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SLR-Report No.255

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Date:2000-08-02 16:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 255: Delft QL Report Week 31, 2000
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2000-08-02 16:45:00 UTC Message No. 255
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report Week 31, 2000


WEGENER-2 IERS


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


WEEK 31, 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, Jul 31, 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@deos.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,
Aug 1, 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) 000719 - 000724 - 3
1884 Riga, Latvia 000730 - 000730 - 1
1893 Kazivili, Crimea, Ukraine 000720 - 000728 - 5
7080 McDonald Obs., Fort Davis, TX 000717 - 000730 9 12
7090 Yarragadee, Australia 000715 - 000730 17 14
7105 Greenbelt, Maryland 000715 - 000718 4 5
7110 Monument Peak, California 000719 - 000731 11 10
7124 Papeete, Tahiti 000716 - 000726 4 1
7231 Wuhan, China (new) 000722 - 000730 2 3
7237 Changchun, China 000724 - 000730 1 3
7328 Koganei, Japan 000729 - 000731 1 2
7403 Arequipa, Peru (TLRS-3) 000716 - 000728 5 6
7810 Zimmerwald, Switzerland 000725 - 000731 11 4
7811 Borowiec, Poland 000727 - 000727 - 1
7824 San Fernando, Spain 000725 - 000731 8 7
7835 Grasse, France 000722 - 000731 12 12
7836 Potsdam, Germany 000724 - 000725 1 1
7837 Shanghai Observatory, China 000726 - 000730 1 5
7838 Simosato Observatory, Japan 000726 - 000728 1 1
7839 Graz, Austria 000725 - 000729 2 4
7840 Herstmonceux, United Kingdom 000725 - 000731 13 9
7845 Grasse, France (LLR) 000726 - 000731 3 2
7849 Mount Stromlo, Australia 000724 - 000730 21 19
7939 Matera, Italy 000728 - 000731 1 1
8834 Wettzell, Germany 000725 - 000731 5 4
------ ------ --- ---
TOTAL 000715 - 000731 133 135
------------------------------------------------------------------------------


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, Jul 20, 2000, to Sat, Jul 29, 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 20 25
Number of Passes 148/147 156/156
Number of Normal Points 1507/1479 1895/1856
RMS of Fit (mm) 67 54
-----------------------------------------------------------------------


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 22 Jul 00 19:34 Lag2 10 0 266 269 +- 194 -22 +- 199 13
1864 24 Jul 00 19:55 Lag2 5 0 125 122 +- 276 11 +- 874 18

Station 1884 (Riga) (Position fixed, acc. 100 mm)
1884 21 Jul 00 21:07 Lag2 13 0 78 -78 +- 97 1 +- 86 10

Station 1893 (Kazivili) (Position solved, acc. 100 mm)
1893 20 Jul 00 19:31 Lag2 9 0 17 -59 +- 639 28 +- 307 14
1893 21 Jul 00 21:19 Lag2 10 0 30 35 +- 128 -9 +- 92 9
1893 24 Jul 00 19:39 Lag2 12 0 18 2 +- 96 14 +- 101 10
1893 25 Jul 00 21:44 Lag2 2 0 30 63 +-1864 135 +-2715 0
1893 28 Jul 00 20:17 Lag2 10 0 31 -49 +- 281 13 +- 187 8

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 20 Jul 00 08:32 Lag2 12 0 10 9 +- 47 -15 +- 52 4
7080 20 Jul 00 11:28 Lag1 18 0 43 27 +- 26 6 +- 14 30
7080 23 Jul 00 20:43 Lag2 9 0 19 10 +- 131 -15 +- 72 2
7080 23 Jul 00 21:22 Lag1 6 0 9 38 +- 216 -20 +- 107 3
7080 24 Jul 00 00:35 Lag2 14 0 36 3 +- 30 -30 +- 24 4
7080 24 Jul 00 18:33 Lag2 3 0 3 25 +- 505 18 +- 400 0
7080 24 Jul 00 22:49 Lag2 9 0 15 16 +- 81 0 +- 68 2
7080 24 Jul 00 23:17 Lag1 6 0 78 65 +- 65 -21 +- 92 2
7080 28 Jul 00 01:19 Lag2 3 0 24 -23 +- 66 -5 +- 409 3
7080 28 Jul 00 05:11 Lag2 11 0 20 -10 +- 32 8 +- 18 3
7080 29 Jul 00 03:15 Lag2 12 0 32 18 +- 59 34 +- 44 5
7080 29 Jul 00 13:42 Lag1 4 0 78 171 +- 550 -45 +- 264 2

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 20 Jul 00 02:29 Lag2 10 0 12 41 +- 118 25 +- 63 3
7090 20 Jul 00 09:29 Lag1 15 0 56 -42 +- 24 -15 +- 11 12
7090 20 Jul 00 16:10 Lag2 9 0 96 89 +- 32 -23 +- 22 9
7090 20 Jul 00 16:17 Lag1 3 0 126 70 +- 287 -63 +- 320 1
7090 20 Jul 00 19:33 Lag1 17 0 56 11 +- 23 -29 +- 12 9
7090 20 Jul 00 20:21 Lag2 15 0 37 -46 +- 32 17 +- 25 7
7090 21 Jul 00 08:21 Lag1 14 0 27 -35 +- 35 20 +- 22 4
7090 21 Jul 00 11:37 Lag1 16 0 34 -33 +- 24 0 +- 18 3
7090 21 Jul 00 15:05 Lag1 3 0 22 -23 +- 99 -1 +- 373 1
7090 21 Jul 00 18:21 Lag2 9 0 41 6 +- 32 -23 +- 18 1
7090 22 Jul 00 02:55 Lag2 3 0 9 49 +- 411 30 +- 296 0
7090 23 Jul 00 00:49 Lag2 11 1 27 -49 +- 56 -29 +- 41 3
7090 24 Jul 00 07:37 Lag1 18 0 55 -33 +- 22 31 +- 14 4
7090 24 Jul 00 11:13 Lag1 14 0 102 72 +- 30 33 +- 24 4
7090 24 Jul 00 14:35 Lag1 4 0 34 -37 +- 52 54 +- 196 0
7090 24 Jul 00 16:35 Lag2 10 0 18 6 +- 31 -9 +- 17 1
7090 24 Jul 00 17:45 Lag1 7 0 75 -67 +- 55 8 +- 47 3
7090 25 Jul 00 01:03 Lag2 13 0 56 15 +- 28 40 +- 19 2
7090 25 Jul 00 05:19 Lag2 8 0 38 27 +- 34 46 +- 66 3
7090 25 Jul 00 06:18 Lag1 15 0 15 -13 +- 26 10 +- 25 5
7090 25 Jul 00 09:43 Lag1 13 0 36 17 +- 28 12 +- 13 7
7090 25 Jul 00 13:15 Lag1 7 0 16 -15 +- 36 9 +- 80 0
7090 25 Jul 00 14:53 Lag2 10 0 42 42 +- 33 0 +- 60 1
7090 25 Jul 00 16:21 Lag1 10 0 22 -23 +- 33 -3 +- 24 3
7090 25 Jul 00 18:43 Lag2 14 0 25 -2 +- 33 17 +- 24 1
7090 25 Jul 00 23:11 Lag2 14 0 73 7 +- 25 81 +- 28 2
7090 26 Jul 00 03:13 Lag2 6 0 114 34 +- 152 77 +- 80 5
7090 26 Jul 00 08:27 Lag1 20 0 23 3 +- 23 -13 +- 12 1
7090 27 Jul 00 07:05 Lag1 4 0 72 -60 +- 48 34 +- 51 12
7090 28 Jul 00 09:45 Lag1 1 0 33 0 +- 0 0 +- 0 0
7090 28 Jul 00 17:15 Lag2 5 0 41 28 +- 85 -19 +- 117 0
7090 29 Jul 00 07:45 Lag1 22 1 36 -27 +- 20 8 +- 11 16
7090 29 Jul 00 15:07 Lag2 19 0 35 -5 +- 23 -24 +- 17 4
7090 29 Jul 00 17:49 Lag1 7 0 53 119 +- 174 31 +- 78 3

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 23 Jul 00 03:09 Lag2 3 0 50 -27 +- 433 -17 +- 338 2
7105 23 Jul 00 07:24 Lag1 9 0 134 -158 +- 68 23 +- 57 5

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 20 Jul 00 08:11 Lag2 21 0 25 13 +- 20 -14 +- 14 3
7110 20 Jul 00 11:33 Lag1 17 0 33 8 +- 25 15 +- 14 13
7110 21 Jul 00 06:15 Lag2 16 0 9 0 +- 29 5 +- 18 2
7110 21 Jul 00 10:13 Lag1 15 0 37 28 +- 29 11 +- 23 2
7110 21 Jul 00 13:39 Lag1 10 0 18 -19 +- 37 0 +- 26 2
7110 22 Jul 00 04:19 Lag2 12 0 58 -14 +- 27 -27 +- 13 3
7110 22 Jul 00 08:27 Lag2 13 0 71 69 +- 34 -3 +- 36 3
7110 22 Jul 00 12:19 Lag1 8 0 39 -49 +- 67 -8 +- 47 1
7110 23 Jul 00 11:05 Lag1 12 0 126 -156 +- 36 35 +- 21 12
7110 24 Jul 00 04:55 Lag2 13 0 69 -62 +- 44 -6 +- 33 4
7110 24 Jul 00 08:49 Lag2 15 0 87 83 +- 28 9 +- 33 2
7110 24 Jul 00 09:33 Lag1 16 0 140 -140 +- 24 7 +- 23 13
7110 25 Jul 00 02:47 Lag2 20 0 29 -30 +- 25 3 +- 20 8
7110 25 Jul 00 06:47 Lag2 24 0 41 -21 +- 20 26 +- 13 8
7110 25 Jul 00 11:37 Lag1 17 0 60 -48 +- 24 -8 +- 11 22
7110 26 Jul 00 04:51 Lag2 14 0 95 -25 +- 26 52 +- 17 13
7110 26 Jul 00 09:07 Lag2 7 0 87 -98 +- 43 55 +- 102 1
7110 26 Jul 00 10:23 Lag1 16 0 29 27 +- 24 -12 +- 19 1
7110 26 Jul 00 14:08 Lag1 10 0 114 16 +- 72 57 +- 41 2
7110 27 Jul 00 06:57 Lag2 20 2 27 26 +- 25 -2 +- 19 2
7110 27 Jul 00 09:13 Lag1 5 0 70 -91 +- 85 45 +- 155 5
7110 27 Jul 00 12:35 Lag1 11 1 58 -32 +- 30 32 +- 23 12
7110 27 Jul 00 22:51 Lag1 8 1 32 -22 +- 43 -11 +- 38 5
7110 28 Jul 00 05:01 Lag2 21 0 20 -17 +- 21 3 +- 12 11
7110 28 Jul 00 11:03 Lag1 12 0 19 22 +- 39 14 +- 21 3
7110 28 Jul 00 14:53 Lag1 8 0 73 -83 +- 60 10 +- 52 2

Station 7124 (Papeete) (Position fixed, acc. 10 mm)
7124 21 Jul 00 04:25 Lag1 6 0 88 -59 +- 41 -38 +- 33 3
7124 21 Jul 00 10:39 Lag2 5 0 38 4 +- 44 -17 +- 19 5
7124 21 Jul 00 14:39 Lag1 7 0 32 -54 +- 237 10 +- 108 1
7124 25 Jul 00 11:07 Lag2 19 1 48 6 +- 22 28 +- 14 7
7124 25 Jul 00 12:31 Lag1 14 0 34 -43 +- 43 7 +- 23 8
7124 26 Jul 00 11:27 Lag1 3 1 37 125 +-1671 -44 +- 852 0

Station 7231 (Wuhan) (Position solved, acc. 150 mm)
7231 20 Jul 00 15:37 Lag2 14 0 72 -18 +- 129 29 +- 113 58
7231 20 Jul 00 19:05 Lag1 16 0 57 27 +- 114 2 +- 91 51
7231 21 Jul 00 13:31 Lag2 18 0 79 32 +- 108 10 +- 57 71
7231 22 Jul 00 15:47 Lag2 17 0 81 22 +- 118 -24 +- 97 69
7231 22 Jul 00 20:01 Lag1 7 0 141 -108 +- 192 46 +- 263 62
7231 27 Jul 00 14:31 Lag2 13 0 56 0 +- 136 -20 +- 120 51

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 21 Jul 00 17:37 Lag1 13 0 40 -44 +- 53 19 +- 60 6
7237 24 Jul 00 16:05 Lag2 15 0 46 27 +- 52 25 +- 55 9
7237 25 Jul 00 14:19 Lag2 6 0 42 -44 +- 75 32 +- 164 3

Station 7328 (Koganei) (Position fixed, acc. 20 mm)
7328 24 Jul 00 04:42 Lag1 4 0 16 -17 +- 105 -33 +- 129 6
7328 29 Jul 00 10:42 Lag2 12 0 72 45 +- 33 34 +- 27 4

Station 7403 (Arequipa) (Position fixed, acc. 10 mm)
7403 20 Jul 00 05:09 Lag2 11 0 25 27 +- 31 -16 +- 32 2
7403 20 Jul 00 08:41 Lag1 6 0 20 190 +- 420 -77 +- 162 1
7403 21 Jul 00 06:55 Lag1 6 0 55 77 +- 55 -20 +- 24 6
7403 21 Jul 00 07:29 Lag2 8 0 16 -6 +- 96 16 +- 72 1
7403 24 Jul 00 05:30 Lag2 6 0 5 0 +- 112 5 +- 105 2
7403 25 Jul 00 07:53 Lag2 8 0 43 -7 +- 50 50 +- 52 3
7403 25 Jul 00 08:47 Lag1 6 0 25 -19 +- 158 -2 +- 91 2
7403 27 Jul 00 05:51 Lag1 9 0 42 -26 +- 32 39 +- 37 2
7403 27 Jul 00 07:53 Lag2 17 0 59 55 +- 23 -15 +- 28 4
7403 28 Jul 00 06:03 Lag2 7 0 6 4 +- 42 13 +- 73 2

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 20 Jul 00 22:49 Lag2 24 0 31 -28 +- 41 0 +- 28 13
7810 21 Jul 00 02:19 Lag1 22 0 64 57 +- 42 15 +- 28 16
7810 21 Jul 00 05:57 Lag1 12 0 9 6 +- 77 -2 +- 52 2
7810 21 Jul 00 21:15 Lag2 16 0 8 6 +- 92 0 +- 56 5
7810 22 Jul 00 01:03 Lag1 8 0 29 -29 +- 73 1 +- 104 2
7810 22 Jul 00 08:11 Lag1 13 0 47 51 +- 64 -5 +- 41 4
7810 22 Jul 00 11:51 Lag1 5 0 15 -7 +- 379 -3 +- 198 7
7810 22 Jul 00 15:07 Lag2 7 0 20 -17 +- 76 11 +- 93 6
7810 22 Jul 00 15:09 Lag1 5 0 40 43 +- 98 -17 +- 69 4
7810 25 Jul 00 11:11 Lag1 4 0 19 33 +- 170 -36 +- 264 0
7810 27 Jul 00 01:13 Lag1 14 0 53 -51 +- 58 1 +- 64 8
7810 27 Jul 00 05:09 Lag1 11 0 34 -22 +- 161 25 +- 77 2
7810 27 Jul 00 08:21 Lag1 11 0 41 -2 +- 61 27 +- 40 3
7810 28 Jul 00 10:23 Lag1 2 0 50 222 +-5745 83 +-2784 0

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 23 Jul 00 21:21 Lag2 13 0 11 -9 +- 58 7 +- 62 6
7811 27 Jul 00 21:48 Lag2 4 0 25 -30 +- 131 -20 +- 259 5

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 20 Jul 00 04:01 Lag1 7 0 106 107 +- 104 1 +- 98 6
7824 20 Jul 00 23:03 Lag2 5 0 38 -53 +- 135 -30 +- 183 13
7824 21 Jul 00 02:50 Lag1 3 0 169 317 +- 284 -299 +- 523 3
7824 21 Jul 00 21:06 Lag2 12 0 67 56 +- 45 -32 +- 46 38
7824 22 Jul 00 01:07 Lag2 10 0 78 65 +- 56 2 +- 51 39
7824 23 Jul 00 03:14 Lag1 11 0 109 -215 +- 127 -72 +- 71 31
7824 25 Jul 00 07:43 Lag1 9 0 68 -70 +- 53 -20 +- 48 18
7824 25 Jul 00 21:50 Lag2 9 0 55 -7 +- 182 35 +- 105 4
7824 26 Jul 00 01:35 Lag2 13 0 48 -54 +- 57 13 +- 56 14
7824 26 Jul 00 02:41 Lag1 16 0 71 39 +- 41 -30 +- 28 14
7824 26 Jul 00 06:39 Lag1 7 0 154 -61 +- 174 -58 +- 108 3
7824 26 Jul 00 19:45 Lag2 13 0 64 4 +- 74 -51 +- 57 7
7824 26 Jul 00 23:28 Lag2 13 0 95 75 +- 42 -25 +- 27 23
7824 27 Jul 00 01:41 Lag1 1 0 24 0 +- 0 0 +- 0 0
7824 27 Jul 00 08:33 Lag1 6 0 89 -76 +- 65 32 +- 89 10
7824 27 Jul 00 21:45 Lag2 7 0 14 -15 +- 127 -22 +- 117 6
7824 28 Jul 00 01:55 Lag2 2 0 64 153 +- 645 -859 +-6053 0
7824 28 Jul 00 03:27 Lag1 15 0 23 30 +- 77 6 +- 42 7
7824 28 Jul 00 07:25 Lag1 9 0 90 -68 +- 132 -11 +- 78 24

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 20 Jul 00 07:19 Lag1 18 0 43 26 +- 29 20 +- 19 3
7835 20 Jul 00 10:51 Lag1 7 0 22 -13 +- 48 24 +- 74 3
7835 20 Jul 00 22:53 Lag2 22 0 48 -47 +- 27 11 +- 19 6
7835 21 Jul 00 21:13 Lag2 18 0 10 0 +- 45 -5 +- 28 3
7835 22 Jul 00 00:57 Lag1 15 0 60 -55 +- 34 10 +- 36 4
7835 22 Jul 00 19:09 Lag2 20 0 50 0 +- 30 -34 +- 21 1
7835 22 Jul 00 23:05 Lag2 23 0 57 57 +- 26 -12 +- 19 1
7835 24 Jul 00 19:41 Lag2 5 0 29 15 +- 202 12 +- 184 0
7835 24 Jul 00 23:21 Lag2 24 0 30 -29 +- 28 17 +- 20 5
7835 25 Jul 00 07:49 Lag1 6 0 36 -25 +- 103 -7 +- 63 2
7835 25 Jul 00 11:16 Lag1 5 0 24 38 +- 275 -37 +- 167 2
7835 26 Jul 00 09:39 Lag1 9 0 71 17 +- 59 -55 +- 57 4
7835 26 Jul 00 19:46 Lag2 12 0 43 -7 +- 54 -27 +- 40 3
7835 26 Jul 00 23:29 Lag2 24 0 66 66 +- 25 -11 +- 20 2
7835 27 Jul 00 01:11 Lag1 19 0 79 -75 +- 28 13 +- 22 10
7835 27 Jul 00 08:21 Lag1 13 0 50 -8 +- 35 37 +- 26 4
7835 27 Jul 00 15:13 Lag1 12 0 17 9 +- 40 6 +- 22 3
7835 27 Jul 00 17:36 Lag2 15 0 16 -1 +- 34 -14 +- 31 4
7835 27 Jul 00 21:37 Lag2 17 0 28 -13 +- 32 -19 +- 21 4
7835 28 Jul 00 10:29 Lag1 5 0 25 24 +- 57 1 +- 48 1
7835 28 Jul 00 13:53 Lag1 15 0 23 -18 +- 34 10 +- 19 7
7835 28 Jul 00 16:07 Lag2 8 0 53 -31 +- 298 41 +- 146 1
7835 28 Jul 00 20:23 Lag2 4 0 16 26 +-1314 -4 +- 590 2
7835 29 Jul 00 02:09 Lag1 16 0 159 159 +- 32 -1 +- 25 12
7835 29 Jul 00 18:03 Lag2 7 0 38 -37 +- 48 -3 +- 93 2
7835 29 Jul 00 21:51 Lag2 25 0 10 4 +- 25 3 +- 16 7

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 23 Jul 00 17:23 Lag2 3 0 229 -189 +- 78 -387 +- 237 136
7836 23 Jul 00 21:23 Lag2 13 0 8 7 +- 42 -6 +- 38 5
7836 24 Jul 00 01:50 Lag1 9 0 93 -104 +- 63 -22 +- 90 9
7836 25 Jul 00 21:50 Lag2 1 0 47 0 +- 0 0 +- 0 0

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 20 Jul 00 11:51 Lag2 10 0 89 -45 +- 148 90 +- 105 23
7837 20 Jul 00 15:35 Lag2 24 0 69 -69 +- 36 3 +- 24 10
7837 20 Jul 00 19:01 Lag1 14 0 40 13 +- 53 -23 +- 40 7
7837 21 Jul 00 17:53 Lag2 12 0 42 -33 +- 59 -18 +- 92 9
7837 22 Jul 00 12:01 Lag2 9 0 71 -23 +- 93 -47 +- 86 8
7837 22 Jul 00 19:55 Lag1 11 0 103 -107 +- 55 -19 +- 47 8
7837 26 Jul 00 12:30 Lag2 12 0 4007 -78 +- 89 3243 +- 71 11
7837 26 Jul 00 16:19 Lag2 19 0 84 84 +- 40 -33 +- 38 7
7837 26 Jul 00 18:05 Lag1 10 0 204 -206 +- 68 2 +- 78 3
7837 27 Jul 00 14:25 Lag2 8 0 13 -36 +- 174 -24 +- 128 4
7837 28 Jul 00 12:55 Lag2 10 0 49 -7 +- 236 30 +- 128 5

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 26 Jul 00 12:31 Lag2 14 0 25 12 +- 42 -24 +- 35 10
7838 28 Jul 00 18:39 Lag1 13 0 80 72 +- 38 -11 +- 27 14

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 20 Jul 00 23:11 Lag2 11 0 37 -50 +- 54 13 +- 45 1
7839 22 Jul 00 19:11 Lag2 7 0 63 47 +- 70 -16 +- 65 1
7839 23 Jul 00 21:34 Lag2 12 0 22 31 +- 63 -6 +- 39 3
7839 25 Jul 00 14:21 Lag1 8 0 70 26 +- 68 -31 +- 46 1
7839 25 Jul 00 21:24 Lag2 21 0 50 -35 +- 21 24 +- 12 7
7839 26 Jul 00 09:41 Lag1 8 0 76 55 +- 34 -57 +- 47 1
7839 26 Jul 00 15:41 Lag2 11 0 23 28 +- 37 -23 +- 35 1
7839 27 Jul 00 21:34 Lag2 20 0 28 4 +- 22 -18 +- 16 3
7839 29 Jul 00 21:49 Lag2 10 0 6 11 +- 92 8 +- 60 4

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 20 Jul 00 07:30 Lag1 12 0 34 13 +- 43 15 +- 28 2
7840 20 Jul 00 14:11 Lag1 18 0 41 -41 +- 26 -7 +- 15 9
7840 20 Jul 00 14:58 Lag2 8 0 44 -7 +- 62 35 +- 45 5
7840 20 Jul 00 18:47 Lag2 19 0 48 7 +- 25 29 +- 16 3
7840 20 Jul 00 22:47 Lag2 21 0 42 -41 +- 23 8 +- 17 3
7840 21 Jul 00 02:25 Lag1 13 0 63 60 +- 30 25 +- 33 6
7840 21 Jul 00 05:57 Lag1 19 0 9 4 +- 24 2 +- 14 5
7840 21 Jul 00 09:33 Lag1 11 0 11 9 +- 33 4 +- 30 2
7840 21 Jul 00 12:49 Lag1 12 0 12 11 +- 31 -1 +- 17 4
7840 21 Jul 00 13:03 Lag2 4 0 8 6 +- 55 12 +- 103 1
7840 21 Jul 00 16:35 Lag1 10 0 31 -30 +- 34 4 +- 46 3
7840 21 Jul 00 17:01 Lag2 14 0 35 0 +- 39 22 +- 25 2
7840 21 Jul 00 21:03 Lag2 11 0 5 3 +- 32 -2 +- 31 3
7840 22 Jul 00 15:05 Lag1 5 0 21 26 +- 62 -8 +- 27 4
7840 22 Jul 00 15:19 Lag2 7 0 19 -22 +- 162 2 +- 100 1
7840 23 Jul 00 10:26 Lag1 3 0 15 11 +- 69 21 +- 247 1
7840 23 Jul 00 13:45 Lag1 12 0 23 20 +- 31 -9 +- 19 5
7840 23 Jul 00 17:27 Lag2 7 0 21 1 +- 146 13 +- 97 2
7840 25 Jul 00 07:35 Lag1 5 0 42 -5 +- 206 -28 +- 123 1
7840 25 Jul 00 14:31 Lag1 3 0 60 -77 +- 857 -73 +- 456 2
7840 26 Jul 00 13:13 Lag1 11 0 22 -28 +- 42 12 +- 23 2
7840 26 Jul 00 15:45 Lag2 10 0 38 -9 +- 106 -16 +- 60 1
7840 26 Jul 00 19:27 Lag2 21 0 45 12 +- 23 -28 +- 15 2
7840 27 Jul 00 21:43 Lag2 3 0 14 -28 +- 409 -37 +- 364 0
7840 28 Jul 00 23:47 Lag2 10 0 111 -108 +- 34 -34 +- 53 2
7840 29 Jul 00 02:05 Lag1 9 0 164 180 +- 47 31 +- 56 8
7840 29 Jul 00 09:09 Lag1 8 0 23 26 +- 44 16 +- 37 2
7840 29 Jul 00 13:01 Lag1 3 0 24 21 +- 626 1 +- 266 0
7840 29 Jul 00 14:01 Lag2 12 0 20 14 +- 67 -20 +- 41 2
7840 29 Jul 00 16:09 Lag1 14 0 127 -124 +- 28 17 +- 25 10
7840 29 Jul 00 17:45 Lag2 21 0 8 -7 +- 23 0 +- 15 2
7840 29 Jul 00 21:49 Lag2 20 0 8 -8 +- 24 0 +- 18 2

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 20 Jul 00 07:17 Lag1 19 0 43 -3 +- 24 26 +- 15 4
7845 20 Jul 00 18:49 Lag2 21 0 54 -4 +- 23 38 +- 16 7
7845 20 Jul 00 22:51 Lag2 23 0 60 -55 +- 22 19 +- 15 9
7845 21 Jul 00 06:02 Lag1 4 0 46 -6 +- 300 23 +- 181 4
7845 21 Jul 00 20:59 Lag2 21 0 13 -12 +- 23 3 +- 15 3
7845 26 Jul 00 06:21 Lag1 8 0 100 -93 +- 38 -35 +- 39 5
7845 26 Jul 00 19:37 Lag2 20 0 56 -30 +- 28 -18 +- 15 7
7845 28 Jul 00 13:47 Lag1 8 0 48 -60 +- 95 -7 +- 51 1
7845 28 Jul 00 15:43 Lag2 7 0 64 -48 +- 84 16 +- 81 3

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 20 Jul 00 02:39 Lag2 14 0 32 -34 +- 30 -3 +- 24 3
7849 20 Jul 00 12:50 Lag1 3 0 41 42 +- 72 -84 +- 113 0
7849 20 Jul 00 16:05 Lag1 5 0 117 69 +- 138 -38 +- 106 3
7849 20 Jul 00 19:37 Lag1 7 0 92 -101 +- 43 -20 +- 45 3
7849 21 Jul 00 01:09 Lag2 1 0 13 0 +- 0 0 +- 0 0
7849 21 Jul 00 04:25 Lag1 10 0 30 28 +- 30 3 +- 24 5
7849 21 Jul 00 08:07 Lag1 13 0 66 -62 +- 32 -2 +- 19 10
7849 22 Jul 00 20:47 Lag2 15 0 61 -17 +- 24 -37 +- 16 7
7849 23 Jul 00 00:55 Lag2 14 0 59 61 +- 27 2 +- 16 4
7849 23 Jul 00 05:20 Lag1 14 0 90 -96 +- 27 35 +- 22 7
7849 23 Jul 00 08:43 Lag1 4 0 45 87 +- 465 64 +- 228 0
7849 23 Jul 00 12:09 Lag1 5 0 25 8 +- 98 33 +- 101 4
7849 23 Jul 00 14:43 Lag2 9 0 11 -30 +- 90 -18 +- 64 1
7849 23 Jul 00 15:33 Lag1 4 0 86 -75 +- 152 9 +- 135 4
7849 24 Jul 00 13:07 Lag2 8 0 43 -43 +- 34 -4 +- 80 3
7849 24 Jul 00 14:12 Lag1 9 0 51 -29 +- 32 36 +- 29 5
7849 24 Jul 00 16:57 Lag2 16 0 22 16 +- 25 6 +- 16 1
7849 24 Jul 00 17:41 Lag1 16 0 29 -24 +- 26 16 +- 17 12
7849 24 Jul 00 21:03 Lag2 8 0 46 13 +- 34 23 +- 17 1
7849 25 Jul 00 01:09 Lag2 9 0 50 18 +- 42 35 +- 25 4
7849 25 Jul 00 06:03 Lag1 7 0 3 0 +- 125 -1 +- 74 2
7849 25 Jul 00 23:23 Lag2 8 0 86 7 +- 103 63 +- 70 2
7849 26 Jul 00 04:53 Lag1 12 0 41 64 +- 43 -35 +- 29 5
7849 26 Jul 00 14:59 Lag1 7 0 114 -83 +- 36 57 +- 31 5
7849 26 Jul 00 17:19 Lag2 10 0 57 28 +- 57 -49 +- 35 3
7849 26 Jul 00 21:19 Lag2 18 0 43 -26 +- 23 -19 +- 17 10
7849 27 Jul 00 03:29 Lag1 6 0 99 -100 +- 47 5 +- 127 1
7849 27 Jul 00 06:53 Lag1 14 0 34 1 +- 25 23 +- 17 3
7849 27 Jul 00 10:33 Lag1 7 0 59 41 +- 87 16 +- 76 7
7849 27 Jul 00 13:50 Lag1 9 0 32 -5 +- 70 25 +- 49 5
7849 27 Jul 00 15:05 Lag2 13 0 18 -6 +- 37 -12 +- 20 1
7849 27 Jul 00 16:55 Lag1 19 0 39 9 +- 22 18 +- 10 4
7849 27 Jul 00 19:17 Lag2 24 0 24 -1 +- 19 -18 +- 15 4
7849 27 Jul 00 23:35 Lag2 17 0 26 13 +- 24 18 +- 18 7
7849 28 Jul 00 05:27 Lag1 19 0 28 -11 +- 22 -15 +- 13 9
7849 28 Jul 00 08:57 Lag1 18 0 59 -43 +- 22 -26 +- 15 7
7849 28 Jul 00 12:25 Lag1 7 0 42 32 +- 37 -47 +- 46 2
7849 28 Jul 00 13:17 Lag2 12 0 40 40 +- 27 1 +- 19 3
7849 28 Jul 00 15:41 Lag1 17 0 49 41 +- 24 -20 +- 12 6
7849 28 Jul 00 17:25 Lag2 16 0 24 -7 +- 25 16 +- 16 4
7849 28 Jul 00 19:17 Lag1 13 0 84 -84 +- 26 -2 +- 33 9
7849 28 Jul 00 21:40 Lag2 17 0 56 30 +- 23 28 +- 16 5
7849 29 Jul 00 01:51 Lag2 16 0 79 -86 +- 28 11 +- 23 5
7849 29 Jul 00 04:06 Lag1 17 0 87 88 +- 23 -10 +- 20 4
7849 29 Jul 00 07:40 Lag1 15 0 140 -116 +- 29 -21 +- 18 16
7849 29 Jul 00 14:47 Lag1 5 0 16 97 +- 363 -49 +- 165 3
7849 29 Jul 00 15:33 Lag2 17 0 40 0 +- 25 -29 +- 19 2
7849 29 Jul 00 19:55 Lag2 4 0 31 -13 +- 51 -24 +- 53 3

Station 7939 (Matera) (Position fixed, acc. 120 mm)
7939 23 Jul 00 21:24 Lag2 9 1 151 -85 +- 137 25 +- 118 128
7939 28 Jul 00 19:50 Lag2 7 0 154 178 +- 476 167 +- 314 118

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 22 Jul 00 04:45 Lag1 14 0 56 -44 +- 35 -8 +- 20 9
8834 22 Jul 00 11:39 Lag1 3 0 51 -40 +- 135 24 +- 292 4
8834 22 Jul 00 15:23 Lag2 8 0 65 -83 +- 131 11 +- 76 3
8834 22 Jul 00 19:05 Lag2 15 0 55 -41 +- 25 -30 +- 17 5
8834 22 Jul 00 23:01 Lag2 15 0 32 23 +- 27 -11 +- 24 10
8834 23 Jul 00 03:49 Lag1 2 0 64 290 +-8762 -126 +-3116 0
8834 23 Jul 00 06:41 Lag1 21 0 47 10 +- 21 24 +- 11 12
8834 23 Jul 00 10:31 Lag1 8 0 28 -88 +- 156 49 +- 72 4
8834 23 Jul 00 21:27 Lag2 3 0 46 -50 +- 139 -11 +- 405 4
8834 24 Jul 00 01:39 Lag1 7 0 112 -322 +- 128 -158 +- 78 44
8834 24 Jul 00 08:47 Lag1 6 0 6 -8 +- 190 -3 +- 103 5
8834 25 Jul 00 07:31 Lag1 19 0 64 -38 +- 23 -23 +- 13 5
8834 25 Jul 00 11:07 Lag1 4 0 42 -41 +- 48 -10 +- 109 7
8834 25 Jul 00 13:41 Lag2 8 0 35 -71 +- 100 51 +- 58 14
8834 25 Jul 00 17:37 Lag2 7 0 56 -62 +- 42 50 +- 47 7
8834 26 Jul 00 20:07 Lag2 3 0 97 -213 +-1274 57 +- 630 4
8834 27 Jul 00 08:19 Lag1 15 0 67 -54 +- 25 38 +- 18 10
--------------------------------------------------------------------------------

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 000401 - 000724 0/ 4/ 0 0/ 49/ 0 53
1884 RIGLAS 000412 - 000730 0/ 2/ 0 0/ 47/ 8 57
1893 CRMLAS 000508 - 000728 0/ 0/ 0 0/ 27/ 0 27
7080 MLRS25 000404 - 000730 53/ 15/ 13 31/ 60/ 7 179
7090 ML0514 000401 - 000730 37/155/ 19 98/ 70/ 9 388
7105 ML0725 000401 - 000723 32/ 11/ 6 15/ 67/ 5 136
7110 ML0414 000401 - 000731 72/ 44/ 14 25/135/ 12 302
7124 ML0819 000403 - 000726 2/ 49/ 2 3/ 27/ 5 88
7231 WUHA01 000426 - 000730 0/ 10/ 0 0/ 50/ 1 61
7237 CHALAS 000401 - 000730 0/ 9/ 1 0/ 74/ 0 84
7249 BEJLAS 000404 - 000610 0/ 3/ 0 0/ 35/ 0 38
7328 KOGLAS 000401 - 000731 14/ 2/ 0 4/ 5/ 0 25
7335 KASLAS 000401 - 000526 21/ 0/ 0 3/ 0/ 0 24
7337 MIULAS 000401 - 000508 5/ 0/ 1 2/ 0/ 0 8
7339 TATLAS 000401 - 000518 14/ 2/ 1 2/ 1/ 0 20
7403 TLRS3 000405 - 000728 2/ 28/ 2 10/ 25/ 1 68
7548 CAGLAS 000516 - 000705 0/ 0/ 0 0/ 17/ 0 17
7806 METLAS 000406 - 000506 0/ 2/ 0 0/ 5/ 0 7
7810 ZIMLAT 000430 - 000731 120/ 9/ 8 23/ 57/ 11 228
7811 POLLAS 000405 - 000727 0/ 1/ 0 0/ 42/ 0 43
7820 YSLR01 000401 - 000703 0/ 10/ 1 0/ 30/ 0 41
7824 SPNLAS 000401 - 000731 25/ 25/ 5 4/ 95/ 3 157
7831 HELLAS 000621 - 000628 0/ 0/ 0 0/ 4/ 0 4
7835 GRASSE 000401 - 000731 59/ 15/ 3 23/ 72/ 8 180
7836 GFZLAS 000403 - 000725 6/ 6/ 3 4/ 52/ 1 72
7837 CHILAS 000405 - 000730 0/ 17/ 3 0/ 46/ 1 67
7838 SHOLAS 000406 - 000728 5/ 11/ 1 0/ 30/ 1 48
7839 AUSLAS 000401 - 000729 62/ 14/ 4 16/ 71/ 11 178
7840 RGOLAS 000401 - 000731 132/ 9/ 3 42/ 55/ 16 257
7845 GRASLL 000405 - 000731 74/ 0/ 3 22/ 26/ 2 127
7849 MSLO01 000401 - 000730 53/195/ 22 139/ 85/ 14 508
7939 SAO102 000504 - 000731 0/ 2/ 1 0/ 25/ 0 28
8834 WLRS01 000401 - 000731 140/ 4/ 5 30/ 63/ 14 256
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
722.0 94.0 +/- 0.1 259.2 +/- 0.1 -31795.64 +/- 0.01
725.0 92.2 +/- 0.1 256.3 +/- 0.1 -31795.86 +/- 0.01
728.0 91.1 +/- 0.1 254.4 +/- 0.1 -31795.77 +/- 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

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