| Date: | 2001-05-02 09:45:00 | |
| Sender: | Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 877: Delft QL Report, May 02, 2001 | |
| Author: | Ron Noomen, DEOS, Delft, The Netherlands | |
| Content: | ******************************************************************************** SLR Electronic Report 2001-05-02 09:45:00 UTC Message No. 877 ******************************************************************************** Author: Ron Noomen, DEOS, Delft, The Netherlands Subject: Delft QL Report, May 02, 2001 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS May 1, 2001 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, Apr 30, 2001. Questions and comments should be addressed to: K.F. Wakker Delft University of Technology Faculty of Aerospace Engineering Delft Institute for Earth-Oriented Space Research Kluyverweg 1 NL-2629 HS Delft The Netherlands Telephone: +31-(0)15-2782065/2785377 Telefax : +31-(0)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, Apr 30, 2001. 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 ------------------------------------------------------------------------------ 1868 Komsomolsk-na-Amure, Russia 010309 - 010416 4 - 7080 McDonald Obs., Fort Davis, TX 010423 - 010429 11 9 7090 Yarragadee, Australia 010422 - 010430 13 10 7105 Greenbelt, Maryland 010423 - 010430 21 11 7110 Monument Peak, California 010423 - 010430 12 3 7237 Changchun, China 010423 - 010428 7 - 7249 Beijing, China 010416 - 010425 6 - 7339 Tateyama, Japan 010424 - 010424 - 1 7403 Arequipa, Peru (TLRS-3) 010423 - 010430 3 7 7501 Hartebeesthoek, SA (MOB-6) 010422 - 010429 6 10 7806 Metsahovi, Finland 010424 - 010425 2 - 7810 Zimmerwald, Switzerland 010422 - 010430 7 1 7811 Borowiec, Poland 010426 - 010430 4 - 7820 Kunming, China 010421 - 010430 3 1 7824 San Fernando, Spain 010422 - 010430 7 - 7832 Riyad, Saudi Arabia 010425 - 010425 - 1 7835 Grasse, France 010420 - 010429 12 3 7836 Potsdam, Germany 010423 - 010428 6 - 7840 Herstmonceux, United Kingdom 010423 - 010428 9 8 7845 Grasse, France (LLR) 010423 - 010425 3 2 7849 Mount Stromlo, Australia 010423 - 010430 5 9 ------ ------ --- --- TOTAL 010309 - 010430 141 76 ------------------------------------------------------------------------------ B. ANALYSIS RESULTS The analysis is based on two orbit solutions using global quick-look normal points that cover a period of 10 days which are computed simultaneously. This week´s data interval runs from Thu, Apr 19, 2001 to Sun, Apr 29, 2001. The measurement and dynamic models used in this analysis are close to the IERS Standard. The overall model is referred to as QLDACMOD9. The details of this model can be obtained on request. The terrestrial reference frame is provided by a special version of the SSC(DUT) 93L05 station coordinates solution. The general statistics and results of this week´s analysis are thus: ----------------------------------------------------------------------- Satellite LAGEOS-1 LAGEOS-2 Number of Stations 20 15 Number of Passes 151/149 87/ 86 Number of Normal Points 1527/1486 1066/1040 RMS of Fit (mm) 30 25 ----------------------------------------------------------------------- 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 7080 (McDonald Obs.) (Position fixed, acc. 20 mm) 7080 19 Apr 01 08:52 LAG1 11 0 38 -18 +- 40 15 +- 26 8 7080 19 Apr 01 12:30 LAG1 7 0 49 57 +- 61 16 +- 83 4 7080 19 Apr 01 12:49 LAG2 3 0 47 64 +- 475 18 +- 500 1 7080 20 Apr 01 07:35 LAG1 12 0 26 -11 +- 35 17 +- 31 2 7080 20 Apr 01 11:08 LAG1 7 0 23 29 +- 54 14 +- 63 4 7080 23 Apr 01 07:05 LAG1 5 0 34 19 +- 180 -13 +- 153 3 7080 23 Apr 01 10:38 LAG1 12 0 4 -2 +- 40 0 +- 28 3 7080 23 Apr 01 13:03 LAG2 9 0 12 -15 +- 151 -2 +- 92 3 7080 23 Apr 01 21:33 LAG2 17 0 16 -9 +- 28 10 +- 20 8 7080 23 Apr 01 23:03 LAG1 19 0 8 6 +- 27 -4 +- 15 2 7080 24 Apr 01 01:41 LAG2 6 0 14 21 +- 78 14 +- 106 3 7080 24 Apr 01 09:21 LAG1 10 0 9 -2 +- 57 7 +- 38 3 7080 24 Apr 01 12:58 LAG1 6 0 29 44 +- 122 -18 +- 139 2 7080 24 Apr 01 15:13 LAG2 13 0 8 0 +- 30 3 +- 19 6 7080 24 Apr 01 19:41 LAG2 10 0 5 -3 +- 37 -2 +- 55 2 7080 24 Apr 01 21:45 LAG1 10 0 23 -19 +- 34 19 +- 42 2 7080 24 Apr 01 23:39 LAG2 5 0 20 -4 +- 114 9 +- 64 2 7080 25 Apr 01 07:57 LAG1 5 0 26 28 +- 55 12 +- 116 1 7080 25 Apr 01 11:19 LAG1 14 0 7 5 +- 28 -1 +- 22 4 7080 25 Apr 01 13:21 LAG2 10 0 34 -45 +- 58 -12 +- 45 4 7080 26 Apr 01 06:39 LAG1 2 0 16 -42 +- 736 -45 +-1244 0 7080 27 Apr 01 13:45 LAG2 10 0 4 -2 +- 35 -1 +- 44 2 7080 27 Apr 01 21:30 LAG1 3 0 46 110 +- 706 -38 +- 417 0 7080 28 Apr 01 00:49 LAG1 5 0 33 -20 +- 61 -14 +- 52 2 Station 7090 (Yarragadee) (Position fixed, acc. 10 mm) 7090 19 Apr 01 00:25 LAG1 5 0 10 -4 +- 90 9 +- 130 2 7090 19 Apr 01 06:57 LAG1 19 0 17 -15 +- 23 7 +- 13 0 7090 19 Apr 01 10:37 LAG1 10 0 68 67 +- 31 5 +- 54 1 7090 19 Apr 01 10:55 LAG2 12 0 61 69 +- 32 -16 +- 21 8 7090 19 Apr 01 14:49 LAG2 20 0 16 -13 +- 21 -6 +- 17 3 7090 19 Apr 01 19:05 LAG2 9 0 3 3 +- 169 0 +- 103 2 7090 19 Apr 01 19:23 LAG1 23 0 45 -41 +- 20 9 +- 12 10 7090 19 Apr 01 22:57 LAG1 10 0 22 16 +- 64 23 +- 42 2 7090 19 Apr 01 23:21 LAG2 10 0 20 -18 +- 31 -10 +- 24 2 7090 20 Apr 01 05:51 LAG1 7 0 45 -61 +- 59 17 +- 43 3 7090 21 Apr 01 07:49 LAG1 10 0 13 -6 +- 30 -12 +- 30 3 7090 21 Apr 01 11:17 LAG2 11 0 30 45 +- 43 -18 +- 28 2 7090 21 Apr 01 15:21 LAG2 17 0 8 -11 +- 34 8 +- 28 2 7090 22 Apr 01 06:35 LAG1 6 0 20 -19 +- 46 -3 +- 67 0 7090 22 Apr 01 09:27 LAG2 9 0 30 39 +- 48 -21 +- 69 3 7090 22 Apr 01 09:57 LAG1 10 0 10 0 +- 31 -9 +- 29 1 7090 22 Apr 01 13:15 LAG2 15 0 24 12 +- 32 -16 +- 17 2 7090 24 Apr 01 07:11 LAG1 8 0 27 -34 +- 70 -5 +- 50 2 7090 25 Apr 01 09:37 LAG1 10 0 9 20 +- 70 -16 +- 52 2 7090 25 Apr 01 11:25 LAG2 23 1 34 -15 +- 20 -17 +- 13 17 7090 25 Apr 01 15:37 LAG2 25 0 41 2 +- 19 -35 +- 16 0 7090 26 Apr 01 08:03 LAG1 14 1 9 8 +- 32 -6 +- 22 2 7090 26 Apr 01 10:03 LAG2 8 0 65 -84 +- 152 12 +- 96 5 7090 26 Apr 01 13:41 LAG2 17 0 21 12 +- 25 -14 +- 16 1 7090 26 Apr 01 17:53 LAG2 22 0 25 -24 +- 20 2 +- 15 6 7090 26 Apr 01 20:31 LAG1 21 0 30 -10 +- 21 16 +- 11 4 7090 26 Apr 01 21:59 LAG2 9 0 32 88 +- 140 32 +- 75 2 7090 27 Apr 01 03:29 LAG1 4 0 9 -10 +- 92 5 +- 183 4 7090 27 Apr 01 06:33 LAG1 22 0 8 5 +- 20 2 +- 10 2 7090 27 Apr 01 10:21 LAG1 8 0 21 -14 +- 42 -17 +- 79 0 7090 27 Apr 01 11:35 LAG2 26 0 10 -8 +- 18 -4 +- 10 3 7090 27 Apr 01 22:55 LAG1 4 0 21 -21 +- 87 -1 +- 182 1 7090 28 Apr 01 05:23 LAG1 4 0 62 51 +- 150 -13 +- 168 1 Station 7105 (Greenbelt) (Position fixed, acc. 10 mm) 7105 19 Apr 01 02:23 LAG1 3 0 6 -12 +- 418 6 +- 349 3 7105 19 Apr 01 05:25 LAG1 12 0 3 1 +- 28 -1 +- 25 2 7105 19 Apr 01 08:47 LAG1 21 0 18 -2 +- 22 10 +- 12 4 7105 20 Apr 01 00:53 LAG1 10 0 9 13 +- 42 -7 +- 29 2 7105 23 Apr 01 07:03 LAG1 3 0 38 22 +- 258 -15 +- 247 1 7105 24 Apr 01 05:43 LAG1 12 0 17 0 +- 33 -10 +- 20 2 7105 24 Apr 01 09:15 LAG1 6 0 20 -20 +- 40 -4 +- 75 1 7105 26 Apr 01 03:05 LAG1 4 0 7 -1 +- 166 -9 +- 182 0 7105 26 Apr 01 06:21 LAG1 20 0 13 -6 +- 22 -5 +- 12 3 7105 26 Apr 01 09:56 LAG1 18 0 36 -33 +- 23 -5 +- 18 5 7105 26 Apr 01 11:49 LAG2 13 0 19 -3 +- 27 19 +- 28 5 7105 26 Apr 01 16:11 LAG2 4 0 23 -22 +- 345 0 +- 257 1 7105 26 Apr 01 20:07 LAG2 9 0 32 -32 +- 32 -3 +- 42 2 7105 26 Apr 01 22:29 LAG1 9 0 13 -17 +- 50 5 +- 37 2 7105 27 Apr 01 00:07 LAG2 8 0 15 -19 +- 43 10 +- 37 4 7105 27 Apr 01 01:41 LAG1 13 0 14 -11 +- 29 -12 +- 25 1 7105 27 Apr 01 05:17 LAG1 11 0 11 22 +- 57 -11 +- 35 2 7105 27 Apr 01 08:26 LAG1 19 0 38 -37 +- 22 0 +- 13 7 7105 27 Apr 01 14:11 LAG2 5 0 10 19 +- 187 -21 +- 150 5 7105 27 Apr 01 21:01 LAG1 11 0 11 2 +- 30 -10 +- 27 1 7105 28 Apr 01 00:23 LAG1 15 0 51 -16 +- 25 -27 +- 15 2 7105 28 Apr 01 03:47 LAG1 11 0 61 47 +- 30 -29 +- 31 2 7105 28 Apr 01 07:08 LAG1 15 0 23 12 +- 24 -12 +- 14 2 7105 28 Apr 01 10:54 LAG1 4 0 155 -152 +- 58 16 +- 187 4 7105 28 Apr 01 11:51 LAG2 21 0 19 6 +- 20 5 +- 13 15 7105 28 Apr 01 15:59 LAG2 12 0 23 -19 +- 35 -23 +- 28 2 7105 28 Apr 01 20:11 LAG2 17 0 44 -38 +- 25 -5 +- 16 10 Station 7110 (Monument Peak) (Position fixed, acc. 10 mm) 7110 23 Apr 01 10:29 LAG1 17 0 27 -26 +- 23 4 +- 13 6 7110 24 Apr 01 09:15 LAG1 8 1 58 -42 +- 76 14 +- 61 3 7110 25 Apr 01 03:54 LAG2 2 0 57 36 +- 407 38 +- 731 0 7110 25 Apr 01 04:42 LAG1 7 0 11 4 +- 36 12 +- 55 6 7110 25 Apr 01 11:21 LAG1 12 0 23 -19 +- 29 4 +- 19 3 7110 27 Apr 01 05:40 LAG1 2 0 6 -7 +- 569 0 +- 600 0 7110 27 Apr 01 12:05 LAG1 22 0 39 -38 +- 20 1 +- 12 7 7110 27 Apr 01 13:31 LAG2 10 0 38 -56 +- 74 -16 +- 57 2 7110 28 Apr 01 02:09 LAG2 11 0 17 -10 +- 42 19 +- 36 4 7110 28 Apr 01 04:11 LAG1 10 0 26 -20 +- 32 -14 +- 38 2 7110 28 Apr 01 23:29 LAG1 3 0 2 0 +- 57 8 +- 288 1 Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm) 7210 19 Apr 01 06:51 LAG2 12 0 50 -45 +- 31 -25 +- 33 9 7210 20 Apr 01 11:20 LAG1 3 0 20 3 +- 168 27 +- 194 4 Station 7237 (Changchun) (Position fixed, acc. 50 mm) 7237 19 Apr 01 13:31 LAG1 4 0 46 -70 +- 328 25 +- 311 6 7237 19 Apr 01 16:53 LAG1 9 0 53 -92 +- 144 27 +- 82 9 7237 21 Apr 01 14:13 LAG1 9 0 60 -66 +- 116 5 +- 85 7 7237 21 Apr 01 17:25 LAG1 17 0 21 -19 +- 43 0 +- 25 9 7237 23 Apr 01 18:33 LAG1 6 0 14 -2 +- 384 6 +- 191 9 7237 25 Apr 01 12:09 LAG1 9 0 16 15 +- 83 19 +- 77 7 7237 25 Apr 01 15:23 LAG1 8 0 46 -44 +- 62 1 +- 27 11 7237 25 Apr 01 18:51 LAG1 9 0 14 3 +- 59 -4 +- 25 10 7237 26 Apr 01 17:37 LAG1 9 0 32 -30 +- 101 0 +- 69 6 7237 28 Apr 01 15:11 LAG1 5 0 27 15 +- 132 13 +- 189 14 7237 28 Apr 01 18:43 LAG1 7 0 10 -1 +- 179 6 +- 115 5 Station 7249 (Beijing) (Position fixed, acc. 50 mm) 7249 20 Apr 01 18:41 LAG1 16 0 42 -39 +- 43 4 +- 25 10 7249 21 Apr 01 17:31 LAG1 12 1 51 -4 +- 52 28 +- 82 48 7249 23 Apr 01 14:57 LAG1 7 0 21 -9 +- 68 4 +- 107 19 7249 23 Apr 01 18:13 LAG1 14 0 39 -34 +- 46 12 +- 33 4 7249 25 Apr 01 12:21 LAG1 6 0 36 33 +- 75 -13 +- 72 17 Station 7339 (Tateyama) (Position fixed, acc. 20 mm) 7339 24 Apr 01 00:53 LAG2 7 0 22 -24 +- 67 3 +- 84 0 Station 7403 (Arequipa) (Position fixed, acc. 10 mm) 7403 19 Apr 01 04:00 LAG2 5 0 50 -49 +- 55 -3 +- 176 1 7403 19 Apr 01 08:19 LAG2 13 0 22 24 +- 29 16 +- 35 1 7403 20 Apr 01 01:48 LAG2 11 0 22 -20 +- 28 -10 +- 26 2 7403 20 Apr 01 06:23 LAG2 10 0 12 -10 +- 37 23 +- 60 3 7403 20 Apr 01 07:01 LAG1 9 0 13 4 +- 37 16 +- 44 5 7403 23 Apr 01 04:35 LAG2 7 0 18 19 +- 62 -4 +- 147 2 7403 23 Apr 01 06:43 LAG1 5 0 18 21 +- 123 -4 +- 148 3 7403 23 Apr 01 08:49 LAG2 10 0 10 12 +- 36 4 +- 35 1 7403 23 Apr 01 09:54 LAG1 7 0 21 30 +- 112 5 +- 69 2 7403 24 Apr 01 02:25 LAG2 13 0 25 24 +- 32 1 +- 35 3 7403 24 Apr 01 06:51 LAG2 18 0 8 6 +- 24 -5 +- 31 4 7403 24 Apr 01 08:29 LAG1 17 0 32 21 +- 23 13 +- 11 4 7403 25 Apr 01 04:37 LAG2 15 0 19 16 +- 25 -10 +- 46 2 7403 25 Apr 01 08:59 LAG2 8 0 12 8 +- 69 12 +- 46 2 Station 7501 (Hartebeesthoek) (Position solved, acc. 10 mm) 7501 20 Apr 01 20:45 LAG2 13 0 15 -21 +- 39 7 +- 30 2 7501 22 Apr 01 16:59 LAG2 7 0 9 11 +- 67 -2 +- 55 0 7501 22 Apr 01 20:53 LAG2 15 0 18 5 +- 26 13 +- 23 2 7501 23 Apr 01 06:09 LAG1 3 0 3 3 +- 354 0 +- 416 0 7501 23 Apr 01 12:35 LAG1 5 1 9 9 +- 52 -3 +- 132 0 7501 23 Apr 01 18:47 LAG2 14 0 8 -4 +- 28 3 +- 23 4 7501 24 Apr 01 03:15 LAG2 20 0 35 6 +- 21 20 +- 12 2 7501 24 Apr 01 04:53 LAG1 6 0 30 9 +- 148 11 +- 81 1 7501 24 Apr 01 16:49 LAG2 19 0 6 -6 +- 22 -1 +- 14 2 7501 25 Apr 01 15:15 LAG2 13 0 33 -30 +- 39 -2 +- 37 1 7501 25 Apr 01 19:05 LAG2 20 0 15 14 +- 22 -7 +- 16 1 7501 26 Apr 01 11:55 LAG1 12 1 16 9 +- 29 13 +- 27 1 7501 28 Apr 01 17:15 LAG2 20 0 29 9 +- 21 16 +- 12 7 Station 7806 (Metsahovi) (Position fixed, acc. 30 mm) 7806 24 Apr 01 21:03 LAG1 10 0 21 -22 +- 48 17 +- 40 6 7806 25 Apr 01 00:34 LAG1 10 0 35 -13 +- 47 26 +- 40 24 Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm) 7810 22 Apr 01 23:35 LAG1 6 0 48 7 +- 402 -22 +- 216 6 7810 25 Apr 01 19:51 LAG1 13 0 9 6 +- 90 -6 +- 54 6 7810 26 Apr 01 12:25 LAG2 6 0 49 -34 +- 87 24 +- 88 4 7810 26 Apr 01 18:17 LAG1 19 0 15 -10 +- 49 -4 +- 27 1 7810 26 Apr 01 21:41 LAG1 19 0 6 -5 +- 46 0 +- 29 1 7810 27 Apr 01 01:09 LAG1 16 0 15 -14 +- 50 2 +- 29 4 Station 7811 (Borowiec) (Position fixed, acc. 60 mm) 7811 19 Apr 01 20:43 LAG1 7 0 47 -88 +- 182 -48 +- 133 25 7811 26 Apr 01 21:45 LAG1 14 0 20 -13 +- 54 -8 +- 40 6 7811 28 Apr 01 22:31 LAG1 13 0 15 7 +- 55 -9 +- 43 4 Station 7820 (Kunming) (Position solved, acc. 80 mm) 7820 19 Apr 01 20:23 LAG1 7 0 8 0 +- 352 3 +- 186 5 7820 20 Apr 01 12:13 LAG1 7 0 26 -11 +- 160 17 +- 171 4 7820 20 Apr 01 12:27 LAG2 9 0 32 -33 +- 105 -3 +- 130 5 7820 21 Apr 01 20:57 LAG1 7 0 45 32 +- 97 16 +- 64 16 7820 22 Apr 01 12:49 LAG2 8 0 10 2 +- 123 -8 +- 175 9 7820 24 Apr 01 20:19 LAG1 6 0 25 63 +- 311 31 +- 211 5 Station 7824 (San Fernando) (Position fixed, acc. 40 mm) 7824 19 Apr 01 01:49 LAG1 3 0 51 107 +- 367 -66 +- 391 15 7824 22 Apr 01 20:27 LAG1 4 1 130 88 +- 354 -42 +- 374 22 7824 23 Apr 01 03:01 LAG1 5 0 249 -37 +- 525 -123 +- 227 24 7824 25 Apr 01 20:03 LAG1 7 0 142 135 +- 122 5 +- 101 12 7824 27 Apr 01 20:41 LAG1 8 0 115 118 +- 55 -44 +- 67 22 7824 28 Apr 01 00:03 LAG1 8 0 85 98 +- 64 -36 +- 78 7 Station 7832 (Riyad) (Position solved, acc. 20 mm) 7832 19 Apr 01 13:57 LAG1 10 0 33 -25 +- 39 33 +- 34 5 7832 19 Apr 01 14:17 LAG2 10 0 28 -64 +- 89 38 +- 54 14 7832 25 Apr 01 06:23 LAG2 11 0 9000 -33 +- 49 -8022 +- 44 18 Station 7835 (Grasse) (Position fixed, acc. 30 mm) 7835 19 Apr 01 09:35 LAG2 13 0 17 -22 +- 47 9 +- 34 7 7835 19 Apr 01 21:05 LAG1 4 0 12 -32 +- 254 18 +- 218 1 7835 20 Apr 01 00:01 LAG1 6 0 13 17 +- 486 12 +- 196 1 7835 20 Apr 01 07:28 LAG2 17 0 28 24 +- 30 -7 +- 20 2 7835 20 Apr 01 22:47 LAG1 2 0 13 -1 +-1141 -7 +- 527 0 7835 21 Apr 01 21:47 LAG1 6 0 29 -27 +- 110 -1 +- 111 1 7835 22 Apr 01 01:11 LAG1 10 0 6 7 +- 84 -3 +- 49 5 7835 25 Apr 01 19:47 LAG1 6 0 19 23 +- 73 10 +- 101 1 7835 26 Apr 01 08:29 LAG2 6 0 6 -2 +- 101 -1 +- 49 4 7835 26 Apr 01 12:17 LAG2 19 0 16 -12 +- 30 7 +- 16 7 7835 26 Apr 01 14:57 LAG1 8 0 17 -15 +- 51 12 +- 34 1 7835 26 Apr 01 18:23 LAG1 13 0 9 4 +- 35 6 +- 27 2 7835 26 Apr 01 21:57 LAG1 8 0 12 -16 +- 66 18 +- 65 2 7835 27 Apr 01 01:09 LAG1 3 0 25 -10 +- 859 7 +- 392 0 7835 27 Apr 01 10:25 LAG2 12 0 9 -7 +- 36 -3 +- 37 4 7835 27 Apr 01 20:19 LAG1 11 0 19 7 +- 40 -9 +- 18 3 7835 28 Apr 01 22:39 LAG1 8 0 16 11 +- 57 3 +- 34 3 Station 7836 (Potsdam) (Position fixed, acc. 30 mm) 7836 19 Apr 01 20:51 LAG1 8 0 17 -23 +- 60 9 +- 45 2 7836 23 Apr 01 22:14 LAG1 13 0 24 -22 +- 35 0 +- 24 7 7836 24 Apr 01 21:05 LAG1 10 0 18 -18 +- 44 14 +- 41 3 7836 25 Apr 01 00:21 LAG1 16 0 9 7 +- 32 1 +- 20 6 7836 27 Apr 01 01:12 LAG1 6 0 30 -36 +- 178 -4 +- 109 8 7836 27 Apr 01 23:53 LAG1 13 0 31 24 +- 37 -8 +- 23 20 7836 28 Apr 01 22:41 LAG1 8 0 18 13 +- 59 6 +- 58 2 Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm) 7840 19 Apr 01 01:33 LAG1 17 0 10 -3 +- 26 -5 +- 14 2 7840 19 Apr 01 05:15 LAG1 13 0 12 10 +- 30 -7 +- 33 2 7840 19 Apr 01 13:39 LAG2 12 0 19 -6 +- 36 16 +- 27 1 7840 19 Apr 01 21:01 LAG1 3 0 6 8 +- 93 -4 +- 114 0 7840 20 Apr 01 00:19 LAG1 9 0 19 16 +- 36 5 +- 27 2 7840 20 Apr 01 19:37 LAG1 10 0 31 0 +- 47 -17 +- 27 1 7840 20 Apr 01 22:52 LAG1 14 0 32 23 +- 28 -12 +- 17 5 7840 21 Apr 01 02:29 LAG1 15 0 10 5 +- 33 -7 +- 20 4 7840 23 Apr 01 14:02 LAG2 15 0 21 -7 +- 29 17 +- 22 3 7840 23 Apr 01 15:19 LAG1 15 0 27 8 +- 28 -19 +- 20 3 7840 23 Apr 01 18:01 LAG2 14 0 23 -19 +- 29 18 +- 29 2 7840 23 Apr 01 18:59 LAG1 14 0 18 -15 +- 32 -2 +- 19 2 7840 23 Apr 01 22:19 LAG1 12 0 6 -6 +- 31 0 +- 21 2 7840 24 Apr 01 16:07 LAG2 18 0 16 -6 +- 26 11 +- 18 3 7840 24 Apr 01 17:29 LAG1 9 0 9 -14 +- 90 -3 +- 50 1 7840 24 Apr 01 20:59 LAG1 17 0 17 -9 +- 26 8 +- 17 2 7840 25 Apr 01 00:23 LAG1 20 0 22 20 +- 24 4 +- 13 4 7840 26 Apr 01 08:09 LAG2 10 0 21 -10 +- 35 8 +- 19 1 7840 26 Apr 01 12:41 LAG2 7 0 20 -12 +- 226 17 +- 117 2 7840 28 Apr 01 08:21 LAG2 20 0 26 7 +- 24 16 +- 15 2 7840 28 Apr 01 12:24 LAG2 22 0 11 -4 +- 23 -6 +- 14 3 7840 28 Apr 01 15:31 LAG1 15 0 32 28 +- 27 9 +- 16 6 7840 28 Apr 01 16:33 LAG2 11 0 16 -13 +- 33 -10 +- 27 2 7840 28 Apr 01 19:04 LAG1 17 0 7 0 +- 26 4 +- 16 3 7840 28 Apr 01 22:31 LAG1 17 0 19 18 +- 26 2 +- 16 4 Station 7845 (Grasse) (Position fixed, acc. 20 mm) 7845 19 Apr 01 17:49 LAG2 16 0 40 -57 +- 49 13 +- 28 8 7845 19 Apr 01 20:40 LAG1 21 0 49 -50 +- 24 7 +- 14 6 7845 20 Apr 01 00:07 LAG1 10 0 34 -31 +- 34 -5 +- 20 7 7845 20 Apr 01 15:56 LAG2 5 0 38 -58 +- 90 12 +- 42 5 7845 23 Apr 01 14:09 LAG2 14 0 37 -44 +- 42 24 +- 19 10 7845 23 Apr 01 15:33 LAG1 14 0 35 -24 +- 44 -6 +- 23 4 7845 23 Apr 01 18:22 LAG2 9 0 43 -23 +- 112 40 +- 70 5 7845 23 Apr 01 19:06 LAG1 15 0 48 -67 +- 52 13 +- 26 7 7845 25 Apr 01 19:33 LAG1 24 0 16 -12 +- 22 4 +- 11 9 Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm) 7849 23 Apr 01 11:45 LAG2 12 0 8 10 +- 38 -8 +- 34 2 7849 24 Apr 01 14:05 LAG2 9 0 7 9 +- 67 -4 +- 65 4 7849 26 Apr 01 10:15 LAG2 10 0 6 -24 +- 121 13 +- 64 2 7849 26 Apr 01 14:13 LAG2 12 0 17 18 +- 33 -3 +- 41 3 7849 26 Apr 01 16:48 LAG1 9 0 27 -36 +- 52 -11 +- 49 2 7849 26 Apr 01 18:37 LAG2 5 0 17 -11 +- 116 18 +- 77 4 7849 26 Apr 01 20:19 LAG1 5 0 7 6 +- 43 -1 +- 19 1 7849 27 Apr 01 03:13 LAG1 9 0 36 34 +- 52 1 +- 39 3 7849 27 Apr 01 08:01 LAG2 10 0 37 -10 +- 31 27 +- 26 5 7849 27 Apr 01 15:35 LAG1 3 0 31 34 +- 105 17 +- 517 2 7849 27 Apr 01 16:23 LAG2 16 0 35 17 +- 25 23 +- 22 2 7849 27 Apr 01 18:55 LAG1 7 0 18 -38 +- 140 -25 +- 68 1 7849 27 Apr 01 20:27 LAG2 10 0 14 -1 +- 33 18 +- 51 5 -------------------------------------------------------------------------------- Distribution of daytime, nighttime and twilight passes since Nov 1, 2000: -------------------------------------------------------------------------- Station System Period Number of Passes LAGEOS-1 LAGEOS-2 Day/Night/Twil. Day/Night/Twil. Total -------------------------------------------------------------------------- 1824 KIEVLA 010123 - 010415 0/ 17/ 0 0/ 5/ 0 22 1864 MD2LAS 001112 - 001223 0/ 5/ 0 0/ 8/ 0 13 1868 KOMLAS 010309 - 010416 0/ 4/ 0 0/ 0/ 0 4 1873 SIMLAS 001101 - 010216 0/ 4/ 0 0/ 11/ 0 15 1884 RIGLAS 001102 - 010406 0/ 32/ 0 0/ 15/ 0 47 1893 CRMLAS 001107 - 001202 0/ 5/ 0 0/ 3/ 0 8 7080 MLRS25 001102 - 010429 49/ 99/ 9 54/ 83/ 12 306 7090 ML0514 001101 - 010430 120/121/ 22 105/148/ 11 527 7105 ML0725 001101 - 010430 41/216/ 16 52/149/ 13 487 7110 ML0414 001101 - 010430 27/187/ 13 19/131/ 9 386 7124 ML0819 001107 - 010208 0/ 25/ 0 0/ 16/ 2 43 7210 HOLLAS 001115 - 010420 3/ 44/ 1 0/ 40/ 1 89 7231 WUHA01 001103 - 001205 0/ 8/ 0 0/ 9/ 0 17 7237 CHALAS 001102 - 010428 0/132/ 0 0/ 86/ 0 218 7249 BEJLAS 001101 - 010425 0/ 52/ 0 0/ 32/ 0 84 7335 KASLAS 001108 - 010118 4/ 16/ 1 5/ 15/ 1 42 7339 TATLAS 001107 - 010424 21/ 28/ 0 9/ 26/ 3 87 7403 TLRS3 001101 - 010430 0/ 22/ 1 1/ 29/ 1 54 7501 ML0616 001101 - 010429 38/ 35/ 9 25/ 39/ 2 148 7806 METLAS 010209 - 010425 0/ 42/ 0 0/ 8/ 0 50 7810 ZIMLAT 001102 - 010430 17/ 40/ 2 13/ 18/ 4 94 7811 POLLAS 001103 - 010430 0/ 94/ 0 0/ 45/ 0 139 7820 YSLR01 001101 - 010430 0/147/ 2 0/171/ 1 321 7824 SPNLAS 001101 - 010430 2/ 94/ 2 2/ 84/ 2 186 7831 HELLAS 001101 - 001104 0/ 3/ 0 0/ 1/ 0 4 7832 SALRO 001211 - 010425 16/ 17/ 5 48/ 12/ 4 102 7835 GRASSE 001101 - 010429 15/125/ 6 27/ 80/ 3 256 7836 GFZLAS 001101 - 010428 5/ 96/ 5 3/ 58/ 2 169 7837 CHILAS 001102 - 010418 0/ 77/ 0 0/ 59/ 1 137 7838 SHOLAS 001107 - 010318 2/ 92/ 0 7/ 91/ 2 194 7839 AUSLAS 001102 - 010418 19/ 92/ 4 25/ 65/ 4 209 7840 RGOLAS 001102 - 010428 42/150/ 11 44/104/ 8 359 7845 GRASLL 001103 - 010425 18/ 45/ 1 36/ 26/ 2 128 7849 MSLO01 001101 - 010430 164/ 57/ 23 142/ 77/ 13 476 7939 SAO102 001101 - 001121 0/ 6/ 0 0/ 2/ 0 8 8834 WLRS01 001101 - 010116 4/ 17/ 0 3/ 25/ 2 51 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 010421.0 143.6 +/- 0.2 478.7 +/- 0.1 -31990.40 +/- 0.01 010424.0 149.7 +/- 0.1 475.4 +/- 0.1 -31993.37 +/- 0.01 010427.0 157.0 +/- 0.1 471.7 +/- 0.1 -31995.63 +/- 0.01 -------------------------------------------------------------- D. COMMENTS 1. This is a QLDAC analysis report in a new style. Although our old report served quite well for observation campaigns, we have received many requests to adjust our report to the current situation (i.e. a permanent global SLR network with few mobile systems), and to spend more attention to the quality of the data taken by the global network. The most important element of the report is the table with statistics for each individual data pass. Although the numbers will speak for themselves, we must give a warning here that some of you may be disappointed to see that their station appears to be suffering from a data problem. However, we are using a model for station positions that is already 7 years old, and which may be responsible for errors in the station position in the order of 1-5 cm. We intend to introduce a new coordinates solution in the course of this millennium. Readers of this report are invited to provide us suggestions for further improvements. ”/DGFI3/home/slreport/mbox” complete From: Ron Noomen ******************************************************************************** |