25 LAG2 19 0 9 -7 +- 9 -3 +- 7 2 7090 30 Nov 04 18:47 LAG1 5 0 3 -2 +- 55 1 +- 65 0 7090 30 Nov 04 21:43 LAG2 9 0 6 -11 +- 49 -3 +- 30 1 7090 30 Nov 04 22:18 LAG1 5 0 13 -21 +- 36 14 +- 20 2 7090 1 Dec 04 11:25 LAG2 20 0 15 -3 +- 9 13 +- 9 6 7090 1 Dec 04 14:19 LAG1 9 0 14 0 +- 19 8 +- 12 0 7090 1 Dec 04 15:21 LAG2 14 0 6 -7 +- 14 -3 +- 9 1 7090 1 Dec 04 19:41 LAG2 23 0 3 -2 +- 8 -2 +- 6 1 7090 1 Dec 04 20:47 LAG1 14 0 9 0 +- 11 7 +- 9 3 7090 2 Dec 04 12:39 LAG1 19 0 2 1 +- 10 1 +- 6 1 7090 2 Dec 04 13:23 LAG2 19 0 7 -7 +- 9 -2 +- 5 1 7090 2 Dec 04 16:17 LAG1 11 0 3 1 +- 12 1 +- 16 2 7090 2 Dec 04 21:55 LAG2 19 0 16 -14 +- 10 -9 +- 7 4 7090 2 Dec 04 22:56 LAG1 10 0 19 -14 +- 13 9 +- 10 3 Station 7105 (Greenbelt) (position fixed, acc. 10 mm) 7105 27 Nov 04 02:17 LAG1 6 0 8 1 +- 63 6 +- 53 1 7105 27 Nov 04 03:17 LAG2 11 0 2 1 +- 15 0 +- 17 1 7105 28 Nov 04 23:19 LAG1 10 0 3 -1 +- 15 0 +- 10 2 7105 28 Nov 04 23:43 LAG2 3 0 7 -9 +- 94 4 +- 173 0 7105 29 Nov 04 02:52 LAG1 4 0 8 -5 +- 69 4 +- 111 0 7105 29 Nov 04 03:35 LAG2 12 0 12 -20 +- 20 22 +- 26 4 7105 2 Dec 04 01:43 LAG2 18 0 11 -8 +- 9 -7 +- 9 1 7105 2 Dec 04 02:35 LAG1 6 0 5 24 +- 89 -19 +- 71 1 7105 3 Dec 04 00:45 LAG1 21 0 10 -10 +- 9 1 +- 5 2 Station 7110 (Monument Peak) (position fixed, acc. 10 mm) 7110 30 Nov 04 05:19 LAG1 3 0 7 -16 +- 120 42 +- 225 0 7110 30 Nov 04 05:37 LAG2 6 0 6 4 +- 25 -7 +- 32 5 7110 30 Nov 04 19:15 LAG2 3 0 9 -20 +- 96 -16 +- 140 0 7110 1 Dec 04 00:23 LAG1 4 0 7 -10 +- 38 7 +- 45 1 7110 1 Dec 04 16:33 LAG1 4 0 9 36 +- 198 -19 +- 87 5 7110 2 Dec 04 01:26 LAG2 9 0 15 -22 +- 20 -11 +- 12 2 7110 2 Dec 04 02:47 LAG1 4 0 6 77 +- 684 -31 +- 262 3 7110 2 Dec 04 05:51 LAG2 2 0 6 -17 +- 112 143 +- 743 0 7110 2 Dec 04 14:53 LAG1 12 0 7 2 +- 14 3 +- 10 3 7110 2 Dec 04 19:31 LAG2 7 0 14 -13 +- 17 -2 +- 25 3 7110 3 Dec 04 03:39 LAG2 14 0 7 -4 +- 12 2 +- 7 5 7110 3 Dec 04 04:35 LAG1 5 0 11 -4 +- 25 16 +- 58 5 Station 7124 (Papeete) (position fixed, acc. 10 mm) 7124 27 Nov 04 08:53 LAG1 3 0 3 -1 +- 28 -16 +- 134 0 Station 7231 (Wuhan) (position fixed, acc. 50 mm) 7231 1 Dec 04 10:57 LAG2 3 0 16 -8 +- 615 -26 +- 660 1 7231 1 Dec 04 11:11 LAG1 4 0 23 -25 +- 570 -4 +- 302 16 Station 7237 (Changchun) (position fixed, acc. 50 mm) 7237 27 Nov 04 09:35 LAG1 13 0 12 4 +- 43 0 +- 23 12 7237 27 Nov 04 10:21 LAG2 12 0 9 9 +- 52 -2 +- 31 5 7237 28 Nov 04 08:43 LAG2 4 0 26 -34 +- 219 9 +- 224 7 7237 28 Nov 04 11:55 LAG1 6 0 14 -2 +- 63 8 +- 44 7 7237 29 Nov 04 10:37 LAG1 6 0 12 -5 +- 62 11 +- 111 8 7237 29 Nov 04 10:50 LAG2 7 0 8 9 +- 143 -9 +- 114 6 7237 30 Nov 04 09:02 LAG2 4 0 46 -71 +- 505 18 +- 360 3 7237 30 Nov 04 09:09 LAG1 9 0 24 -19 +- 52 10 +- 30 7 7237 1 Dec 04 10:48 LAG2 9 0 15 6 +- 54 7 +- 40 6 7237 1 Dec 04 11:25 LAG1 8 0 17 7 +- 62 6 +- 59 11 7237 2 Dec 04 09:29 LAG2 3 0 13 0 +-2646 -4 +-1176 9 7237 2 Dec 04 09:51 LAG1 14 0 17 14 +- 43 6 +- 29 8 Station 7308 (Tokyo) (position fixed, acc. 50 mm) 7308 1 Dec 04 11:09 LAG2 6 0 20 9 +- 87 25 +- 173 1 7308 1 Dec 04 11:37 LAG1 6 0 15 13 +- 634 -14 +- 328 3 7308 2 Dec 04 10:16 LAG1 6 0 27 22 +- 842 -18 +- 322 11 Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm) 7501 26 Nov 04 18:09 LAG1 8 0 18 -2 +- 41 11 +- 24 6 7501 29 Nov 04 17:33 LAG1 12 0 19 18 +- 27 0 +- 14 3 7501 2 Dec 04 21:39 LAG2 2 0 19 -10 +-1411 17 +- 812 0 7501 3 Dec 04 05:37 LAG2 7 0 10 31 +- 50 20 +- 34 4 Station 7806 (Metsahovi) (position fixed, acc. 30 mm) 7806 27 Nov 04 17:31 LAG1 8 0 24 -18 +- 71 -4 +- 52 3 7806 3 Dec 04 16:11 LAG1 14 0 16 -15 +- 26 3 +- 20 6 Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm) 7810 26 Nov 04 11:15 LAG2 14 0 6 -1 +- 49 -2 +- 27 3 7810 26 Nov 04 11:36 LAG1 11 0 7 -2 +- 58 3 +- 32 2 7810 26 Nov 04 15:00 LAG1 17 0 10 1 +- 44 6 +- 29 2 7810 26 Nov 04 15:29 LAG2 18 0 6 0 +- 43 -3 +- 31 4 7810 27 Nov 04 09:23 LAG2 18 0 9 1 +- 43 -3 +- 26 7 7810 27 Nov 04 10:14 LAG1 16 0 9 -6 +- 52 2 +- 30 3 7810 27 Nov 04 13:25 LAG2 15 0 18 -1 +- 51 10 +- 30 3 7810 27 Nov 04 13:42 LAG1 11 0 9 7 +- 59 -4 +- 34 4 7810 27 Nov 04 17:09 LAG1 13 0 18 0 +- 54 -8 +- 26 3 7810 27 Nov 04 17:35 LAG2 23 0 9 8 +- 39 0 +- 23 5 7810 27 Nov 04 21:03 LAG1 3 0 25 -8 +- 117 -26 +- 153 0 7810 27 Nov 04 21:46 LAG2 6 0 3 -1 +- 76 3 +- 263 2 7810 28 Nov 04 07:57 LAG2 6 0 5 -1 +- 155 -5 +- 212 1 7810 28 Nov 04 09:15 LAG1 8 0 8 -13 +- 111 9 +- 73 3 7810 28 Nov 04 11:41 LAG2 3 0 9 -9 +- 106 -1 +- 97 0 7810 1 Dec 04 18:13 LAG2 18 0 8 3 +- 49 -6 +- 37 4 7810 1 Dec 04 18:45 LAG1 15 0 7 4 +- 56 4 +- 39 4 7810 2 Dec 04 08:29 LAG2 8 0 7 0 +- 283 -4 +- 168 3 7810 2 Dec 04 16:15 LAG2 18 0 7 4 +- 44 -3 +- 29 4 7810 2 Dec 04 17:23 LAG1 13 0 5 0 +- 51 0 +- 24 5 7810 3 Dec 04 12:36 LAG1 17 0 10 0 +- 45 6 +- 31 2 7810 3 Dec 04 14:17 LAG2 9 0 10 7 +- 66 8 +- 60 3 Station 7825 (Mount Stromlo) (position solved, acc. 10 mm) 7825 26 Nov 04 09:23 LAG2 7 0 11 11 +- 16 -1 +- 51 4 7825 26 Nov 04 10:05 LAG1 24 0 6 -4 +- 8 0 +- 4 4 7825 26 Nov 04 12:59 LAG2 26 0 3 -1 +- 8 0 +- 4 3 7825 26 Nov 04 13:53 LAG1 9 0 3 0 +- 22 -1 +- 20 2 7825 26 Nov 04 16:59 LAG1 14 0 6 2 +- 11 -4 +- 10 2 7825 26 Nov 04 17:27 LAG2 19 0 3 -1 +- 11 1 +- 8 2 7825 26 Nov 04 20:19 LAG1 22 0 10 -6 +- 9 4 +- 4 2 7825 26 Nov 04 21:24 LAG2 24 0 9 0 +- 8 5 +- 5 1 7825 27 Nov 04 09:23 LAG1 3 0 20 -145 +- 709 53 +- 304 6 7825 27 Nov 04 11:11 LAG2 19 0 9 8 +- 9 2 +- 7 2 7825 27 Nov 04 12:39 LAG1 4 0 15 5 +- 68 -20 +- 69 5 7825 27 Nov 04 19:31 LAG2 24 0 2 1 +- 8 0 +- 5 1 7825 27 Nov 04 22:39 LAG1 17 0 4 3 +- 11 0 +- 8 2 7825 27 Nov 04 23:40 LAG2 15 0 7 6 +- 12 -6 +- 11 2 7825 28 Nov 04 09:27 LAG2 13 0 4 -2 +- 11 -3 +- 18 3 7825 28 Nov 04 10:55 LAG1 19 0 5 1 +- 9 0 +- 5 5 7825 28 Nov 04 13:11 LAG2 28 0 10 3 +- 7 -5 +- 4 3 7825 28 Nov 04 14:27 LAG1 14 0 13 12 +- 11 -4 +- 10 3 7825 28 Nov 04 17:41 LAG2 18 0 2 0 +- 11 0 +- 8 2 7825 28 Nov 04 21:05 LAG1 20 0 19 -11 +- 9 7 +- 5 5 7825 28 Nov 04 21:44 LAG2 21 0 14 -2 +- 9 9 +- 6 3 7825 29 Nov 04 13:15 LAG1 14 0 6 -4 +- 13 2 +- 10 5 7825 29 Nov 04 19:57 LAG2 16 0 5 0 +- 13 2 +- 8 3 7825 30 Nov 04 12:11 LAG1 7 0 13 15 +- 76 -1 +- 35 3 7825 30 Nov 04 15:13 LAG1 11 0 17 13 +- 12 -8 +- 12 6 7825 30 Nov 04 17:43 LAG2 24 0 5 4 +- 8 -1 +- 5 2 7825 30 Nov 04 18:31 LAG1 18 0 6 3 +- 10 -3 +- 6 2 7825 30 Nov 04 21:47 LAG2 19 0 8 1 +- 9 3 +- 5 5 7825 30 Nov 04 22:07 LAG1 7 0 9 4 +- 17 5 +- 14 1 7825 1 Dec 04 15:44 LAG2 23 0 9 -6 +- 8 -4 +- 6 4 7825 1 Dec 04 17:11 LAG1 16 0 8 -7 +- 10 0 +- 8 2 7825 1 Dec 04 19:55 LAG2 23 0 10 8 +- 8 1 +- 4 4 7825 1 Dec 04 20:49 LAG1 15 0 11 -12 +- 18 3 +- 9 8 7825 2 Dec 04 08:58 LAG1 18 0 10 9 +- 9 0 +- 5 5 7825 2 Dec 04 09:49 LAG2 10 0 8 -9 +- 23 -2 +- 24 2 7825 2 Dec 04 12:37 LAG1 2 0 0 -25 +-1371 -14 +- 816 0 7825 2 Dec 04 22:03 LAG2 19 0 4 -3 +- 9 0 +- 6 2 7825 3 Dec 04 07:55 LAG1 6 0 21 0 +- 28 -18 +- 25 3 7825 3 Dec 04 11:24 LAG1 1 0 37 0 +- 0 0 +- 0 0 Station 7832 (Riyad) (position solved, acc. 20 mm) 7832 27 Nov 04 03:29 LAG1 3 0 17 28 +- 123 18 +- 179 0 7832 28 Nov 04 15:29 LAG1 6 0 4 -7 +- 127 -2 +- 67 3 7832 28 Nov 04 16:09 LAG2 7 0 8 10 +- 116 1 +- 72 2 7832 29 Nov 04 04:15 LAG1 10 0 16 11 +- 21 6 +- 16 2 7832 29 Nov 04 07:55 LAG1 6 0 10 1 +- 81 3 +- 66 8 7832 29 Nov 04 10:01 LAG2 7 0 15 -14 +- 25 7 +- 63 2 7832 29 Nov 04 17:49 LAG1 6 0 11 7 +- 27 -18 +- 54 2 7832 29 Nov 04 18:17 LAG2 16 0 13 13 +- 17 2 +- 18 2 7832 30 Nov 04 02:51 LAG1 5 0 10 22 +- 84 17 +- 99 4 7832 30 Nov 04 06:35 LAG1 7 0 10 -22 +- 57 12 +- 31 3 7832 30 Nov 04 08:01 LAG2 6 0 13 -17 +- 34 -19 +- 61 0 7832 30 Nov 04 12:15 LAG2 8 0 12 3 +- 24 8 +- 21 4 7832 30 Nov 04 13:09 LAG1 7 0 17 12 +- 68 3 +- 53 3 7832 30 Nov 04 16:17 LAG1 7 0 21 -29 +- 82 -5 +- 49 2 7832 30 Nov 04 16:31 LAG2 6 0 23 -12 +- 27 -11 +- 18 1 7832 1 Dec 04 04:59 LAG1 5 0 3 1 +- 29 0 +- 20 3 7832 1 Dec 04 10:21 LAG2 9 0 20 -29 +- 32 28 +- 50 3 7832 1 Dec 04 14:28 LAG2 2 0 7 50 +- 348 33 +- 222 0 7832 1 Dec 04 14:51 LAG1 4 0 11 -44 +- 518 -14 +- 209 6 Station 7835 (Grasse) (position fixed, acc. 30 mm) 7835 30 Nov 04 16:58 LAG1 3 0 9 5 +- 332 2 +- 225 1 Station 7837 (Shanghai Observatory) (position fixed, acc. 50 mm) 7837 27 Nov 04 09:45 LAG1 10 0 34 -37 +- 63 9 +- 52 13 7837 27 Nov 04 10:28 LAG2 2 0 16 -19 +- 200 -4 +- 189 0 7837 27 Nov 04 13:09 LAG1 10 0 34 -31 +- 51 -15 +- 65 18 7837 27 Nov 04 14:33 LAG2 5 0 46 -9 +- 94 116 +- 331 23 7837 28 Nov 04 11:47 LAG1 14 0 35 -31 +- 41 -7 +- 34 6 7837 28 Nov 04 12:35 LAG2 16 0 13 -10 +- 41 9 +- 34 6 7837 29 Nov 04 10:37 LAG1 5 0 76 65 +- 145 12 +- 154 4 7837 29 Nov 04 10:46 LAG2 4 0 67 75 +- 191 13 +- 273 5 Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm) 7838 27 Nov 04 02:23 LAG2 13 0 14 33 +- 74 -12 +- 40 4 7838 27 Nov 04 06:09 LAG2 22 0 11 2 +- 21 -6 +- 17 6 7838 27 Nov 04 09:21 LAG1 26 0 20 19 +- 18 -2 +- 9 3 7838 27 Nov 04 10:19 LAG2 28 0 30 27 +- 18 7 +- 10 2 7838 28 Nov 04 04:31 LAG2 10 0 6 6 +- 50 -3 +- 52 4 7838 28 Nov 04 08:03 LAG1 16 0 21 15 +- 27 -6 +- 17 3 7838 28 Nov 04 08:37 LAG2 17 0 22 20 +- 24 4 +- 21 2 7838 28 Nov 04 11:37 LAG1 21 0 16 -15 +- 20 -1 +- 15 4 7838 28 Nov 04 12:31 LAG2 20 0 13 -12 +- 21 -3 +- 21 4 7838 29 Nov 04 00:17 LAG1 16 0 21 23 +- 29 -1 +- 17 3 7838 29 Nov 04 02:15 LAG2 22 0 23 22 +- 20 1 +- 13 4 7838 29 Nov 04 06:31 LAG2 13 0 10 6 +- 37 13 +- 37 3 7838 29 Nov 04 06:59 LAG1 14 0 23 27 +- 32 -6 +- 23 4 7838 29 Nov 04 10:11 LAG1 18 0 14 16 +- 26 5 +- 15 3 7838 29 Nov 04 10:49 LAG2 19 0 29 20 +- 28 8 +- 19 2 7838 30 Nov 04 00:17 LAG2 22 0 36 29 +- 20 -10 +- 13 5 7838 30 Nov 04 02:21 LAG1 12 0 25 25 +- 28 -3 +- 28 4 7838 30 Nov 04 04:27 LAG2 23 0 27 10 +- 20 -19 +- 15 5 7838 1 Dec 04 01:01 LAG1 15 0 14 14 +- 26 -2 +- 18 4 7838 1 Dec 04 02:33 LAG2 21 0 21 19 +- 21 2 +- 15 3 7838 1 Dec 04 06:55 LAG2 11 0 26 9 +- 28 29 +- 36 7 7838 1 Dec 04 10:45 LAG2 13 0 12 27 +- 69 17 +- 42 6 7838 1 Dec 04 11:15 LAG1 16 0 18 12 +- 30 5 +- 22 2 7838 2 Dec 04 04:38 LAG2 18 0 16 8 +- 25 -8 +- 21 5 7838 2 Dec 04 06:19 LAG1 15 0 16 13 +- 24 -6 +- 19 4 7838 2 Dec 04 08:49 LAG2 24 0 33 34 +- 20 9 +- 13 4 7838 2 Dec 04 09:41 LAG1 23 0 32 32 +- 20 -1 +- 10 4 7838 3 Dec 04 01:55 LAG1 10 0 7 9 +- 45 -3 +- 38 1 7838 3 Dec 04 02:43 LAG2 18 0 16 16 +- 23 0 +- 18 5 7838 3 Dec 04 06:58 LAG2 14 0 24 18 +- 27 20 +- 25 5 Station 7839 (Graz) (position fixed, acc. 10 mm) 7839 26 Nov 04 04:20 LAG1 19 0 16 6 +- 10 -9 +- 7 5 7839 26 Nov 04 07:27 LAG2 15 0 12 2 +- 11 -10 +- 9 1 7839 26 Nov 04 08:11 LAG1 15 0 5 -5 +- 11 0 +- 5 0 7839 26 Nov 04 11:19 LAG2 11 0 9 -8 +- 12 -1 +- 6 3 7839 26 Nov 04 11:34 LAG1 8 0 8 -2 +- 16 3 +- 9 6 7839 26 Nov 04 14:56 LAG1 8 0 12 1 +- 16 5 +- 7 1 7839 26 Nov 04 15:23 LAG2 14 0 8 0 +- 11 -4 +- 5 1 7839 26 Nov 04 18:27 LAG1 11 0 8 -2 +- 12 -2 +- 5 4 7839 26 Nov 04 19:29 LAG2 16 0 9 7 +- 10 4 +- 7 0 7839 27 Nov 04 17:45 LAG1 5 0 27 62 +- 431 -32 +- 154 1 7839 27 Nov 04 17:49 LAG2 19 0 2 0 +- 13 0 +- 8 1 Station 7840 (Herstmonceux) (position fixed, acc. 20 mm) 7840 26 Nov 04 15:49 LAG2 4 0 3 12 +- 168 -10 +- 146 2 7840 26 Nov 04 18:37 LAG1 4 0 6 6 +- 36 0 +- 21 1 7840 28 Nov 04 12:29 LAG1 13 0 3 0 +- 18 2 +- 13 2 7840 29 Nov 04 18:07 LAG2 2 0 4 10 +- 221 -23 +- 893 0 7840 29 Nov 04 18:23 LAG1 9 0 6 18 +- 68 -7 +- 36 2 7840 30 Nov 04 09:53 LAG1 12 0 7 -7 +- 19 2 +- 12 3 7840 30 Nov 04 11:48 LAG2 19 0 7 -2 +- 15 -4 +- 10 2 7840 30 Nov 04 13:19 LAG1 13 0 6 3 +- 18 2 +- 15 3 7840 30 Nov 04 15:50 LAG2 13 0 12 3 +- 27 -6 +- 19 2 7840 30 Nov 04 16:43 LAG1 10 0 3 3 +- 29 0 +- 22 2 7840 2 Dec 04 20:13 LAG2 15 0 4 0 +- 18 -4 +- 20 2 7840 2 Dec 04 21:24 LAG1 6 0 3 0 +- 57 0 +- 84 3 Station 7941 (Matera) (position solved, acc. 10 mm) 7941 26 Nov 04 08:10 LAG1 14 0 4 3 +- 12 1 +- 8 3 7941 26 Nov 04 11:29 LAG2 13 0 2 -1 +- 11 1 +- 13 1 7941 26 Nov 04 15:05 LAG1 6 0 8 15 +- 31 14 +- 34 0 7941 29 Nov 04 14:35 LAG2 3 0 4 238 +-1488 -103 +- 650 0 7941 2 Dec 04 07:05 LAG1 13 0 14 10 +- 11 -5 +- 5 3 7941 2 Dec 04 08:29 LAG2 6 0 8 2 +- 98 -6 +- 54 2 7941 2 Dec 04 12:05 LAG2 13 0 4 -6 +- 17 -3 +- 14 2 7941 2 Dec 04 13:59 LAG1 10 0 10 -8 +- 13 4 +- 15 1 Station 8834 (Wettzell) (position fixed, acc. 10 mm) 8834 26 Nov 04 04:37 LAG1 4 0 8 -16 +- 70 -17 +- 119 2 8834 26 Nov 04 08:09 LAG1 5 0 27 -18 +- 123 4 +- 61 0 8834 29 Nov 04 11:23 LAG1 5 2 24 -22 +- 70 -2 +- 80 1 8834 29 Nov 04 13:47 LAG2 6 0 24 -20 +- 105 1 +- 58 1 8834 29 Nov 04 14:41 LAG1 6 0 16 -16 +- 17 1 +- 25 3 8834 29 Nov 04 18:21 LAG2 5 0 12 -17 +- 128 4 +- 79 5 8834 30 Nov 04 06:01 LAG1 22 0 13 -8 +- 8 -2 +- 4 9 8834 30 Nov 04 07:51 LAG2 14 0 23 -16 +- 11 -15 +- 8 4 8834 30 Nov 04 10:15 LAG1 3 0 25 -76 +- 468 20 +- 190 1 8834 30 Nov 04 11:43 LAG2 17 0 14 -22 +- 16 -9 +- 9 5 8834 30 Nov 04 13:11 LAG1 13 0 17 -12 +- 11 7 +- 7 3 8834 30 Nov 04 15:53 LAG2 9 0 5 -18 +- 62 -8 +- 33 2 8834 30 Nov 04 16:45 LAG1 8 0 19 -18 +- 14 2 +- 15 3 8834 30 Nov 04 19:59 LAG2 8 0 14 -24 +- 32 -14 +- 36 3 8834 30 Nov 04 20:43 LAG1 5 0 14 -32 +- 144 13 +- 99 2 8834 1 Dec 04 13:59 LAG2 17 0 17 -10 +- 10 7 +- 6 4 8834 2 Dec 04 07:01 LAG1 21 0 13 -5 +- 9 -4 +- 5 8 -------------------------------------------------------------------------------- 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 040701 - 041105 0/ 15/ 0 0/ 17/ 0 32 1831 LVIL 040815 - 041105 0/ 21/ 0 0/ 24/ 0 45 1864 MD2LAS 040701 - 041201 0/ 81/ 0 0/ 70/ 0 151 1873 SIMLAS 040703 - 040813 0/ 25/ 0 0/ 15/ 0 40 1884 RIGLAS 040712 - 041116 0/ 37/ 1 0/ 18/ 2 58 1893 CRMLAS 040705 - 041012 0/ 45/ 0 0/ 35/ 0 80 6405 TIGO 040710 - 041124 2/ 4/ 0 2/ 2/ 0 10 6810 ZIMLAT 040805 - 041204 113/ 69/ 11 53/ 80/ 11 337 7080 MLRS25 040701 - 041202 33/ 38/ 0 33/ 51/ 3 158 7090 ML0514 040716 - 041202 76/204/ 11 79/112/ 16 498 7105 ML0725 040701 - 041203 0/ 66/ 2 1/ 73/ 5 147 7110 ML0414 040701 - 041203 58/100/ 9 47/100/ 14 328 7124 ML0819 040705 - 041127 0/ 30/ 0 0/ 7/ 0 37 7231 WUHA01 040701 - 041201 0/ 7/ 0 0/ 19/ 0 26 7237 CHALAS 040702 - 041202 0/116/ 0 0/130/ 1 247 7249 BEJLAS 040701 - 041110 0/ 55/ 0 0/ 73/ 0 128 7308 CRLLAS 041201 - 041202 0/ 2/ 0 0/ 1/ 0 3 7355 TROS02 040702 - 040829 0/ 37/ 0 0/ 29/ 0 66 7405 TIGO 040710 - 041124 2/ 6/ 0 0/ 3/ 0 11 7501 ML0616 040701 - 041203 12/ 18/ 1 53/ 54/ 4 142 7604 BREF 041017 - 041021 0/ 1/ 0 0/ 2/ 0 3 7806 METLAS 040720 - 041203 0/ 16/ 0 0/ 10/ 0 26 7810 ZIMLAT 040701 - 041204 166/ 95/ 17 79/100/ 14 471 7811 POLLAS 040706 - 041124 0/ 46/ 0 0/ 55/ 0 101 7824 SPNLAS 040701 - 041124 0/ 68/ 0 0/ 72/ 0 140 7825 STL3 040807 - 041203 47/ 74/ 11 64/ 41/ 7 244 7832 SALRO 040702 - 041201 85/158/ 8 101/189/ 21 562 7835 GRASSE 040702 - 041130 0/ 33/ 0 0/ 23/ 1 57 7836 GFZLAS 040701 - 040701 0/ 1/ 0 0/ 0/ 0 1 7837 CHILAS 040704 - 041129 0/ 76/ 0 0/105/ 1 182 7838 SHOLAS 040701 - 041203 34/ 86/ 3 53/102/ 4 282 7839 AUSLAS 040701 - 041127 120/116/ 23 53/113/ 18 443 7840 RGOLAS 040701 - 041202 70/ 70/ 14 36/ 63/ 8 261 7841 GFZLA3 040702 - 041125 15/ 52/ 8 8/ 53/ 5 141 7845 GRASLL 040705 - 040920 11/ 14/ 0 3/ 12/ 1 41 7941 MLROnn 040701 - 041202 63/ 47/ 7 53/ 41/ 2 213 8834 WLRS01 040701 - 041202 156/ 99/ 18 86/115/ 13 487 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 041127.0 200.2 +/- 0.1 302.4 +/- 0.1 -32543.28 +/- 0.01 041128.0 200.0 +/- 0.1 300.0 +/- 0.1 -32543.38 +/- 0.02 041129.0 199.6 +/- 0.1 297.8 +/- 0.1 -32543.42 +/- 0.03 041130.0 198.4 +/- 0.1 296.2 +/- 0.1 -32543.46 +/- 0.03 041201.0 198.0 +/- 0.1 293.6 +/- 0.1 -32543.48 +/- 0.04 041202.0 196.1 +/- 0.1 291.3 +/- 0.1 -32543.72 +/- 0.04 041203.0 194.5 +/- 0.1 289.4 +/- 0.1 -32544.13 +/- 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, 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 ******************************************************************************** |