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SLR-Report No.226

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Date:2000-07-20 16:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 226: Delft QL Report Week 29, 2000
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2000-07-20 16:45:00 UTC Message No. 226
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report Week 29, 2000


WEGENER-2 IERS


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


WEEK 29, 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 17, 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,
Jul 18, 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) 000628 - 000702 - 3
1884 Riga, Latvia 000704 - 000716 - 4
1893 Kazivili, Crimea, Ukraine 000630 - 000710 - 4
7080 McDonald Obs., Fort Davis, TX 000703 - 000719 15 14
7090 Yarragadee, Australia 000630 - 000719 26 17
7105 Greenbelt, Maryland 000630 - 000718 14 20
7110 Monument Peak, California 000630 - 000719 10 18
7124 Papeete, Tahiti 000704 - 000718 8 3
7231 Wuhan, China (new) 000616 - 000717 6 22
7237 Changchun, China 000630 - 000715 2 18
7328 Koganei, Japan 000708 - 000716 3 2
7403 Arequipa, Peru (TLRS-3) 000703 - 000718 9 8
7548 Cagliari, Italy 000630 - 000705 - 3
7810 Zimmerwald, Switzerland 000630 - 000717 11 7
7811 Borowiec, Poland 000713 - 000713 - 1
7820 Kunming, China 000701 - 000703 - 3
7824 San Fernando, Spain 000630 - 000718 4 16
7835 Grasse, France 000630 - 000718 10 16
7836 Potsdam, Germany 000702 - 000710 - 3
7837 Shanghai Observatory, China 000704 - 000717 4 11
7838 Simosato Observatory, Japan 000702 - 000716 1 3
7839 Graz, Austria 000630 - 000717 11 12
7840 Herstmonceux, United Kingdom 000701 - 000719 10 19
7845 Grasse, France (LLR) 000630 - 000717 11 6
7849 Mount Stromlo, Australia 000630 - 000718 49 39
7939 Matera, Italy 000701 - 000714 1 7
8834 Wettzell, Germany 000630 - 000718 18 17
------ ------ --- ---
TOTAL 000616 - 000719 223 296
------------------------------------------------------------------------------


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 6, 2000, to Sat, Jul 15, 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 19 24
Number of Passes 114/113 149/147
Number of Normal Points 1126/1100 1637/1586
RMS of Fit (mm) 38 39
-----------------------------------------------------------------------


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 1884 (Riga) (Position fixed, acc. 100 mm)
1884 8 Jul 00 21:37 Lag2 16 0 66 -66 +- 78 7 +- 69 9
1884 13 Jul 00 20:07 Lag2 15 0 93 -81 +- 85 21 +- 69 4

Station 1893 (Kazivili) (Position solved, acc. 100 mm)
1893 6 Jul 00 21:37 Lag2 15 0 14 0 +- 93 0 +- 71 14
1893 10 Jul 00 21:57 Lag2 13 0 13 -1 +- 98 -2 +- 97 13

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 11 Jul 00 05:45 Lag2 5 0 20 -15 +- 325 -3 +- 210 2
7080 11 Jul 00 09:20 Lag2 14 0 28 26 +- 28 7 +- 36 7
7080 11 Jul 00 09:52 Lag1 9 0 23 11 +- 74 9 +- 59 7
7080 11 Jul 00 13:13 Lag1 12 0 23 -11 +- 31 13 +- 19 4
7080 11 Jul 00 23:13 Lag1 5 0 44 1 +- 398 -20 +- 192 4
7080 12 Jul 00 03:30 Lag2 5 0 6 -5 +- 50 -14 +- 166 1
7080 12 Jul 00 07:22 Lag2 7 0 16 -4 +- 213 -11 +- 120 0
7080 12 Jul 00 11:51 Lag1 14 0 7 -2 +- 29 -3 +- 16 3
7080 13 Jul 00 06:07 Lag2 5 0 16 -14 +- 762 0 +- 354 2
7080 13 Jul 00 09:45 Lag2 10 0 54 55 +- 45 -2 +- 73 5
7080 13 Jul 00 10:27 Lag1 8 0 11 20 +- 72 13 +- 59 4
7080 13 Jul 00 14:11 Lag1 9 0 28 -37 +- 72 7 +- 51 2
7080 14 Jul 00 03:39 Lag2 3 0 13 84 +- 744 67 +- 688 2
7080 14 Jul 00 07:37 Lag2 15 0 5 2 +- 35 1 +- 29 4
7080 14 Jul 00 09:14 Lag1 5 0 49 49 +- 65 0 +- 122 5
7080 14 Jul 00 12:55 Lag1 5 0 4 3 +- 178 -3 +- 116 3

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 8 Jul 00 08:10 Lag1 19 0 64 -40 +- 22 25 +- 13 6
7090 8 Jul 00 11:43 Lag1 15 0 22 3 +- 24 13 +- 15 4
7090 8 Jul 00 18:19 Lag1 11 0 18 -18 +- 31 -7 +- 17 3
7090 8 Jul 00 18:51 Lag2 9 0 49 22 +- 84 -20 +- 61 1
7090 9 Jul 00 21:33 Lag2 5 0 33 -54 +- 471 12 +- 275 1
7090 10 Jul 00 05:31 Lag2 10 0 32 25 +- 31 25 +- 27 6
7090 11 Jul 00 11:21 Lag1 9 0 18 -1 +- 37 14 +- 29 5
7090 11 Jul 00 17:17 Lag2 11 0 23 -15 +- 28 -18 +- 35 5
7090 11 Jul 00 17:49 Lag1 11 0 29 -8 +- 30 17 +- 21 6
7090 11 Jul 00 21:15 Lag2 8 0 50 12 +- 121 -28 +- 92 0
7090 11 Jul 00 21:31 Lag1 8 0 24 23 +- 43 1 +- 46 2
7090 12 Jul 00 09:49 Lag1 15 0 19 -6 +- 28 9 +- 18 1
7090 12 Jul 00 13:23 Lag1 9 0 9 -9 +- 32 5 +- 51 2
7090 12 Jul 00 16:33 Lag1 15 0 15 -13 +- 25 6 +- 22 4
7090 12 Jul 00 19:09 Lag2 10 0 51 25 +- 33 -17 +- 16 3
7090 12 Jul 00 19:54 Lag1 1 0 35 0 +- 0 0 +- 0 0
7090 13 Jul 00 11:59 Lag1 5 0 35 -23 +- 68 11 +- 62 4
7090 13 Jul 00 15:22 Lag1 1 0 16 0 +- 0 0 +- 0 0
7090 13 Jul 00 17:17 Lag2 16 0 10 -14 +- 36 -7 +- 25 3
7090 14 Jul 00 01:43 Lag2 17 0 29 -3 +- 37 18 +- 25 2
7090 15 Jul 00 12:49 Lag1 7 0 45 -45 +- 44 0 +- 71 1

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 6 Jul 00 02:51 Lag2 6 1 5 15 +- 182 16 +- 160 2
7105 6 Jul 00 09:15 Lag1 14 2 25 17 +- 28 6 +- 26 18
7105 6 Jul 00 19:33 Lag1 5 1 17 -17 +- 210 0 +- 159 1
7105 6 Jul 00 20:45 Lag2 9 0 4 5 +- 37 4 +- 42 1
7105 7 Jul 00 01:10 Lag2 12 0 17 0 +- 100 9 +- 57 1
7105 7 Jul 00 18:17 Lag1 13 0 9 7 +- 34 1 +- 24 2
7105 7 Jul 00 21:45 Lag1 14 0 25 -27 +- 29 6 +- 22 3
7105 7 Jul 00 23:07 Lag2 6 0 33 -10 +- 107 22 +- 56 2
7105 8 Jul 00 09:59 Lag1 17 0 8 5 +- 24 -3 +- 13 3
7105 10 Jul 00 03:23 Lag2 12 0 9 -12 +- 42 4 +- 23 4
7105 11 Jul 00 23:25 Lag2 7 0 10 0 +- 39 -6 +- 28 5
7105 12 Jul 00 03:24 Lag2 7 0 10 -35 +- 124 -18 +- 73 2
7105 13 Jul 00 01:43 Lag2 7 0 4 -2 +- 36 4 +- 44 1
7105 13 Jul 00 10:35 Lag1 4 0 11 -3 +- 214 -5 +- 153 1
7105 15 Jul 00 23:47 Lag2 4 0 32 -21 +- 484 -32 +- 289 1

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 6 Jul 00 00:33 Lag1 2 0 17 23 +-1759 27 +-1195 0
7110 6 Jul 00 02:41 Lag2 10 0 14 -18 +- 58 3 +- 41 1
7110 6 Jul 00 06:33 Lag2 10 0 15 3 +- 37 5 +- 17 0
7110 6 Jul 00 10:41 Lag2 18 0 25 -25 +- 22 1 +- 24 2
7110 6 Jul 00 12:53 Lag1 21 0 17 -10 +- 20 -7 +- 11 3
7110 7 Jul 00 00:43 Lag2 5 0 24 -10 +- 104 -17 +- 127 1
7110 7 Jul 00 04:42 Lag2 2 0 19 -4 +-1547 -17 +-1089 0
7110 7 Jul 00 08:51 Lag2 14 0 24 -23 +- 25 -4 +- 22 8
7110 7 Jul 00 11:37 Lag1 19 0 28 -29 +- 23 3 +- 14 3
7110 8 Jul 00 02:51 Lag2 12 0 11 -5 +- 37 -5 +- 30 1
7110 8 Jul 00 06:49 Lag2 21 0 13 -11 +- 21 -1 +- 11 5
7110 8 Jul 00 10:17 Lag1 7 0 23 -22 +- 36 8 +- 33 2
7110 8 Jul 00 10:59 Lag2 13 0 14 -14 +- 27 10 +- 44 1
7110 8 Jul 00 14:07 Lag1 3 0 16 -12 +- 196 -1 +- 107 2
7110 9 Jul 00 05:09 Lag2 9 1 29 -19 +- 41 -22 +- 69 2
7110 10 Jul 00 03:30 Lag2 4 0 42 -21 +- 854 -10 +- 445 0
7110 10 Jul 00 11:05 Lag1 15 0 33 -35 +- 27 6 +- 18 4
7110 11 Jul 00 05:09 Lag2 14 0 38 -25 +- 25 -17 +- 15 7

Station 7124 (Papeete) (Position fixed, acc. 10 mm)
7124 6 Jul 00 03:45 Lag1 11 0 6 3 +- 28 -2 +- 26 4
7124 6 Jul 00 15:07 Lag2 22 0 13 -2 +- 21 -11 +- 19 3
7124 7 Jul 00 05:55 Lag1 8 0 31 31 +- 38 -3 +- 64 7
7124 7 Jul 00 12:27 Lag1 11 0 40 -38 +- 60 -1 +- 36 3
7124 7 Jul 00 12:59 Lag2 8 0 41 -1 +- 278 -20 +- 134 3
7124 10 Jul 00 15:11 Lag1 12 1 33 -33 +- 30 -2 +- 31 7
7124 10 Jul 00 15:51 Lag2 11 0 11 8 +- 36 2 +- 63 7

Station 7231 (Wuhan) (Position solved, acc. 150 mm)
7231 6 Jul 00 18:23 Lag2 3 0 39 -41 +-1182 2 +-1632 4
7231 7 Jul 00 16:19 Lag2 12 0 84 32 +- 163 -9 +- 123 80
7231 9 Jul 00 12:31 Lag2 10 3 2582 2560 +- 524 22 +- 504 12
7231 9 Jul 00 16:21 Lag2 20 0 31 -17 +- 103 17 +- 67 7
7231 9 Jul 00 20:09 Lag1 21 0 69 -12 +- 121 -25 +- 92 55
7231 10 Jul 00 14:41 Lag2 9 0 47 18 +- 246 21 +- 210 22
7231 10 Jul 00 18:37 Lag2 15 11 106 18 +- 279 260 +- 794 24
7231 13 Jul 00 12:55 Lag2 14 0 27 -23 +- 202 32 +- 173 14
7231 13 Jul 00 17:03 Lag2 12 0 27 -6 +- 201 27 +- 173 4
7231 14 Jul 00 15:15 Lag2 10 0 29 -21 +- 389 32 +- 261 2
7231 14 Jul 00 20:15 Lag1 10 0 16 -4 +- 193 -12 +- 161 11
7231 15 Jul 00 13:09 Lag2 4 0 106 -72 +- 322 -36 +-1138 84
7231 15 Jul 00 17:25 Lag2 5 0 107 179 +- 780 -133 +- 673 95
7231 15 Jul 00 19:00 Lag1 13 0 86 -54 +- 177 -3 +- 144 63

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 6 Jul 00 13:57 Lag2 19 0 24 21 +- 39 -5 +- 30 9
7237 6 Jul 00 18:03 Lag2 17 0 28 -24 +- 49 -5 +- 48 6
7237 7 Jul 00 12:17 Lag2 11 0 34 -2 +- 99 -20 +- 68 11
7237 7 Jul 00 16:03 Lag2 8 0 11 -5 +- 70 -1 +- 42 9
7237 8 Jul 00 14:11 Lag2 10 0 18 2 +- 57 -10 +- 36 6
7237 8 Jul 00 17:51 Lag1 8 0 81 -86 +- 135 7 +- 154 5
7237 8 Jul 00 18:17 Lag2 14 0 10 -5 +- 53 -1 +- 67 8
7237 9 Jul 00 12:25 Lag2 4 0 25 24 +- 88 6 +- 129 10
7237 9 Jul 00 16:33 Lag2 10 0 25 17 +- 88 5 +- 87 11
7237 10 Jul 00 14:34 Lag2 3 0 28 26 +- 103 -8 +- 163 2
7237 12 Jul 00 14:37 Lag2 15 0 23 19 +- 50 4 +- 33 7
7237 13 Jul 00 12:49 Lag2 15 0 16 -16 +- 55 5 +- 36 9
7237 13 Jul 00 16:57 Lag2 14 0 85 71 +- 73 14 +- 63 6
7237 15 Jul 00 13:13 Lag2 4 0 19 8 +- 93 49 +- 333 4

Station 7328 (Koganei) (Position fixed, acc. 20 mm)
7328 8 Jul 00 21:37 Lag1 6 0 14 -40 +- 299 23 +- 134 5
7328 10 Jul 00 10:53 Lag2 3 0 27 68 +- 511 -28 +- 340 1
7328 10 Jul 00 14:44 Lag2 10 0 36 30 +- 37 11 +- 45 3
7328 11 Jul 00 04:45 Lag1 5 0 14 -27 +- 98 -22 +- 82 3

Station 7403 (Arequipa) (Position fixed, acc. 10 mm)
7403 6 Jul 00 22:29 Lag1 15 0 9 8 +- 24 2 +- 18 3
7403 7 Jul 00 05:37 Lag2 14 0 17 16 +- 25 1 +- 29 4
7403 11 Jul 00 00:10 Lag1 7 1 27 26 +- 41 -10 +- 68 10
7403 11 Jul 00 06:03 Lag2 14 0 7 0 +- 25 3 +- 27 6
7403 11 Jul 00 06:29 Lag1 11 0 26 26 +- 29 9 +- 31 2
7403 11 Jul 00 14:41 Lag2 9 0 22 -20 +- 34 -20 +- 37 2
7403 11 Jul 00 22:51 Lag1 11 0 15 17 +- 36 -1 +- 31 1
7403 13 Jul 00 06:16 Lag2 14 0 12 11 +- 25 1 +- 25 3
7403 13 Jul 00 15:15 Lag2 3 0 26 -11 +- 197 -21 +- 295 3
7403 14 Jul 00 04:31 Lag2 11 0 15 -17 +- 35 6 +- 48 1
7403 14 Jul 00 05:57 Lag1 6 0 37 29 +- 56 -13 +- 78 4

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 6 Jul 00 01:45 Lag1 11 0 42 -42 +- 61 5 +- 100 4
7810 6 Jul 00 05:19 Lag1 18 0 41 2 +- 50 -21 +- 27 12
7810 6 Jul 00 08:51 Lag1 13 0 41 42 +- 59 -5 +- 48 7
7810 6 Jul 00 12:15 Lag1 15 0 19 21 +- 58 -3 +- 39 3
7810 6 Jul 00 15:45 Lag1 14 0 4 0 +- 55 -1 +- 45 4
7810 6 Jul 00 21:17 Lag2 12 0 39 38 +- 66 10 +- 53 19

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 13 Jul 00 20:11 Lag2 17 0 29 -5 +- 50 23 +- 39 6

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 6 Jul 00 21:31 Lag2 6 0 33 40 +- 111 -15 +- 169 3
7824 7 Jul 00 01:23 Lag2 17 0 60 -55 +- 36 -15 +- 31 8
7824 7 Jul 00 23:37 Lag2 2 0 77 -49 +- 818 -171 +-1104 0
7824 11 Jul 00 23:47 Lag2 12 0 58 23 +- 49 -32 +- 38 15
7824 12 Jul 00 08:10 Lag1 1 0 72 0 +- 0 0 +- 0 0
7824 12 Jul 00 14:41 Lag1 11 0 85 -78 +- 62 6 +- 44 45
7824 12 Jul 00 18:03 Lag2 7 0 58 -77 +- 150 19 +- 138 4
7824 12 Jul 00 22:12 Lag2 12 0 10 5 +- 68 -9 +- 48 3
7824 13 Jul 00 02:04 Lag2 7 0 29 -30 +- 100 -55 +- 134 17
7824 13 Jul 00 20:05 Lag2 17 0 20 -21 +- 39 7 +- 37 4
7824 14 Jul 00 08:42 Lag1 8 0 348 -215 +- 58 -208 +- 63 44

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 6 Jul 00 08:45 Lag1 17 0 57 55 +- 30 11 +- 21 5
7835 7 Jul 00 07:23 Lag1 10 0 26 49 +- 88 17 +- 52 1
7835 7 Jul 00 19:37 Lag2 17 0 17 0 +- 61 10 +- 36 1
7835 8 Jul 00 17:46 Lag2 2 0 9 -72 +- 868 77 +- 855 0
7835 8 Jul 00 21:41 Lag2 17 0 5 1 +- 36 -4 +- 27 2
7835 9 Jul 00 19:53 Lag2 3 0 5 -3 +- 151 -7 +- 534 0
7835 11 Jul 00 20:03 Lag2 8 0 8 -8 +- 56 0 +- 42 2
7835 12 Jul 00 08:03 Lag1 6 0 25 -39 +- 292 7 +- 151 1
7835 12 Jul 00 22:03 Lag2 14 0 15 -15 +- 34 -1 +- 32 2
7835 14 Jul 00 00:03 Lag2 22 0 18 -16 +- 26 -4 +- 20 7
7835 14 Jul 00 01:39 Lag1 4 0 62 66 +- 197 -6 +- 336 1
7835 14 Jul 00 18:21 Lag2 10 0 19 -24 +- 60 7 +- 52 5
7835 15 Jul 00 13:55 Lag1 10 0 7 0 +- 44 -4 +- 26 3
7835 15 Jul 00 20:31 Lag2 10 0 25 -23 +- 46 -5 +- 55 1

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 6 Jul 00 21:29 Lag2 8 0 15 13 +- 44 -13 +- 72 2
7836 10 Jul 00 21:55 Lag2 13 0 20 -8 +- 40 -10 +- 34 9

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 7 Jul 00 12:15 Lag2 10 0 27 28 +- 100 -1 +- 105 6
7837 7 Jul 00 16:17 Lag2 4 0 3543 -30 +- 376 3270 +- 350 6
7837 8 Jul 00 14:23 Lag2 10 0 2251 -2 +- 55 3262 +- 79 4
7837 10 Jul 00 18:43 Lag1 12 0 59 -47 +- 58 -18 +- 59 5
7837 11 Jul 00 12:45 Lag2 14 0 11 -10 +- 84 0 +- 67 6
7837 14 Jul 00 15:01 Lag2 11 0 49 -38 +- 56 -3 +- 40 28
7837 15 Jul 00 13:03 Lag2 12 0 42 -41 +- 50 0 +- 48 6
7837 15 Jul 00 17:15 Lag2 10 0 22 19 +- 62 5 +- 89 3
7837 15 Jul 00 18:51 Lag1 19 0 42 -27 +- 43 -15 +- 28 8

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 9 Jul 00 12:21 Lag2 14 1 117 -79 +- 47 -97 +- 44 87

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 10 Jul 00 06:41 Lag1 15 0 3 0 +- 24 -1 +- 12 2
7839 10 Jul 00 10:17 Lag1 14 0 23 23 +- 25 -4 +- 20 2
7839 10 Jul 00 13:39 Lag1 18 0 36 12 +- 22 -19 +- 12 2
7839 10 Jul 00 13:41 Lag2 19 0 27 20 +- 22 9 +- 15 1
7839 11 Jul 00 20:05 Lag2 9 0 30 24 +- 40 5 +- 25 2
7839 13 Jul 00 19:59 Lag2 15 0 47 21 +- 26 16 +- 13 4
7839 14 Jul 00 00:03 Lag2 23 0 7 5 +- 20 0 +- 16 4
7839 14 Jul 00 01:13 Lag1 13 0 83 96 +- 42 16 +- 37 4

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 7 Jul 00 19:19 Lag2 16 0 28 10 +- 32 13 +- 20 3
7840 7 Jul 00 23:21 Lag2 15 0 11 -11 +- 27 0 +- 19 2
7840 10 Jul 00 10:41 Lag1 5 0 6 3 +- 224 -5 +- 135 0
7840 11 Jul 00 05:49 Lag1 7 0 19 -28 +- 105 6 +- 63 4
7840 11 Jul 00 19:45 Lag2 15 0 14 9 +- 28 5 +- 17 5
7840 11 Jul 00 23:48 Lag2 18 0 22 -11 +- 25 -14 +- 20 2
7840 14 Jul 00 05:23 Lag1 4 0 17 -31 +- 522 6 +- 234 2
7840 14 Jul 00 22:21 Lag2 13 0 19 -10 +- 40 -7 +- 29 1
7840 15 Jul 00 20:25 Lag2 13 0 5 4 +- 41 -4 +- 26 2

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 6 Jul 00 08:46 Lag1 16 0 45 30 +- 28 16 +- 18 4
7845 6 Jul 00 12:03 Lag1 22 0 25 -19 +- 23 8 +- 12 5
7845 6 Jul 00 13:13 Lag2 13 0 26 23 +- 30 -9 +- 30 4
7845 6 Jul 00 15:37 Lag1 5 0 9 -10 +- 73 -7 +- 44 5
7845 7 Jul 00 07:21 Lag1 19 0 31 4 +- 25 19 +- 15 4
7845 7 Jul 00 14:11 Lag1 18 0 35 -35 +- 25 -1 +- 13 4
7845 7 Jul 00 15:11 Lag2 21 0 27 -24 +- 23 4 +- 13 10
7845 8 Jul 00 16:26 Lag1 15 0 34 -16 +- 27 -21 +- 19 5
7845 8 Jul 00 17:15 Lag2 26 0 46 -33 +- 21 16 +- 12 14
7845 8 Jul 00 21:34 Lag2 9 0 16 -12 +- 67 2 +- 58 6
7845 13 Jul 00 09:42 Lag1 3 0 54 -74 +- 709 -10 +- 364 4

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 8 Jul 00 01:15 Lag2 13 0 43 5 +- 37 31 +- 25 2
7849 8 Jul 00 05:37 Lag2 1 0 30 0 +- 0 0 +- 0 0
7849 8 Jul 00 11:31 Lag1 8 0 11 8 +- 43 -4 +- 51 3
7849 8 Jul 00 14:58 Lag1 1 0 14 0 +- 0 0 +- 0 0
7849 8 Jul 00 15:44 Lag2 1 0 16 0 +- 0 0 +- 0 0
7849 9 Jul 00 13:31 Lag1 6 0 18 -1 +- 119 -15 +- 99 7
7849 9 Jul 00 17:01 Lag1 8 0 9 -9 +- 35 -4 +- 42 1
7849 9 Jul 00 17:18 Lag2 11 0 10 6 +- 29 -6 +- 23 4
7849 9 Jul 00 20:43 Lag1 5 0 31 -28 +- 58 -10 +- 177 5
7849 9 Jul 00 21:21 Lag2 16 0 25 -18 +- 27 9 +- 24 4
7849 10 Jul 00 05:21 Lag1 17 0 16 -15 +- 23 -4 +- 18 3
7849 10 Jul 00 12:17 Lag1 9 0 21 13 +- 36 -14 +- 48 3
7849 10 Jul 00 15:15 Lag2 8 0 18 1 +- 37 -11 +- 23 2
7849 10 Jul 00 15:55 Lag1 4 0 8 3 +- 292 -6 +- 188 4
7849 10 Jul 00 19:01 Lag1 1 0 0 0 +- 0 0 +- 0 0
7849 10 Jul 00 19:18 Lag2 20 0 7 2 +- 21 -3 +- 13 3
7849 10 Jul 00 23:31 Lag2 15 0 42 0 +- 24 21 +- 13 10
7849 11 Jul 00 04:19 Lag1 2 0 4 116 +-1823 -151 +-2332 0
7849 11 Jul 00 08:07 Lag1 2 0 13 244 +-4312 -83 +-1560 0
7849 11 Jul 00 11:03 Lag1 8 0 9 7 +- 35 3 +- 35 3
7849 11 Jul 00 13:45 Lag2 4 0 38 -37 +- 49 -20 +- 344 2
7849 11 Jul 00 14:23 Lag1 5 0 10 14 +- 64 12 +- 106 1
7849 11 Jul 00 17:23 Lag2 12 0 9 4 +- 27 -5 +- 17 1
7849 11 Jul 00 18:03 Lag1 3 0 29 -23 +- 243 30 +- 143 0
7849 11 Jul 00 21:38 Lag2 7 0 10 -2 +- 145 -9 +- 109 1
7849 12 Jul 00 09:37 Lag1 7 0 7 2 +- 87 -2 +- 58 3
7849 13 Jul 00 04:01 Lag2 10 0 18 18 +- 31 16 +- 47 2
7849 13 Jul 00 04:47 Lag1 17 0 26 25 +- 23 -10 +- 20 3
7849 13 Jul 00 08:27 Lag1 14 0 17 -17 +- 31 2 +- 21 8
7849 13 Jul 00 11:53 Lag1 3 0 15 16 +- 67 85 +- 429 5
7849 13 Jul 00 13:55 Lag2 5 0 22 -21 +- 43 -7 +- 119 6
7849 13 Jul 00 15:02 Lag1 11 0 26 23 +- 29 14 +- 24 3
7849 13 Jul 00 17:49 Lag2 10 0 13 12 +- 31 1 +- 32 4
7849 13 Jul 00 18:35 Lag1 10 0 53 -40 +- 31 26 +- 33 4
7849 13 Jul 00 21:59 Lag2 12 0 8 6 +- 28 -1 +- 22 5
7849 14 Jul 00 02:02 Lag2 11 0 33 6 +- 37 17 +- 23 6
7849 14 Jul 00 07:05 Lag1 9 0 13 -13 +- 35 0 +- 21 1
7849 14 Jul 00 10:33 Lag1 10 0 41 -36 +- 38 -6 +- 36 3
7849 14 Jul 00 14:09 Lag1 1 0 21 0 +- 0 0 +- 0 0
7849 14 Jul 00 15:47 Lag2 3 0 42 -17 +- 534 15 +- 336 1
7849 14 Jul 00 17:07 Lag1 6 0 42 -34 +- 159 4 +- 82 6
7849 14 Jul 00 20:02 Lag2 10 0 17 19 +- 47 -21 +- 39 3
7849 14 Jul 00 23:59 Lag2 7 0 5 0 +- 77 2 +- 38 1
7849 15 Jul 00 05:45 Lag1 14 0 21 1 +- 35 -13 +- 22 5
7849 15 Jul 00 09:05 Lag1 17 0 32 -30 +- 23 -7 +- 16 5
7849 15 Jul 00 12:29 Lag1 6 0 26 -13 +- 39 -20 +- 40 5
7849 15 Jul 00 15:41 Lag1 18 0 8 0 +- 22 -2 +- 11 6
7849 15 Jul 00 18:05 Lag2 16 0 11 9 +- 30 1 +- 24 1
7849 15 Jul 00 19:27 Lag1 4 0 42 -41 +- 139 1 +- 189 3
7849 15 Jul 00 22:17 Lag2 11 0 14 6 +- 28 -13 +- 30 2

Station 7939 (Matera) (Position fixed, acc. 120 mm)
7939 6 Jul 00 01:48 Lag1 10 0 278 -206 +- 119 -100 +- 146 152
7939 7 Jul 00 19:37 Lag2 7 1 164 -213 +- 296 93 +- 152 123
7939 13 Jul 00 20:05 Lag2 13 0 167 0 +- 105 -4 +- 53 166
7939 14 Jul 00 00:09 Lag2 21 0 125 -83 +- 81 36 +- 69 87

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 6 Jul 00 08:43 Lag1 8 1 17 10 +- 79 3 +- 61 15
8834 6 Jul 00 12:17 Lag1 8 0 36 -35 +- 34 16 +- 43 2
8834 6 Jul 00 15:49 Lag1 6 0 30 -28 +- 46 3 +- 82 5
8834 6 Jul 00 17:24 Lag2 8 0 38 -39 +- 37 21 +- 37 11
8834 6 Jul 00 21:33 Lag2 11 0 55 -36 +- 39 -18 +- 32 9
8834 7 Jul 00 01:30 Lag2 8 1 90 -86 +- 45 -12 +- 95 5
8834 7 Jul 00 14:25 Lag1 13 0 63 -73 +- 36 13 +- 21 18
8834 7 Jul 00 15:29 Lag2 9 0 54 -55 +- 32 12 +- 42 5
8834 12 Jul 00 18:03 Lag2 14 0 44 -46 +- 27 19 +- 24 10
8834 12 Jul 00 22:07 Lag2 12 0 61 -61 +- 27 -3 +- 31 3
8834 13 Jul 00 02:38 Lag1 8 0 17 -27 +- 119 -7 +- 73 4
8834 13 Jul 00 09:41 Lag1 5 0 55 -84 +- 258 -16 +- 140 2
8834 13 Jul 00 13:11 Lag1 17 0 45 -44 +- 23 7 +- 14 14
--------------------------------------------------------------------------------

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 - 000702 0/ 4/ 0 0/ 46/ 0 50
1884 RIGLAS 000412 - 000716 0/ 2/ 0 0/ 45/ 8 55
1893 CRMLAS 000508 - 000710 0/ 0/ 0 0/ 17/ 0 17
7080 MLRS25 000404 - 000719 49/ 15/ 11 26/ 57/ 6 164
7090 ML0514 000401 - 000719 31/144/ 16 90/ 60/ 9 350
7105 ML0725 000401 - 000718 32/ 10/ 6 15/ 66/ 5 134
7110 ML0414 000401 - 000719 67/ 35/ 12 25/122/ 11 272
7124 ML0819 000403 - 000718 2/ 45/ 2 3/ 25/ 5 82
7231 WUHA01 000426 - 000717 0/ 7/ 0 0/ 45/ 1 53
7237 CHALAS 000401 - 000715 0/ 8/ 0 0/ 71/ 0 79
7249 BEJLAS 000404 - 000610 0/ 3/ 0 0/ 35/ 0 38
7328 KOGLAS 000401 - 000716 12/ 2/ 0 4/ 3/ 0 21
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 - 000718 2/ 24/ 2 9/ 19/ 1 57
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 - 000717 107/ 5/ 8 20/ 53/ 11 204
7811 POLLAS 000405 - 000713 0/ 1/ 0 0/ 40/ 0 41
7820 YSLR01 000401 - 000703 0/ 10/ 1 0/ 30/ 0 41
7824 SPNLAS 000401 - 000718 21/ 18/ 5 4/ 85/ 2 135
7831 HELLAS 000621 - 000628 0/ 0/ 0 0/ 4/ 0 4
7835 GRASSE 000401 - 000718 48/ 10/ 3 19/ 61/ 7 148
7836 GFZLAS 000403 - 000710 6/ 5/ 3 3/ 50/ 1 68
7837 CHILAS 000405 - 000717 0/ 14/ 3 0/ 39/ 1 57
7838 SHOLAS 000406 - 000716 5/ 10/ 1 0/ 29/ 1 46
7839 AUSLAS 000401 - 000717 59/ 14/ 4 15/ 65/ 10 167
7840 RGOLAS 000401 - 000719 111/ 7/ 3 31/ 50/ 15 217
7845 GRASLL 000405 - 000717 68/ 0/ 3 20/ 23/ 1 115
7849 MSLO01 000401 - 000718 44/174/ 22 126/ 73/ 14 453
7939 SAO102 000504 - 000714 0/ 1/ 0 0/ 23/ 0 24
8834 WLRS01 000401 - 000718 129/ 3/ 5 27/ 59/ 13 236
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
710.0 106.1 +/- 0.1 272.4 +/- 0.1 -31795.23 +/- 0.01
713.0 104.1 +/- 0.1 270.1 +/- 0.1 -31796.28 +/- 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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