| Date: | 2001-04-10 09:45:00 | |
| Sender: | Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>> | |
| Subject: | [SLR-Report] No. 834: Delft QL Report, April 10, 2001 | |
| Author: | Ron Noomen, DEOS, Delft, The Netherlands | |
| Content: | ******************************************************************************** SLR Electronic Report 2001-04-10 09:45:00 UTC Message No. 834 ******************************************************************************** Author: Ron Noomen, DEOS, Delft, The Netherlands Subject: Delft QL Report, April 10, 2001 WEGENER-2 IERS REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER DELFT UNIVERSITY OF TECHNOLOGY FACULTY OF AEROSPACE ENGINEERING THE NETHERLANDS April 10, 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 9, 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 9, 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 010402 - 010404 3 1 1884 Riga, Latvia 010406 - 010406 1 - 7080 McDonald Obs., Fort Davis, TX 010402 - 010409 9 7 7090 Yarragadee, Australia 010402 - 010407 8 10 7105 Greenbelt, Maryland 010402 - 010409 10 8 7110 Monument Peak, California 010403 - 010405 2 - 7210 Haleakala Obs., Maui, Hawaii 010406 - 010406 1 1 7237 Changchun, China 010330 - 010406 4 3 7249 Beijing, China 010402 - 010402 2 - 7403 Arequipa, Peru (TLRS-3) 010402 - 010409 4 3 7501 Hartebeesthoek, SA (MOB-6) 010402 - 010406 3 2 7806 Metsahovi, Finland 010402 - 010403 3 - 7810 Zimmerwald, Switzerland 010402 - 010407 6 4 7811 Borowiec, Poland 010402 - 010406 4 - 7820 Kunming, China 010406 - 010408 2 2 7824 San Fernando, Spain 010403 - 010408 4 1 7832 Riyad, Saudi Arabia 010402 - 010409 6 13 7835 Grasse, France 010401 - 010409 13 9 7836 Potsdam, Germany 010402 - 010405 5 - 7837 Shanghai Observatory, China 010403 - 010405 5 2 7839 Graz, Austria 010403 - 010406 2 3 7840 Herstmonceux, United Kingdom 010328 - 010409 9 5 7845 Grasse, France (LLR) 010402 - 010409 6 7 7849 Mount Stromlo, Australia 010401 - 010409 4 8 ------ ------ --- --- TOTAL 010328 - 010409 116 89 ------------------------------------------------------------------------------ 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, Mar 29, 2001 to Sun, Apr 8, 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 24 19 Number of Passes 169/168 124/122 Number of Normal Points 1750/1691 1549/1505 RMS of Fit (mm) 39 32 ----------------------------------------------------------------------- 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 2 Apr 01 17:48 LAG2 4 1 231 -229 +- 354 1 +- 598 24 1824 2 Apr 01 19:07 LAG1 4 0 179 -38 +-3555 60 +-1521 5 1824 3 Apr 01 21:25 LAG1 3 0 146 160 +-1506 18 +-1837 2 1824 4 Apr 01 00:47 LAG1 10 0 301 119 +- 196 64 +- 98 230 Station 1884 (Riga) (Position fixed, acc. 100 mm) 1884 6 Apr 01 20:55 LAG1 7 0 98 -98 +- 118 -8 +- 163 3 Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm) 7080 1 Apr 01 01:17 LAG2 13 0 25 -11 +- 71 -7 +- 40 4 7080 1 Apr 01 05:01 LAG2 11 0 27 -27 +- 32 -4 +- 32 3 7080 1 Apr 01 08:51 LAG1 8 0 33 13 +- 38 -20 +- 27 3 7080 1 Apr 01 12:18 LAG1 11 0 39 -4 +- 33 -20 +- 18 2 7080 1 Apr 01 14:46 LAG2 1 0 1 0 +- 0 0 +- 0 0 7080 2 Apr 01 03:42 LAG2 1 0 21 0 +- 0 0 +- 0 0 7080 2 Apr 01 10:51 LAG1 11 0 11 3 +- 62 -4 +- 36 4 7080 3 Apr 01 13:26 LAG1 1 0 13 0 +- 0 0 +- 0 0 7080 3 Apr 01 22:29 LAG1 2 0 29 98 +-1096 -46 +- 730 0 7080 3 Apr 01 23:27 LAG2 5 0 28 -32 +- 54 -29 +- 158 0 7080 4 Apr 01 03:47 LAG2 2 0 6 93 +-2924 -57 +-1943 0 7080 4 Apr 01 08:20 LAG1 8 0 12 11 +- 40 14 +- 53 1 7080 4 Apr 01 11:45 LAG1 17 0 11 0 +- 26 -2 +- 18 10 7080 7 Apr 01 19:28 LAG2 16 0 7 -4 +- 27 -2 +- 27 5 7080 7 Apr 01 23:39 LAG1 7 0 63 90 +- 154 15 +- 84 3 Station 7090 (Yarragadee) (Position fixed, acc. 10 mm) 7090 29 Mar 01 11:05 LAG1 5 0 38 33 +- 46 -27 +- 136 0 7090 29 Mar 01 14:21 LAG2 20 0 32 9 +- 21 -15 +- 10 3 7090 30 Mar 01 09:45 LAG1 10 0 12 16 +- 49 -15 +- 37 2 7090 30 Mar 01 12:35 LAG2 18 0 33 15 +- 22 -22 +- 17 1 7090 30 Mar 01 16:29 LAG2 27 0 13 -10 +- 18 0 +- 11 7 7090 30 Mar 01 20:51 LAG2 28 0 17 0 +- 18 13 +- 13 2 7090 30 Mar 01 22:10 LAG1 14 0 10 2 +- 26 7 +- 19 2 7090 31 Mar 01 01:01 LAG2 18 0 14 15 +- 26 10 +- 20 3 7090 31 Mar 01 01:37 LAG1 6 0 25 25 +- 39 12 +- 47 5 7090 1 Apr 01 13:01 LAG2 16 0 14 2 +- 34 -12 +- 25 1 7090 1 Apr 01 16:47 LAG2 27 0 11 -8 +- 18 -4 +- 13 4 7090 1 Apr 01 19:23 LAG1 14 0 41 -41 +- 25 -3 +- 26 4 7090 2 Apr 01 09:29 LAG1 5 0 38 6 +- 699 -17 +- 271 1 7090 2 Apr 01 14:52 LAG2 18 0 10 -2 +- 32 -4 +- 18 5 7090 3 Apr 01 07:43 LAG1 16 0 10 -12 +- 29 2 +- 17 1 7090 3 Apr 01 11:17 LAG1 9 0 3 -1 +- 32 -6 +- 63 1 7090 3 Apr 01 12:57 LAG2 22 0 30 -18 +- 21 -12 +- 14 3 7090 3 Apr 01 17:03 LAG2 27 0 32 0 +- 18 -24 +- 13 2 7090 3 Apr 01 20:15 LAG1 13 0 63 -13 +- 29 42 +- 18 2 7090 3 Apr 01 21:21 LAG2 21 0 35 -36 +- 24 -2 +- 18 3 7090 3 Apr 01 23:39 LAG1 12 0 53 -6 +- 36 38 +- 28 2 7090 5 Apr 01 08:33 LAG1 3 0 7 7 +- 203 0 +- 262 0 7090 5 Apr 01 13:13 LAG2 13 0 27 -16 +- 26 -9 +- 13 2 7090 5 Apr 01 17:19 LAG2 25 0 31 14 +- 19 -23 +- 15 1 7090 6 Apr 01 07:21 LAG1 5 0 8 10 +- 140 -1 +- 107 1 7090 6 Apr 01 10:35 LAG1 15 0 8 -7 +- 25 -5 +- 25 1 7090 6 Apr 01 11:24 LAG2 13 0 65 -69 +- 30 -12 +- 36 4 7090 6 Apr 01 15:21 LAG2 15 0 15 16 +- 27 5 +- 18 3 7090 7 Apr 01 09:09 LAG1 9 0 59 -8 +- 79 -40 +- 48 1 7090 7 Apr 01 13:21 LAG2 26 0 20 3 +- 18 -11 +- 10 3 7090 7 Apr 01 17:43 LAG2 22 0 29 14 +- 22 -28 +- 20 3 Station 7105 (Greenbelt) (Position fixed, acc. 10 mm) 7105 29 Mar 01 02:27 LAG1 6 0 39 -31 +- 52 6 +- 32 5 7105 31 Mar 01 00:19 LAG1 4 0 41 -39 +- 671 0 +- 262 5 7105 2 Apr 01 21:13 LAG2 23 0 22 -9 +- 20 -11 +- 13 3 7105 2 Apr 01 23:11 LAG1 21 0 23 -12 +- 20 -10 +- 11 3 7105 3 Apr 01 01:17 LAG2 17 0 35 -31 +- 23 -5 +- 15 8 7105 3 Apr 01 02:43 LAG1 12 0 15 -4 +- 28 -11 +- 22 4 7105 3 Apr 01 06:01 LAG1 10 0 20 22 +- 34 -5 +- 19 3 7105 3 Apr 01 19:35 LAG2 4 0 14 22 +- 178 -39 +- 202 3 7105 3 Apr 01 23:21 LAG2 10 0 38 -32 +- 31 -18 +- 20 7 7105 4 Apr 01 17:32 LAG2 12 0 16 -2 +- 56 12 +- 37 2 7105 4 Apr 01 21:23 LAG2 25 0 11 -9 +- 19 -2 +- 11 4 7105 5 Apr 01 00:07 LAG1 16 0 30 -25 +- 25 -5 +- 16 3 7105 5 Apr 01 01:29 LAG2 19 0 7 -4 +- 22 3 +- 17 3 7105 5 Apr 01 03:29 LAG1 12 0 39 -27 +- 28 -16 +- 21 4 7105 5 Apr 01 06:55 LAG1 16 0 16 18 +- 29 -11 +- 17 1 7105 5 Apr 01 10:43 LAG1 6 0 26 -57 +- 219 18 +- 125 2 7105 5 Apr 01 19:55 LAG2 6 0 19 -5 +- 202 -8 +- 128 1 7105 6 Apr 01 05:45 LAG1 4 0 8 9 +- 114 -2 +- 169 1 7105 6 Apr 01 08:53 LAG1 21 0 19 -10 +- 21 8 +- 11 7 Station 7110 (Monument Peak) (Position fixed, acc. 10 mm) 7110 29 Mar 01 02:37 LAG2 13 0 30 -12 +- 28 19 +- 17 3 7110 29 Mar 01 03:13 LAG1 5 0 41 -24 +- 367 26 +- 146 3 7110 29 Mar 01 06:15 LAG1 10 0 23 17 +- 31 15 +- 41 1 7110 29 Mar 01 09:23 LAG1 4 0 43 23 +- 55 22 +- 25 2 7110 29 Mar 01 12:53 LAG1 8 0 24 13 +- 75 22 +- 48 3 7110 30 Mar 01 04:47 LAG2 3 0 22 -26 +- 449 -4 +- 366 2 7110 30 Mar 01 04:53 LAG1 10 0 34 29 +- 30 8 +- 22 2 7110 30 Mar 01 08:13 LAG1 11 0 14 1 +- 29 14 +- 29 3 7110 30 Mar 01 11:25 LAG1 17 0 27 -22 +- 24 4 +- 12 5 7110 31 Mar 01 02:43 LAG2 8 0 38 -1 +- 33 -16 +- 14 7 7110 31 Mar 01 03:35 LAG1 9 0 20 19 +- 32 3 +- 20 7 7110 31 Mar 01 07:01 LAG1 2 0 16 -103 +-1140 -191 +-1846 0 7110 31 Mar 01 10:17 LAG1 8 0 18 -15 +- 33 -5 +- 21 2 7110 31 Mar 01 13:51 LAG1 2 0 43 -38 +-1224 -78 +-1177 0 7110 1 Apr 01 04:59 LAG2 4 0 6 -23 +- 257 -23 +- 226 1 7110 3 Apr 01 13:07 LAG1 5 1 20 -4 +- 513 7 +- 252 6 7110 5 Apr 01 00:17 LAG1 5 0 37 -2 +- 207 20 +- 123 1 Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm) 7210 29 Mar 01 06:33 LAG2 10 0 25 21 +- 35 -7 +- 28 5 7210 30 Mar 01 05:41 LAG1 3 0 36 127 +-1040 -39 +- 444 4 7210 30 Mar 01 08:33 LAG2 15 0 36 -35 +- 28 -1 +- 19 6 7210 30 Mar 01 11:49 LAG1 4 0 22 7 +- 178 39 +- 256 8 7210 6 Apr 01 06:27 LAG1 7 0 29 -39 +- 94 13 +- 83 10 7210 6 Apr 01 07:20 LAG2 4 0 42 34 +- 54 16 +- 30 5 Station 7237 (Changchun) (Position fixed, acc. 50 mm) 7237 30 Mar 01 12:23 LAG2 5 0 108 143 +- 774 -29 +- 550 33 7237 2 Apr 01 11:51 LAG1 4 0 17 -17 +- 452 -3 +- 298 13 7237 2 Apr 01 18:47 LAG1 8 0 25 -16 +- 89 -7 +- 66 6 7237 3 Apr 01 12:39 LAG2 4 0 57 51 +- 112 13 +- 313 17 7237 3 Apr 01 17:29 LAG1 3 0 41 -40 +- 100 44 +- 514 3 7237 5 Apr 01 11:23 LAG1 4 0 41 -53 +- 202 -20 +- 277 8 7237 6 Apr 01 10:56 LAG2 11 0 39 30 +- 64 11 +- 60 7 Station 7249 (Beijing) (Position fixed, acc. 50 mm) 7249 2 Apr 01 11:57 LAG1 3 0 16 53 +- 933 26 +- 646 7 7249 2 Apr 01 18:40 LAG1 6 1 26 -13 +- 80 15 +- 68 10 Station 7403 (Arequipa) (Position fixed, acc. 10 mm) 7403 2 Apr 01 10:24 LAG1 6 0 16 10 +- 95 -4 +- 73 1 7403 3 Apr 01 08:55 LAG1 21 0 40 24 +- 20 19 +- 12 3 7403 3 Apr 01 10:27 LAG2 10 0 12 17 +- 100 3 +- 74 2 7403 5 Apr 01 02:16 LAG2 7 0 39 13 +- 74 14 +- 38 2 7403 5 Apr 01 09:47 LAG1 8 0 8 5 +- 91 -1 +- 55 2 Station 7501 (Hartebeesthoek) (Position solved, acc. 10 mm) 7501 29 Mar 01 18:09 LAG2 14 0 39 41 +- 27 -11 +- 34 3 7501 30 Mar 01 13:46 LAG1 5 0 6 -17 +- 262 12 +- 135 0 7501 30 Mar 01 16:57 LAG1 15 0 47 46 +- 24 -11 +- 26 3 7501 30 Mar 01 19:58 LAG2 22 0 18 -18 +- 21 -2 +- 13 6 7501 31 Mar 01 18:13 LAG2 20 0 21 20 +- 21 -8 +- 17 2 7501 1 Apr 01 14:29 LAG1 4 0 9 0 +- 161 -8 +- 148 0 7501 2 Apr 01 13:05 LAG1 10 0 10 12 +- 57 -11 +- 36 3 7501 2 Apr 01 16:25 LAG1 16 0 10 10 +- 25 -5 +- 22 2 7501 2 Apr 01 18:23 LAG2 22 0 13 -1 +- 21 8 +- 14 3 7501 6 Apr 01 14:31 LAG1 6 1 34 18 +- 98 -16 +- 94 0 7501 6 Apr 01 18:51 LAG2 18 0 62 -41 +- 23 28 +- 17 6 Station 7806 (Metsahovi) (Position fixed, acc. 30 mm) 7806 29 Mar 01 20:59 LAG1 21 0 19 -11 +- 27 6 +- 14 8 7806 30 Mar 01 00:37 LAG1 17 0 21 -19 +- 30 6 +- 19 4 7806 2 Apr 01 19:35 LAG1 5 0 28 -64 +- 461 16 +- 207 3 7806 2 Apr 01 22:35 LAG1 22 0 21 -10 +- 26 9 +- 13 5 7806 3 Apr 01 02:17 LAG1 11 0 35 -29 +- 39 12 +- 37 5 Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm) 7810 30 Mar 01 23:42 LAG1 5 0 49 5 +- 658 -25 +- 307 1 7810 31 Mar 01 02:36 LAG1 16 0 56 -18 +- 50 -23 +- 22 5 7810 31 Mar 01 09:47 LAG2 1 0 16 0 +- 0 0 +- 0 0 7810 31 Mar 01 13:41 LAG2 9 0 10 -28 +- 197 16 +- 123 2 7810 31 Mar 01 14:54 LAG1 17 0 28 -28 +- 48 0 +- 43 4 7810 31 Mar 01 17:47 LAG2 7 0 22 -39 +- 202 13 +- 138 4 7810 31 Mar 01 18:33 LAG1 12 0 60 -32 +- 58 -26 +- 32 3 7810 31 Mar 01 21:55 LAG1 14 0 35 -15 +- 64 -29 +- 46 3 7810 1 Apr 01 11:19 LAG2 8 0 37 11 +- 150 27 +- 90 7 7810 1 Apr 01 15:33 LAG2 18 0 36 -15 +- 51 25 +- 33 1 7810 1 Apr 01 17:11 LAG1 17 0 48 -20 +- 51 -18 +- 26 4 7810 1 Apr 01 19:29 LAG2 20 0 49 -50 +- 45 2 +- 31 5 7810 1 Apr 01 20:37 LAG1 16 0 52 -22 +- 50 -23 +- 26 4 7810 1 Apr 01 23:59 LAG1 16 0 43 7 +- 54 -26 +- 35 5 7810 2 Apr 01 03:26 LAG1 20 0 52 -30 +- 46 -19 +- 25 4 7810 2 Apr 01 17:45 LAG2 15 0 35 -28 +- 54 19 +- 33 5 7810 2 Apr 01 19:23 LAG1 13 0 42 -32 +- 66 -9 +- 39 4 7810 2 Apr 01 22:49 LAG1 9 0 14 2 +- 70 -9 +- 44 2 7810 3 Apr 01 02:07 LAG1 21 0 8 -5 +- 44 -1 +- 22 6 7810 3 Apr 01 19:55 LAG2 10 0 40 -40 +- 70 3 +- 63 8 7810 3 Apr 01 21:39 LAG1 5 0 18 -20 +- 127 8 +- 200 6 7810 5 Apr 01 12:15 LAG2 8 0 8 -31 +- 259 18 +- 154 1 7810 5 Apr 01 15:09 LAG1 9 0 56 54 +- 67 7 +- 42 4 7810 7 Apr 01 19:29 LAG1 18 0 75 -46 +- 47 -36 +- 27 2 7810 7 Apr 01 20:29 LAG2 6 0 16 -23 +- 208 41 +- 247 1 Station 7811 (Borowiec) (Position fixed, acc. 60 mm) 7811 29 Mar 01 01:59 LAG1 15 0 13 -9 +- 52 -1 +- 35 8 7811 31 Mar 01 18:27 LAG1 15 0 55 -36 +- 52 -30 +- 35 5 7811 2 Apr 01 19:19 LAG1 8 0 37 -43 +- 92 -11 +- 89 7 7811 5 Apr 01 18:43 LAG1 14 0 59 -59 +- 53 2 +- 39 3 7811 5 Apr 01 22:07 LAG1 17 0 24 -22 +- 48 -2 +- 31 6 7811 6 Apr 01 01:38 LAG1 12 0 20 -11 +- 59 10 +- 47 5 Station 7820 (Kunming) (Position solved, acc. 80 mm) 7820 6 Apr 01 15:00 LAG2 9 0 28 -20 +- 122 54 +- 170 3 7820 7 Apr 01 12:57 LAG2 5 0 32 159 +- 620 92 +- 404 3 7820 7 Apr 01 22:23 LAG1 6 0 25 -35 +- 230 -12 +- 221 7 Station 7824 (San Fernando) (Position fixed, acc. 40 mm) 7824 29 Mar 01 02:05 LAG1 8 0 69 64 +- 53 15 +- 59 15 7824 30 Mar 01 00:42 LAG1 3 0 79 -13 +- 563 -70 +- 426 9 7824 30 Mar 01 19:21 LAG2 10 0 75 73 +- 47 -3 +- 26 17 7824 30 Mar 01 20:13 LAG1 6 0 105 94 +- 78 10 +- 53 12 7824 30 Mar 01 23:39 LAG1 8 0 64 20 +- 132 31 +- 103 22 7824 31 Mar 01 02:51 LAG1 5 0 58 59 +- 121 0 +- 150 6 7824 31 Mar 01 21:39 LAG2 10 0 79 97 +- 71 -24 +- 52 24 7824 1 Apr 01 01:31 LAG1 8 0 73 64 +- 53 -14 +- 63 30 7824 3 Apr 01 02:19 LAG1 8 0 112 100 +- 54 20 +- 58 36 7824 3 Apr 01 21:55 LAG1 2 0 83 134 +-1908 -43 +-1598 0 7824 6 Apr 01 21:21 LAG1 5 0 57 71 +- 282 -10 +- 190 6 7824 7 Apr 01 20:41 LAG2 5 0 204 188 +- 499 9 +- 290 2 Station 7832 (Riyad) (Position solved, acc. 20 mm) 7832 31 Mar 01 09:15 LAG2 19 0 14 -9 +- 26 -9 +- 22 8 7832 31 Mar 01 13:45 LAG2 18 0 8 4 +- 25 0 +- 23 7 7832 31 Mar 01 14:55 LAG1 15 0 12 4 +- 27 1 +- 13 10 7832 1 Apr 01 07:35 LAG2 12 0 24 -10 +- 36 15 +- 23 10 7832 1 Apr 01 11:38 LAG2 17 0 14 -2 +- 27 -6 +- 30 13 7832 1 Apr 01 13:35 LAG1 21 0 20 -17 +- 23 -1 +- 12 10 7832 2 Apr 01 09:31 LAG2 21 0 15 -11 +- 24 5 +- 20 5 7832 2 Apr 01 12:13 LAG1 15 1 20 16 +- 30 0 +- 21 12 7832 2 Apr 01 14:07 LAG2 16 0 26 -28 +- 30 15 +- 26 9 7832 2 Apr 01 15:55 LAG1 13 2 17 -9 +- 33 8 +- 32 12 7832 3 Apr 01 07:30 LAG2 12 1 10 -8 +- 33 -2 +- 38 6 7832 3 Apr 01 12:03 LAG2 12 0 23 -16 +- 36 15 +- 44 18 7832 3 Apr 01 14:29 LAG1 18 0 27 -11 +- 26 14 +- 15 11 7832 3 Apr 01 16:17 LAG2 13 0 18 -16 +- 30 -2 +- 27 4 7832 4 Apr 01 09:49 LAG2 21 0 29 22 +- 23 -10 +- 21 11 7832 4 Apr 01 13:03 LAG1 19 0 27 23 +- 24 -9 +- 15 3 7832 4 Apr 01 14:09 LAG2 14 0 22 16 +- 30 9 +- 18 12 7832 7 Apr 01 08:11 LAG2 15 0 49 47 +- 27 -10 +- 28 8 Station 7835 (Grasse) (Position fixed, acc. 30 mm) 7835 29 Mar 01 21:35 LAG2 2 0 56 -44 +-1071 -13 +-1268 0 7835 30 Mar 01 00:41 LAG1 5 0 52 -48 +- 146 4 +- 144 1 7835 30 Mar 01 11:04 LAG2 13 0 9 -3 +- 36 -2 +- 18 7 7835 30 Mar 01 19:29 LAG2 7 0 20 -23 +- 59 -6 +- 84 1 7835 31 Mar 01 15:19 LAG1 8 0 24 -40 +- 154 11 +- 102 2 7835 31 Mar 01 17:35 LAG2 19 0 13 -14 +- 35 1 +- 21 3 7835 31 Mar 01 18:39 LAG1 16 0 33 -15 +- 46 -7 +- 19 15 7835 31 Mar 01 21:31 LAG2 16 0 39 -34 +- 35 -8 +- 36 3 7835 31 Mar 01 22:05 LAG1 9 0 18 -15 +- 42 -15 +- 53 1 7835 1 Apr 01 01:31 LAG1 10 0 36 -18 +- 43 -22 +- 40 1 7835 1 Apr 01 19:39 LAG2 6 0 22 -27 +- 138 -4 +- 131 1 7835 1 Apr 01 20:33 LAG1 15 0 21 -15 +- 33 -9 +- 17 7 7835 2 Apr 01 00:03 LAG1 12 0 18 -7 +- 40 -16 +- 34 3 7835 2 Apr 01 09:47 LAG2 1 0 21 0 +- 0 0 +- 0 0 7835 2 Apr 01 13:50 LAG2 13 0 7 -13 +- 72 7 +- 42 3 7835 4 Apr 01 23:33 LAG1 7 0 14 15 +- 89 2 +- 84 2 7835 5 Apr 01 12:11 LAG2 5 0 6 -10 +- 166 5 +- 166 3 7835 5 Apr 01 15:29 LAG1 7 0 79 76 +- 96 3 +- 93 1 7835 5 Apr 01 16:19 LAG2 11 0 30 -33 +- 92 2 +- 55 2 7835 5 Apr 01 18:45 LAG1 13 0 66 -44 +- 39 21 +- 25 6 7835 5 Apr 01 20:13 LAG2 5 0 14 12 +- 57 16 +- 161 2 7835 5 Apr 01 22:23 LAG1 9 0 22 -30 +- 57 22 +- 56 1 7835 6 Apr 01 18:03 LAG1 1 0 33 0 +- 0 0 +- 0 0 7835 6 Apr 01 18:39 LAG2 2 0 89 49 +-5148 20 +-2647 0 7835 6 Apr 01 20:57 LAG1 6 0 41 -40 +- 51 4 +- 55 1 7835 7 Apr 01 16:01 LAG1 9 0 81 38 +- 42 -32 +- 20 4 7835 7 Apr 01 16:13 LAG2 22 0 17 -3 +- 30 6 +- 15 13 7835 7 Apr 01 19:23 LAG1 17 0 34 -35 +- 44 -27 +- 23 2 7835 7 Apr 01 20:13 LAG2 20 0 79 33 +- 32 39 +- 22 8 7835 7 Apr 01 22:59 LAG1 18 0 36 13 +- 34 -23 +- 19 2 Station 7836 (Potsdam) (Position fixed, acc. 30 mm) 7836 2 Apr 01 00:09 LAG1 9 0 17 4 +- 42 -16 +- 44 3 7836 2 Apr 01 19:21 LAG1 13 0 14 -13 +- 36 2 +- 26 4 7836 2 Apr 01 22:43 LAG1 11 0 14 17 +- 47 5 +- 37 3 7836 3 Apr 01 02:20 LAG1 8 0 11 1 +- 49 5 +- 46 8 7836 4 Apr 01 01:07 LAG1 9 0 46 9 +- 106 20 +- 59 11 7836 5 Apr 01 22:09 LAG1 5 0 30 -8 +- 62 18 +- 35 6 Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm) 7837 29 Mar 01 10:35 LAG1 8 0 11 -21 +- 128 12 +- 80 5 7837 29 Mar 01 17:17 LAG1 6 0 39 5 +- 163 33 +- 157 4 7837 29 Mar 01 20:31 LAG1 11 0 58 -36 +- 59 36 +- 33 10 7837 30 Mar 01 12:07 LAG2 3 0 23 -50 +- 797 -16 +- 483 4 7837 30 Mar 01 12:39 LAG1 8 0 97 95 +- 88 1 +- 96 4 7837 31 Mar 01 11:13 LAG1 15 0 25 -5 +- 50 -13 +- 33 11 7837 1 Apr 01 12:19 LAG2 5 0 21 -88 +- 435 -48 +- 285 3 7837 3 Apr 01 20:59 LAG1 4 0 21 -44 +- 235 55 +- 242 3 7837 4 Apr 01 10:35 LAG2 10 0 38 -73 +- 127 -28 +- 81 5 7837 4 Apr 01 12:41 LAG1 7 0 21 -27 +- 97 -27 +- 88 4 7837 4 Apr 01 15:59 LAG1 7 0 17 13 +- 118 -4 +- 137 4 7837 4 Apr 01 19:19 LAG1 18 0 5826 -43 +- 41 3449 +- 24 13 7837 5 Apr 01 11:23 LAG1 9 0 53 -63 +- 80 -16 +- 74 5 7837 5 Apr 01 12:45 LAG2 15 0 48 -48 +- 45 -8 +- 43 7 Station 7839 (Graz) (Position fixed, acc. 10 mm) 7839 1 Apr 01 19:24 LAG2 18 0 14 -14 +- 23 0 +- 17 3 7839 3 Apr 01 11:30 LAG2 19 0 22 21 +- 22 1 +- 12 3 7839 3 Apr 01 21:19 LAG1 10 0 31 11 +- 31 13 +- 16 2 7839 4 Apr 01 14:01 LAG2 15 0 52 27 +- 32 17 +- 19 2 7839 4 Apr 01 19:56 LAG1 15 0 12 -8 +- 25 -3 +- 14 3 7839 6 Apr 01 09:55 LAG2 14 0 35 7 +- 31 24 +- 19 1 Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm) 7840 29 Mar 01 09:26 LAG2 5 0 52 87 +- 131 -47 +- 157 2 7840 30 Mar 01 15:09 LAG2 17 0 27 7 +- 26 15 +- 15 3 7840 30 Mar 01 16:19 LAG1 17 0 30 -27 +- 26 -9 +- 19 3 7840 30 Mar 01 19:21 LAG2 16 0 37 -35 +- 28 -4 +- 22 3 7840 30 Mar 01 19:51 LAG1 14 0 13 1 +- 29 -6 +- 15 2 7840 30 Mar 01 23:23 LAG1 5 0 17 -8 +- 163 -18 +- 117 1 7840 1 Apr 01 17:06 LAG1 13 0 24 -1 +- 30 -14 +- 17 3 7840 1 Apr 01 20:40 LAG1 5 0 26 -8 +- 244 -18 +- 132 2 7840 2 Apr 01 09:57 LAG2 4 0 28 19 +- 329 7 +- 247 2 7840 2 Apr 01 13:32 LAG2 16 0 18 -5 +- 27 12 +- 18 3 7840 3 Apr 01 05:54 LAG1 9 0 13 -6 +- 36 12 +- 34 1 7840 4 Apr 01 17:47 LAG2 21 0 17 -9 +- 23 9 +- 14 3 7840 4 Apr 01 20:09 LAG1 17 0 18 -18 +- 27 2 +- 16 3 7840 4 Apr 01 23:31 LAG1 12 0 24 23 +- 31 3 +- 17 3 7840 5 Apr 01 02:57 LAG1 9 0 20 -2 +- 115 8 +- 56 2 7840 6 Apr 01 20:53 LAG1 13 0 24 -21 +- 30 5 +- 19 3 7840 7 Apr 01 00:23 LAG1 14 0 33 35 +- 31 -3 +- 19 4 Station 7845 (Grasse) (Position fixed, acc. 20 mm) 7845 30 Mar 01 11:03 LAG2 14 0 9 -6 +- 31 -2 +- 15 6 7845 30 Mar 01 15:31 LAG2 10 0 35 -51 +- 50 30 +- 38 6 7845 31 Mar 01 13:11 LAG2 29 0 36 -35 +- 20 0 +- 11 10 7845 31 Mar 01 14:59 LAG1 21 0 49 -52 +- 25 23 +- 18 7 7845 2 Apr 01 00:01 LAG1 20 0 49 -36 +- 25 -13 +- 14 6 7845 2 Apr 01 13:47 LAG2 20 0 29 -46 +- 42 17 +- 23 12 7845 2 Apr 01 15:49 LAG1 23 0 29 -10 +- 25 17 +- 14 6 7845 3 Apr 01 02:17 LAG1 2 0 48 -73 +- 916 -21 +- 774 0 7845 3 Apr 01 05:47 LAG1 16 0 26 -26 +- 27 3 +- 27 4 7845 4 Apr 01 23:35 LAG1 9 0 20 -20 +- 36 0 +- 38 3 7845 5 Apr 01 07:49 LAG2 12 0 39 -36 +- 31 -5 +- 18 10 7845 5 Apr 01 11:47 LAG2 10 0 26 -52 +- 96 -18 +- 58 3 7845 5 Apr 01 16:13 LAG2 11 0 38 -48 +- 52 7 +- 26 7 7845 5 Apr 01 22:11 LAG1 18 0 51 -45 +- 25 20 +- 17 5 7845 6 Apr 01 01:25 LAG1 28 0 44 -4 +- 20 18 +- 9 13 7845 6 Apr 01 14:21 LAG2 6 0 18 -34 +- 88 24 +- 83 4 Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm) 7849 29 Mar 01 07:27 LAG1 8 0 10 -7 +- 35 -6 +- 46 1 7849 29 Mar 01 10:45 LAG2 7 0 90 69 +- 36 -34 +- 25 4 7849 29 Mar 01 14:47 LAG2 19 0 16 -3 +- 22 13 +- 18 4 7849 29 Mar 01 19:13 LAG2 3 0 4 9 +- 233 19 +- 385 2 7849 30 Mar 01 17:07 LAG2 14 0 24 10 +- 25 26 +- 32 3 7849 1 Apr 01 12:56 LAG2 3 0 11 10 +-1693 9 +- 722 3 7849 3 Apr 01 07:42 LAG1 7 0 16 -19 +- 46 7 +- 57 4 7849 3 Apr 01 09:33 LAG2 6 0 7 4 +- 45 -6 +- 86 6 7849 4 Apr 01 11:28 LAG2 5 0 34 -16 +- 59 18 +- 28 18 7849 4 Apr 01 22:15 LAG1 4 0 19 -24 +- 85 -10 +- 143 3 7849 5 Apr 01 04:45 LAG1 15 0 21 18 +- 25 9 +- 16 2 7849 5 Apr 01 13:27 LAG2 8 0 12 3 +- 55 8 +- 33 4 7849 6 Apr 01 03:39 LAG1 9 0 29 28 +- 49 1 +- 41 2 7849 6 Apr 01 11:47 LAG2 4 0 32 -24 +- 100 14 +- 160 1 7849 6 Apr 01 20:15 LAG2 2 0 11 -29 +- 705 -147 +-2581 0 -------------------------------------------------------------------------------- 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 - 010404 0/ 12/ 0 0/ 6/ 0 18 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 - 010409 41/ 87/ 8 43/ 82/ 11 272 7090 ML0514 001101 - 010407 98/114/ 19 102/122/ 9 464 7105 ML0725 001101 - 010409 35/193/ 13 37/149/ 12 439 7110 ML0414 001101 - 010405 26/175/ 13 17/130/ 8 369 7124 ML0819 001107 - 010208 0/ 25/ 0 0/ 16/ 2 43 7210 HOLLAS 001115 - 010406 3/ 42/ 1 0/ 38/ 1 85 7231 WUHA01 001103 - 001205 0/ 8/ 0 0/ 9/ 0 17 7237 CHALAS 001102 - 010406 0/111/ 0 0/ 84/ 0 195 7249 BEJLAS 001101 - 010402 0/ 41/ 0 0/ 31/ 0 72 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 - 010409 0/ 16/ 1 1/ 13/ 1 32 7501 ML0616 001101 - 010406 32/ 34/ 7 24/ 24/ 1 122 7806 METLAS 010209 - 010403 0/ 36/ 0 0/ 8/ 0 44 7810 ZIMLAT 001102 - 010407 16/ 35/ 1 12/ 18/ 4 86 7811 POLLAS 001103 - 010406 0/ 86/ 0 0/ 45/ 0 131 7820 YSLR01 001101 - 010408 0/133/ 2 0/164/ 0 299 7824 SPNLAS 001101 - 010408 2/ 83/ 2 2/ 83/ 2 174 7831 HELLAS 001101 - 001104 0/ 3/ 0 0/ 1/ 0 4 7832 SALRO 001211 - 010409 13/ 16/ 4 44/ 11/ 3 91 7835 GRASSE 001101 - 010409 12/101/ 3 16/ 78/ 3 213 7836 GFZLAS 001101 - 010405 5/ 88/ 5 3/ 58/ 2 161 7837 CHILAS 001102 - 010405 0/ 67/ 0 0/ 56/ 1 124 7838 SHOLAS 001107 - 010318 2/ 92/ 0 7/ 91/ 2 194 7839 AUSLAS 001102 - 010406 19/ 85/ 4 24/ 63/ 4 199 7840 RGOLAS 001102 - 010409 35/137/ 7 26/104/ 8 317 7845 GRASLL 001103 - 010409 16/ 36/ 1 30/ 26/ 1 110 7849 MSLO01 001101 - 010409 156/ 49/ 20 138/ 53/ 12 428 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) -------------------------------------------------------------- 010331.0 89.1 +/- 0.1 491.4 +/- 0.1 -31972.32 +/- 0.01 010403.0 95.5 +/- 0.1 489.9 +/- 0.1 -31974.33 +/- 0.01 010406.0 102.6 +/- 0.1 487.2 +/- 0.1 -31977.43 +/- 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. From: Ron Noomen ******************************************************************************** |