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SLR-Report No.5470

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Date:2005-06-13 13:15:00
Sender:Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>>
Subject:[SLR-Report] No. 5470: Delft QL Report June 13, 2005
Author:Ron Noomen
Content:********************************************************************************
SLR Electronic Report 2005-06-13 13:15:00 UTC Message No. 5470
********************************************************************************

Author: Ron Noomen
Subject: Delft QL Report June 13, 2005


WEGENER-2 IERS

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


June 13, 2005


This is a daily 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, Jun 13, 2005.
Questions and comments should be addressed to:

R. Noomen
Delft University of Technology
Faculty of Aerospace Engineering
Delft Institute for Earth-Oriented Space Research
Kluyverweg 1
2629 HS Delft
The Netherlands

Telephone: +31-15-2785377
Telefax : +31-15-2785322
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,
Jun 13, 2005. 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
------------------------------------------------------------------------------
1873 Simeiz, Crimea, Ukraine 050611 - 050612 2 1
6810 Zimmerwald 846, Switzerland 050611 - 050612 3 5
7090 Yarragadee, Australia 050611 - 050611 1 2
7110 Monument Peak, California 050611 - 050611 3 -
7355 Urumqi, China (TROS) 050611 - 050611 1 -
7810 Zimmerwald 423, Switzerland 050611 - 050612 3 5
7825 Mount Stromlo, Australia 050611 - 050613 6 5
7832 Riyad, Saudi Arabia 050611 - 050612 6 4
7839 Graz, Austria 050613 - 050613 1 -
7840 Herstmonceux, United Kingdom 050611 - 050613 3 2
7848 Ajaccio, Corsica (FTLRS) 050611 - 050611 1 -
7941 Matera, Italy (MLRO 532) 050611 - 050611 1 -
8834 Wettzell, Germany 050612 - 050612 2 1
------ ------ --- ---
TOTAL 050611 - 050613 33 25
------------------------------------------------------------------------------


B. ANALYSIS RESULTS

The analysis is based on two orbit solutions using global quick-look normal
points that cover a period of 8 days which are computed simultaneously. This
week´s data interval runs from Sun, Jun 5, 2005 to Mon, Jun 13, 2005. The
measurement and dynamic models used in this analysis are close to the IERS
Standard. The overall model is referred to as QLDACMOD11. The details of this
model can be obtained on request. The terrestrial reference frame is provided
by the ITRF2000 station coordinates solution (extended with coordinates
of new stations, where necessary).

The general statistics and results of this week´s analysis are thus:

-----------------------------------------------------------------------
Satellite LAGEOS-1 LAGEOS-2
Number of Stations 27 23
Number of Passes 175/171 146/146
Number of Normal Points 1749/1724 1798/1786
Weighted RMS of Fit (mm) 15 14
-----------------------------------------------------------------------


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 1831 (Lviv) (position fixed, acc. 400 mm)
1831 10 Jun 05 20:53 LAG1 8 0 72 59 +- 445 85 +- 661 22

Station 1864 (Maidanak) (position fixed, acc. 200 mm)
1864 5 Jun 05 17:21 LAG2 12 0 40 15 +- 173 21 +- 109 16
1864 5 Jun 05 20:27 LAG1 11 0 42 25 +- 186 -10 +- 105 23
1864 6 Jun 05 19:05 LAG1 8 0 31 27 +- 235 12 +- 135 16
1864 6 Jun 05 19:33 LAG2 12 0 16 6 +- 173 -2 +- 158 15
1864 7 Jun 05 17:47 LAG1 11 0 27 22 +- 180 1 +- 158 16

Station 1873 (Simeiz) (position fixed, acc. 200 mm)
1873 5 Jun 05 21:01 LAG1 1 0 139 0 +- 0 0 +- 0 0
1873 6 Jun 05 00:36 LAG1 2 0 130 729 +-9999 -251 +-6510 0
1873 6 Jun 05 19:49 LAG2 5 0 126 512 +-3283 -180 +-1509 15
1873 6 Jun 05 23:15 LAG1 2 0 152 320 +-9999 -69 +-6973 0
1873 7 Jun 05 21:51 LAG2 4 0 119 229 +-2391 -66 +-1412 6
1873 8 Jun 05 20:21 LAG1 4 0 129 231 +-1506 -77 +-1101 8
1873 11 Jun 05 23:01 LAG1 14 0 224 226 +- 163 -23 +- 99 32*CHK*
1873 12 Jun 05 19:57 LAG2 11 0 202 235 +- 273 39 +- 213 24
1873 12 Jun 05 21:40 LAG1 10 0 269 259 +- 191 -23 +- 172 52*CHK*

Station 1884 (Riga) (position fixed, acc. 100 mm)
1884 8 Jun 05 23:33 LAG1 11 0 6 0 +- 96 -4 +- 81 4
1884 9 Jun 05 17:45 LAG2 12 0 78 -88 +- 156 8 +- 105 5
1884 9 Jun 05 21:33 LAG2 9 0 29 25 +- 110 -8 +- 161 6
1884 9 Jun 05 22:05 LAG1 18 0 11 8 +- 70 1 +- 46 6

Station 6405 (Concepcion) (position solved, acc. 20 mm)
6405 7 Jun 05 22:55 LAG1 9 0 9 8 +- 37 -12 +- 34 5
6405 8 Jun 05 02:09 LAG1 16 0 12 3 +- 19 -7 +- 11 6
6405 8 Jun 05 05:33 LAG2 5 0 22 -3 +- 329 9 +- 172 4
6405 8 Jun 05 05:53 LAG1 8 0 17 29 +- 46 -19 +- 49 5

Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm)
6810 5 Jun 05 08:39 LAG1 5 0 31 -10 +- 113 -17 +- 87 3
6810 7 Jun 05 09:33 LAG1 7 0 18 24 +- 221 -19 +- 111 5
6810 7 Jun 05 12:53 LAG1 10 0 17 -12 +- 62 9 +- 75 2
6810 7 Jun 05 13:05 LAG2 10 0 22 -21 +- 58 5 +- 30 3
6810 7 Jun 05 17:12 LAG2 18 0 10 -6 +- 44 6 +- 31 3
6810 7 Jun 05 21:19 LAG2 9 0 9 -8 +- 65 -2 +- 40 1
6810 7 Jun 05 21:21 LAG1 7 0 21 -20 +- 69 -1 +- 49 4
6810 8 Jun 05 00:50 LAG1 18 0 14 -5 +- 43 -5 +- 22 7
6810 8 Jun 05 04:25 LAG1 15 0 5 0 +- 47 -1 +- 28 5
6810 8 Jun 05 08:03 LAG1 9 0 44 -19 +- 102 -12 +- 44 3
6810 8 Jun 05 11:13 LAG2 15 0 52 -56 +- 51 -15 +- 46 3
6810 8 Jun 05 11:17 LAG1 22 0 40 18 +- 39 -17 +- 22 21
6810 8 Jun 05 15:04 LAG2 19 0 10 -10 +- 46 4 +- 28 3
6810 8 Jun 05 19:41 LAG2 13 0 32 0 +- 143 -16 +- 73 5
6810 8 Jun 05 23:17 LAG2 18 0 26 -15 +- 44 -11 +- 29 5
6810 8 Jun 05 23:29 LAG1 15 0 19 -18 +- 47 -2 +- 23 5
6810 9 Jun 05 03:02 LAG1 21 0 15 -14 +- 39 2 +- 22 4
6810 9 Jun 05 06:47 LAG1 10 0 16 -16 +- 119 0 +- 73 2
6810 9 Jun 05 09:58 LAG1 17 0 15 0 +- 52 -7 +- 27 4
6810 9 Jun 05 13:11 LAG2 23 0 23 -22 +- 38 0 +- 21 5
6810 9 Jun 05 17:25 LAG2 21 0 11 -9 +- 41 -3 +- 26 2
6810 9 Jun 05 21:21 LAG2 25 0 25 -15 +- 36 -10 +- 20 3
6810 9 Jun 05 22:03 LAG1 2 0 38 -108 +-9999 -26 +-5339 0
6810 10 Jun 05 02:07 LAG1 10 0 5 -3 +- 176 4 +- 85 2
6810 10 Jun 05 05:15 LAG1 14 0 14 -9 +- 49 8 +- 36 3
6810 10 Jun 05 08:29 LAG1 11 0 27 -20 +- 56 -5 +- 23 6
6810 10 Jun 05 11:19 LAG2 23 0 36 -25 +- 38 -13 +- 23 17
6810 10 Jun 05 12:13 LAG1 17 0 28 -27 +- 44 -7 +- 39 2
6810 10 Jun 05 15:43 LAG2 13 0 13 -3 +- 94 -6 +- 60 1
6810 10 Jun 05 19:25 LAG2 20 0 24 -14 +- 45 -15 +- 26 3
6810 10 Jun 05 20:43 LAG1 11 0 6 -4 +- 83 1 +- 68 3
6810 10 Jun 05 23:39 LAG2 17 0 43 -35 +- 51 -10 +- 44 3
6810 11 Jun 05 00:14 LAG1 24 0 26 -25 +- 37 2 +- 16 4
6810 11 Jun 05 03:51 LAG1 19 0 13 -9 +- 41 5 +- 26 2
6810 11 Jun 05 07:33 LAG1 14 0 14 -15 +- 103 1 +- 50 4
6810 11 Jun 05 10:39 LAG1 28 0 13 -1 +- 34 -6 +- 18 6
6810 11 Jun 05 13:22 LAG2 22 0 11 -10 +- 39 2 +- 21 3
6810 11 Jun 05 17:39 LAG2 22 0 7 -5 +- 40 0 +- 25 5
6810 12 Jun 05 09:21 LAG1 10 0 24 -23 +- 63 0 +- 27 4
6810 12 Jun 05 11:41 LAG2 19 0 16 -15 +- 42 1 +- 31 5
6810 12 Jun 05 15:49 LAG2 14 0 12 -12 +- 57 7 +- 35 4
6810 12 Jun 05 19:39 LAG2 28 0 19 -16 +- 34 -3 +- 18 6
6810 12 Jun 05 21:29 LAG1 6 0 42 -42 +- 941 0 +- 427 2

Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm)
7080 8 Jun 05 08:43 LAG1 16 0 18 20 +- 18 -7 +- 11 3
7080 9 Jun 05 02:49 LAG2 19 0 4 -1 +- 15 0 +- 12 4
7080 9 Jun 05 06:53 LAG2 10 0 20 16 +- 29 -2 +- 22 4
7080 9 Jun 05 07:23 LAG1 5 0 16 15 +- 72 0 +- 63 2
7080 10 Jun 05 05:11 LAG2 6 0 6 4 +- 33 6 +- 50 4
7080 10 Jun 05 06:12 LAG1 6 0 28 33 +- 68 -3 +- 50 1

Station 7090 (Yarragadee) (position fixed, acc. 10 mm)
7090 5 Jun 05 10:37 LAG1 11 0 4 -1 +- 13 5 +- 17 1
7090 5 Jun 05 17:23 LAG1 14 0 14 -1 +- 11 14 +- 12 1
7090 6 Jun 05 12:31 LAG1 6 0 5 -7 +- 26 -4 +- 22 2
7090 6 Jun 05 15:57 LAG1 9 0 36 -12 +- 14 17 +- 6 3
7090 6 Jun 05 16:37 LAG2 12 0 4 -4 +- 14 4 +- 13 1
7090 6 Jun 05 20:23 LAG2 17 0 23 6 +- 15 -14 +- 12 2
7090 7 Jun 05 00:49 LAG2 8 0 13 -8 +- 70 2 +- 45 3
7090 7 Jun 05 04:51 LAG1 5 0 27 -35 +- 43 10 +- 44 1
7090 7 Jun 05 05:07 LAG2 4 0 14 -15 +- 46 -3 +- 85 2
7090 7 Jun 05 08:07 LAG1 7 0 18 -16 +- 15 -2 +- 26 6
7090 7 Jun 05 11:23 LAG1 9 0 15 -15 +- 14 10 +- 21 1
7090 7 Jun 05 14:47 LAG2 7 0 23 -25 +- 17 13 +- 42 1
7090 7 Jun 05 15:11 LAG1 5 0 44 138 +- 388 -33 +- 138 2
7090 7 Jun 05 18:27 LAG2 21 0 12 5 +- 9 5 +- 5 4
7090 8 Jun 05 10:18 LAG1 3 0 24 2 +- 108 -29 +- 121 2
7090 8 Jun 05 13:11 LAG1 14 0 6 -4 +- 13 0 +- 6 4
7090 9 Jun 05 01:23 LAG2 8 0 15 -12 +- 21 -3 +- 20 0
7090 10 Jun 05 14:09 LAG1 6 0 17 -9 +- 17 9 +- 13 1
7090 10 Jun 05 21:07 LAG2 18 0 19 13 +- 10 -16 +- 9 4
7090 11 Jun 05 16:11 LAG1 11 0 46 -23 +- 12 23 +- 8 2
7090 11 Jun 05 19:25 LAG2 11 0 3 4 +- 43 -1 +- 27 1
7090 11 Jun 05 23:27 LAG2 12 0 4 -3 +- 12 -2 +- 15 2

Station 7105 (Greenbelt) (position fixed, acc. 10 mm)
7105 6 Jun 05 00:45 LAG2 8 0 6 6 +- 15 -2 +- 18 3
7105 6 Jun 05 04:05 LAG1 3 0 20 -51 +- 505 -33 +- 236 0
7105 6 Jun 05 04:57 LAG2 4 0 22 21 +- 50 2 +- 70 0

Station 7110 (Monument Peak) (position fixed, acc. 10 mm)
7110 7 Jun 05 02:41 LAG2 5 0 9 8 +- 18 5 +- 59 4
7110 7 Jun 05 10:07 LAG1 12 0 7 6 +- 12 -3 +- 9 3
7110 7 Jun 05 17:01 LAG1 4 0 3 -13 +- 103 8 +- 76 2
7110 7 Jun 05 20:25 LAG2 11 0 14 -15 +- 13 -2 +- 14 2
7110 8 Jun 05 00:33 LAG2 8 0 6 -5 +- 18 0 +- 27 3
7110 8 Jun 05 04:52 LAG2 1 0 2 0 +- 0 0 +- 0 0
7110 10 Jun 05 00:53 LAG2 8 0 3 0 +- 15 -6 +- 27 1
7110 10 Jun 05 04:49 LAG2 7 0 12 1 +- 16 7 +- 9 2
7110 10 Jun 05 09:03 LAG2 3 0 18 21 +- 91 5 +- 161 1
7110 10 Jun 05 09:35 LAG1 14 0 8 7 +- 13 -6 +- 9 3
7110 11 Jun 05 02:51 LAG2 14 0 9 -7 +- 11 2 +- 5 2
7110 11 Jun 05 04:45 LAG1 5 0 30 23 +- 22 32 +- 75 4
7110 11 Jun 05 07:11 LAG2 8 0 5 -1 +- 15 2 +- 11 4
7110 11 Jun 05 08:09 LAG1 9 0 8 9 +- 20 1 +- 16 1
7110 11 Jun 05 11:41 LAG1 11 0 11 -12 +- 14 2 +- 17 3
7110 11 Jun 05 18:41 LAG1 3 0 3 0 +- 294 -1 +- 149 0

Station 7124 (Papeete) (position fixed, acc. 10 mm)
7124 6 Jun 05 09:04 LAG1 2 0 25 543 +-2985 -196 +-1032 0
7124 6 Jun 05 13:10 LAG2 10 0 2 -2 +- 32 2 +- 28 1
7124 7 Jun 05 07:13 LAG1 10 0 15 10 +- 13 -11 +- 14 2
7124 7 Jun 05 11:33 LAG2 5 0 5 -10 +- 431 2 +- 187 2
7124 8 Jun 05 13:19 LAG2 10 0 15 -18 +- 16 16 +- 26 4
7124 9 Jun 05 08:03 LAG1 8 0 20 17 +- 15 -14 +- 17 5
7124 11 Jun 05 08:47 LAG1 3 0 23 11 +- 159 -7 +- 109 2

Station 7237 (Changchun) (position fixed, acc. 50 mm)
7237 6 Jun 05 12:14 LAG2 3 0 19 150 +-1088 -86 +- 588 12
7237 6 Jun 05 15:17 LAG1 14 0 12 3 +- 47 7 +- 33 7
7237 8 Jun 05 16:15 LAG1 5 0 22 21 +- 75 0 +- 65 6

Station 7355 (Urumqi) (position solved, acc. 10 mm)
7355 5 Jun 05 16:49 LAG1 17 0 17 -11 +- 10 -1 +- 7 12
7355 5 Jun 05 17:43 LAG2 10 0 11 -8 +- 22 3 +- 19 9
7355 5 Jun 05 20:23 LAG1 14 3 14 0 +- 14 0 +- 10 14
7355 7 Jun 05 17:44 LAG1 13 0 10 1 +- 12 2 +- 9 9
7355 8 Jun 05 15:55 LAG2 15 2 17 14 +- 12 -2 +- 11 10
7355 8 Jun 05 16:25 LAG1 8 0 9 -1 +- 17 -2 +- 25 8
7355 8 Jun 05 19:51 LAG1 16 0 16 -2 +- 10 -4 +- 6 14
7355 9 Jun 05 18:10 LAG2 6 0 32 -26 +- 35 -4 +- 46 13
7355 9 Jun 05 18:31 LAG1 15 1 18 -16 +- 11 5 +- 8 8
7355 10 Jun 05 16:06 LAG2 14 2 19 18 +- 12 0 +- 12 7
7355 10 Jun 05 17:11 LAG1 12 0 10 6 +- 13 2 +- 11 7
7355 10 Jun 05 20:39 LAG1 15 1 11 -8 +- 12 0 +- 8 7
7355 11 Jun 05 19:31 LAG1 9 1 12 19 +- 33 -7 +- 21 7

Station 7405 (Concepcion) (position solved, acc. 20 mm)
7405 6 Jun 05 01:27 LAG1 3 0 12 3 +- 90 -12 +- 143 2

Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm)
7501 6 Jun 05 06:29 LAG2 11 0 14 -13 +- 13 -3 +- 20 2
7501 6 Jun 05 13:29 LAG1 3 0 31 -22 +- 52 36 +- 212 5
7501 6 Jun 05 20:19 LAG1 5 0 38 35 +- 172 1 +- 73 3
7501 7 Jun 05 00:23 LAG2 7 0 8 -9 +- 69 9 +- 38 1
7501 7 Jun 05 04:09 LAG2 20 0 17 6 +- 10 20 +- 12 8
7501 7 Jun 05 08:23 LAG2 9 0 10 4 +- 61 -3 +- 32 2
7501 7 Jun 05 18:31 LAG1 20 0 14 10 +- 9 6 +- 6 4
7501 7 Jun 05 22:11 LAG1 2 0 8 8 +- 313 0 +- 379 0
7501 7 Jun 05 22:29 LAG2 10 0 14 6 +- 60 4 +- 32 1
7501 8 Jun 05 02:07 LAG2 19 0 29 -18 +- 9 18 +- 7 5
7501 8 Jun 05 06:49 LAG2 7 0 10 -9 +- 20 0 +- 45 2
7501 8 Jun 05 17:35 LAG1 4 0 8 -6 +- 88 -2 +- 87 0
7501 8 Jun 05 20:55 LAG1 14 0 13 21 +- 25 -5 +- 12 3
7501 9 Jun 05 00:09 LAG2 25 0 4 3 +- 8 1 +- 5 1
7501 9 Jun 05 04:31 LAG2 20 0 15 -3 +- 9 18 +- 11 1
7501 9 Jun 05 08:37 LAG2 11 0 11 2 +- 73 -3 +- 36 4
7501 9 Jun 05 12:55 LAG1 12 0 13 -4 +- 13 19 +- 18 1
7501 9 Jun 05 19:23 LAG1 18 0 18 0 +- 11 10 +- 6 2
7501 9 Jun 05 22:17 LAG2 15 0 6 -5 +- 10 0 +- 8 2
7501 9 Jun 05 22:55 LAG1 7 0 17 21 +- 25 8 +- 33 0
7501 10 Jun 05 02:19 LAG2 16 0 24 -9 +- 10 17 +- 9 4
7501 10 Jun 05 06:51 LAG2 19 0 11 4 +- 9 8 +- 8 2
7501 10 Jun 05 11:29 LAG1 11 0 19 23 +- 18 6 +- 15 2
7501 10 Jun 05 18:11 LAG1 12 0 10 10 +- 17 -1 +- 15 1
7501 10 Jun 05 20:50 LAG2 5 0 16 19 +- 107 -26 +- 84 4

Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm)
7810 5 Jun 05 08:39 LAG1 4 0 31 0 +- 123 -22 +- 88 3
7810 7 Jun 05 09:33 LAG1 7 0 6 17 +- 223 -8 +- 112 2
7810 7 Jun 05 12:55 LAG1 6 0 12 5 +- 120 26 +- 198 3
7810 7 Jun 05 13:05 LAG2 8 0 12 -5 +- 74 6 +- 36 4
7810 7 Jun 05 17:13 LAG2 17 0 9 0 +- 45 7 +- 34 2
7810 7 Jun 05 21:19 LAG2 7 0 2 1 +- 69 0 +- 53 1
7810 7 Jun 05 21:24 LAG1 6 0 13 -12 +- 74 -2 +- 56 2
7810 8 Jun 05 00:59 LAG1 16 0 11 4 +- 45 -4 +- 25 6
7810 8 Jun 05 04:27 LAG1 15 0 9 8 +- 48 -1 +- 29 3
7810 8 Jun 05 08:03 LAG1 8 0 32 -15 +- 103 -8 +- 47 2
7810 8 Jun 05 11:15 LAG2 14 0 45 -44 +- 49 -13 +- 48 4
7810 8 Jun 05 11:17 LAG1 20 0 43 30 +- 40 -15 +- 24 19
7810 8 Jun 05 15:04 LAG2 18 0 8 -2 +- 49 4 +- 30 4
7810 8 Jun 05 19:41 LAG2 12 0 17 5 +- 147 -11 +- 78 6
7810 8 Jun 05 23:17 LAG2 16 0 14 1 +- 46 -10 +- 33 4
7810 8 Jun 05 23:30 LAG1 16 0 11 -8 +- 45 -2 +- 22 5
7810 9 Jun 05 03:03 LAG1 19 0 5 -2 +- 42 2 +- 25 2
7810 9 Jun 05 06:47 LAG1 10 0 8 -2 +- 120 -3 +- 74 3
7810 9 Jun 05 09:58 LAG1 13 0 14 14 +- 60 -7 +- 34 5
7810 9 Jun 05 13:13 LAG2 20 0 10 -8 +- 41 1 +- 24 7
7810 9 Jun 05 17:25 LAG2 21 0 6 1 +- 41 -4 +- 26 2
7810 9 Jun 05 21:21 LAG2 20 0 16 -3 +- 41 -9 +- 23 3
7810 9 Jun 05 22:04 LAG1 1 0 22 0 +- 0 0 +- 0 0
7810 10 Jun 05 02:07 LAG1 9 0 18 8 +- 189 5 +- 95 1
7810 10 Jun 05 05:28 LAG1 7 0 12 6 +- 147 4 +- 116 2
7810 10 Jun 05 08:31 LAG1 5 0 17 -10 +- 83 -5 +- 41 5
7810 10 Jun 05 11:25 LAG2 16 0 28 -17 +- 45 -10 +- 32 17
7810 10 Jun 05 12:19 LAG1 16 0 25 -22 +- 50 -5 +- 48 3
7810 10 Jun 05 15:45 LAG2 11 0 8 2 +- 115 -6 +- 74 1
7810 10 Jun 05 19:25 LAG2 19 0 22 -5 +- 50 -14 +- 29 1
7810 10 Jun 05 20:44 LAG1 9 0 7 -7 +- 71 -1 +- 68 4
7810 10 Jun 05 23:39 LAG2 12 0 22 -17 +- 53 -13 +- 70 5
7810 11 Jun 05 00:19 LAG1 22 0 11 -11 +- 39 1 +- 18 2
7810 11 Jun 05 03:51 LAG1 20 0 9 -2 +- 41 5 +- 24 3
7810 11 Jun 05 07:33 LAG1 13 0 4 -6 +- 104 1 +- 54 2
7810 11 Jun 05 10:43 LAG1 25 0 15 10 +- 36 -6 +- 20 5
7810 11 Jun 05 13:22 LAG2 23 0 9 2 +- 38 4 +- 20 3
7810 11 Jun 05 17:39 LAG2 21 0 6 6 +- 41 0 +- 26 2
7810 12 Jun 05 09:22 LAG1 10 0 9 -5 +- 64 2 +- 27 8
7810 12 Jun 05 11:40 LAG2 17 0 7 2 +- 44 2 +- 33 6
7810 12 Jun 05 15:49 LAG2 13 0 11 0 +- 57 6 +- 37 4
7810 12 Jun 05 19:40 LAG2 24 0 7 0 +- 38 -3 +- 21 4
7810 12 Jun 05 21:31 LAG1 5 0 30 -41 +-1138 -4 +- 529 2

Station 7811 (Borowiec) (position fixed, acc. 60 mm)
7811 8 Jun 05 23:34 LAG1 15 0 12 12 +- 47 0 +- 32 3
7811 9 Jun 05 21:29 LAG2 17 0 23 18 +- 44 -10 +- 36 6
7811 9 Jun 05 22:12 LAG1 13 0 12 11 +- 50 2 +- 44 4

Station 7824 (San Fernando) (position fixed, acc. 40 mm)
7824 6 Jun 05 23:03 LAG1 7 0 65 60 +- 47 14 +- 44 4
7824 7 Jun 05 02:41 LAG1 8 0 42 41 +- 53 2 +- 58 1
7824 7 Jun 05 21:15 LAG2 6 0 62 90 +- 233 18 +- 150 3
7824 8 Jun 05 01:08 LAG1 4 0 67 68 +- 65 -1 +- 34 5
7824 8 Jun 05 23:47 LAG2 7 0 47 90 +- 224 -26 +- 132 2
7824 9 Jun 05 00:07 LAG1 9 0 53 84 +- 140 -16 +- 68 3
7824 9 Jun 05 22:27 LAG1 8 0 44 40 +- 47 -7 +- 49 6
7824 10 Jun 05 23:40 LAG2 2 0 44 39 +- 89 -10 +- 71 0
7824 11 Jun 05 00:31 LAG1 2 0 36 29 +-8039 -2 +-3025 0

Station 7825 (Mount Stromlo) (position solved, acc. 10 mm)
7825 5 Jun 05 00:49 LAG2 6 0 3 -10 +- 117 -4 +- 66 2
7825 6 Jun 05 02:05 LAG1 6 0 3 -15 +- 197 -7 +- 77 2
7825 6 Jun 05 02:55 LAG2 12 0 9 4 +- 18 10 +- 18 4
7825 8 Jun 05 12:57 LAG2 13 0 19 18 +- 11 -5 +- 10 2
7825 8 Jun 05 13:07 LAG1 14 0 16 -6 +- 11 -7 +- 5 4
7825 8 Jun 05 16:45 LAG2 27 0 9 8 +- 8 -2 +- 5 3
7825 8 Jun 05 21:01 LAG2 26 0 17 1 +- 8 -12 +- 6 2
7825 9 Jun 05 14:51 LAG2 16 0 12 -10 +- 10 0 +- 8 4
7825 9 Jun 05 15:31 LAG1 11 0 13 -4 +- 12 22 +- 21 2
7825 9 Jun 05 19:13 LAG2 20 0 14 13 +- 10 -10 +- 8 1
7825 9 Jun 05 23:15 LAG2 14 0 10 1 +- 12 6 +- 7 2
7825 10 Jun 05 00:11 LAG1 14 0 3 -2 +- 15 -1 +- 12 2
7825 11 Jun 05 13:15 LAG1 2 0 4 -48 +-3878 18 +-1374 0
7825 11 Jun 05 15:05 LAG2 22 2 13 -2 +- 11 8 +- 7 4
7825 11 Jun 05 19:39 LAG2 3 0 10 14 +- 42 21 +- 190 3
7825 12 Jun 05 04:33 LAG1 14 0 9 6 +- 11 2 +- 6 5
7825 12 Jun 05 07:55 LAG1 12 0 11 -6 +- 12 -7 +- 11 5
7825 12 Jun 05 11:09 LAG1 24 0 15 -14 +- 8 -2 +- 4 4
7825 12 Jun 05 13:15 LAG2 25 0 4 2 +- 8 -1 +- 6 2
7825 12 Jun 05 14:51 LAG1 16 0 9 -7 +- 10 5 +- 10 2
7825 12 Jun 05 17:15 LAG2 28 0 3 0 +- 7 -1 +- 5 2
7825 12 Jun 05 21:35 LAG2 19 0 6 2 +- 9 0 +- 6 5
7825 12 Jun 05 23:45 LAG1 7 0 17 -21 +- 24 -12 +- 28 8

Station 7832 (Riyad) (position solved, acc. 20 mm)
7832 5 Jun 05 13:15 LAG2 2 0 32 -6 +- 53 -336 +- 620 0
7832 5 Jun 05 17:15 LAG2 7 0 10 -21 +- 153 -7 +- 94 2
7832 5 Jun 05 20:37 LAG1 16 0 13 -8 +- 19 -8 +- 11 3
7832 5 Jun 05 21:27 LAG2 9 0 8 0 +- 23 -5 +- 14 2
7832 6 Jun 05 00:17 LAG1 8 0 16 15 +- 23 -10 +- 40 3
7832 6 Jun 05 15:25 LAG2 10 0 9 -8 +- 21 0 +- 38 3
7832 6 Jun 05 19:19 LAG1 7 0 2 5 +- 88 3 +- 56 2
7832 6 Jun 05 19:33 LAG2 11 0 6 -3 +- 20 1 +- 15 5
7832 6 Jun 05 22:51 LAG1 11 0 29 -28 +- 24 1 +- 21 4
7832 7 Jun 05 17:37 LAG2 6 0 10 -10 +- 113 0 +- 90 3
7832 7 Jun 05 21:25 LAG1 5 0 11 -10 +- 308 -8 +- 125 0
7832 7 Jun 05 21:39 LAG2 10 0 16 16 +- 20 0 +- 23 1
7832 8 Jun 05 15:43 LAG2 9 0 13 11 +- 22 9 +- 44 4
7832 8 Jun 05 19:55 LAG2 7 0 6 4 +- 27 -4 +- 44 2
7832 8 Jun 05 20:09 LAG1 7 0 8 -4 +- 70 -7 +- 44 3
7832 11 Jun 05 00:31 LAG1 5 0 4 -3 +- 30 -2 +- 94 3
7832 11 Jun 05 07:25 LAG1 3 0 5 -11 +- 636 6 +- 274 2
7832 11 Jun 05 17:57 LAG2 9 0 10 0 +- 106 -5 +- 56 1
7832 11 Jun 05 19:37 LAG1 8 0 7 11 +- 39 7 +- 34 3
7832 11 Jun 05 22:16 LAG2 9 0 6 -2 +- 27 -3 +- 47 4
7832 11 Jun 05 23:03 LAG1 14 0 9 -1 +- 18 7 +- 15 3
7832 12 Jun 05 16:04 LAG2 13 0 8 5 +- 18 6 +- 20 3
7832 12 Jun 05 18:13 LAG1 7 0 14 0 +- 63 14 +- 62 2
7832 12 Jun 05 20:07 LAG2 7 0 8 8 +- 160 0 +- 83 1
7832 12 Jun 05 21:39 LAG1 12 0 4 1 +- 32 -1 +- 19 3

Station 7835 (Grasse) (position fixed, acc. 30 mm)
7835 10 Jun 05 21:13 LAG1 8 0 3 9 +- 117 -7 +- 83 1

Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm)
7838 5 Jun 05 16:39 LAG1 19 0 29 26 +- 22 -6 +- 12 7
7838 6 Jun 05 02:49 LAG1 11 0 9 2 +- 29 0 +- 18 9

Station 7839 (Graz) (position fixed, acc. 10 mm)
7839 6 Jun 05 15:17 LAG2 2 0 11 -5 +- 118 21 +- 429 0
7839 6 Jun 05 19:07 LAG2 10 0 10 -3 +- 13 -5 +- 8 1
7839 6 Jun 05 22:43 LAG1 8 0 13 -3 +- 14 6 +- 7 1
7839 6 Jun 05 23:07 LAG2 18 0 15 -4 +- 10 -9 +- 7 1
7839 7 Jun 05 21:19 LAG1 10 0 8 -6 +- 14 -4 +- 8 2
7839 8 Jun 05 04:29 LAG1 13 0 13 15 +- 14 -2 +- 7 1
7839 8 Jun 05 07:45 LAG1 7 0 6 -4 +- 20 -5 +- 13 0

Station 7840 (Herstmonceux) (position fixed, acc. 20 mm)
7840 6 Jun 05 14:55 LAG2 4 0 3 5 +- 145 4 +- 73 1
7840 6 Jun 05 22:45 LAG1 9 0 17 8 +- 22 7 +- 12 1
7840 6 Jun 05 23:03 LAG2 17 0 18 -4 +- 16 -11 +- 12 2
7840 7 Jun 05 02:19 LAG1 19 0 6 1 +- 15 3 +- 8 2
7840 7 Jun 05 05:51 LAG1 15 0 5 4 +- 17 0 +- 12 1
7840 7 Jun 05 09:29 LAG1 5 0 7 9 +- 41 -3 +- 50 2
7840 7 Jun 05 13:25 LAG2 6 0 2 -4 +- 58 4 +- 60 1
7840 7 Jun 05 17:11 LAG2 15 0 12 2 +- 17 8 +- 13 2
7840 7 Jun 05 21:15 LAG2 12 0 3 1 +- 19 -1 +- 16 2
7840 7 Jun 05 21:35 LAG1 3 0 7 -8 +- 38 -15 +- 334 0
7840 8 Jun 05 04:31 LAG1 13 0 17 16 +- 18 -3 +- 11 5
7840 8 Jun 05 08:21 LAG1 5 0 23 1 +- 245 -11 +- 108 1
7840 8 Jun 05 11:33 LAG1 14 0 38 39 +- 18 -12 +- 15 3
7840 8 Jun 05 15:19 LAG2 17 0 15 8 +- 18 6 +- 12 2
7840 8 Jun 05 19:13 LAG2 21 0 12 1 +- 14 -6 +- 8 3
7840 8 Jun 05 23:23 LAG2 12 0 18 -4 +- 20 -12 +- 16 2
7840 8 Jun 05 23:31 LAG1 18 0 10 0 +- 15 -4 +- 8 4
7840 9 Jun 05 03:07 LAG1 18 0 6 5 +- 15 0 +- 9 3
7840 9 Jun 05 06:51 LAG1 9 0 5 10 +- 48 -4 +- 30 2
7840 9 Jun 05 10:03 LAG1 20 0 11 9 +- 14 -4 +- 8 3
7840 9 Jun 05 13:32 LAG2 10 0 3 -2 +- 28 3 +- 26 2
7840 9 Jun 05 17:29 LAG2 14 0 11 12 +- 19 -2 +- 14 2
7840 11 Jun 05 07:35 LAG1 2 0 9 -6 +- 84 -75 +- 435 0
7840 12 Jun 05 11:45 LAG2 14 0 15 11 +- 17 9 +- 18 7
7840 12 Jun 05 23:45 LAG2 8 0 3 3 +- 37 0 +- 47 0

Station 7848 (Ajaccio) (position solved, acc. 30 mm)
7848 5 Jun 05 21:10 LAG2 2 0 5 0 +- 128 5 +- 118 0
7848 6 Jun 05 00:21 LAG1 2 0 22 44 +- 287 18 +- 218 0
7848 8 Jun 05 23:46 LAG1 4 0 10 -15 +- 97 -11 +- 86 7
7848 9 Jun 05 21:38 LAG2 3 0 6 -7 +- 118 -10 +- 115 3
7848 9 Jun 05 22:30 LAG1 6 0 6 1 +- 52 5 +- 56 2
7848 10 Jun 05 01:54 LAG1 3 0 5 3 +- 113 5 +- 104 4
7848 10 Jun 05 19:41 LAG2 5 0 12 -10 +- 50 -12 +- 44 2
7848 11 Jun 05 00:40 LAG1 2 0 12 0 +- 143 27 +- 337 0
7848 11 Jun 05 23:27 LAG1 2 0 5 -35 +- 469 30 +- 413 0

Station 7941 (Matera) (position solved, acc. 10 mm)
7941 8 Jun 05 20:04 LAG2 3 0 2 -13 +- 757 5 +- 310 2
7941 10 Jun 05 21:07 LAG1 1 0 4683 0 +- 0 0 +- 0 0
7941 11 Jun 05 00:43 LAG1 1 0 4551 0 +- 0 0 +- 0 0
7941 11 Jun 05 23:03 LAG1 9 0 1 0 +- 33 0 +- 19 1

Station 8834 (Wettzell) (position fixed, acc. 10 mm)
8834 5 Jun 05 01:33 LAG1 3 0 4 13 +- 307 4 +- 154 0
8834 5 Jun 05 17:03 LAG2 2 0 24 17 +- 180 28 +- 126 0
8834 12 Jun 05 09:33 LAG1 2 0 15 23 +- 411 26 +- 286 0
8834 12 Jun 05 11:57 LAG2 6 0 7 -4 +- 19 12 +- 35 4
8834 12 Jun 05 21:51 LAG1 2 0 45 -45 +- 75 1 +- 302 0
--------------------------------------------------------------------------------



Distribution of daytime, nighttime and twilight passes since Jan 1, 2003:
--------------------------------------------------------------------------
Station System Period Number of Passes
LAGEOS-1 LAGEOS-2
Day/Night/Twil. Day/Night/Twil. Total
--------------------------------------------------------------------------
1824 KIEVLA 040701 - 050404 0/ 24/ 0 0/ 31/ 0 55
1831 LVIL 040815 - 050610 0/ 33/ 0 0/ 43/ 0 76
1864 MD2LAS 040701 - 050607 0/112/ 0 0/110/ 0 222
1873 SIMLAS 040703 - 050612 0/ 40/ 0 0/ 28/ 0 68
1884 RIGLAS 040712 - 050609 0/ 59/ 1 1/ 60/ 5 126
1893 CRMLAS 040705 - 041012 0/ 45/ 0 0/ 35/ 0 80
6405 TIGO 040710 - 050608 12/ 20/ 2 10/ 22/ 2 68
6810 ZIMLAT 040805 - 050612 272/153/ 26 162/146/ 26 785
7080 MLRS25 040701 - 050610 70/ 89/ 5 62/116/ 8 350
7090 ML0514 040716 - 050611 170/534/ 43 182/320/ 36 1285
7105 ML0725 040701 - 050606 1/ 93/ 5 11/128/ 10 248
7110 ML0414 040701 - 050611 121/176/ 24 87/195/ 25 628
7124 ML0819 040705 - 050611 0/ 55/ 0 0/ 18/ 0 73
7231 WUHA01 040701 - 041208 0/ 8/ 0 0/ 20/ 0 28
7237 CHALAS 040702 - 050608 0/178/ 1 0/204/ 1 384
7249 BEJLAS 040701 - 050531 0/118/ 0 0/154/ 0 272
7308 CRLLAS 041201 - 050510 9/ 11/ 2 3/ 16/ 0 41
7355 TROS02 040702 - 050611 0/ 48/ 0 0/ 35/ 0 83
7405 TIGO 040710 - 050606 7/ 31/ 0 3/ 10/ 0 51
7501 ML0616 040701 - 050610 38/ 87/ 4 81/102/ 9 321
7604 BREF 041017 - 041021 0/ 1/ 0 0/ 2/ 0 3
7806 METLAS 040720 - 050301 0/ 16/ 0 0/ 11/ 0 27
7810 ZIMLAT 040701 - 050612 303/178/ 31 181/162/ 28 883
7811 POLLAS 040706 - 050609 0/ 73/ 0 0/ 94/ 0 167
7824 SPNLAS 040701 - 050611 1/137/ 0 0/154/ 3 295
7825 STL3 040807 - 050613 234/360/ 45 244/210/ 33 1126
7832 SALRO 040702 - 050612 156/294/ 21 213/353/ 34 1071
7835 GRASSE 040702 - 050610 0/ 58/ 2 0/ 57/ 3 120
7836 GFZLAS 040701 - 040701 0/ 1/ 0 0/ 0/ 0 1
7837 CHILAS 040704 - 050414 0/104/ 0 0/151/ 2 257
7838 SHOLAS 040701 - 050606 82/143/ 4 90/188/ 10 517
7839 AUSLAS 040701 - 050613 252/201/ 34 114/206/ 30 837
7840 RGOLAS 040701 - 050613 218/142/ 29 116/152/ 25 682
7841 GFZLA3 040702 - 050602 65/ 89/ 20 30/116/ 15 335
7845 GRASLL 040705 - 040920 11/ 14/ 0 3/ 12/ 1 41
7848 FTLR06 050515 - 050611 2/ 13/ 0 2/ 9/ 0 26
7941 MLROnn 040701 - 050611 102/ 93/ 11 106/124/ 17 453
8834 WLRS01 040701 - 050612 294/185/ 33 181/214/ 29 936
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
050606.0 -58.5 +/- 0.1 359.9 +/- 0.1 -32675.15 +/- 0.02
050607.0 -58.9 +/- 0.1 361.4 +/- 0.1 -32674.69 +/- 0.03
050608.0 -58.0 +/- 0.1 362.3 +/- 0.1 -32674.16 +/- 0.04
050609.0 -57.4 +/- 0.1 363.8 +/- 0.1 -32673.49 +/- 0.05
050610.0 -56.3 +/- 0.1 364.9 +/- 0.1 -32673.04 +/- 0.05
050611.0 -55.1 +/- 0.1 366.9 +/- 0.1 -32672.63 +/- 0.06
050612.0 -54.0 +/- 0.1 369.0 +/- 0.1 -32672.39 +/- 0.07
--------------------------------------------------------------



D. COMMENTS

1. The analysis covered in this report is based on a new set of station
coordinates: instead of the solution SSC(DUT)93L05, which was extrapolated
over some 10 years beyond the epoch of the latest observations, the current
analysis relies on the ITRF2000 solution.
Tests performed during the last year show that the rms-of-fit that can be
obtained when using ITRF2000 can be reduced to about 2 cm (instead of the
3+ cm which was achieved with the old model, for present-day epochs). Other
model modifications are to be expected. We hope to serve the community with
this development.

2. As of July 1, 2003, a new computation model and analysis strategy are in use:
in terms of geometric modeling, models for ocean loading and
atmospheric pressure loading have been turned on. The frequency of the
solutions for the Earth Orientation Parameters has been increased to
once per day (rather than once per 3 days). As a consequence, the arc
length has been changed from 10 days to 8 days. Also, the empirical
accelerations acting on the spacecraft are estimated twice per arc
(i.e. for 4-day periods). To absorb (unmodeled) geocenter motion,
3 coefficients of the gravity field model are estimated: C(1,0),
C(1,1) and S(1,1). Finally, the overall weighting scheme for the
individual SLR observations is also modified slightly.

3. As of the same date, provisions for handling the dual-wavelength systems
7405 and 7810 properly have been installed. This is done by introducing
dummy station ids 6405 and 6810 for the observations taken on 2nd wavelength.
The specific analysis results are easily recognizable because the wavelength
has been added to the printout of the station name.

4. As of July 7, 2004, similar provisions for handling the dual-wavelength syste
7941 properly have been installed. This is done by introducing a
dummy station id 6941 for the observations taken on 2nd wavelength.


From: Ron Noomen

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