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SLR-Report No.1653

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Date:2002-03-26 06:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 1653: Delft QL Report, March 26, 2002
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2002-03-26 06:45:00 UTC Message No. 1653
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report, March 26, 2002


WEGENER-2 IERS

REPORT OF THE QUICK-LOOK DATA ANALYSIS CENTER
DELFT UNIVERSITY OF TECHNOLOGY
FACULTY OF AEROSPACE ENGINEERING
THE NETHERLANDS


March 26, 2002


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, Mar 25, 2002.
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,
Mar 25, 2002. All data were obtained through the NASA Crustal Dynamics Data
Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany.
The data are unscreened and may span more than a week due to late reporting
by the stations.

------------------------------------------------------------------------------
Station System/Location Period No. of Passes
ID LAGEOS-1 LAGEOS-2
------------------------------------------------------------------------------
1864 Maidanak, Uzbekistan (site 2) 020324 - 020324 - 1
1868 Komsomolsk-na-Amure, Russia 020323 - 020323 1 -
1884 Riga, Latvia 020324 - 020325 1 2
1893 Kazivili, Crimea, Ukraine 020305 - 020319 - 3
7080 McDonald Obs., Fort Davis, TX 020319 - 020319 - 1
7090 Yarragadee, Australia 020318 - 020320 8 7
7110 Monument Peak, California 020319 - 020320 2 5
7124 Papeete, Tahiti 020320 - 020320 1 1
7210 Haleakala Obs., Maui, Hawaii 020320 - 020320 - 2
7237 Changchun, China 020319 - 020319 - 1
7249 Beijing, China 020318 - 020318 1 2
7501 Hartebeesthoek, SA (MOB-6) 020318 - 020320 6 6
7548 Cagliari, Italy 020320 - 020322 - 3
7810 Zimmerwald, Switzerland 020323 - 020325 7 6
7811 Borowiec, Poland 020318 - 020320 1 1
7820 Kunming, China 020318 - 020324 5 6
7824 San Fernando, Spain 020318 - 020324 4 10
7832 Riyad, Saudi Arabia 020318 - 020325 7 3
7835 Grasse, France 020318 - 020324 4 7
7836 Potsdam, Germany 020319 - 020319 1 -
7837 Shanghai Observatory, China 020318 - 020319 - 2
7838 Simosato Observatory, Japan 020320 - 020320 - 1
7839 Graz, Austria 020318 - 020325 9 3
7840 Herstmonceux, United Kingdom 020321 - 020325 7 4
7845 Grasse, France (LLR) 020323 - 020324 - 2
7848 Ajaccio, Corsica (FTLRS) 020320 - 020323 1 3
7849 Mount Stromlo, Australia 020318 - 020325 15 16
7941 Matera, Italy (MLRO) 020313 - 020321 4 2
8834 Wettzell, Germany 020318 - 020318 - 1
------ ------ --- ---
TOTAL 020305 - 020325 85 101
------------------------------------------------------------------------------


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 14, 2002 to Sun, Mar 24, 2002. 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 26 30
Number of Passes 117/111 166/159
Number of Normal Points 1089/1041 1814/1769
RMS of Fit (mm) 30 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 17 Mar 02 00:53 LAG2 4 0 61 -69 +-3732 -5 +-2103 9
1824 17 Mar 02 19:07 LAG2 4 0 31 -8 +- 304 75 +- 805 12
1824 17 Mar 02 23:22 LAG2 7 0 108 300 +-1066 -225 +- 666 55
1824 18 Mar 02 00:13 LAG1 8 0 55 32 +- 461 -17 +- 338 8

Station 1868 (Komsomolsk-na-Amure) (Position fixed, acc. 200 mm)
1868 23 Mar 02 19:29 LAG1 6 0 90 98 +-1141 -5 +- 604 20

Station 1873 (Simeiz) (Position solved, acc. 200 mm)
1873 14 Mar 02 02:15 LAG1 3 0 40 76 +-1323 26 +- 886 2
1873 14 Mar 02 02:49 LAG2 4 0 113 185 +- 852 175 +-1264 74
1873 15 Mar 02 00:45 LAG2 4 0 109 -102 +-2508 -144 +-1730 3
1873 15 Mar 02 01:11 LAG1 1 0 222 0 +- 0 0 +- 0 0
1873 16 Mar 02 20:59 LAG2 4 0 61 9 +- 427 23 +- 349 49
1873 16 Mar 02 22:11 LAG1 4 0 54 56 +- 493 83 +-1286 39
1873 17 Mar 02 01:23 LAG2 4 0 66 428 +-2083 -318 +-1542 22
1873 17 Mar 02 01:37 LAG1 4 0 253 -905 +-2509 -330 +-1233 25

Station 1884 (Riga) (Position fixed, acc. 100 mm)
1884 14 Mar 02 20:31 LAG2 21 0 32 25 +- 68 13 +- 49 7
1884 15 Mar 02 00:45 LAG1 13 0 58 57 +- 86 5 +- 73 10
1884 15 Mar 02 18:45 LAG2 11 0 50 46 +- 94 18 +- 79 5
1884 15 Mar 02 22:39 LAG2 20 0 60 22 +- 69 41 +- 51 6
1884 16 Mar 02 02:47 LAG2 14 0 36 -17 +- 84 29 +- 85 6
1884 16 Mar 02 20:46 LAG2 20 0 30 8 +- 70 20 +- 52 8
1884 17 Mar 02 00:54 LAG2 16 0 46 -1 +- 80 40 +- 70 4
1884 17 Mar 02 01:33 LAG1 16 0 22 12 +- 78 -9 +- 53 11

Station 1893 (Kazivili) (Position fixed, acc. 100 mm)
1893 19 Mar 02 19:09 LAG2 14 0 60 -28 +- 186 -49 +- 176 53

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 14 Mar 02 01:37 LAG2 13 0 22 20 +- 31 -5 +- 38 5
7080 14 Mar 02 05:41 LAG2 7 0 34 11 +- 42 18 +- 27 1
7080 14 Mar 02 14:07 LAG2 11 0 24 26 +- 35 9 +- 37 5
7080 15 Mar 02 03:36 LAG2 19 0 20 8 +- 25 -11 +- 18 4
7080 19 Mar 02 13:04 LAG2 6 0 1 -4 +- 265 1 +- 145 1

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 14 Mar 02 08:25 LAG2 4 0 27 -27 +- 48 13 +- 112 0
7090 14 Mar 02 12:22 LAG2 1 0 7 0 +- 0 0 +- 0 0
7090 15 Mar 02 07:05 LAG1 5 0 25 -24 +- 310 20 +- 129 5
7090 15 Mar 02 10:41 LAG2 12 0 14 15 +- 72 0 +- 40 2
7090 15 Mar 02 13:37 LAG1 3 0 26 -30 +- 164 12 +- 458 2
7090 16 Mar 02 08:27 LAG2 13 0 24 -27 +- 30 -6 +- 28 1
7090 16 Mar 02 08:53 LAG1 13 0 12 -12 +- 27 0 +- 23 3
7090 16 Mar 02 12:13 LAG1 6 0 46 -42 +- 53 10 +- 108 1
7090 16 Mar 02 12:44 LAG2 1 0 33 0 +- 0 0 +- 0 0
7090 16 Mar 02 15:21 LAG1 6 0 15 -18 +- 196 -2 +- 109 1
7090 17 Mar 02 06:25 LAG2 15 0 39 -24 +- 24 -21 +- 19 3
7090 17 Mar 02 07:29 LAG1 5 0 35 -32 +- 70 2 +- 45 3
7090 17 Mar 02 10:27 LAG2 15 0 27 8 +- 24 -14 +- 12 2
7090 17 Mar 02 10:55 LAG1 8 0 27 -13 +- 43 24 +- 62 3
7090 17 Mar 02 14:09 LAG1 8 0 26 -28 +- 39 17 +- 27 1
7090 18 Mar 02 04:53 LAG2 5 0 33 -28 +- 376 -3 +- 243 2
7090 18 Mar 02 06:26 LAG1 4 0 14 -4 +- 258 -4 +- 166 9
7090 18 Mar 02 08:35 LAG2 25 0 20 -16 +- 19 7 +- 11 4
7090 18 Mar 02 09:37 LAG1 14 0 10 -10 +- 26 -1 +- 23 2
7090 18 Mar 02 12:43 LAG2 4 0 26 54 +- 285 26 +- 270 1
7090 18 Mar 02 12:59 LAG1 5 0 22 -20 +- 46 13 +- 131 0
7090 18 Mar 02 16:03 LAG1 23 0 13 -10 +- 20 4 +- 10 2
7090 19 Mar 02 02:43 LAG2 6 0 19 7 +- 80 -19 +- 59 3
7090 19 Mar 02 06:41 LAG2 17 0 27 -25 +- 23 5 +- 22 2
7090 19 Mar 02 08:12 LAG1 14 0 13 -7 +- 25 -8 +- 18 3
7090 19 Mar 02 10:41 LAG2 27 0 28 26 +- 18 3 +- 10 8
7090 19 Mar 02 11:45 LAG1 7 0 15 -13 +- 43 -5 +- 67 2
7090 19 Mar 02 14:52 LAG1 10 0 14 -13 +- 37 0 +- 22 1
7090 19 Mar 02 18:13 LAG1 19 0 9 9 +- 23 0 +- 12 4
7090 20 Mar 02 00:59 LAG2 5 0 50 -3 +- 527 -21 +- 243 2
7090 20 Mar 02 04:49 LAG2 12 0 27 -22 +- 30 -9 +- 39 5
7090 20 Mar 02 06:55 LAG1 17 0 10 -9 +- 23 3 +- 14 4
7090 20 Mar 02 08:47 LAG2 26 0 29 -15 +- 18 14 +- 10 3
7090 20 Mar 02 10:23 LAG1 9 0 7 -6 +- 32 2 +- 41 1

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 14 Mar 02 16:45 LAG1 8 0 22 -21 +- 82 -1 +- 51 2
7105 16 Mar 02 01:57 LAG2 18 0 18 -9 +- 23 11 +- 15 5
7105 17 Mar 02 04:23 LAG2 16 0 9 -13 +- 37 7 +- 27 2
7105 17 Mar 02 05:33 LAG1 10 0 15 31 +- 65 20 +- 53 2

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 14 Mar 02 13:43 LAG1 8 0 12 -33 +- 97 21 +- 65 2
7110 15 Mar 02 07:43 LAG2 13 0 26 -8 +- 26 -16 +- 19 1
7110 15 Mar 02 08:33 LAG1 23 0 31 -16 +- 20 22 +- 15 4
7110 15 Mar 02 11:55 LAG2 12 0 45 -21 +- 27 -18 +- 14 5
7110 19 Mar 02 03:59 LAG2 16 0 24 -17 +- 24 -10 +- 13 2
7110 19 Mar 02 08:17 LAG2 2 0 8 -28 +-2772 -25 +-1952 0
7110 19 Mar 02 12:25 LAG2 19 0 37 -28 +- 22 -12 +- 11 10
7110 19 Mar 02 20:29 LAG1 12 0 47 -57 +- 36 12 +- 22 3
7110 20 Mar 02 02:19 LAG2 14 0 35 -32 +- 27 -8 +- 28 2
7110 20 Mar 02 06:17 LAG2 10 0 19 -3 +- 34 -10 +- 20 1
7110 20 Mar 02 08:53 LAG1 13 0 21 -17 +- 26 13 +- 24 2

Station 7124 (Papeete) (Position fixed, acc. 10 mm)
7124 20 Mar 02 05:47 LAG2 5 0 53 -54 +- 65 1 +- 144 0
7124 20 Mar 02 09:33 LAG1 2 0 1 1 +- 725 0 +- 634 0

Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm)
7210 15 Mar 02 11:39 LAG2 8 0 43 37 +- 38 -25 +- 38 8
7210 15 Mar 02 12:19 LAG1 5 0 8 54 +- 463 21 +- 203 2
7210 16 Mar 02 05:21 LAG2 17 0 10 10 +- 28 -1 +- 16 1
7210 16 Mar 02 09:26 LAG2 10 0 24 22 +- 35 0 +- 29 8
7210 16 Mar 02 11:18 LAG1 9 0 7 3 +- 87 -5 +- 53 3
7210 20 Mar 02 05:44 LAG2 17 0 40 43 +- 31 5 +- 21 5
7210 20 Mar 02 10:11 LAG2 5 0 34 33 +- 54 -3 +- 101 2

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 14 Mar 02 13:07 LAG2 3 0 8 -5 +- 756 2 +- 724 2
7237 14 Mar 02 17:12 LAG2 3 0 59 327 +- 770 304 +- 651 21
7237 14 Mar 02 17:37 LAG1 9 0 17 -12 +- 102 18 +- 81 8
7237 15 Mar 02 11:21 LAG2 8 0 96 -81 +- 86 -15 +- 71 4
7237 15 Mar 02 19:27 LAG2 6 0 27 -13 +- 73 -13 +- 47 3
7237 15 Mar 02 19:35 LAG1 4 0 51 12 +- 594 34 +- 321 3
7237 17 Mar 02 11:27 LAG2 8 0 54 -60 +- 68 -38 +- 94 5
7237 17 Mar 02 15:38 LAG2 4 0 16 0 +- 92 -45 +- 313 10
7237 17 Mar 02 19:41 LAG2 2 0 4 -27 +-2029 -26 +-1646 0
7237 19 Mar 02 11:51 LAG2 3 0 55 -41 +- 217 -41 +- 597 0

Station 7249 (Beijing) (Position solved, acc. 50 mm)
7249 18 Mar 02 13:26 LAG2 7 3 49 7 +- 131 57 +- 231 41
7249 18 Mar 02 17:33 LAG2 11 2 227 -39 +- 65 -94 +- 53 181
7249 18 Mar 02 19:19 LAG1 5 0 45 80 +- 140 -82 +- 167 8

Station 7501 (Hartebeesthoek) (Position fixed, acc. 10 mm)
7501 14 Mar 02 07:43 LAG2 10 0 20 -46 +- 132 13 +- 66 2
7501 14 Mar 02 11:57 LAG2 6 0 32 -8 +- 119 34 +- 102 2
7501 15 Mar 02 09:45 LAG2 7 0 7 5 +- 52 -7 +- 37 1
7501 15 Mar 02 17:53 LAG2 18 0 13 -12 +- 23 3 +- 17 3
7501 16 Mar 02 15:59 LAG2 26 0 8 2 +- 19 4 +- 10 2
7501 16 Mar 02 19:33 LAG1 6 0 4 -3 +- 40 9 +- 101 1
7501 17 Mar 02 14:16 LAG2 15 0 8 10 +- 32 -6 +- 25 1
7501 17 Mar 02 14:57 LAG1 10 0 18 2 +- 30 22 +- 36 1
7501 17 Mar 02 18:15 LAG2 11 0 11 3 +- 30 -10 +- 26 1
7501 17 Mar 02 21:25 LAG1 13 0 28 -1 +- 26 19 +- 18 2
7501 18 Mar 02 00:57 LAG1 12 0 9 8 +- 28 3 +- 26 2
7501 18 Mar 02 03:49 LAG2 6 0 42 38 +- 150 -4 +- 152 1
7501 18 Mar 02 12:05 LAG2 20 0 19 17 +- 21 4 +- 20 5
7501 18 Mar 02 13:29 LAG1 16 0 14 13 +- 25 6 +- 16 2
7501 18 Mar 02 16:13 LAG2 24 0 18 11 +- 19 7 +- 11 1
7501 18 Mar 02 23:35 LAG1 4 0 3 -2 +- 78 -1 +- 51 3
7501 19 Mar 02 10:19 LAG2 8 0 9 4 +- 64 6 +- 83 0
7501 19 Mar 02 12:09 LAG1 8 0 10 -5 +- 33 0 +- 15 9
7501 19 Mar 02 14:15 LAG2 20 0 138 -28 +- 22 -27 +- 14 130
7501 19 Mar 02 15:39 LAG1 14 0 13 13 +- 25 0 +- 25 1
7501 19 Mar 02 18:23 LAG2 18 0 14 14 +- 22 -4 +- 23 1
7501 19 Mar 02 22:03 LAG1 24 0 14 -4 +- 19 6 +- 10 3
7501 20 Mar 02 01:47 LAG1 10 0 11 10 +- 32 -2 +- 49 2
7501 20 Mar 02 04:07 LAG2 14 0 24 26 +- 28 -8 +- 26 2

Station 7548 (Cagliari) (Position solved, acc. 70 mm)
7548 15 Mar 02 22:51 LAG2 5 0 23 50 +- 336 -39 +- 359 13
7548 20 Mar 02 21:07 LAG2 9 4 64 -45 +- 142 17 +- 209 34
7548 21 Mar 02 19:12 LAG2 7 0 12 -17 +- 157 -24 +- 178 4
7548 22 Mar 02 21:19 LAG2 5 0 44 40 +- 161 -2 +- 154 11

Station 7806 (Metsahovi) (Position fixed, acc. 30 mm)
7806 15 Mar 02 18:53 LAG2 10 0 40 -39 +- 39 4 +- 62 6
7806 15 Mar 02 22:49 LAG2 15 0 24 -24 +- 35 16 +- 31 4
7806 15 Mar 02 23:33 LAG1 5 0 10 -14 +- 118 19 +- 157 7
7806 16 Mar 02 02:42 LAG2 14 0 42 -41 +- 36 0 +- 35 11
7806 16 Mar 02 20:53 LAG2 16 0 30 -30 +- 32 0 +- 29 5
7806 17 Mar 02 00:47 LAG2 20 0 26 -24 +- 28 3 +- 21 7
7806 17 Mar 02 01:35 LAG1 15 0 21 -19 +- 33 5 +- 23 10

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 14 Mar 02 02:15 LAG1 4 0 31 -4 +- 100 -13 +- 44 2
7810 14 Mar 02 02:19 LAG2 5 0 40 0 +- 93 25 +- 59 4
7810 14 Mar 02 20:23 LAG2 21 0 24 -21 +- 44 -5 +- 29 3
7810 15 Mar 02 00:19 LAG2 17 0 41 -10 +- 52 21 +- 31 3
7810 15 Mar 02 00:47 LAG1 8 0 27 14 +- 77 8 +- 47 11
7810 15 Mar 02 04:21 LAG1 16 0 14 -12 +- 50 -1 +- 23 6
7810 15 Mar 02 04:27 LAG2 17 0 18 -15 +- 48 4 +- 30 8
7810 15 Mar 02 23:28 LAG1 9 0 28 27 +- 67 3 +- 70 7
7810 16 Mar 02 02:31 LAG2 15 0 51 -2 +- 89 29 +- 54 3
7810 16 Mar 02 03:23 LAG1 11 0 57 14 +- 183 -33 +- 86 3
7810 16 Mar 02 10:18 LAG1 5 0 50 -23 +- 490 -14 +- 253 1
7810 17 Mar 02 00:39 LAG2 12 0 48 -16 +- 63 27 +- 44 4
7810 17 Mar 02 08:47 LAG1 8 0 25 -25 +- 81 1 +- 99 2
7810 17 Mar 02 12:27 LAG1 7 0 39 -69 +- 344 15 +- 166 6
7810 17 Mar 02 18:59 LAG2 11 0 10 -6 +- 83 -4 +- 76 1
7810 17 Mar 02 22:39 LAG2 23 0 35 -28 +- 42 11 +- 26 7
7810 18 Mar 02 00:25 LAG1 5 0 10 9 +- 158 27 +- 264 1
7810 18 Mar 02 02:53 LAG2 21 0 33 -17 +- 44 20 +- 29 2
7810 18 Mar 02 04:04 LAG1 10 0 41 -25 +- 99 -13 +- 69 1
7810 23 Mar 02 23:14 LAG1 6 0 22 12 +- 91 17 +- 129 9
7810 23 Mar 02 23:38 LAG2 11 0 19 -1 +- 63 24 +- 81 4

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 18 Mar 02 21:02 LAG2 7 0 29 -10 +- 87 24 +- 66 8
7811 20 Mar 02 01:05 LAG1 8 0 20 24 +- 116 20 +- 98 13

Station 7820 (Kunming) (Position solved, acc. 80 mm)
7820 14 Mar 02 13:07 LAG2 2 0 52 -47 +-3323 88 +-2941 0
7820 14 Mar 02 17:02 LAG2 3 0 34 30 +- 170 120 +- 686 16
7820 14 Mar 02 21:23 LAG1 4 0 14 12 +- 149 0 +- 381 7
7820 14 Mar 02 21:31 LAG2 7 0 32 47 +- 147 -52 +- 236 8
7820 15 Mar 02 15:07 LAG2 5 0 18 -14 +- 206 -9 +- 394 4
7820 15 Mar 02 19:27 LAG2 4 0 20 14 +- 127 37 +- 955 13
7820 15 Mar 02 19:51 LAG1 5 0 15 51 +- 524 24 +- 325 0
7820 16 Mar 02 13:05 LAG2 11 0 14 -10 +- 81 9 +- 92 10
7820 18 Mar 02 13:39 LAG2 3 0 18 -136 +-2554 67 +-1419 7
7820 18 Mar 02 19:19 LAG1 13 0 18 -11 +- 71 -1 +- 55 13
7820 19 Mar 02 15:25 LAG2 11 0 10 5 +- 79 -4 +- 115 8
7820 19 Mar 02 18:11 LAG1 6 0 46 74 +- 306 -31 +- 246 23
7820 19 Mar 02 19:51 LAG2 4 0 20 -8 +- 519 15 +- 681 2
7820 19 Mar 02 21:33 LAG1 7 0 16 -14 +- 100 7 +- 151 7
7820 20 Mar 02 13:47 LAG2 4 0 12 -49 +- 741 32 +- 559 6
7820 21 Mar 02 11:42 LAG2 4 0 39 -27 +- 132 -112 +- 481 18
7820 21 Mar 02 18:51 LAG1 9 0 12 -5 +- 97 4 +- 100 11

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 16 Mar 02 20:37 LAG2 6 0 26 22 +- 88 -7 +- 152 7
7824 17 Mar 02 01:07 LAG2 6 0 71 61 +- 538 5 +- 312 2
7824 17 Mar 02 01:47 LAG1 5 0 101 -216 +- 416 -166 +- 230 37
7824 18 Mar 02 20:49 LAG2 9 0 53 52 +- 50 -12 +- 46 1
7824 19 Mar 02 19:27 LAG2 3 0 16119 11 +-2481 -7969 +-1225 2*CHK*
7824 20 Mar 02 01:14 LAG1 6 0 15067 62 +- 61 -7951 +- 32 11*CHK*
7824 20 Mar 02 07:28 LAG2 1 0 344 0 +- 0 0 +- 0 0
7824 21 Mar 02 01:45 LAG2 3 0 603 -94 +-2924 362 +-1517 6
7824 21 Mar 02 03:35 LAG1 1 0 521 0 +- 0 0 +- 0 0
7824 21 Mar 02 19:11 LAG2 14 0 617 606 +- 47 19 +- 44 28*CHK*
7824 22 Mar 02 01:57 LAG1 7 0 147 114 +- 413 -14 +- 179 4
7824 22 Mar 02 03:21 LAG2 3 0 313 318 +-1649 2 +- 978 6
7824 22 Mar 02 21:07 LAG2 8 0 77 78 +- 177 1 +- 118 1
7824 23 Mar 02 00:53 LAG1 3 0 61 60 +- 154 -1 +- 669 1
7824 23 Mar 02 02:03 LAG2 3 0 72 -121 +-2868 94 +-1397 3
7824 23 Mar 02 19:28 LAG2 2 0 43 35 +- 372 -25 +-1114 0

Station 7832 (Riyad) (Position fixed, acc. 20 mm)
7832 16 Mar 02 09:35 LAG1 15 0 29 -28 +- 28 -3 +- 18 8
7832 16 Mar 02 16:47 LAG2 12 0 26 -28 +- 34 5 +- 35 3
7832 18 Mar 02 07:01 LAG1 10 0 17 17 +- 34 0 +- 46 4
7832 18 Mar 02 10:19 LAG1 14 0 28 -17 +- 28 -9 +- 15 11
7832 18 Mar 02 16:51 LAG2 19 0 21 -20 +- 24 0 +- 18 7
7832 19 Mar 02 05:37 LAG2 6 0 9 -7 +- 55 -9 +- 155 7
7832 19 Mar 02 09:32 LAG1 2 0 99 -139 +-2513 15 +- 984 0
7832 20 Mar 02 07:45 LAG1 11 0 14 8 +- 33 6 +- 23 4
7832 23 Mar 02 10:59 LAG1 5 1 13 -83 +- 369 46 +- 212 5
7832 23 Mar 02 15:27 LAG2 15 0 33 -31 +- 27 -13 +- 26 5

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 16 Mar 02 21:07 LAG2 5 0 55 -95 +- 682 20 +- 345 2
7835 18 Mar 02 20:47 LAG2 19 0 27 -20 +- 29 -15 +- 22 6
7835 20 Mar 02 21:15 LAG2 20 0 23 -26 +- 46 2 +- 27 6
7835 20 Mar 02 23:41 LAG1 19 0 21 -12 +- 29 13 +- 20 4
7835 21 Mar 02 01:25 LAG2 19 0 14 -20 +- 45 14 +- 29 3
7835 21 Mar 02 19:17 LAG2 12 0 18 -11 +- 37 -12 +- 39 3
7835 22 Mar 02 08:56 LAG1 11 0 7 0 +- 41 6 +- 37 2
7835 22 Mar 02 21:39 LAG2 5 0 32 -36 +- 208 3 +- 183 1
7835 23 Mar 02 00:31 LAG1 10 0 34 -10 +- 90 17 +- 61 2
7835 23 Mar 02 19:13 LAG2 12 0 36 -23 +- 38 -22 +- 25 7
7835 23 Mar 02 23:25 LAG1 11 0 19 -18 +- 77 27 +- 66 3

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 19 Mar 02 05:55 LAG1 8 0 12 0 +- 82 -6 +- 61 8

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 18 Mar 02 13:40 LAG2 4 0 4151 3890 +- 326 277 +- 335 32*CHK*
7837 19 Mar 02 15:38 LAG2 7 0 16 -18 +- 89 -12 +- 151 8

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 20 Mar 02 10:03 LAG2 5 1 9 -42 +- 357 31 +- 282 5

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 14 Mar 02 02:07 LAG1 12 0 40 29 +- 27 -10 +- 10 8
7839 14 Mar 02 02:47 LAG2 12 0 51 54 +- 59 -1 +- 33 5
7839 14 Mar 02 09:09 LAG1 19 0 7 6 +- 23 1 +- 13 1
7839 14 Mar 02 12:46 LAG1 10 0 11 -9 +- 33 10 +- 32 3
7839 14 Mar 02 20:23 LAG2 23 0 27 22 +- 20 -11 +- 13 1
7839 15 Mar 02 00:23 LAG2 12 0 19 30 +- 43 10 +- 23 4
7839 15 Mar 02 00:45 LAG1 5 0 33 54 +- 73 22 +- 45 2
7839 15 Mar 02 04:25 LAG1 10 0 28 33 +- 37 8 +- 32 3
7839 15 Mar 02 05:01 LAG2 4 0 27 27 +- 199 0 +- 196 2
7839 15 Mar 02 11:38 LAG1 3 0 27 28 +- 544 0 +- 296 0
7839 15 Mar 02 18:31 LAG2 16 0 28 25 +- 28 -4 +- 25 1
7839 18 Mar 02 04:07 LAG1 9 0 8 11 +- 83 -2 +- 46 1
7839 18 Mar 02 07:23 LAG1 6 0 26 21 +- 42 -16 +- 72 2
7839 18 Mar 02 10:49 LAG1 11 0 16 0 +- 31 -13 +- 26 3
7839 18 Mar 02 20:47 LAG2 24 0 13 12 +- 19 -1 +- 12 2
7839 18 Mar 02 22:57 LAG1 10 0 19 18 +- 30 10 +- 50 3
7839 19 Mar 02 00:52 LAG2 26 0 43 17 +- 18 24 +- 11 3
7839 19 Mar 02 02:33 LAG1 12 0 12 11 +- 27 -4 +- 23 1
7839 20 Mar 02 17:31 LAG2 4 0 67 73 +- 171 -8 +- 240 4
7839 20 Mar 02 23:41 LAG1 12 0 25 21 +- 31 4 +- 19 2
7839 21 Mar 02 06:39 LAG1 12 0 38 26 +- 31 -12 +- 23 3
7839 21 Mar 02 10:08 LAG1 17 0 31 14 +- 23 -18 +- 14 2
7839 22 Mar 02 08:53 LAG1 16 0 32 35 +- 28 -3 +- 17 2

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 17 Mar 02 12:21 LAG1 4 0 4 -1 +- 55 12 +- 163 1
7840 21 Mar 02 23:07 LAG2 14 0 13 14 +- 37 1 +- 26 3
7840 23 Mar 02 07:35 LAG1 8 0 18 31 +- 71 16 +- 56 2
7840 23 Mar 02 19:32 LAG2 15 0 8 5 +- 31 3 +- 28 1
7840 23 Mar 02 23:21 LAG2 20 0 24 16 +- 25 17 +- 18 2

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 23 Mar 02 23:37 LAG2 12 0 32 -31 +- 31 19 +- 38 3

Station 7848 (Ajaccio) (Position solved, acc. 30 mm)
7848 16 Mar 02 02:47 LAG2 4 0 7 40 +- 375 32 +- 288 3
7848 20 Mar 02 21:15 LAG2 8 0 9 7 +- 50 -2 +- 58 6
7848 23 Mar 02 07:37 LAG1 5 0 6 3 +- 67 -1 +- 111 5
7848 23 Mar 02 19:34 LAG2 11 0 12 -8 +- 56 -3 +- 48 4
7848 23 Mar 02 23:39 LAG2 9 0 17 0 +- 42 21 +- 53 2

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 14 Mar 02 00:07 LAG2 14 0 21 -1 +- 26 -16 +- 21 4
7849 14 Mar 02 04:15 LAG2 7 0 17 0 +- 36 11 +- 24 4
7849 14 Mar 02 04:25 LAG1 5 0 34 -39 +- 91 -6 +- 98 1
7849 16 Mar 02 00:27 LAG2 11 0 11 10 +- 33 -10 +- 34 1
7849 17 Mar 02 02:43 LAG2 12 0 15 22 +- 41 -14 +- 37 2
7849 17 Mar 02 03:47 LAG1 8 0 14 -19 +- 53 -8 +- 49 2
7849 18 Mar 02 22:43 LAG2 13 0 6 -2 +- 28 2 +- 21 5
7849 19 Mar 02 06:59 LAG2 6 0 25 -13 +- 121 9 +- 92 1
7849 19 Mar 02 08:21 LAG1 3 0 28 21 +- 295 -33 +- 203 2
7849 19 Mar 02 14:53 LAG1 14 0 13 11 +- 40 0 +- 21 3
7849 20 Mar 02 00:55 LAG2 15 0 4 3 +- 31 -4 +- 24 2
7849 20 Mar 02 03:07 LAG1 10 0 15 -1 +- 60 -11 +- 42 2
7849 20 Mar 02 05:11 LAG2 14 0 18 4 +- 34 11 +- 27 3
7849 20 Mar 02 06:43 LAG1 12 0 17 -1 +- 27 -14 +- 23 3
7849 20 Mar 02 22:43 LAG2 20 0 11 -9 +- 22 1 +- 14 4
7849 22 Mar 02 04:15 LAG1 11 0 9 -8 +- 70 0 +- 37 3
7849 22 Mar 02 05:13 LAG2 20 0 5 0 +- 21 1 +- 13 4
7849 22 Mar 02 18:06 LAG1 2 0 3 -5 +- 703 2 +- 811 0
7849 22 Mar 02 19:24 LAG2 2 0 3 7 +- 136 -10 +- 242 0
7849 22 Mar 02 23:15 LAG2 13 0 15 -12 +- 39 -2 +- 26 3
7849 23 Mar 02 07:24 LAG2 13 0 16 0 +- 28 14 +- 25 4
7849 23 Mar 02 12:51 LAG1 14 0 16 15 +- 27 0 +- 18 4
7849 23 Mar 02 16:14 LAG1 17 0 5 -4 +- 23 -1 +- 16 3
7849 23 Mar 02 21:11 LAG2 17 0 11 -1 +- 23 -8 +- 18 2

Station 7941 (Matera) (Position solved, acc. 10 mm)
7941 19 Mar 02 05:13 LAG2 20 0 6 -5 +- 23 4 +- 17 1
7941 19 Mar 02 09:25 LAG1 10 0 23 -18 +- 31 -10 +- 31 1
7941 21 Mar 02 03:23 LAG1 17 0 4 4 +- 26 -1 +- 16 1
7941 21 Mar 02 05:19 LAG2 23 0 2 2 +- 20 0 +- 15 1
7941 21 Mar 02 06:39 LAG1 14 0 14 14 +- 28 0 +- 23 2

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 14 Mar 02 05:47 LAG1 14 0 28 -28 +- 26 1 +- 20 2
8834 14 Mar 02 06:35 LAG2 10 0 40 -40 +- 30 7 +- 33 2
8834 14 Mar 02 09:19 LAG1 2 0 74 -97 +- 263 -43 +- 461 0
8834 18 Mar 02 21:16 LAG2 2 0 66 -45 +- 533 -25 +- 626 0
--------------------------------------------------------------------------------



Distribution of daytime, nighttime and twilight passes since Jul 1, 2001:
--------------------------------------------------------------------------
Station System Period Number of Passes
LAGEOS-1 LAGEOS-2
Day/Night/Twil. Day/Night/Twil. Total
--------------------------------------------------------------------------
1824 KIEVLA 010704 - 020318 0/ 13/ 0 0/ 21/ 0 34
1863 MDNLAS 010808 - 011118 0/ 9/ 0 0/ 5/ 0 14
1864 MD2LAS 011025 - 020324 0/ 5/ 0 0/ 10/ 0 15
1868 KOMLAS 010910 - 020323 0/ 11/ 0 0/ 7/ 0 18
1873 SIMLAS 010706 - 020317 0/ 36/ 0 0/ 46/ 0 82
1884 RIGLAS 010702 - 020325 0/ 37/ 0 0/ 50/ 4 91
1893 CRMLAS 010702 - 020319 0/ 27/ 0 0/ 36/ 0 63
7080 MLRS25 010703 - 020319 95/108/ 17 129/156/ 13 518
7090 ML0514 010701 - 020320 175/352/ 38 209/244/ 28 1046
7105 ML0725 010701 - 020317 149/163/ 23 96/213/ 17 661
7110 ML0414 010701 - 020320 69/224/ 23 61/297/ 26 700
7124 ML0819 011101 - 020320 0/ 14/ 0 0/ 15/ 0 29
7210 HOLLAS 010703 - 020320 4/ 84/ 4 12/ 90/ 7 201
7231 WUHA01 010704 - 010806 0/ 2/ 0 0/ 1/ 0 3
7237 CHALAS 010708 - 020319 0/170/ 1 0/232/ 2 405
7249 BEJLAS 010704 - 020318 0/ 59/ 0 0/ 80/ 0 139
7339 TATLAS 010702 - 011012 27/ 1/ 0 16/ 0/ 0 44
7356 TROS01 010824 - 011229 0/ 62/ 0 0/ 52/ 0 114
7403 TLRS3 010704 - 020122 4/ 52/ 1 2/ 61/ 2 122
7501 ML0616 010701 - 020320 91/112/ 6 128/ 98/ 15 450
7548 CAGLAS 010718 - 020322 0/ 4/ 0 0/ 11/ 0 15
7806 METLAS 010702 - 020317 0/ 26/ 3 0/ 23/ 1 53
7810 ZIMLAT 010701 - 020325 226/139/ 23 116/156/ 17 677
7811 POLLAS 010701 - 020320 0/ 52/ 1 0/ 67/ 0 120
7820 YSLR01 011012 - 020324 0/ 45/ 1 0/ 64/ 0 110
7824 SPNLAS 010705 - 020324 0/ 49/ 3 1/ 64/ 2 119
7832 SALRO 010701 - 020325 186/ 44/ 12 158/ 37/ 11 448
7835 GRASSE 010701 - 020324 90/149/ 22 49/176/ 15 501
7836 GFZLAS 010701 - 020319 2/ 57/ 4 1/ 71/ 8 143
7837 CHILAS 010702 - 020319 0/ 82/ 1 0/108/ 1 192
7838 SHOLAS 010704 - 020320 6/ 72/ 5 12/103/ 3 201
7839 AUSLAS 010702 - 020325 155/159/ 25 88/156/ 19 602
7840 RGOLAS 010701 - 020325 238/134/ 32 109/155/ 22 690
7845 GRASLL 010701 - 020324 73/ 51/ 15 33/ 59/ 7 238
7848 FTLR03 020202 - 020323 3/ 2/ 0 0/ 9/ 0 14
7849 MSLO01 010701 - 020325 115/198/ 22 147/103/ 28 613
7941 MLROnn 010703 - 020321 62/ 22/ 5 27/ 24/ 3 143
8834 WLRS01 010701 - 020318 123/ 64/ 18 73/111/ 17 406
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
020317.0 -81.1 +/- 0.1 519.3 +/- 0.1 -32182.05 +/- 0.01
020320.0 -72.0 +/- 0.1 525.1 +/- 0.1 -32184.30 +/- 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

********************************************************************************

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