| Date: | 2000-04-28 08:58:00 | |
| Sender: | Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 60: QL-Report Week 17, 2000 | |
| Author: | Ron Noomen, DEOS, Delft, The Netherlands | |
| Content: | ******************************************************************************** SLR Electronic Report 2000-04-28 08:58:00 UTC Message No. 60 ******************************************************************************** Author: Ron Noomen, DEOS, Delft, The Netherlands Subject: QL-Report Week 17, 2000 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS WEEK 17, 2000 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 24, 2000. 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@lr.tudelft.nl A. PASS SUMMARY The table below gives an overview of the ranging data both on LAGEOS-1 and LAGEOS-2, received by the Quick-Look Data Analysis Center (QLDAC) on Tue, Apr 25, 2000. All data were obtained through 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) 000417 - 000419 - 2 1884 Riga, Latvia 000416 - 000424 1 8 7080 McDonald Obs., Fort Davis, TX 000424 - 000424 1 2 7090 Yarragadee, Australia 000418 - 000424 13 10 7105 Greenbelt, Maryland 000420 - 000424 1 3 7124 Papeete, Tahiti 000417 - 000417 - 1 7237 Changchun, China 000417 - 000421 1 4 7249 Beijing, China 000415 - 000422 1 5 7335 Kashima, Japan 000417 - 000424 3 1 7806 Metsahovi, Finland 000422 - 000422 1 1 7811 Borowiec, Poland 000418 - 000420 - 2 7820 Kunming, China 000417 - 000421 2 5 7824 San Fernando, Spain 000416 - 000417 2 - 7835 Grasse, France 000418 - 000422 5 4 7836 Potsdam, Germany 000414 - 000420 1 3 7837 Shanghai Observatory, China 000417 - 000417 1 - 7838 Simosato Observatory, Japan 000417 - 000423 3 2 7839 Graz, Austria 000331 - 000417 6 5 7840 Herstmonceux, United Kingdom 000415 - 000423 9 4 7845 Grasse, France (LLR) 000418 - 000421 5 3 7849 Mount Stromlo, Australia 000414 - 000422 20 16 8834 Wettzell, Germany 000414 - 000420 7 6 ------ ------ --- --- TOTAL 000331 - 000424 83 87 ------------------------------------------------------------------------------ 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 13, 2000, to Sat, Apr 22, 2000. 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 22 23 Number of Passes 101/101 114/113 Number of Normal Points 1111/1095 1255/1233 RMS of Fit (mm) 35 34 ----------------------------------------------------------------------- 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. Bias 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 13 Apr 00 20:09 Lag2 6 0 77 -78 +- 252 18 +- 266 12 1864 17 Apr 00 20:40 Lag2 9 0 30 -9 +- 283 23 +- 200 11 1864 19 Apr 00 20:44 Lag2 3 0 31 -47 +-3415 -49 +-2176 3 Station 1884 (Riga) (Position fixed, acc. 100 mm) 1884 16 Apr 00 00:11 Lag2 18 0 61 -45 +- 75 38 +- 56 11 1884 17 Apr 00 19:11 Lag1 11 0 56 -48 +- 95 -28 +- 122 9 1884 18 Apr 00 00:23 Lag2 19 0 55 -47 +- 72 27 +- 53 8 1884 18 Apr 00 22:31 Lag2 17 0 46 -45 +- 75 9 +- 64 5 1884 20 Apr 00 00:33 Lag2 21 0 48 4 +- 68 32 +- 46 8 1884 21 Apr 00 20:59 Lag2 13 0 76 76 +- 89 -11 +- 103 17 1884 22 Apr 00 00:47 Lag2 15 0 28 -3 +- 91 21 +- 74 5 Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm) 7080 13 Apr 00 17:29 Lag2 11 0 46 -49 +- 34 -20 +- 44 5 7080 13 Apr 00 18:18 Lag1 10 0 59 67 +- 42 -17 +- 41 6 7080 14 Apr 00 00:49 Lag1 14 0 29 -5 +- 28 22 +- 22 3 7080 14 Apr 00 07:13 Lag2 8 0 20 18 +- 57 2 +- 48 2 7080 14 Apr 00 11:25 Lag2 13 0 31 28 +- 47 2 +- 35 4 7080 14 Apr 00 23:33 Lag1 7 0 8 7 +- 42 7 +- 49 4 7080 15 Apr 00 05:25 Lag2 6 0 13 20 +- 73 -10 +- 45 5 7080 15 Apr 00 09:22 Lag2 14 0 16 0 +- 37 -14 +- 33 1 7080 15 Apr 00 13:42 Lag2 10 0 15 13 +- 38 -23 +- 56 2 7080 15 Apr 00 17:45 Lag2 4 0 5 -16 +- 201 -16 +- 258 2 7080 16 Apr 00 01:32 Lag1 18 0 13 12 +- 25 -2 +- 15 3 7080 16 Apr 00 11:35 Lag2 12 0 17 17 +- 37 -13 +- 28 4 7080 16 Apr 00 14:25 Lag1 2 0 18 -4 +- 889 -15 +-1024 0 7080 16 Apr 00 15:55 Lag2 4 0 16 5 +- 110 -20 +- 222 3 7080 16 Apr 00 17:46 Lag1 6 0 11 -3 +- 45 -17 +- 79 2 7080 17 Apr 00 04:10 Lag1 2 0 10 20 +-1122 -6 +- 719 0 7080 17 Apr 00 05:31 Lag2 6 0 6 -5 +- 66 -14 +- 105 1 Station 7090 (Yarragadee) (Position fixed, acc. 10 mm) 7090 13 Apr 00 00:05 Lag1 20 0 52 36 +- 21 -16 +- 12 11 7090 13 Apr 00 03:25 Lag2 7 0 25 28 +- 49 -38 +- 56 2 7090 13 Apr 00 07:15 Lag2 14 0 16 0 +- 25 -11 +- 18 1 7090 14 Apr 00 05:21 Lag2 21 0 15 5 +- 23 -11 +- 15 2 7090 14 Apr 00 09:25 Lag2 25 0 28 12 +- 19 20 +- 15 1 7090 14 Apr 00 11:17 Lag1 22 0 42 -33 +- 20 16 +- 12 8 7090 14 Apr 00 13:35 Lag2 23 0 15 0 +- 20 7 +- 10 3 7090 14 Apr 00 14:57 Lag1 16 0 8 6 +- 26 2 +- 18 1 7090 15 Apr 00 07:31 Lag2 20 0 26 -5 +- 21 -21 +- 19 2 7090 15 Apr 00 10:09 Lag1 9 0 26 -29 +- 36 26 +- 63 1 7090 15 Apr 00 11:41 Lag2 22 0 12 12 +- 20 -1 +- 11 3 7090 15 Apr 00 13:31 Lag1 19 0 43 6 +- 22 24 +- 12 3 7090 15 Apr 00 15:51 Lag2 4 0 1 -14 +- 394 -9 +- 274 0 7090 16 Apr 00 19:07 Lag1 5 0 27 -31 +- 54 19 +- 144 0 7090 16 Apr 00 22:11 Lag1 19 0 42 -40 +- 22 7 +- 11 8 7090 17 Apr 00 01:53 Lag1 14 0 10 6 +- 27 6 +- 29 3 7090 17 Apr 00 04:09 Lag2 4 0 73 33 +- 804 -50 +- 382 1 7090 18 Apr 00 09:59 Lag2 22 0 23 -23 +- 20 3 +- 14 3 7090 18 Apr 00 12:51 Lag1 15 0 13 13 +- 36 11 +- 20 1 7090 18 Apr 00 14:04 Lag2 12 0 29 28 +- 27 1 +- 16 4 7090 18 Apr 00 16:35 Lag1 8 0 20 18 +- 46 3 +- 60 1 7090 19 Apr 00 15:13 Lag1 6 0 7 5 +- 50 15 +- 82 1 7090 20 Apr 00 10:17 Lag1 10 0 23 -19 +- 34 9 +- 48 1 7090 20 Apr 00 10:35 Lag2 14 0 13 -21 +- 46 8 +- 33 2 7090 20 Apr 00 13:45 Lag1 11 0 38 -28 +- 41 9 +- 30 2 7090 20 Apr 00 14:23 Lag2 15 0 27 26 +- 24 3 +- 16 4 7090 20 Apr 00 17:15 Lag1 6 0 26 -23 +- 41 -11 +- 76 3 7090 20 Apr 00 20:25 Lag1 16 0 17 -5 +- 24 -11 +- 19 2 7090 20 Apr 00 23:49 Lag1 17 0 36 -1 +- 23 -22 +- 14 4 7090 21 Apr 00 03:53 Lag2 17 0 27 0 +- 37 -17 +- 23 3 7090 22 Apr 00 10:27 Lag2 19 0 9 5 +- 25 8 +- 19 0 7090 22 Apr 00 11:03 Lag1 18 0 38 -26 +- 23 22 +- 16 10 7090 22 Apr 00 14:27 Lag1 10 0 40 -35 +- 30 7 +- 14 8 7090 22 Apr 00 14:43 Lag2 8 0 25 29 +- 43 -4 +- 24 4 Station 7105 (Greenbelt) (Position fixed, acc. 10 mm) 7105 14 Apr 00 07:35 Lag2 6 0 31 3 +- 74 24 +- 64 2 7105 20 Apr 00 00:07 Lag1 3 0 29 157 +-1533 -50 +- 601 5 7105 20 Apr 00 04:24 Lag2 5 0 25 45 +- 361 -10 +- 190 1 7105 20 Apr 00 08:01 Lag2 14 0 14 14 +- 27 0 +- 17 2 Station 7110 (Monument Peak) (Position fixed, acc. 10 mm) 7110 13 Apr 00 02:35 Lag1 6 0 27 -101 +- 232 58 +- 111 2 7110 13 Apr 00 05:07 Lag2 7 0 24 25 +- 37 -20 +- 82 0 7110 13 Apr 00 05:51 Lag1 12 0 45 -46 +- 27 3 +- 42 3 7110 13 Apr 00 08:47 Lag2 14 0 41 10 +- 28 -19 +- 15 2 7110 13 Apr 00 17:29 Lag2 6 0 47 -52 +- 46 -25 +- 90 0 7110 13 Apr 00 18:15 Lag1 8 0 41 40 +- 53 0 +- 47 1 7110 14 Apr 00 01:21 Lag1 4 0 50 -41 +- 623 39 +- 266 1 7110 14 Apr 00 04:21 Lag1 4 0 46 -46 +- 371 0 +- 206 5 Station 7124 (Papeete) (Position fixed, acc. 10 mm) 7124 13 Apr 00 08:07 Lag2 4 0 15 -16 +-1034 -12 +- 427 5 7124 17 Apr 00 08:35 Lag2 23 1 23 4 +- 20 -9 +- 13 16 Station 7237 (Changchun) (Position fixed, acc. 50 mm) 7237 14 Apr 00 12:01 Lag1 10 0 31 -30 +- 55 0 +- 37 4 7237 14 Apr 00 14:41 Lag2 11 0 31 29 +- 66 -40 +- 72 8 7237 14 Apr 00 18:47 Lag2 8 0 20 -1 +- 121 -17 +- 115 5 7237 15 Apr 00 16:39 Lag2 9 0 20 -10 +- 79 -27 +- 83 4 7237 16 Apr 00 18:47 Lag2 10 0 34 14 +- 76 -15 +- 79 20 7237 17 Apr 00 11:37 Lag1 3 0 16 -8 +- 189 -50 +- 420 3 7237 17 Apr 00 16:57 Lag2 13 0 55 -6 +- 58 -37 +- 42 7 7237 18 Apr 00 15:08 Lag2 8 0 29 33 +- 78 -28 +- 69 5 7237 18 Apr 00 19:01 Lag2 2 0 20 -262 +-4426 -172 +-2713 0 7237 21 Apr 00 17:35 Lag2 8 0 85 -4 +- 158 -64 +- 125 3 Station 7249 (Beijing) (Position fixed, acc. 50 mm) 7249 15 Apr 00 16:37 Lag2 7 0 38 -38 +- 67 -16 +- 73 8 7249 15 Apr 00 20:49 Lag2 5 0 16 -6 +- 92 33 +- 264 3 7249 16 Apr 00 18:53 Lag2 4 0 29 -27 +- 89 -21 +- 329 0 7249 20 Apr 00 19:11 Lag2 13 0 19 -21 +- 57 9 +- 51 8 7249 21 Apr 00 17:11 Lag2 15 0 45 7 +- 45 -32 +- 35 14 7249 22 Apr 00 11:45 Lag1 5 0 65 -24 +- 217 39 +- 206 8 Station 7335 (Kashima) (Position fixed, acc. 20 mm) 7335 17 Apr 00 01:03 Lag1 16 0 50 -51 +- 28 3 +- 17 7 7335 17 Apr 00 04:39 Lag1 5 0 32 -33 +- 57 3 +- 137 4 7335 17 Apr 00 23:40 Lag1 15 0 53 -55 +- 31 -4 +- 19 10 7335 18 Apr 00 01:11 Lag2 15 0 14 -2 +- 29 12 +- 30 6 7335 18 Apr 00 06:33 Lag1 11 0 28 -21 +- 32 -20 +- 35 4 Station 7337 (Miura) (Position fixed, acc. 20 mm) 7337 17 Apr 00 01:19 Lag1 5 0 47 -52 +- 58 16 +- 69 8 Station 7339 (Tateyama) (Position fixed, acc. 20 mm) 7339 13 Apr 00 09:45 Lag1 11 0 49 -47 +- 33 -3 +- 20 7 7339 13 Apr 00 12:45 Lag2 6 0 58 136 +- 145 -87 +- 143 5 7339 17 Apr 00 01:13 Lag1 13 0 48 -50 +- 33 6 +- 25 6 Station 7806 (Metsahovi) (Position fixed, acc. 30 mm) 7806 22 Apr 00 00:54 Lag2 5 0 32 -22 +- 171 1 +- 161 22 7806 22 Apr 00 19:37 Lag1 8 0 32 -47 +- 81 58 +- 84 9 Station 7811 (Borowiec) (Position fixed, acc. 60 mm) 7811 13 Apr 00 01:45 Lag2 18 0 21 7 +- 47 15 +- 36 5 7811 18 Apr 00 22:29 Lag2 13 0 37 29 +- 56 0 +- 55 21 7811 20 Apr 00 22:49 Lag2 12 0 53 49 +- 70 3 +- 69 12 Station 7820 (Kunming) (Position solved, acc. 80 mm) 7820 13 Apr 00 16:19 Lag2 5 0 34 -30 +- 142 -10 +- 307 7 7820 17 Apr 00 16:37 Lag2 15 0 498 478 +- 69 32 +- 56 74 7820 18 Apr 00 18:57 Lag2 2 0 55 51 +- 314 28 +-2042 0 7820 19 Apr 00 12:07 Lag1 9 0 64 -77 +- 193 -9 +- 116 9 7820 19 Apr 00 17:13 Lag2 6 0 81 175 +- 894 -48 +- 440 22 7820 20 Apr 00 14:49 Lag2 7 0 79 26 +- 428 -32 +- 268 16 7820 20 Apr 00 19:05 Lag2 13 0 37 -39 +- 82 8 +- 93 11 7820 21 Apr 00 13:07 Lag1 9 0 48 16 +- 124 17 +- 80 27 Station 7824 (San Fernando) (Position fixed, acc. 40 mm) 7824 16 Apr 00 20:31 Lag1 11 0 30 43 +- 65 -24 +- 51 8 7824 17 Apr 00 19:21 Lag1 4 0 20 -11 +- 418 -4 +- 210 1 Station 7835 (Grasse) (Position fixed, acc. 30 mm) 7835 13 Apr 00 23:41 Lag2 12 0 11 0 +- 62 8 +- 45 1 7835 18 Apr 00 21:11 Lag1 8 0 34 23 +- 115 -11 +- 113 0 7835 18 Apr 00 22:19 Lag2 18 0 15 -14 +- 29 -1 +- 24 5 7835 19 Apr 00 20:07 Lag1 8 0 19 -23 +- 122 19 +- 61 1 7835 20 Apr 00 08:07 Lag1 7 0 35 14 +- 106 -16 +- 80 3 7835 20 Apr 00 08:38 Lag2 21 0 23 -1 +- 28 -16 +- 21 5 7835 21 Apr 00 20:53 Lag1 4 0 9 -9 +- 137 36 +- 301 1 7835 21 Apr 00 21:01 Lag2 3 0 15 23 +- 285 -14 +- 506 0 7835 22 Apr 00 00:41 Lag2 19 0 14 3 +- 30 9 +- 21 1 7835 22 Apr 00 19:01 Lag1 10 0 90 -57 +- 194 14 +- 86 2 Station 7836 (Potsdam) (Position fixed, acc. 30 mm) 7836 13 Apr 00 02:05 Lag2 5 0 13 -28 +- 206 29 +- 165 3 7836 13 Apr 00 17:31 Lag1 6 0 24 -21 +- 51 -5 +- 49 9 7836 14 Apr 00 19:48 Lag1 8 0 37 -35 +- 58 -1 +- 63 11 7836 14 Apr 00 22:09 Lag2 5 0 26 25 +- 92 -2 +- 186 2 7836 16 Apr 00 22:17 Lag2 15 0 8 0 +- 33 -6 +- 32 4 7836 20 Apr 00 00:54 Lag2 7 0 39 30 +- 236 4 +- 135 8 Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm) 7837 15 Apr 00 16:23 Lag2 11 0 36 -66 +- 116 -24 +- 74 5 7837 16 Apr 00 12:41 Lag1 11 0 8 3 +- 62 7 +- 55 4 7837 16 Apr 00 14:35 Lag2 13 0 11 -10 +- 53 0 +- 51 5 7837 17 Apr 00 11:19 Lag1 14 0 46 -13 +- 46 24 +- 25 7 Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm) 7838 13 Apr 00 09:49 Lag1 11 0 56 -58 +- 42 20 +- 28 20 7838 16 Apr 00 12:56 Lag1 7 0 15 16 +- 88 -2 +- 128 5 7838 16 Apr 00 14:45 Lag2 17 0 15 -13 +- 33 -3 +- 24 4 7838 17 Apr 00 11:17 Lag1 17 0 33 16 +- 30 21 +- 22 7 7838 20 Apr 00 10:41 Lag1 9 0 13 -7 +- 102 3 +- 63 4 7838 21 Apr 00 17:13 Lag2 17 0 62 -15 +- 33 -52 +- 26 8 Station 7839 (Graz) (Position fixed, acc. 10 mm) 7839 16 Apr 00 22:01 Lag2 16 0 36 33 +- 24 -6 +- 15 4 7839 17 Apr 00 18:55 Lag1 13 0 49 21 +- 26 -25 +- 14 2 7839 17 Apr 00 20:33 Lag2 9 0 29 34 +- 41 -13 +- 64 1 Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm) 7840 15 Apr 00 23:59 Lag2 20 0 25 -5 +- 24 18 +- 17 5 7840 16 Apr 00 10:01 Lag1 15 0 18 -8 +- 28 -8 +- 17 4 7840 17 Apr 00 06:27 Lag2 11 0 6 9 +- 72 -8 +- 46 2 7840 17 Apr 00 12:12 Lag1 6 0 16 -15 +- 45 0 +- 47 6 7840 17 Apr 00 15:36 Lag1 12 0 16 -1 +- 31 -12 +- 23 4 7840 17 Apr 00 19:07 Lag1 14 0 27 -2 +- 29 -21 +- 23 3 7840 18 Apr 00 00:09 Lag2 16 0 24 0 +- 27 15 +- 18 4 7840 19 Apr 00 09:29 Lag1 14 0 17 -9 +- 32 -6 +- 19 3 7840 19 Apr 00 10:31 Lag2 7 0 19 -23 +- 52 -40 +- 105 2 7840 19 Apr 00 12:54 Lag1 16 0 22 22 +- 27 0 +- 18 2 7840 19 Apr 00 16:19 Lag1 9 0 26 29 +- 67 2 +- 46 1 7840 22 Apr 00 12:25 Lag1 14 0 37 38 +- 30 -8 +- 22 8 Station 7845 (Grasse) (Position fixed, acc. 20 mm) 7845 18 Apr 00 08:25 Lag2 4 0 40 -17 +- 504 14 +- 307 3 7845 18 Apr 00 17:23 Lag1 19 0 42 -22 +- 29 -23 +- 14 7 7845 19 Apr 00 09:19 Lag1 16 0 59 -53 +- 29 4 +- 15 9 7845 19 Apr 00 12:51 Lag1 15 0 25 -24 +- 28 2 +- 22 3 7845 20 Apr 00 07:53 Lag1 18 0 7 -5 +- 35 -3 +- 18 5 7845 20 Apr 00 08:50 Lag2 11 0 36 -34 +- 43 -2 +- 45 5 7845 21 Apr 00 02:23 Lag2 23 0 45 -16 +- 22 21 +- 11 5 7845 21 Apr 00 13:35 Lag1 18 0 15 -8 +- 25 9 +- 17 3 Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm) 7849 13 Apr 00 07:41 Lag2 11 0 28 30 +- 32 9 +- 40 2 7849 14 Apr 00 21:51 Lag1 6 0 8 -53 +- 461 17 +- 178 1 7849 15 Apr 00 08:13 Lag2 10 0 16 16 +- 81 0 +- 53 2 7849 16 Apr 00 22:13 Lag1 8 0 24 -20 +- 34 6 +- 22 4 7849 17 Apr 00 00:23 Lag2 3 0 42 -27 +- 837 -10 +- 532 2 7849 17 Apr 00 03:48 Lag2 17 0 23 -10 +- 23 -16 +- 19 1 7849 17 Apr 00 08:01 Lag2 3 0 34 -122 +-1571 -74 +- 745 1 7849 17 Apr 00 10:31 Lag1 21 0 34 15 +- 21 17 +- 11 4 7849 17 Apr 00 12:15 Lag2 15 0 7 5 +- 24 -4 +- 20 2 7849 17 Apr 00 14:06 Lag1 10 0 19 17 +- 32 18 +- 34 2 7849 18 Apr 00 01:46 Lag2 13 0 27 11 +- 77 -9 +- 42 4 7849 18 Apr 00 06:11 Lag2 4 0 20 -20 +- 49 -3 +- 47 3 7849 18 Apr 00 09:21 Lag1 13 0 15 15 +- 28 -10 +- 24 3 7849 18 Apr 00 10:17 Lag2 12 0 24 15 +- 27 10 +- 14 2 7849 18 Apr 00 12:53 Lag1 11 0 21 22 +- 31 -5 +- 29 2 7849 18 Apr 00 16:08 Lag1 6 0 44 40 +- 56 -5 +- 62 5 7849 18 Apr 00 19:29 Lag1 17 0 19 -9 +- 24 12 +- 15 3 7849 18 Apr 00 23:03 Lag1 7 0 17 -6 +- 36 11 +- 28 3 7849 19 Apr 00 00:29 Lag2 4 0 41 -15 +- 171 -19 +- 129 3 7849 19 Apr 00 03:59 Lag2 1 0 17 0 +- 0 0 +- 0 0 7849 19 Apr 00 11:23 Lag1 21 0 5 0 +- 21 2 +- 11 3 7849 19 Apr 00 14:56 Lag1 10 0 31 32 +- 32 -3 +- 39 3 7849 20 Apr 00 06:49 Lag2 4 0 6 -27 +- 362 23 +- 265 2 7849 20 Apr 00 09:57 Lag1 12 0 11 -14 +- 41 -7 +- 22 6 7849 20 Apr 00 10:39 Lag2 12 0 21 18 +- 30 4 +- 22 3 7849 20 Apr 00 13:31 Lag1 5 0 13 -19 +- 70 -8 +- 50 2 7849 21 Apr 00 08:33 Lag2 10 0 12 4 +- 37 10 +- 28 2 7849 21 Apr 00 08:40 Lag1 10 0 34 16 +- 31 -21 +- 19 4 7849 21 Apr 00 12:56 Lag2 8 0 38 83 +- 91 -45 +- 76 3 7849 21 Apr 00 22:23 Lag1 4 0 16 -15 +- 51 4 +- 30 8 7849 22 Apr 00 02:28 Lag2 11 0 5 -4 +- 36 2 +- 27 3 7849 22 Apr 00 07:25 Lag1 7 0 26 25 +- 36 -10 +- 103 4 7849 22 Apr 00 10:57 Lag2 6 0 20 20 +- 39 9 +- 78 2 7849 22 Apr 00 11:11 Lag1 9 0 47 -100 +- 107 28 +- 52 6 7849 22 Apr 00 14:24 Lag1 4 0 48 -44 +- 49 -14 +- 72 3 7849 22 Apr 00 17:35 Lag1 7 0 67 30 +- 39 -32 +- 26 6 7849 22 Apr 00 20:57 Lag1 8 0 50 -31 +- 33 -17 +- 16 14 Station 8834 (Wettzell) (Position fixed, acc. 10 mm) 8834 14 Apr 00 12:35 Lag1 16 0 20 19 +- 24 0 +- 17 4 8834 14 Apr 00 16:01 Lag1 19 0 4 -3 +- 22 0 +- 13 3 8834 14 Apr 00 22:09 Lag2 6 0 32 -31 +- 39 2 +- 96 3 8834 16 Apr 00 03:57 Lag2 19 0 40 -28 +- 25 11 +- 16 3 8834 16 Apr 00 10:23 Lag1 7 0 52 -116 +- 277 25 +- 109 5 8834 16 Apr 00 16:43 Lag1 20 0 60 -41 +- 21 -27 +- 12 12 8834 16 Apr 00 22:01 Lag2 17 0 43 -57 +- 33 -18 +- 23 8 8834 17 Apr 00 02:09 Lag2 4 0 61 -51 +- 526 5 +- 287 3 8834 20 Apr 00 00:43 Lag2 9 0 52 -63 +- 48 17 +- 49 4 8834 20 Apr 00 11:25 Lag1 15 0 48 -49 +- 29 -1 +- 19 6 8834 20 Apr 00 14:51 Lag1 22 0 13 -2 +- 20 -4 +- 11 8 8834 20 Apr 00 18:31 Lag1 14 0 30 -35 +- 29 10 +- 19 3 8834 20 Apr 00 22:49 Lag2 11 0 26 -36 +- 40 13 +- 29 2 -------------------------------------------------------------------------------- Distribution of daytime, nighttime and twilight passes since Mar 1, 1900 -------------------------------------------------------------------------- Station System Period Number of Passes LAGEOS-1 LAGEOS-2 Day/Night/Twil. Day/Night/Twil. Total -------------------------------------------------------------------------- 1864 MD2LAS 000304 - 000419 0/ 7/ 0 0/ 20/ 0 27 1868 KOMLAS 000320 - 000330 0/ 2/ 0 0/ 2/ 0 4 1884 RIGLAS 000302 - 000424 0/ 10/ 0 0/ 12/ 0 22 7080 MLRS25 000301 - 000424 12/ 19/ 5 13/ 20/ 1 70 7090 ML0514 000301 - 000424 13/ 63/ 5 32/ 47/ 3 163 7105 ML0725 000301 - 000424 30/ 30/ 4 22/ 29/ 2 117 7110 ML0414 000302 - 000414 20/ 29/ 2 20/ 44/ 6 121 7124 ML0819 000403 - 000417 0/ 4/ 0 0/ 9/ 0 13 7237 CHALAS 000311 - 000421 0/ 16/ 0 0/ 26/ 0 42 7249 BEJLAS 000306 - 000422 0/ 18/ 0 0/ 21/ 0 39 7328 KOGLAS 000301 - 000412 17/ 14/ 2 10/ 1/ 0 44 7335 KASLAS 000301 - 000424 36/ 0/ 1 20/ 0/ 0 57 7337 MIULAS 000301 - 000417 24/ 3/ 3 18/ 0/ 0 48 7339 TATLAS 000301 - 000417 41/ 6/ 4 25/ 1/ 0 77 7403 TLRS3 000405 - 000407 0/ 1/ 0 0/ 2/ 0 3 7806 METLAS 000312 - 000422 0/ 10/ 0 0/ 4/ 0 14 7810 ZIMLAT 000305 - 000315 0/ 6/ 0 0/ 1/ 0 7 7811 POLLAS 000310 - 000420 0/ 7/ 0 0/ 6/ 0 13 7820 YSLR01 000303 - 000421 0/ 20/ 0 0/ 28/ 0 48 7824 SPNLAS 000301 - 000417 0/ 29/ 3 0/ 11/ 1 44 7831 HELLAS 000327 - 000328 0/ 1/ 0 0/ 1/ 0 2 7835 GRASSE 000302 - 000422 6/ 20/ 0 7/ 11/ 0 44 7836 GFZLAS 000302 - 000420 1/ 10/ 2 2/ 13/ 1 29 7837 CHILAS 000316 - 000417 0/ 10/ 1 0/ 8/ 0 19 7838 SHOLAS 000307 - 000423 10/ 21/ 3 3/ 13/ 0 50 7839 AUSLAS 000302 - 000417 18/ 18/ 2 13/ 10/ 0 61 7840 RGOLAS 000301 - 000423 45/ 24/ 6 20/ 18/ 1 114 7845 GRASLL 000302 - 000421 18/ 6/ 0 15/ 1/ 0 40 7849 MSLO01 000301 - 000422 21/ 52/ 3 36/ 37/ 7 156 7939 SAO102 000301 - 000307 0/ 2/ 0 0/ 3/ 0 5 8834 WLRS01 000301 - 000420 35/ 15/ 3 15/ 22/ 3 93 -------------------------------------------------------------------------- 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) -------------------------------------------------------------- 417.0 82.9 +/- 0.1 345.2 +/- 0.1 -31734.97 +/- 0.01 420.0 84.4 +/- 0.1 344.2 +/- 0.2 -31739.05 +/- 0.01 -------------------------------------------------------------- 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 5 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. Users of this report are invited to give suggestions for further improvements. ”/DGFI3/home/slreport/mbox” complete From: Ron Noomen ******************************************************************************** |