| Date: | 2001-04-24 09:45:00 | |
| Sender: | Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 862: Delft QL Report, April 24, 2001 | |
| Author: | Ron Noomen, DEOS, Delft, The Netherlands | |
| Content: | ******************************************************************************** SLR Electronic Report 2001-04-24 09:45:00 UTC Message No. 862 ******************************************************************************** Author: Ron Noomen, DEOS, Delft, The Netherlands Subject: Delft QL Report, April 24, 2001 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS April 24, 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 23, 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 23, 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 ------------------------------------------------------------------------------ 1824 Kiev, Ukraine 010415 - 010415 1 - 7080 McDonald Obs., Fort Davis, TX 010416 - 010420 5 1 7090 Yarragadee, Australia 010417 - 010422 11 12 7105 Greenbelt, Maryland 010417 - 010420 6 2 7110 Monument Peak, California 010418 - 010418 1 - 7210 Haleakala Obs., Maui, Hawaii 010419 - 010420 1 1 7237 Changchun, China 010416 - 010421 5 - 7249 Beijing, China 010416 - 010421 4 - 7403 Arequipa, Peru (TLRS-3) 010416 - 010420 2 7 7501 Hartebeesthoek, SA (MOB-6) 010418 - 010420 1 3 7811 Borowiec, Poland 010419 - 010419 1 - 7820 Kunming, China 010416 - 010422 8 4 7824 San Fernando, Spain 010419 - 010423 3 - 7832 Riyad, Saudi Arabia 010417 - 010419 2 3 7835 Grasse, France 010416 - 010422 11 5 7836 Potsdam, Germany 010419 - 010419 1 - 7837 Shanghai Observatory, China 010417 - 010418 4 1 7838 Simosato Observatory, Japan 010416 - 010416 1 - 7839 Graz, Austria 010418 - 010418 2 1 7840 Herstmonceux, United Kingdom 010416 - 010423 11 6 7845 Grasse, France (LLR) 010417 - 010420 3 3 7849 Mount Stromlo, Australia 010416 - 010423 4 6 ------ ------ --- --- TOTAL 010415 - 010423 88 55 ------------------------------------------------------------------------------ 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 12, 2001 to Sun, Apr 22, 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 22 17 Number of Passes 151/148 93/ 93 Number of Normal Points 1423/1352 1124/1098 RMS of Fit (mm) 29 26 ----------------------------------------------------------------------- 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 1824 (Kiev) (Position solved, acc. 200 mm) 1824 15 Apr 01 22:34 LAG1 4 0 5 0 +- 338 0 +- 382 5 Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm) 7080 12 Apr 01 01:39 LAG1 4 0 27 18 +- 214 4 +- 98 2 7080 12 Apr 01 04:33 LAG2 1 0 64 0 +- 0 0 +- 0 0 7080 12 Apr 01 11:25 LAG1 16 0 28 27 +- 27 0 +- 18 6 7080 12 Apr 01 13:55 LAG2 8 0 31 30 +- 113 -1 +- 92 2 7080 13 Apr 01 10:05 LAG1 9 0 11 -9 +- 42 2 +- 39 5 7080 16 Apr 01 09:24 LAG1 10 0 35 2 +- 39 23 +- 25 2 7080 16 Apr 01 13:11 LAG1 10 0 17 17 +- 41 -2 +- 58 3 7080 19 Apr 01 08:52 LAG1 11 0 12 -5 +- 40 -7 +- 26 8 7080 19 Apr 01 12:30 LAG1 7 0 21 -25 +- 61 -6 +- 83 3 7080 19 Apr 01 12:49 LAG2 3 0 36 -25 +- 475 11 +- 500 1 7080 20 Apr 01 07:35 LAG1 12 0 18 20 +- 35 12 +- 31 2 7080 20 Apr 01 11:08 LAG1 7 0 32 -26 +- 54 9 +- 63 3 Station 7090 (Yarragadee) (Position fixed, acc. 10 mm) 7090 13 Apr 01 08:07 LAG1 11 0 14 -2 +- 29 8 +- 17 4 7090 13 Apr 01 10:15 LAG2 13 0 27 23 +- 27 -14 +- 39 1 7090 13 Apr 01 14:03 LAG2 22 0 19 -5 +- 21 -9 +- 11 1 7090 14 Apr 01 06:49 LAG1 14 0 9 -8 +- 28 0 +- 20 1 7090 14 Apr 01 10:25 LAG1 12 0 24 32 +- 37 -19 +- 39 3 7090 14 Apr 01 12:13 LAG2 19 0 23 15 +- 22 -9 +- 16 2 7090 14 Apr 01 16:17 LAG2 10 0 14 -29 +- 113 -10 +- 77 0 7090 15 Apr 01 08:57 LAG1 13 0 16 16 +- 28 -2 +- 21 2 7090 15 Apr 01 10:27 LAG2 18 0 5 0 +- 23 -4 +- 22 2 7090 15 Apr 01 14:17 LAG2 23 0 16 -3 +- 20 -9 +- 11 1 7090 15 Apr 01 18:39 LAG2 13 0 21 -22 +- 29 -2 +- 24 3 7090 15 Apr 01 21:17 LAG1 20 0 26 -14 +- 23 8 +- 12 6 7090 15 Apr 01 23:01 LAG2 13 0 25 25 +- 26 -5 +- 28 2 7090 16 Apr 01 00:57 LAG1 7 1 32 43 +- 59 31 +- 97 3 7090 16 Apr 01 04:13 LAG1 8 0 40 -37 +- 34 20 +- 60 4 7090 17 Apr 01 10:05 LAG1 6 0 33 38 +- 248 -2 +- 148 0 7090 17 Apr 01 10:35 LAG2 22 0 32 -29 +- 20 -6 +- 15 4 7090 17 Apr 01 14:45 LAG2 19 0 13 0 +- 25 -10 +- 19 1 7090 18 Apr 01 08:15 LAG1 22 0 18 16 +- 20 -5 +- 11 8 7090 18 Apr 01 12:41 LAG2 17 0 21 0 +- 23 -11 +- 12 1 7090 18 Apr 01 16:51 LAG2 22 0 22 -1 +- 20 -18 +- 17 2 7090 18 Apr 01 20:43 LAG1 14 0 11 -17 +- 51 -11 +- 26 2 7090 18 Apr 01 21:23 LAG2 19 0 18 6 +- 29 9 +- 19 1 7090 19 Apr 01 00:25 LAG1 6 1 13 -24 +- 90 -22 +- 130 2 7090 19 Apr 01 06:57 LAG1 19 0 15 11 +- 23 -7 +- 13 3 7090 19 Apr 01 10:37 LAG1 10 0 2 0 +- 31 -3 +- 54 1 7090 19 Apr 01 10:55 LAG2 12 0 18 -16 +- 32 -2 +- 21 1 7090 19 Apr 01 14:49 LAG2 20 0 22 15 +- 21 -12 +- 17 1 7090 19 Apr 01 19:05 LAG2 9 0 10 -34 +- 169 -15 +- 103 2 7090 19 Apr 01 19:23 LAG1 23 0 22 -11 +- 20 10 +- 12 6 7090 19 Apr 01 22:57 LAG1 10 0 34 -30 +- 64 3 +- 42 2 7090 19 Apr 01 23:21 LAG2 10 0 54 52 +- 31 18 +- 24 10 7090 20 Apr 01 05:51 LAG1 7 0 7 0 +- 59 -5 +- 43 2 7090 21 Apr 01 07:49 LAG1 10 0 12 4 +- 30 -10 +- 30 4 7090 21 Apr 01 11:17 LAG2 11 0 30 -37 +- 43 6 +- 28 2 7090 21 Apr 01 15:21 LAG2 17 0 39 43 +- 34 -4 +- 28 2 Station 7105 (Greenbelt) (Position fixed, acc. 10 mm) 7105 14 Apr 01 05:11 LAG1 17 0 14 11 +- 23 -7 +- 16 2 7105 14 Apr 01 08:33 LAG1 8 0 14 -27 +- 124 -6 +- 62 1 7105 14 Apr 01 14:29 LAG2 18 0 18 -3 +- 27 13 +- 18 2 7105 14 Apr 01 18:49 LAG2 12 0 11 -13 +- 67 1 +- 42 2 7105 14 Apr 01 20:59 LAG1 5 0 4 -25 +- 252 -14 +- 152 1 7105 14 Apr 01 22:47 LAG2 6 0 40 -44 +- 53 -7 +- 74 4 7105 15 Apr 01 04:03 LAG1 4 0 34 34 +- 50 0 +- 156 0 7105 17 Apr 01 13:01 LAG2 3 0 8 16 +- 222 -19 +- 404 5 7105 18 Apr 01 00:13 LAG1 8 0 27 -3 +- 77 -16 +- 52 2 7105 18 Apr 01 14:55 LAG2 17 0 8 -9 +- 26 1 +- 17 3 7105 18 Apr 01 22:41 LAG1 1 0 24 0 +- 0 0 +- 0 0 7105 19 Apr 01 02:23 LAG1 3 0 38 -31 +- 418 -6 +- 349 3 7105 19 Apr 01 05:25 LAG1 12 0 26 15 +- 28 -17 +- 25 2 7105 19 Apr 01 08:47 LAG1 21 0 32 -30 +- 22 0 +- 12 10 7105 20 Apr 01 00:53 LAG1 10 0 18 -9 +- 42 -7 +- 29 2 Station 7110 (Monument Peak) (Position fixed, acc. 10 mm) 7110 13 Apr 01 02:15 LAG2 10 0 12 -23 +- 58 -12 +- 42 2 7110 18 Apr 01 03:43 LAG1 6 0 12 -7 +- 48 7 +- 55 2 Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm) 7210 19 Apr 01 06:51 LAG2 12 0 36 33 +- 31 14 +- 33 8 7210 20 Apr 01 11:20 LAG1 3 0 35 53 +- 168 23 +- 194 3 Station 7237 (Changchun) (Position fixed, acc. 50 mm) 7237 12 Apr 01 11:35 LAG2 11 0 19 22 +- 63 -9 +- 71 5 7237 12 Apr 01 12:33 LAG1 3 0 31 45 +- 521 -14 +- 517 1 7237 12 Apr 01 15:55 LAG1 4 0 42 -83 +- 353 39 +- 314 7 7237 12 Apr 01 19:01 LAG1 2 0 23 -757 +-7955 -303 +-3110 0 7237 13 Apr 01 11:19 LAG1 7 0 63 -5 +- 386 28 +- 161 9 7237 13 Apr 01 14:40 LAG1 3 0 13 -77 +- 697 55 +- 464 3 7237 14 Apr 01 12:05 LAG2 3 0 34 -63 +-1310 65 +- 886 0 7237 14 Apr 01 13:03 LAG1 11 0 35 -3 +- 54 34 +- 55 6 7237 14 Apr 01 16:31 LAG1 4 0 48 -38 +- 87 22 +- 75 2 7237 14 Apr 01 19:53 LAG1 2 0 11 314 +-4740 142 +-2205 0 7237 15 Apr 01 12:01 LAG1 3 0 63 -149 +- 503 156 +- 390 7 7237 16 Apr 01 17:25 LAG1 6 0 30 -50 +- 148 25 +- 130 9 7237 19 Apr 01 13:31 LAG1 4 0 40 -50 +- 328 10 +- 311 6 7237 19 Apr 01 16:53 LAG1 9 0 35 -65 +- 144 22 +- 82 9 7237 21 Apr 01 14:13 LAG1 9 0 48 -56 +- 116 6 +- 85 7 7237 21 Apr 01 17:25 LAG1 17 0 19 -12 +- 43 8 +- 25 9 Station 7249 (Beijing) (Position fixed, acc. 50 mm) 7249 13 Apr 01 14:23 LAG1 8 0 41 -21 +- 81 16 +- 69 17 7249 13 Apr 01 17:51 LAG1 9 0 35 -35 +- 58 -2 +- 65 5 7249 14 Apr 01 11:44 LAG2 9 0 82 -67 +- 68 -16 +- 70 28 7249 14 Apr 01 16:37 LAG1 5 0 27 6 +- 100 -29 +- 152 22 7249 14 Apr 01 20:05 LAG1 5 0 183 184 +- 81 -1 +- 150 2 7249 15 Apr 01 11:55 LAG1 6 0 66 10 +- 72 -82 +- 142 48 7249 16 Apr 01 14:10 LAG1 3 0 16 30 +- 574 -12 +- 483 3 7249 16 Apr 01 17:26 LAG1 3 0 87 -52 +- 208 -63 +- 364 10 7249 20 Apr 01 18:41 LAG1 16 0 48 -42 +- 43 10 +- 25 10 7249 21 Apr 01 17:29 LAG1 14 2 56 22 +- 51 36 +- 69 46 Station 7403 (Arequipa) (Position fixed, acc. 10 mm) 7403 16 Apr 01 01:26 LAG2 8 0 19 17 +- 33 -10 +- 43 1 7403 18 Apr 01 01:37 LAG2 15 0 15 15 +- 25 -2 +- 22 2 7403 18 Apr 01 06:07 LAG2 7 0 9 -7 +- 38 -10 +- 162 4 7403 18 Apr 01 09:41 LAG1 6 0 9 4 +- 63 -3 +- 44 1 7403 19 Apr 01 04:00 LAG2 5 0 11 10 +- 55 5 +- 176 1 7403 19 Apr 01 08:19 LAG2 13 0 16 11 +- 29 20 +- 35 1 7403 20 Apr 01 01:48 LAG2 11 0 26 26 +- 28 0 +- 26 2 7403 20 Apr 01 06:23 LAG2 10 0 7 8 +- 37 -12 +- 60 3 7403 20 Apr 01 07:01 LAG1 9 0 52 57 +- 37 12 +- 44 5 Station 7501 (Hartebeesthoek) (Position solved, acc. 10 mm) 7501 12 Apr 01 17:05 LAG1 3 0 65 66 +- 90 -4 +- 450 0 7501 12 Apr 01 19:25 LAG2 21 0 16 -8 +- 23 -11 +- 15 3 7501 18 Apr 01 15:53 LAG1 12 0 12 3 +- 41 -13 +- 36 1 7501 18 Apr 01 16:29 LAG2 12 0 3 -3 +- 44 0 +- 39 1 7501 18 Apr 01 20:21 LAG2 15 0 19 -4 +- 25 17 +- 22 3 7501 20 Apr 01 20:45 LAG2 13 0 18 7 +- 39 9 +- 30 0 Station 7811 (Borowiec) (Position fixed, acc. 60 mm) 7811 19 Apr 01 20:43 LAG1 7 0 43 -80 +- 182 -47 +- 133 25 Station 7820 (Kunming) (Position solved, acc. 80 mm) 7820 14 Apr 01 11:51 LAG2 4 0 17 16 +- 389 0 +- 475 5 7820 15 Apr 01 12:07 LAG1 11 0 30 32 +- 106 -3 +- 85 5 7820 15 Apr 01 13:52 LAG2 9 0 9 2 +- 103 1 +- 157 9 7820 15 Apr 01 18:53 LAG1 5 0 18 -30 +- 652 21 +- 369 15 7820 15 Apr 01 22:05 LAG1 9 0 46 42 +- 86 -1 +- 105 16 7820 16 Apr 01 11:59 LAG2 11 0 9 2 +- 88 0 +- 86 9 7820 16 Apr 01 17:21 LAG1 8 0 26 20 +- 92 -18 +- 162 15 7820 16 Apr 01 20:47 LAG1 8 0 62 60 +- 111 1 +- 82 8 7820 17 Apr 01 19:35 LAG1 6 0 8 18 +- 346 -8 +- 222 4 7820 18 Apr 01 12:11 LAG2 13 0 11 -3 +- 74 7 +- 70 6 7820 18 Apr 01 18:19 LAG1 4 0 36 84 +- 803 -81 +- 572 13 7820 18 Apr 01 21:19 LAG1 19 0 32 -29 +- 60 -5 +- 36 15 7820 19 Apr 01 20:23 LAG1 7 0 6 3 +- 352 -2 +- 186 6 7820 20 Apr 01 12:13 LAG1 7 0 65 -70 +- 160 -6 +- 171 3 7820 20 Apr 01 12:27 LAG2 9 0 33 -25 +- 105 12 +- 130 5 7820 21 Apr 01 20:57 LAG1 7 0 43 -29 +- 97 20 +- 64 16 Station 7824 (San Fernando) (Position fixed, acc. 40 mm) 7824 12 Apr 01 00:33 LAG1 7 0 67 88 +- 134 32 +- 109 40 7824 19 Apr 01 01:41 LAG1 6 0 144 153 +- 66 -60 +- 86 29 Station 7832 (Riyad) (Position solved, acc. 20 mm) 7832 17 Apr 01 09:27 LAG2 7 0 11 -1 +- 131 -13 +- 140 4 7832 18 Apr 01 15:11 LAG1 14 0 26 -2 +- 32 -11 +- 22 19 7832 18 Apr 01 15:53 LAG2 18 0 14 13 +- 25 0 +- 19 5 7832 19 Apr 01 13:45 LAG1 11 1 4 -3 +- 39 1 +- 34 4 7832 19 Apr 01 14:17 LAG2 10 0 23 -49 +- 89 27 +- 54 14 Station 7835 (Grasse) (Position fixed, acc. 30 mm) 7835 12 Apr 01 10:39 LAG2 13 0 19 -19 +- 35 0 +- 28 5 7835 12 Apr 01 19:55 LAG1 14 0 17 13 +- 41 3 +- 26 1 7835 12 Apr 01 23:27 LAG1 8 0 10 -18 +- 114 15 +- 75 2 7835 13 Apr 01 08:49 LAG2 13 0 20 19 +- 35 -5 +- 33 2 7835 13 Apr 01 13:05 LAG2 14 0 24 -36 +- 65 28 +- 40 4 7835 13 Apr 01 18:35 LAG1 4 0 8 -2 +- 133 6 +- 159 1 7835 15 Apr 01 15:53 LAG1 12 0 15 -19 +- 49 12 +- 35 3 7835 15 Apr 01 17:11 LAG2 19 0 11 -6 +- 29 5 +- 20 6 7835 15 Apr 01 19:31 LAG1 7 0 23 -4 +- 120 18 +- 83 0 7835 15 Apr 01 22:37 LAG1 13 0 17 -3 +- 37 13 +- 31 1 7835 16 Apr 01 01:53 LAG1 21 0 12 -6 +- 27 3 +- 12 6 7835 16 Apr 01 18:21 LAG1 3 0 16 -54 +-1085 30 +- 470 1 7835 16 Apr 01 19:09 LAG2 10 0 14 7 +- 42 -7 +- 34 3 7835 16 Apr 01 21:11 LAG1 14 0 26 6 +- 33 14 +- 19 2 7835 17 Apr 01 00:33 LAG1 12 0 8 -22 +- 95 -10 +- 45 1 7835 17 Apr 01 20:15 LAG1 9 0 20 -18 +- 84 -1 +- 59 0 7835 17 Apr 01 23:37 LAG1 6 0 8 0 +- 87 -9 +- 99 0 7835 18 Apr 01 07:24 LAG2 5 0 7 -5 +- 138 3 +- 165 1 7835 18 Apr 01 19:23 LAG2 20 0 10 6 +- 28 6 +- 25 4 7835 18 Apr 01 22:04 LAG1 11 0 12 3 +- 38 -7 +- 23 1 7835 19 Apr 01 09:35 LAG2 13 0 20 -12 +- 47 18 +- 34 5 7835 19 Apr 01 21:05 LAG1 4 0 11 -28 +- 254 15 +- 218 1 7835 20 Apr 01 00:01 LAG1 6 0 5 35 +- 486 13 +- 196 1 7835 20 Apr 01 07:28 LAG2 17 0 18 -17 +- 30 0 +- 20 4 7835 20 Apr 01 22:47 LAG1 2 0 29 42 +-1141 6 +- 527 0 7835 21 Apr 01 21:47 LAG1 6 0 25 21 +- 110 4 +- 111 1 Station 7836 (Potsdam) (Position fixed, acc. 30 mm) 7836 12 Apr 01 00:32 LAG1 9 0 23 13 +- 42 -9 +- 35 13 7836 19 Apr 01 20:51 LAG1 8 0 13 -17 +- 60 10 +- 45 3 Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm) 7837 12 Apr 01 11:32 LAG2 16 0 86 -81 +- 43 -22 +- 36 8 7837 12 Apr 01 12:27 LAG1 4 0 20 31 +- 206 23 +- 327 4 7837 12 Apr 01 15:51 LAG1 4 0 6 -11 +- 151 16 +- 245 2 7837 12 Apr 01 19:09 LAG1 14 0 49 -65 +- 63 19 +- 38 7 7837 13 Apr 01 11:14 LAG1 10 0 14 -8 +- 102 12 +- 69 8 7837 13 Apr 01 17:53 LAG1 5 0 51 -53 +- 108 5 +- 160 8 7837 14 Apr 01 11:57 LAG2 10 0 72 -62 +- 76 -13 +- 81 5 7837 14 Apr 01 20:09 LAG1 7 0 19 -73 +- 294 40 +- 147 5 7837 17 Apr 01 15:59 LAG1 5 0 38 -37 +- 80 27 +- 155 11 7837 17 Apr 01 19:15 LAG1 3 0 125 -270 +-1156 -76 +- 596 13 7837 18 Apr 01 11:17 LAG1 11 0 36 -34 +- 53 -16 +- 55 11 7837 18 Apr 01 12:25 LAG2 9 0 20 -15 +- 99 -5 +- 118 5 7837 18 Apr 01 18:07 LAG1 8 0 68 -85 +- 111 17 +- 86 6 Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm) 7838 16 Apr 01 10:35 LAG1 5 0 99999144864 +- 81 3600 +- 127 591 Station 7839 (Graz) (Position fixed, acc. 10 mm) 7839 12 Apr 01 19:43 LAG1 12 0 30 29 +- 27 -6 +- 16 4 7839 13 Apr 01 18:12 LAG1 17 0 17 17 +- 32 0 +- 17 1 7839 13 Apr 01 21:41 LAG1 21 0 12 11 +- 21 -2 +- 12 1 7839 14 Apr 01 01:05 LAG1 22 0 33 16 +- 20 -12 +- 9 1 7839 18 Apr 01 02:41 LAG1 29 0 15 7 +- 17 -6 +- 8 3 7839 18 Apr 01 07:17 LAG2 26 0 28 23 +- 19 6 +- 11 4 7839 18 Apr 01 22:11 LAG1 12 0 21 27 +- 37 -15 +- 23 1 Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm) 7840 12 Apr 01 10:34 LAG2 14 0 13 13 +- 29 3 +- 21 3 7840 13 Apr 01 08:45 LAG2 12 0 28 28 +- 32 0 +- 24 2 7840 13 Apr 01 12:55 LAG2 11 0 27 2 +- 36 18 +- 25 2 7840 13 Apr 01 16:57 LAG2 14 0 17 -18 +- 32 1 +- 24 2 7840 13 Apr 01 18:25 LAG1 8 0 8 9 +- 96 1 +- 57 1 7840 14 Apr 01 01:18 LAG1 15 0 14 10 +- 27 -5 +- 17 4 7840 15 Apr 01 19:29 LAG1 6 0 15 14 +- 92 0 +- 82 1 7840 16 Apr 01 05:53 LAG1 9 0 11 9 +- 36 11 +- 63 2 7840 16 Apr 01 11:01 LAG2 9 0 6 0 +- 42 2 +- 21 2 7840 17 Apr 01 09:08 LAG2 8 0 21 -1 +- 38 11 +- 21 2 7840 17 Apr 01 13:29 LAG2 4 0 1 0 +- 54 0 +- 165 1 7840 17 Apr 01 20:04 LAG1 13 0 4 -1 +- 30 -2 +- 23 2 7840 18 Apr 01 22:35 LAG1 2 0 11 -76 +-1889 31 +- 887 0 7840 19 Apr 01 01:33 LAG1 17 0 13 3 +- 26 -7 +- 14 3 7840 19 Apr 01 05:15 LAG1 13 0 54 -54 +- 30 7 +- 33 3 7840 19 Apr 01 13:39 LAG2 12 0 3 -2 +- 36 2 +- 27 1 7840 19 Apr 01 21:01 LAG1 3 0 7 8 +- 93 -3 +- 114 0 7840 20 Apr 01 00:19 LAG1 9 0 30 26 +- 36 8 +- 27 2 7840 20 Apr 01 19:37 LAG1 10 0 16 4 +- 47 -10 +- 27 1 7840 20 Apr 01 22:52 LAG1 14 0 48 47 +- 28 -1 +- 17 7 7840 21 Apr 01 02:29 LAG1 15 0 23 -13 +- 33 17 +- 20 2 Station 7845 (Grasse) (Position fixed, acc. 20 mm) 7845 12 Apr 01 03:57 LAG1 11 0 20 3 +- 56 -11 +- 38 6 7845 12 Apr 01 19:55 LAG1 15 0 22 -19 +- 35 17 +- 22 5 7845 12 Apr 01 23:22 LAG1 13 0 27 -43 +- 53 14 +- 31 4 7845 13 Apr 01 08:43 LAG2 20 0 10 3 +- 25 -5 +- 15 5 7845 13 Apr 01 12:51 LAG2 24 0 62 -60 +- 24 32 +- 14 15 7845 13 Apr 01 14:57 LAG1 18 0 48 -40 +- 29 33 +- 18 8 7845 14 Apr 01 01:09 LAG1 9 0 20 -51 +- 102 -18 +- 47 3 7845 17 Apr 01 20:17 LAG1 13 0 38 -52 +- 77 8 +- 38 6 7845 18 Apr 01 11:37 LAG2 8 0 49 -49 +- 67 0 +- 54 4 7845 19 Apr 01 17:49 LAG2 16 0 21 -16 +- 49 17 +- 28 7 7845 19 Apr 01 20:40 LAG1 21 0 46 -47 +- 24 4 +- 14 6 7845 20 Apr 01 00:07 LAG1 10 0 17 -13 +- 34 -5 +- 20 7 7845 20 Apr 01 15:56 LAG2 5 0 44 -58 +- 90 8 +- 42 5 Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm) 7849 12 Apr 01 06:05 LAG1 9 0 18 -33 +- 72 25 +- 45 1 7849 12 Apr 01 12:17 LAG2 9 0 13 7 +- 32 -7 +- 20 1 7849 12 Apr 01 16:43 LAG2 11 0 21 19 +- 31 3 +- 45 5 7849 12 Apr 01 18:17 LAG1 9 0 34 -55 +- 59 -22 +- 45 3 7849 12 Apr 01 20:51 LAG2 7 0 36 -37 +- 40 -8 +- 73 5 7849 13 Apr 01 08:07 LAG1 12 0 12 6 +- 28 11 +- 36 3 7849 13 Apr 01 10:19 LAG2 16 0 14 13 +- 24 2 +- 13 3 7849 13 Apr 01 14:43 LAG2 16 0 15 -6 +- 35 16 +- 29 4 7849 13 Apr 01 16:57 LAG1 7 0 27 -26 +- 36 -12 +- 38 3 7849 13 Apr 01 20:37 LAG1 14 0 9 3 +- 37 -7 +- 22 3 7849 14 Apr 01 06:50 LAG1 13 0 6 -8 +- 47 1 +- 29 2 7849 14 Apr 01 08:43 LAG2 8 0 71 70 +- 39 0 +- 47 8 7849 14 Apr 01 12:33 LAG2 9 0 8 -5 +- 35 5 +- 23 1 7849 14 Apr 01 16:59 LAG2 12 0 18 9 +- 33 14 +- 39 1 7849 14 Apr 01 19:17 LAG1 2 0 41 -36 +- 271 10 +- 595 0 7849 14 Apr 01 21:03 LAG2 8 0 26 -25 +- 37 3 +- 64 5 7849 15 Apr 01 10:33 LAG2 19 0 21 1 +- 22 12 +- 12 3 7849 15 Apr 01 19:07 LAG2 11 0 8 0 +- 29 7 +- 24 2 7849 16 Apr 01 04:13 LAG1 8 0 28 -9 +- 104 20 +- 58 2 7849 16 Apr 01 07:25 LAG1 10 0 13 4 +- 53 14 +- 45 2 7849 16 Apr 01 08:51 LAG2 11 0 14 -11 +- 29 7 +- 31 4 7849 16 Apr 01 12:41 LAG2 4 0 2 3 +- 693 2 +- 336 1 7849 16 Apr 01 16:19 LAG1 5 1 29 -54 +- 127 -28 +- 124 5 7849 16 Apr 01 17:20 LAG2 2 0 4 2 +- 96 -6 +- 111 0 7849 16 Apr 01 19:59 LAG1 13 0 10 5 +- 28 3 +- 21 5 7849 16 Apr 01 21:21 LAG2 2 0 5 9 +- 109 17 +- 344 0 7849 17 Apr 01 15:09 LAG2 4 0 5 6 +- 197 10 +- 259 4 -------------------------------------------------------------------------------- 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 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 - 010420 44/ 93/ 9 46/ 83/ 11 286 7090 ML0514 001101 - 010422 110/119/ 21 105/139/ 10 504 7105 ML0725 001101 - 010420 37/201/ 14 42/149/ 12 455 7110 ML0414 001101 - 010418 26/176/ 13 17/130/ 9 371 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 - 010421 0/125/ 0 0/ 86/ 0 211 7249 BEJLAS 001101 - 010421 0/ 50/ 0 0/ 32/ 0 82 7335 KASLAS 001108 - 010118 4/ 16/ 1 5/ 15/ 1 42 7339 TATLAS 001107 - 010216 21/ 28/ 0 8/ 26/ 3 86 7403 TLRS3 001101 - 010420 0/ 19/ 1 1/ 22/ 1 44 7501 ML0616 001101 - 010420 32/ 35/ 9 24/ 31/ 1 132 7806 METLAS 010209 - 010410 0/ 40/ 0 0/ 8/ 0 48 7810 ZIMLAT 001102 - 010407 16/ 35/ 1 12/ 18/ 4 86 7811 POLLAS 001103 - 010419 0/ 90/ 0 0/ 45/ 0 135 7820 YSLR01 001101 - 010422 0/145/ 2 0/171/ 1 319 7824 SPNLAS 001101 - 010423 2/ 89/ 2 2/ 84/ 2 181 7831 HELLAS 001101 - 001104 0/ 3/ 0 0/ 1/ 0 4 7832 SALRO 001211 - 010419 16/ 17/ 5 47/ 12/ 4 101 7835 GRASSE 001101 - 010422 13/119/ 5 24/ 80/ 3 244 7836 GFZLAS 001101 - 010419 5/ 90/ 5 3/ 58/ 2 163 7837 CHILAS 001102 - 010418 0/ 77/ 0 0/ 59/ 1 137 7838 SHOLAS 001107 - 010416 2/ 93/ 0 7/ 91/ 2 195 7839 AUSLAS 001102 - 010418 19/ 92/ 4 25/ 65/ 4 209 7840 RGOLAS 001102 - 010423 40/146/ 10 38/104/ 8 346 7845 GRASLL 001103 - 010420 17/ 43/ 1 35/ 26/ 1 123 7849 MSLO01 001101 - 010423 163/ 54/ 22 142/ 70/ 12 463 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) -------------------------------------------------------------- 010415.0 124.6 +/- 0.1 482.5 +/- 0.1 -31986.25 +/- 0.01 010418.0 134.4 +/- 0.1 479.9 +/- 0.1 -31987.65 +/- 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 ******************************************************************************** |