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SLR-Report No.112

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Date:2000-05-30 14:18:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 112: Delft QL Report Week 22, 2000
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2000-05-30 14:18:00 UTC Message No. 112
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report Week 22, 2000


WEGENER-2 IERS


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


WEEK 22, 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, May 29, 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@lr.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,
May 30, 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) 000519 - 000528 - 13
1884 Riga, Latvia 000522 - 000526 - 3
1893 Kazivili, Crimea, Ukraine 000519 - 000522 - 2
7080 McDonald Obs., Fort Davis, TX 000524 - 000529 10 11
7090 Yarragadee, Australia 000522 - 000529 15 12
7105 Greenbelt, Maryland 000518 - 000526 3 6
7110 Monument Peak, California 000522 - 000529 10 17
7124 Papeete, Tahiti 000523 - 000526 7 4
7231 Wuhan, China (new) 000521 - 000522 - 2
7237 Changchun, China 000520 - 000528 - 2
7249 Beijing, China 000522 - 000528 - 3
7328 Koganei, Japan 000529 - 000529 1 -
7335 Kashima, Japan 000523 - 000526 3 -
7403 Arequipa, Peru (TLRS-3) 000523 - 000523 1 2
7548 Cagliari, Italy 000519 - 000519 - 1
7810 Zimmerwald, Switzerland 000519 - 000528 22 14
7811 Borowiec, Poland 000519 - 000526 - 3
7820 Kunming, China 000521 - 000522 1 1
7824 San Fernando, Spain 000520 - 000529 5 12
7835 Grasse, France 000518 - 000529 19 17
7837 Shanghai Observatory, China 000523 - 000527 - 2
7838 Simosato Observatory, Japan 000524 - 000524 - 2
7839 Graz, Austria 000520 - 000525 10 11
7840 Herstmonceux, United Kingdom 000519 - 000528 12 5
7845 Grasse, France (LLR) 000519 - 000529 15 8
7849 Mount Stromlo, Australia 000519 - 000528 27 23
7939 Matera, Italy 000524 - 000524 - 1
8834 Wettzell, Germany 000519 - 000529 9 9
------ ------ --- ---
TOTAL 000518 - 000529 170 186
------------------------------------------------------------------------------


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, May 18, 2000, to Sat, May 27, 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 18 26
Number of Passes 187/187 205/205
Number of Normal Points 2113/2063 2620/2562
RMS of Fit (mm) 30 40
-----------------------------------------------------------------------


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 19 May 00 16:18 Lag2 7 0 60 -86 +- 399 31 +- 320 12
1864 20 May 00 18:17 Lag2 9 0 89 -91 +- 208 22 +- 169 13
1864 21 May 00 16:16 Lag2 13 0 82 -75 +- 169 18 +- 111 28
1864 21 May 00 20:26 Lag2 11 0 65 -63 +- 183 -4 +- 154 17
1864 22 May 00 18:26 Lag2 10 0 60 -36 +- 191 25 +- 135 31
1864 22 May 00 22:58 Lag2 4 0 14 -20 +- 775 9 +- 972 5
1864 23 May 00 16:29 Lag2 7 0 97 -100 +- 250 15 +- 129 29
1864 23 May 00 20:41 Lag2 10 0 83 -74 +- 192 23 +- 143 28
1864 24 May 00 18:43 Lag2 11 0 90 -88 +- 190 37 +- 144 20
1864 25 May 00 16:43 Lag2 9 0 100 -81 +- 207 26 +- 139 23
1864 25 May 00 21:19 Lag2 4 0 64 -134 +-1693 59 +-1376 10
1864 26 May 00 18:57 Lag2 10 0 46 -2 +- 194 -18 +- 147 38

Station 1884 (Riga) (Position fixed, acc. 100 mm)
1884 22 May 00 22:15 Lag2 18 0 33 15 +- 74 24 +- 56 3
1884 24 May 00 00:23 Lag2 21 0 53 -42 +- 68 22 +- 47 5
1884 26 May 00 22:43 Lag2 22 0 4 2 +- 67 1 +- 44 2

Station 1893 (Kazivili) (Position solved, acc. 100 mm)
1893 19 May 00 20:31 Lag2 3 0 16 -132 +-6480 64 +-2851 3
1893 22 May 00 18:41 Lag2 5 0 23 137 +-1002 -83 +- 566 7

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 18 May 00 03:18 Lag2 8 0 20 58 +- 260 -18 +- 120 1
7080 18 May 00 07:00 Lag2 5 0 8 10 +- 138 4 +- 142 4
7080 18 May 00 11:14 Lag2 4 0 29 26 +- 616 -1 +- 354 2
7080 19 May 00 05:25 Lag2 7 0 30 11 +- 182 10 +- 98 2
7080 19 May 00 11:31 Lag1 4 0 24 -21 +- 96 10 +- 238 2
7080 20 May 00 00:58 Lag1 20 0 24 15 +- 24 -11 +- 14 6
7080 20 May 00 03:01 Lag2 10 0 62 29 +- 84 -21 +- 53 1
7080 21 May 00 01:21 Lag2 16 0 40 46 +- 34 -9 +- 27 3
7080 21 May 00 03:23 Lag1 10 0 28 -18 +- 40 -20 +- 60 2
7080 24 May 00 02:47 Lag1 13 0 29 -31 +- 35 4 +- 36 3
7080 24 May 00 03:31 Lag2 17 0 14 8 +- 26 -7 +- 20 2
7080 24 May 00 07:52 Lag2 13 0 18 12 +- 40 -17 +- 29 2
7080 24 May 00 11:41 Lag1 6 0 11 13 +- 95 1 +- 116 1
7080 24 May 00 12:25 Lag2 10 0 9 -31 +- 172 14 +- 88 6
7080 24 May 00 21:53 Lag1 2 0 28 55 +- 983 22 +- 832 0
7080 25 May 00 01:26 Lag1 6 0 33 -31 +- 46 -4 +- 78 5
7080 25 May 00 01:49 Lag2 4 0 4 7 +- 95 13 +- 202 1
7080 25 May 00 05:43 Lag2 11 0 10 14 +- 52 8 +- 51 2
7080 25 May 00 14:18 Lag1 1 0 39 0 +- 0 0 +- 0 0
7080 26 May 00 03:40 Lag2 16 0 15 16 +- 32 9 +- 23 4
7080 26 May 00 16:01 Lag1 8 0 12 7 +- 44 -7 +- 54 2
7080 26 May 00 22:33 Lag1 4 0 30 19 +- 527 26 +- 282 2
7080 27 May 00 01:55 Lag2 3 0 7 -11 +- 705 -3 +- 463 2
7080 27 May 00 02:09 Lag1 6 0 32 41 +- 86 13 +- 100 2
7080 27 May 00 06:00 Lag2 19 0 47 20 +- 25 -43 +- 23 5

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 18 May 00 09:23 Lag2 21 0 9 6 +- 21 0 +- 10 7
7090 18 May 00 10:43 Lag1 25 0 35 -23 +- 19 13 +- 9 7
7090 18 May 00 14:19 Lag1 13 0 31 18 +- 26 19 +- 22 2
7090 18 May 00 17:43 Lag1 4 0 24 -18 +- 88 16 +- 200 1
7090 18 May 00 20:53 Lag1 18 0 21 -20 +- 23 -1 +- 11 3
7090 18 May 00 23:15 Lag2 17 0 77 76 +- 24 -39 +- 21 9
7090 19 May 00 00:39 Lag1 5 0 29 35 +- 52 -25 +- 59 2
7090 20 May 00 05:35 Lag2 17 0 17 -16 +- 23 -6 +- 25 1
7090 20 May 00 09:39 Lag2 22 0 23 4 +- 20 -12 +- 10 3
7090 20 May 00 11:29 Lag1 14 0 34 -20 +- 52 7 +- 26 4
7090 20 May 00 15:07 Lag1 12 0 9 3 +- 27 10 +- 32 1
7090 21 May 00 07:43 Lag2 21 0 24 -4 +- 22 15 +- 15 1
7090 21 May 00 10:07 Lag1 11 0 72 -38 +- 102 17 +- 50 0
7090 21 May 00 11:49 Lag2 14 0 16 21 +- 33 13 +- 29 2
7090 21 May 00 13:45 Lag1 3 0 43 64 +- 925 58 +- 498 1
7090 22 May 00 08:59 Lag1 13 0 34 -32 +- 27 24 +- 31 3
7090 22 May 00 10:01 Lag2 21 0 19 18 +- 22 -8 +- 13 3
7090 22 May 00 12:21 Lag1 13 0 31 -6 +- 34 16 +- 22 2
7090 22 May 00 16:03 Lag1 6 0 13 -19 +- 91 9 +- 113 0
7090 22 May 00 19:07 Lag1 12 0 16 -17 +- 28 2 +- 22 1
7090 22 May 00 22:25 Lag1 18 0 27 15 +- 22 -12 +- 11 5
7090 22 May 00 23:27 Lag2 28 0 45 17 +- 18 -24 +- 10 6
7090 23 May 00 03:51 Lag2 20 0 16 -5 +- 23 -11 +- 20 3
7090 24 May 00 06:04 Lag2 9 0 18 -16 +- 32 5 +- 27 1
7090 24 May 00 09:39 Lag1 14 0 42 -23 +- 31 18 +- 24 3
7090 24 May 00 10:09 Lag2 19 0 24 24 +- 22 1 +- 13 3
7090 24 May 00 13:07 Lag1 21 0 21 -20 +- 20 2 +- 12 3
7090 25 May 00 08:29 Lag2 8 0 43 -2 +- 47 23 +- 24 2
7090 25 May 00 08:39 Lag1 5 0 17 0 +- 150 20 +- 171 1
7090 25 May 00 11:47 Lag1 12 0 22 -16 +- 29 5 +- 18 4
7090 25 May 00 12:27 Lag2 8 0 41 33 +- 35 22 +- 49 0
7090 25 May 00 15:21 Lag1 8 0 24 -23 +- 37 4 +- 65 1
7090 26 May 00 06:17 Lag2 18 0 44 -41 +- 23 16 +- 16 5
7090 26 May 00 10:27 Lag2 8 0 47 43 +- 34 18 +- 22 8
7090 26 May 00 10:29 Lag1 11 0 55 -11 +- 30 27 +- 14 6
7090 26 May 00 13:59 Lag1 12 0 30 12 +- 27 24 +- 23 2
7090 26 May 00 20:46 Lag1 10 0 34 -53 +- 48 20 +- 27 5
7090 27 May 00 04:30 Lag2 4 0 95 -81 +- 49 -48 +- 76 7

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 18 May 00 07:25 Lag2 7 0 25 20 +- 36 16 +- 43 8
7105 19 May 00 01:13 Lag2 12 0 37 40 +- 30 9 +- 29 2
7105 25 May 00 02:31 Lag2 3 0 55 -133 +-2789 74 +-1110 4
7105 25 May 00 06:15 Lag2 3 1 1 0 +- 254 -2 +- 966 0
7105 26 May 00 04:03 Lag2 15 0 16 1 +- 25 10 +- 16 2
7105 26 May 00 08:09 Lag2 8 0 7 -9 +- 40 -3 +- 25 1
7105 26 May 00 15:49 Lag1 9 0 16 -4 +- 32 -20 +- 43 1
7105 26 May 00 19:20 Lag1 3 1 6 14 +- 294 -25 +- 380 0
7105 26 May 00 22:53 Lag1 7 0 9 -14 +- 195 2 +- 91 1

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 18 May 00 00:31 Lag1 7 0 4 4 +- 48 -3 +- 54 2
7110 18 May 00 03:14 Lag2 5 0 17 56 +- 282 -24 +- 174 1
7110 18 May 00 04:01 Lag1 12 0 13 10 +- 35 -19 +- 38 1
7110 18 May 00 16:49 Lag1 4 0 14 -85 +- 858 39 +- 339 1
7110 19 May 00 02:31 Lag1 19 0 21 14 +- 24 -14 +- 15 2
7110 19 May 00 04:47 Lag2 14 0 8 8 +- 25 1 +- 14 1
7110 19 May 00 09:01 Lag2 22 0 10 -7 +- 20 -4 +- 14 3
7110 19 May 00 13:28 Lag2 11 0 40 -33 +- 37 -5 +- 20 2
7110 19 May 00 15:21 Lag1 9 0 9 -47 +- 164 18 +- 67 3
7110 20 May 00 07:01 Lag2 26 0 30 5 +- 18 -20 +- 13 1
7110 20 May 00 11:15 Lag2 18 0 57 -27 +- 22 -26 +- 12 12
7110 20 May 00 13:35 Lag1 15 0 46 -45 +- 25 -3 +- 14 6
7110 21 May 00 03:15 Lag1 18 0 21 -9 +- 22 -15 +- 18 4
7110 21 May 00 05:05 Lag2 20 0 18 13 +- 21 -7 +- 14 3
7110 21 May 00 09:17 Lag2 18 0 15 -13 +- 25 -12 +- 21 5
7110 21 May 00 12:15 Lag1 9 0 48 -42 +- 34 14 +- 44 3
7110 21 May 00 13:35 Lag2 12 0 33 -26 +- 28 -7 +- 15 5
7110 21 May 00 15:51 Lag1 11 0 35 -24 +- 33 20 +- 17 5
7110 22 May 00 07:15 Lag2 21 0 34 5 +- 20 -25 +- 15 2
7110 22 May 00 11:29 Lag2 17 0 53 -51 +- 25 -28 +- 17 16
7110 22 May 00 14:35 Lag1 9 0 36 -42 +- 40 8 +- 25 7
7110 23 May 00 04:17 Lag1 9 0 28 -23 +- 40 -14 +- 69 1
7110 23 May 00 05:25 Lag2 20 0 26 12 +- 22 -18 +- 15 4
7110 23 May 00 09:33 Lag2 14 0 23 -37 +- 44 -30 +- 36 2
7110 23 May 00 13:51 Lag2 3 0 7 20 +- 588 19 +- 445 2
7110 24 May 00 02:55 Lag1 13 0 18 -30 +- 45 13 +- 31 2
7110 24 May 00 03:21 Lag2 17 0 34 -17 +- 23 -14 +- 11 3
7110 24 May 00 12:19 Lag2 8 1 42 -71 +- 190 16 +- 110 1
7110 25 May 00 01:35 Lag1 7 0 32 -38 +- 75 5 +- 61 2
7110 25 May 00 02:07 Lag2 3 0 11 -87 +-1246 44 +- 708 5
7110 25 May 00 05:29 Lag2 23 0 10 1 +- 20 -6 +- 13 3
7110 25 May 00 10:09 Lag2 3 0 25 -23 +- 73 18 +- 374 1
7110 25 May 00 14:05 Lag1 9 0 50 -32 +- 64 -12 +- 42 6
7110 26 May 00 16:03 Lag1 16 0 19 -18 +- 25 0 +- 16 6
7110 27 May 00 01:57 Lag2 6 0 70 -72 +- 62 -3 +- 97 1
7110 27 May 00 02:09 Lag1 10 0 21 14 +- 30 11 +- 19 2
7110 27 May 00 05:47 Lag2 22 0 60 14 +- 22 -41 +- 14 11
7110 27 May 00 10:09 Lag2 16 0 92 -40 +- 26 -42 +- 16 7
7110 27 May 00 14:33 Lag1 11 0 30 -29 +- 36 0 +- 14 10

Station 7124 (Papeete) (Position fixed, acc. 10 mm)
7124 18 May 00 13:30 Lag1 12 0 20 -19 +- 28 7 +- 26 7
7124 18 May 00 15:43 Lag2 7 0 68 68 +- 40 0 +- 102 8
7124 19 May 00 04:17 Lag2 16 0 31 -29 +- 24 4 +- 18 6
7124 19 May 00 05:46 Lag1 16 0 10 -7 +- 30 -1 +- 18 4
7124 23 May 00 04:47 Lag2 15 1 15 -14 +- 25 -2 +- 21 2
7124 23 May 00 07:14 Lag1 14 1 36 -31 +- 26 -20 +- 28 4
7124 23 May 00 13:49 Lag1 12 0 9 -10 +- 37 0 +- 29 1
7124 24 May 00 06:01 Lag1 15 1 30 -27 +- 31 -2 +- 22 4
7124 24 May 00 15:49 Lag1 15 1 41 -39 +- 25 -5 +- 18 7
7124 24 May 00 16:26 Lag2 5 3 21 -63 +- 253 -174 +- 598 0
7124 25 May 00 04:43 Lag1 11 1 51 -33 +- 41 -15 +- 28 4
7124 25 May 00 05:13 Lag2 13 1 13 -20 +- 58 7 +- 39 4
7124 26 May 00 06:47 Lag1 7 1 9 -6 +- 50 7 +- 83 2
7124 26 May 00 13:20 Lag1 2 1 38 0 +- 0 0 +- 0 0
7124 26 May 00 16:23 Lag2 10 1 39 0 +- 38 -18 +- 30 31

Station 7231 (Wuhan) (Position solved, acc. 150 mm)
7231 21 May 00 16:46 Lag2 16 0 10 4 +- 154 1 +- 144 8
7231 22 May 00 14:59 Lag2 9 0 10 2 +- 588 -8 +- 375 1

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 20 May 00 14:31 Lag2 18 0 26 -14 +- 41 -15 +- 31 11

Station 7249 (Beijing) (Position fixed, acc. 50 mm)
7249 22 May 00 14:43 Lag2 14 0 46 -31 +- 46 -23 +- 37 7

Station 7335 (Kashima) (Position fixed, acc. 20 mm)
7335 23 May 00 08:19 Lag1 7 0 48 -58 +- 102 7 +- 69 2
7335 25 May 00 02:14 Lag1 6 0 37 -24 +- 60 -19 +- 72 5
7335 26 May 00 00:55 Lag1 8 0 12 -13 +- 44 9 +- 55 4

Station 7339 (Tateyama) (Position fixed, acc. 20 mm)
7339 18 May 00 07:53 Lag1 10 0 18 10 +- 34 -13 +- 34 1

Station 7403 (Arequipa) (Position fixed, acc. 10 mm)
7403 23 May 00 09:47 Lag1 14 0 36 33 +- 25 -8 +- 18 3
7403 23 May 00 10:44 Lag2 7 0 10 -3 +- 42 20 +- 78 3
7403 23 May 00 14:38 Lag2 4 0 38 38 +- 48 -1 +- 62 1

Station 7548 (Cagliari) (Position solved, acc. 70 mm)
7548 18 May 00 21:47 Lag2 3 0 30 0 +- 160 2 +- 87 30
7548 19 May 00 19:51 Lag2 7 4 17 48 +- 588 -34 +- 385 12

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 19 May 00 14:07 Lag1 14 0 34 33 +- 54 1 +- 32 8
7810 19 May 00 17:35 Lag1 11 2 14 -17 +- 207 -10 +- 113 12
7810 20 May 00 09:45 Lag1 8 0 40 -14 +- 236 -13 +- 128 12
7810 20 May 00 12:48 Lag1 14 6 36 27 +- 86 -37 +- 97 22
7810 20 May 00 16:11 Lag1 21 0 21 -8 +- 43 -8 +- 23 10
7810 20 May 00 17:57 Lag2 18 0 19 18 +- 47 -4 +- 43 5
7810 20 May 00 20:01 Lag1 12 0 54 -50 +- 58 -13 +- 91 11
7810 20 May 00 21:45 Lag2 28 0 43 -16 +- 37 21 +- 21 12
7810 21 May 00 01:55 Lag2 25 0 35 -9 +- 40 20 +- 25 10
7810 22 May 00 07:11 Lag1 3 0 20 115 +-2265 -56 +- 971 10
7810 22 May 00 10:10 Lag1 14 0 31 -27 +- 57 -7 +- 43 19
7810 22 May 00 13:32 Lag1 15 0 20 -7 +- 51 -10 +- 37 12
7810 22 May 00 18:29 Lag2 4 0 28 -20 +- 333 -11 +- 484 5
7810 22 May 00 22:07 Lag2 25 0 44 -33 +- 42 24 +- 25 7
7810 23 May 00 02:45 Lag2 9 0 28 42 +- 399 -9 +- 194 15
7810 23 May 00 05:13 Lag1 15 0 30 17 +- 70 -9 +- 48 10
7810 23 May 00 06:13 Lag2 18 0 60 -57 +- 47 -12 +- 38 12
7810 23 May 00 08:57 Lag1 5 0 19 -13 +- 93 -1 +- 54 14
7810 23 May 00 12:17 Lag1 18 0 18 -4 +- 48 -7 +- 31 12
7810 23 May 00 15:35 Lag1 14 0 54 53 +- 59 16 +- 26 22
7810 23 May 00 19:19 Lag1 16 0 82 -80 +- 50 16 +- 45 8
7810 23 May 00 20:14 Lag2 23 0 34 -17 +- 45 21 +- 27 11
7810 24 May 00 00:11 Lag2 27 0 43 11 +- 38 23 +- 22 8
7810 24 May 00 03:59 Lag1 11 0 57 53 +- 60 18 +- 82 11
7810 24 May 00 04:23 Lag2 18 0 33 -28 +- 48 -2 +- 34 14
7810 24 May 00 07:27 Lag1 15 0 14 0 +- 52 -5 +- 25 8
7810 24 May 00 11:01 Lag1 13 0 8 -7 +- 58 0 +- 39 5
7810 24 May 00 14:23 Lag1 16 0 45 35 +- 50 -21 +- 31 4
7810 24 May 00 17:49 Lag1 18 0 56 -58 +- 50 -10 +- 34 9
7810 24 May 00 22:31 Lag2 19 0 58 -10 +- 60 42 +- 39 3
7810 25 May 00 02:31 Lag2 4 0 26 13 +- 112 17 +- 70 10
7810 26 May 00 08:15 Lag1 18 0 17 -14 +- 47 -4 +- 24 4
7810 26 May 00 11:55 Lag1 8 0 13 -13 +- 86 5 +- 103 7
7810 27 May 00 17:23 Lag1 17 0 33 8 +- 53 -20 +- 31 8
7810 27 May 00 20:36 Lag2 22 0 36 12 +- 43 18 +- 25 6

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 19 May 00 23:57 Lag2 18 0 31 1 +- 47 24 +- 37 3
7811 23 May 00 20:23 Lag2 16 0 21 2 +- 50 16 +- 41 4
7811 26 May 00 22:41 Lag2 12 0 29 29 +- 84 0 +- 70 5

Station 7820 (Kunming) (Position solved, acc. 80 mm)
7820 21 May 00 16:37 Lag2 7 0 15 1 +- 100 26 +- 264 11
7820 22 May 00 13:11 Lag1 6 0 34 0 +- 113 16 +- 247 34

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 18 May 00 21:32 Lag2 1 0 76 0 +- 0 0 +- 0 0
7824 19 May 00 01:49 Lag2 6 0 81 61 +- 125 -30 +- 185 11
7824 20 May 00 20:11 Lag1 3 0 91 366 +- 885 -248 +- 778 20
7824 21 May 00 01:57 Lag2 5 0 103 152 +- 465 34 +- 322 1
7824 21 May 00 20:03 Lag2 4 0 84 38 +- 118 -114 +- 272 15
7824 22 May 00 20:43 Lag1 3 0 149 -399 +- 739 -635 +- 874 21
7824 22 May 00 21:50 Lag2 16 0 61 61 +- 42 -10 +- 28 24
7824 23 May 00 02:19 Lag2 12 0 70 65 +- 45 7 +- 39 12
7824 25 May 00 20:05 Lag1 11 0 30 27 +- 51 -4 +- 62 8
7824 25 May 00 20:30 Lag2 9 0 65 66 +- 63 -7 +- 68 16
7824 26 May 00 00:19 Lag2 19 0 26 23 +- 34 -6 +- 25 11
7824 26 May 00 04:47 Lag2 4 0 36 34 +- 283 -2 +- 328 1
7824 26 May 00 05:01 Lag1 5 0 7 9 +- 108 11 +- 222 4
7824 27 May 00 02:45 Lag2 16 0 43 -13 +- 37 -34 +- 33 8
7824 27 May 00 20:27 Lag2 3 0 159 196 +- 151 26 +- 77 30

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 18 May 00 08:37 Lag1 15 0 11 -9 +- 35 -6 +- 21 1
7835 18 May 00 19:13 Lag1 9 0 15 13 +- 51 -24 +- 69 3
7835 18 May 00 21:39 Lag2 18 0 35 -28 +- 29 14 +- 22 5
7835 19 May 00 07:11 Lag1 25 0 15 -12 +- 25 4 +- 12 6
7835 19 May 00 10:43 Lag1 18 0 19 4 +- 29 12 +- 20 1
7835 19 May 00 14:03 Lag1 19 0 18 16 +- 29 7 +- 18 3
7835 19 May 00 18:03 Lag1 6 0 17 12 +- 343 -14 +- 167 3
7835 19 May 00 19:43 Lag2 13 0 22 -19 +- 51 -23 +- 38 3
7835 19 May 00 23:39 Lag2 20 0 29 -25 +- 36 3 +- 23 5
7835 20 May 00 21:43 Lag2 28 0 17 -5 +- 23 6 +- 13 11
7835 21 May 00 18:29 Lag1 14 0 7 -7 +- 33 -2 +- 31 2
7835 21 May 00 19:53 Lag2 23 0 31 -15 +- 26 -16 +- 16 9
7835 21 May 00 23:55 Lag2 23 0 11 -8 +- 27 2 +- 18 5
7835 22 May 00 10:11 Lag1 13 0 30 -20 +- 42 10 +- 31 2
7835 22 May 00 16:59 Lag1 17 0 13 4 +- 32 -7 +- 20 2
7835 22 May 00 18:25 Lag2 4 0 30 -32 +- 131 6 +- 257 1
7835 22 May 00 22:07 Lag2 22 0 11 -7 +- 27 6 +- 18 3
7835 23 May 00 06:29 Lag2 11 0 15 -12 +- 45 -5 +- 59 1
7835 23 May 00 08:52 Lag1 13 0 10 -5 +- 38 4 +- 28 4
7835 24 May 00 00:43 Lag2 5 0 13 -12 +- 249 20 +- 200 2
7835 24 May 00 10:57 Lag1 15 0 23 -12 +- 32 11 +- 20 2
7835 24 May 00 14:13 Lag1 20 0 37 20 +- 29 -13 +- 17 2
7835 24 May 00 22:11 Lag2 28 0 36 0 +- 23 21 +- 13 4
7835 25 May 00 06:26 Lag1 7 0 13 28 +- 105 -14 +- 75 1
7835 25 May 00 06:41 Lag2 8 0 25 -25 +- 45 -4 +- 102 3
7835 26 May 00 08:15 Lag1 23 0 16 -4 +- 26 8 +- 13 2
7835 26 May 00 11:47 Lag1 10 0 14 -14 +- 41 5 +- 31 3
7835 26 May 00 15:25 Lag1 8 0 33 -21 +- 110 -8 +- 70 2
7835 26 May 00 18:38 Lag2 11 0 24 -24 +- 38 -1 +- 29 2
7835 26 May 00 18:53 Lag1 6 0 37 38 +- 53 -25 +- 77 3
7835 26 May 00 22:41 Lag2 13 0 20 4 +- 34 -20 +- 37 1
7835 27 May 00 20:27 Lag2 19 0 13 -3 +- 29 5 +- 14 3

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 20 May 00 12:27 Lag1 1 0 70 0 +- 0 0 +- 0 0
7837 20 May 00 14:27 Lag2 13 0 17 -12 +- 51 7 +- 54 7
7837 20 May 00 18:58 Lag2 9 0 12 -6 +- 90 -3 +- 109 9
7837 21 May 00 12:25 Lag2 20 0 37 -36 +- 42 1 +- 23 12
7837 21 May 00 16:45 Lag2 11 0 17 11 +- 55 6 +- 40 4
7837 23 May 00 13:05 Lag2 6 0 23 -48 +- 288 18 +- 196 4
7837 27 May 00 13:35 Lag2 8 0 60 -54 +- 281 66 +- 167 5

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 21 May 00 12:55 Lag2 9 0 21 23 +- 110 -6 +- 76 16
7838 24 May 00 15:09 Lag2 11 0 25 27 +- 42 17 +- 59 5
7838 24 May 00 19:13 Lag2 16 0 26 27 +- 38 20 +- 28 6

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 20 May 00 21:45 Lag2 30 0 31 16 +- 17 15 +- 9 2
7839 21 May 00 18:31 Lag1 13 0 6 -6 +- 26 -1 +- 30 1
7839 21 May 00 19:53 Lag2 28 0 17 14 +- 18 -4 +- 10 4
7839 22 May 00 13:37 Lag1 9 0 30 34 +- 37 -6 +- 19 5
7839 22 May 00 17:11 Lag1 8 0 14 12 +- 34 -8 +- 34 2
7839 22 May 00 18:25 Lag2 12 0 12 6 +- 43 5 +- 35 1
7839 22 May 00 22:07 Lag2 23 0 32 20 +- 20 14 +- 12 3
7839 23 May 00 02:13 Lag2 14 0 35 24 +- 27 10 +- 16 4
7839 23 May 00 06:17 Lag2 13 0 9 -8 +- 26 -2 +- 25 2
7839 23 May 00 15:43 Lag1 9 0 30 30 +- 33 0 +- 20 3
7839 23 May 00 16:37 Lag2 7 0 33 26 +- 54 15 +- 98 1
7839 23 May 00 19:23 Lag1 12 0 22 -21 +- 27 7 +- 35 3
7839 23 May 00 20:11 Lag2 24 0 26 12 +- 19 11 +- 10 2
7839 24 May 00 00:12 Lag2 23 0 42 27 +- 20 16 +- 10 6
7839 24 May 00 04:33 Lag2 15 0 10 10 +- 26 1 +- 25 1
7839 24 May 00 07:29 Lag1 16 0 27 26 +- 24 -1 +- 12 7
7839 24 May 00 11:07 Lag1 10 0 16 14 +- 44 1 +- 29 1
7839 25 May 00 06:05 Lag1 7 0 51 42 +- 36 -15 +- 20 7
7839 25 May 00 09:35 Lag1 12 0 30 17 +- 31 -13 +- 23 2
7839 25 May 00 13:01 Lag1 15 0 42 36 +- 24 -15 +- 18 1
7839 25 May 00 20:59 Lag2 10 0 74 32 +- 209 19 +- 94 1

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 18 May 00 05:09 Lag1 3 0 25 8 +- 347 -21 +- 461 4
7840 18 May 00 07:57 Lag2 2 0 114 -69 +- 550 -93 +-1127 0
7840 18 May 00 09:02 Lag1 3 0 25 4 +- 531 -16 +- 288 1
7840 18 May 00 21:37 Lag2 22 0 24 3 +- 23 15 +- 14 2
7840 19 May 00 10:45 Lag1 11 0 23 12 +- 32 9 +- 17 3
7840 19 May 00 14:11 Lag1 12 0 29 34 +- 40 8 +- 28 2
7840 19 May 00 19:55 Lag2 12 0 10 0 +- 32 -8 +- 27 2
7840 19 May 00 23:43 Lag2 20 0 13 2 +- 24 9 +- 16 3
7840 20 May 00 03:49 Lag2 24 0 32 -16 +- 22 -17 +- 14 1
7840 20 May 00 05:51 Lag1 16 0 15 0 +- 27 -10 +- 18 2
7840 20 May 00 09:43 Lag1 8 0 6 -11 +- 90 7 +- 57 4
7840 20 May 00 12:57 Lag1 14 0 19 20 +- 29 -3 +- 22 3
7840 20 May 00 16:20 Lag1 8 0 10 1 +- 81 -5 +- 54 2
7840 22 May 00 06:37 Lag1 6 0 15 55 +- 329 19 +- 152 2
7840 22 May 00 10:23 Lag1 11 0 11 -12 +- 39 8 +- 30 3
7840 22 May 00 13:51 Lag1 9 0 19 22 +- 48 -4 +- 43 1
7840 25 May 00 09:40 Lag1 16 0 26 -9 +- 27 -15 +- 16 2
7840 25 May 00 13:05 Lag1 17 0 27 14 +- 26 -15 +- 17 5
7840 25 May 00 16:37 Lag1 10 0 27 4 +- 34 -14 +- 18 3
7840 25 May 00 20:29 Lag2 15 0 35 -2 +- 27 25 +- 20 1
7840 27 May 00 07:11 Lag1 10 0 12 -8 +- 63 11 +- 40 2

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 18 May 00 08:36 Lag1 8 0 39 -50 +- 125 -6 +- 65 3
7845 18 May 00 15:27 Lag1 21 0 33 -31 +- 24 -3 +- 13 6
7845 18 May 00 18:59 Lag1 20 0 31 -3 +- 24 -23 +- 18 2
7845 18 May 00 21:39 Lag2 20 0 47 -46 +- 25 17 +- 13 9
7845 19 May 00 13:59 Lag1 25 0 17 -13 +- 21 4 +- 11 6
7845 19 May 00 17:27 Lag1 27 0 32 -11 +- 20 -14 +- 10 6
7845 19 May 00 19:47 Lag2 23 0 42 -22 +- 24 -15 +- 14 12
7845 22 May 00 00:11 Lag2 14 0 45 -46 +- 29 12 +- 28 6
7845 22 May 00 04:09 Lag2 21 0 39 -38 +- 23 -4 +- 16 9
7845 22 May 00 06:40 Lag1 17 0 28 -14 +- 26 11 +- 11 6
7845 22 May 00 17:19 Lag1 13 0 37 -19 +- 65 -9 +- 34 5
7845 22 May 00 18:11 Lag2 16 0 41 -38 +- 27 -8 +- 25 5
7845 22 May 00 22:05 Lag2 17 0 37 -33 +- 26 8 +- 15 6
7845 23 May 00 08:45 Lag1 23 0 41 -31 +- 22 12 +- 11 5
7845 23 May 00 15:38 Lag1 20 0 19 -17 +- 24 0 +- 13 6
7845 24 May 00 11:09 Lag1 13 0 36 -48 +- 42 18 +- 29 6
7845 24 May 00 14:13 Lag1 23 0 33 -9 +- 22 -16 +- 11 10
7845 25 May 00 06:05 Lag1 10 0 8 13 +- 93 8 +- 49 5
7845 25 May 00 09:39 Lag1 14 0 35 -36 +- 30 -5 +- 23 3
7845 25 May 00 16:49 Lag1 7 0 41 -7 +- 131 -19 +- 76 2
7845 25 May 00 20:25 Lag2 19 0 35 -28 +- 24 13 +- 16 8
7845 26 May 00 00:27 Lag2 25 0 36 -29 +- 21 13 +- 13 7
7845 26 May 00 04:41 Lag2 20 0 21 6 +- 24 14 +- 19 3
7845 26 May 00 08:13 Lag1 22 0 39 -25 +- 23 14 +- 12 6

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 18 May 00 01:25 Lag2 17 0 10 -8 +- 23 5 +- 21 3
7849 18 May 00 05:54 Lag2 8 0 29 13 +- 63 16 +- 59 1
7849 18 May 00 07:07 Lag1 17 0 31 -30 +- 23 -2 +- 21 4
7849 18 May 00 09:39 Lag2 4 0 52 -53 +- 55 -1 +- 33 4
7849 18 May 00 10:41 Lag1 9 0 5 -4 +- 45 -5 +- 38 1
7849 18 May 00 14:11 Lag1 7 0 13 11 +- 40 5 +- 53 2
7849 18 May 00 17:17 Lag1 11 0 13 -11 +- 40 1 +- 27 2
7849 19 May 00 03:33 Lag2 20 0 33 -1 +- 22 25 +- 16 3
7849 19 May 00 07:48 Lag2 18 0 22 -13 +- 23 13 +- 15 4
7849 19 May 00 09:13 Lag1 7 0 33 -13 +- 75 11 +- 42 2
7849 19 May 00 12:43 Lag1 5 0 6 27 +- 237 14 +- 148 2
7849 20 May 00 01:35 Lag2 4 0 41 -20 +- 562 -35 +- 325 2
7849 20 May 00 06:11 Lag2 12 0 3 -3 +- 66 1 +- 39 2
7849 20 May 00 10:13 Lag2 2 0 16 -3 +- 281 -17 +- 383 0
7849 20 May 00 11:27 Lag1 14 0 8 8 +- 25 0 +- 21 1
7849 20 May 00 14:49 Lag1 12 0 8 4 +- 27 -6 +- 29 3
7849 20 May 00 18:03 Lag1 16 0 6 -2 +- 24 1 +- 11 5
7849 20 May 00 19:49 Lag2 13 0 22 22 +- 28 -23 +- 40 3
7849 20 May 00 21:37 Lag1 13 0 5 -3 +- 33 -5 +- 29 3
7849 21 May 00 00:13 Lag2 6 0 24 25 +- 483 -22 +- 221 1
7849 21 May 00 04:11 Lag2 11 0 27 -1 +- 57 22 +- 44 2
7849 21 May 00 06:32 Lag1 10 0 6 -1 +- 32 7 +- 40 2
7849 21 May 00 08:01 Lag2 9 0 29 -5 +- 36 16 +- 23 2
7849 21 May 00 10:11 Lag1 9 0 17 -11 +- 33 11 +- 34 2
7849 21 May 00 13:33 Lag1 7 0 22 17 +- 36 11 +- 32 4
7849 21 May 00 21:53 Lag2 6 0 22 -2 +- 41 -23 +- 49 11
7849 22 May 00 01:46 Lag2 5 0 23 11 +- 47 -16 +- 50 2
7849 22 May 00 06:23 Lag2 12 0 14 7 +- 54 4 +- 31 3
7849 22 May 00 08:37 Lag1 17 0 18 -16 +- 23 0 +- 11 7
7849 22 May 00 10:09 Lag2 6 0 16 15 +- 39 -5 +- 43 4
7849 22 May 00 12:13 Lag1 5 0 6 0 +- 42 3 +- 29 2
7849 22 May 00 15:33 Lag1 14 0 9 7 +- 26 -6 +- 24 2
7849 22 May 00 18:49 Lag1 15 0 10 -8 +- 25 0 +- 12 5
7849 22 May 00 19:55 Lag2 13 0 12 -12 +- 29 -11 +- 37 3
7849 22 May 00 22:39 Lag1 6 0 7 -4 +- 39 -7 +- 77 2
7849 22 May 00 23:49 Lag2 7 0 30 23 +- 170 -4 +- 102 4
7849 23 May 00 04:13 Lag2 4 0 6 7 +- 294 10 +- 247 3
7849 23 May 00 07:29 Lag1 4 0 33 -41 +- 60 -32 +- 113 5
7849 23 May 00 08:31 Lag2 5 5 0 0 +- 0 0 +- 0 0
7849 23 May 00 10:59 Lag1 8 0 25 -25 +- 35 -1 +- 47 2
7849 23 May 00 14:21 Lag1 5 0 12 12 +- 43 0 +- 42 2
7849 23 May 00 17:31 Lag1 14 0 8 8 +- 29 6 +- 20 1
7849 23 May 00 21:11 Lag1 4 0 42 -42 +- 50 23 +- 48 4
7849 23 May 00 21:53 Lag2 7 0 8 -33 +- 236 -14 +- 125 1
7849 24 May 00 02:11 Lag2 13 0 14 6 +- 27 -12 +- 25 4
7849 24 May 00 09:45 Lag1 2 0 37 -44 +- 86 10 +- 68 0
7849 25 May 00 08:45 Lag2 7 0 18 -22 +- 79 29 +- 66 2
7849 25 May 00 11:54 Lag1 7 0 36 -39 +- 72 2 +- 45 4
7849 25 May 00 15:03 Lag1 11 0 10 -3 +- 29 -11 +- 34 2
7849 25 May 00 18:21 Lag1 14 0 12 -11 +- 25 0 +- 15 4
7849 25 May 00 21:55 Lag1 2 0 50 267 +-1925 210 +-1279 0
7849 26 May 00 06:26 Lag2 2 0 64 440 +-3221 202 +-1291 0
7849 26 May 00 06:49 Lag1 12 0 17 -5 +- 28 13 +- 22 4
7849 27 May 00 18:42 Lag2 5 0 55 -49 +- 50 -30 +- 142 1

Station 7939 (Matera) (Position fixed, acc. 120 mm)
7939 18 May 00 00:09 Lag2 8 0 160 273 +- 840 -85 +- 461 103
7939 18 May 00 21:33 Lag2 8 0 102 -19 +- 132 25 +- 63 87
7939 24 May 00 22:35 Lag2 15 0 253 -31 +- 157 90 +- 97 222

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 19 May 00 11:05 Lag1 5 0 10 -42 +- 240 20 +- 137 4
8834 19 May 00 20:25 Lag2 5 0 71 -85 +- 731 6 +- 316 2
8834 20 May 00 12:43 Lag1 4 0 41 -19 +- 643 8 +- 272 3
8834 20 May 00 21:57 Lag2 9 0 77 -78 +- 72 0 +- 53 1
8834 21 May 00 02:01 Lag2 14 0 54 -52 +- 25 4 +- 17 6
8834 24 May 00 10:47 Lag1 11 0 60 -57 +- 45 1 +- 24 4
8834 24 May 00 17:59 Lag1 3 0 105 -20 +- 404 64 +- 305 3
8834 24 May 00 18:42 Lag2 6 0 19 -38 +- 83 28 +- 91 2
8834 24 May 00 22:33 Lag2 16 0 43 -48 +- 29 28 +- 20 13
8834 25 May 00 02:53 Lag2 9 0 39 -55 +- 99 12 +- 65 6
8834 26 May 00 11:47 Lag1 17 0 44 -42 +- 27 28 +- 16 9
8834 26 May 00 15:09 Lag1 9 0 41 -60 +- 55 -19 +- 38 6
8834 26 May 00 18:49 Lag2 12 0 76 -74 +- 35 -2 +- 32 4
8834 26 May 00 22:33 Lag2 13 0 8 -14 +- 54 -8 +- 34 5
--------------------------------------------------------------------------------

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 000304 - 000528 0/ 9/ 0 0/ 41/ 0 50
1868 KOMLAS 000320 - 000330 0/ 2/ 0 0/ 2/ 0 4
1884 RIGLAS 000302 - 000526 0/ 10/ 0 0/ 36/ 2 48
1893 CRMLAS 000508 - 000522 0/ 0/ 0 0/ 4/ 0 4
7080 MLRS25 000301 - 000529 35/ 25/ 11 23/ 47/ 5 146
7090 ML0514 000301 - 000529 23/118/ 8 65/ 68/ 7 289
7105 ML0725 000301 - 000526 43/ 33/ 7 24/ 59/ 4 170
7110 ML0414 000302 - 000529 50/ 39/ 7 31/ 81/ 10 218
7124 ML0819 000403 - 000526 0/ 25/ 1 2/ 20/ 2 50
7231 WUHA01 000426 - 000522 0/ 0/ 0 0/ 7/ 0 7
7237 CHALAS 000311 - 000528 0/ 16/ 0 0/ 40/ 0 56
7249 BEJLAS 000306 - 000528 0/ 18/ 0 0/ 36/ 0 54
7328 KOGLAS 000301 - 000529 18/ 14/ 2 10/ 1/ 0 45
7335 KASLAS 000301 - 000526 46/ 0/ 1 20/ 0/ 0 67
7337 MIULAS 000301 - 000508 27/ 3/ 3 18/ 0/ 0 51
7339 TATLAS 000301 - 000518 52/ 7/ 4 25/ 1/ 0 89
7403 TLRS3 000405 - 000523 2/ 3/ 0 1/ 4/ 1 11
7548 CAGLAS 000516 - 000519 0/ 0/ 0 0/ 3/ 0 3
7806 METLAS 000312 - 000506 0/ 10/ 0 0/ 6/ 0 16
7810 ZIMLAT 000305 - 000528 43/ 9/ 3 9/ 25/ 4 93
7811 POLLAS 000310 - 000526 0/ 7/ 0 0/ 25/ 0 32
7820 YSLR01 000303 - 000522 0/ 25/ 1 0/ 39/ 0 65
7824 SPNLAS 000301 - 000529 0/ 37/ 5 0/ 42/ 3 87
7831 HELLAS 000327 - 000328 0/ 1/ 0 0/ 1/ 0 2
7835 GRASSE 000302 - 000529 31/ 24/ 3 18/ 38/ 1 115
7836 GFZLAS 000302 - 000515 1/ 10/ 4 2/ 30/ 1 48
7837 CHILAS 000316 - 000527 0/ 14/ 3 0/ 25/ 1 43
7838 SHOLAS 000307 - 000524 11/ 22/ 3 3/ 25/ 1 65
7839 AUSLAS 000302 - 000525 43/ 25/ 4 21/ 39/ 4 136
7840 RGOLAS 000301 - 000528 93/ 26/ 7 29/ 34/ 4 193
7845 GRASLL 000302 - 000529 45/ 6/ 2 23/ 11/ 0 87
7849 MSLO01 000301 - 000528 36/103/ 7 78/ 55/ 12 291
7939 SAO102 000301 - 000524 0/ 2/ 0 0/ 8/ 0 10
8834 WLRS01 000301 - 000529 71/ 15/ 3 21/ 40/ 6 156
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
520.0 93.9 +/- 0.1 327.3 +/- 0.1 -31771.71 +/- 0.01
523.0 95.5 +/- 0.1 325.4 +/- 0.1 -31773.40 +/- 0.01
526.0 96.6 +/- 0.1 322.6 +/- 0.1 -31775.12 +/- 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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