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SLR-Report No.1412

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Date:2001-12-04 06:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 1412: Delft QL Report, December 04, 2001
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2001-12-04 06:45:00 UTC Message No. 1412
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report, December 04, 2001


WEGENER-2 IERS

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


December 4, 2001


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, Dec 3, 2001.
Questions and comments should be addressed to:

K.F. Wakker
Delft University of Technology
Faculty of Aerospace Engineering
Delft Institute for Earth-Oriented Space Research
Kluyverweg 1
NL-2629 HS Delft
The Netherlands

Telephone: +31-(0)15-2782065/2785377
Telefax : +31-(0)15-2785322
E-mail : ron.noomen@deos.tudelft.nl


A. PASS SUMMARY

The table below gives an overview of the ranging data both on LAGEOS-1 and
LAGEOS-2, as received by the Quick-Look Data Analysis Center (QLDAC) on Mon,
Dec 3, 2001. 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
------------------------------------------------------------------------------
1868 Komsomolsk-na-Amure, Russia 011118 - 011126 2 -
7090 Yarragadee, Australia 011126 - 011130 12 8
7105 Greenbelt, Maryland 011126 - 011128 1 1
7110 Monument Peak, California 011121 - 011128 5 3
7237 Changchun, China 011126 - 011128 2 3
7249 Beijing, China 011129 - 011201 2 -
7810 Zimmerwald, Switzerland 011129 - 011129 1 2
7820 Kunming, China 011128 - 011203 4 3
7824 San Fernando, Spain 011126 - 011203 6 6
7832 Riyad, Saudi Arabia 011126 - 011203 8 10
7835 Grasse, France 011127 - 011203 6 6
7836 Potsdam, Germany 011201 - 011201 1 1
7837 Shanghai Observatory, China 011127 - 011127 1 -
7838 Simosato Observatory, Japan 011126 - 011126 - 1
7839 Graz, Austria 011128 - 011201 6 4
7840 Herstmonceux, United Kingdom 011126 - 011202 9 6
7845 Grasse, France (LLR) 011127 - 011129 3 4
7849 Mount Stromlo, Australia 011128 - 011203 8 4
7941 Matera, Italy (MLRO) 011108 - 011130 4 1
8834 Wettzell, Germany 011201 - 011201 - 1
------ ------ --- ---
TOTAL 011108 - 011203 81 64
------------------------------------------------------------------------------


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, Nov 22, 2001 to Sun, Dec 2, 2001. 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 24 20
Number of Passes 132/126 108/105
Number of Normal Points 1320/1214 1249/1192
RMS of Fit (mm) 27 24
-----------------------------------------------------------------------


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 1868 (Komsomolsk-na-Amure) (Position fixed, acc. 200 mm)
1868 26 Nov 01 20:05 LAG1 6 0 59 1 +- 271 116 +- 635 33

Station 1884 (Riga) (Position fixed, acc. 100 mm)
1884 22 Nov 01 17:25 LAG1 15 0 63 -62 +- 81 -3 +- 68 5

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 24 Nov 01 21:37 LAG2 14 0 10 -9 +- 33 -10 +- 33 3
7080 25 Nov 01 01:31 LAG1 11 0 9 -9 +- 37 -2 +- 30 3
7080 25 Nov 01 01:54 LAG2 8 0 4 -2 +- 39 -5 +- 61 2

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 22 Nov 01 00:13 LAG1 12 0 14 3 +- 28 -13 +- 26 3
7090 22 Nov 01 09:30 LAG1 3 0 6 -39 +- 369 37 +- 343 0
7090 23 Nov 01 11:23 LAG1 12 0 24 -2 +- 27 16 +- 18 3
7090 23 Nov 01 13:13 LAG2 17 0 27 13 +- 27 -10 +- 16 4
7090 23 Nov 01 14:47 LAG1 7 0 13 -3 +- 93 8 +- 79 2
7090 23 Nov 01 17:31 LAG2 17 0 14 -10 +- 23 -9 +- 18 0
7090 23 Nov 01 18:19 LAG1 1 0 37 0 +- 0 0 +- 0 0
7090 23 Nov 01 21:17 LAG1 10 0 13 -22 +- 72 -5 +- 37 2
7090 23 Nov 01 21:45 LAG2 6 0 29 0 +- 296 15 +- 151 0
7090 24 Nov 01 09:57 LAG1 15 0 41 -32 +- 24 19 +- 21 2
7090 24 Nov 01 11:31 LAG2 20 0 36 -30 +- 22 -8 +- 15 8
7090 24 Nov 01 13:19 LAG1 24 0 25 7 +- 19 13 +- 10 2
7090 24 Nov 01 15:23 LAG2 24 0 25 13 +- 19 -14 +- 13 3
7090 24 Nov 01 16:55 LAG1 9 0 16 -17 +- 33 17 +- 56 1
7090 24 Nov 01 19:51 LAG2 9 0 19 -10 +- 34 10 +- 26 2
7090 24 Nov 01 20:25 LAG1 8 0 4 -8 +- 132 6 +- 65 1
7090 25 Nov 01 12:03 LAG1 10 0 16 2 +- 31 10 +- 20 2
7090 25 Nov 01 13:35 LAG2 20 0 15 1 +- 21 -9 +- 13 1
7090 25 Nov 01 15:37 LAG1 7 0 8 -5 +- 36 6 +- 39 3
7090 25 Nov 01 17:45 LAG2 17 0 14 -15 +- 26 -3 +- 22 2
7090 25 Nov 01 18:53 LAG1 14 0 14 -16 +- 30 3 +- 26 2
7090 25 Nov 01 22:05 LAG2 11 0 18 15 +- 37 22 +- 35 0
7090 25 Nov 01 22:25 LAG1 13 0 4 4 +- 55 -2 +- 29 3
7090 26 Nov 01 20:27 LAG2 10 0 9 -19 +- 77 15 +- 53 0
7090 26 Nov 01 20:47 LAG1 19 0 19 -18 +- 22 4 +- 13 1
7090 27 Nov 01 09:43 LAG1 5 0 11 -16 +- 185 22 +- 153 1
7090 27 Nov 01 12:47 LAG1 16 0 12 4 +- 31 8 +- 18 5
7090 27 Nov 01 13:52 LAG2 9 0 6 -1 +- 51 -2 +- 25 1
7090 27 Nov 01 16:23 LAG1 9 0 5 0 +- 32 8 +- 51 1
7090 27 Nov 01 18:09 LAG2 20 0 15 -15 +- 22 0 +- 19 4
7090 27 Nov 01 19:37 LAG1 11 0 23 -21 +- 29 15 +- 30 1
7090 28 Nov 01 11:37 LAG1 7 0 6 3 +- 70 -1 +- 60 1
7090 28 Nov 01 12:03 LAG2 12 0 22 10 +- 28 -21 +- 27 1
7090 28 Nov 01 15:03 LAG1 12 0 7 -7 +- 27 1 +- 31 1
7090 28 Nov 01 15:59 LAG2 25 0 29 -15 +- 19 -17 +- 14 2
7090 28 Nov 01 18:22 LAG1 8 0 34 -38 +- 41 9 +- 56 2
7090 28 Nov 01 20:21 LAG2 14 0 10 -3 +- 29 -10 +- 26 0
7090 28 Nov 01 21:33 LAG1 4 0 43 -53 +- 690 -4 +- 287 0
7090 29 Nov 01 10:03 LAG2 10 0 6 -7 +- 58 -10 +- 54 3
7090 29 Nov 01 10:25 LAG1 7 0 18 -17 +- 50 17 +- 33 1
7090 29 Nov 01 13:39 LAG1 12 0 24 7 +- 32 20 +- 25 2
7090 29 Nov 01 14:11 LAG2 7 0 2 0 +- 36 -1 +- 42 2
7090 30 Nov 01 00:05 LAG1 5 0 71 44 +- 109 26 +- 100 1

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 22 Nov 01 00:09 LAG2 2 0 15 -309 +-4777 123 +-1996 0
7105 26 Nov 01 16:13 LAG1 6 0 44 -39 +- 102 -5 +- 86 1
7105 28 Nov 01 22:46 LAG2 1 0 49 0 +- 0 0 +- 0 0

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 27 Nov 01 01:57 LAG2 7 0 20 -27 +- 54 -25 +- 47 0
7110 27 Nov 01 02:27 LAG1 7 0 29 -28 +- 53 0 +- 57 1
7110 27 Nov 01 16:03 LAG2 3 0 11 -58 +- 857 29 +- 531 1
7110 28 Nov 01 01:13 LAG1 6 0 33 -49 +- 57 24 +- 39 2
7110 28 Nov 01 04:19 LAG2 6 0 11 31 +- 116 -32 +- 139 4
7110 28 Nov 01 04:51 LAG1 2 0 54 43 +- 276 53 +-1212 0

Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm)
7210 22 Nov 01 03:21 LAG2 11 0 31 -16 +- 36 -14 +- 28 5
7210 22 Nov 01 05:38 LAG1 7 0 37 34 +- 41 10 +- 24 10
7210 22 Nov 01 07:31 LAG2 2 0 54 56 +- 103 -17 +- 441 0

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 26 Nov 01 11:01 LAG2 12 0 19 14 +- 50 1 +- 42 12
7237 26 Nov 01 11:39 LAG1 4 0 16 -15 +- 139 42 +- 323 11
7237 27 Nov 01 09:15 LAG2 10 0 15 6 +- 56 -9 +- 38 7
7237 27 Nov 01 09:55 LAG1 14 0 22 -4 +- 63 11 +- 40 6
7237 28 Nov 01 11:25 LAG2 5 0 22 26 +- 120 15 +- 306 4

Station 7249 (Beijing) (Position solved, acc. 50 mm)
7249 29 Nov 01 10:57 LAG1 5 0 16 0 +- 100 15 +- 176 14
7249 1 Dec 01 11:41 LAG1 4 0 29 99 +- 468 81 +- 399 23

Station 7403 (Arequipa) (Position solved, acc. 10 mm)
7403 22 Nov 01 01:34 LAG1 3 0 4 0 +- 250 0 +- 213 4

Station 7501 (Hartebeesthoek) (Position fixed, acc. 10 mm)
7501 25 Nov 01 17:13 LAG2 9 0 12 -9 +- 32 5 +- 34 4
7501 25 Nov 01 19:41 LAG1 11 0 12 -1 +- 36 11 +- 30 2

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 29 Nov 01 07:51 LAG1 9 0 50 -51 +- 90 0 +- 41 2
7810 29 Nov 01 08:43 LAG2 11 0 13 -5 +- 87 10 +- 57 2
7810 29 Nov 01 13:03 LAG2 3 0 11 -5 +- 644 19 +- 781 0

Station 7820 (Kunming) (Position solved, acc. 80 mm)
7820 28 Nov 01 11:29 LAG2 13 0 13 -2 +- 81 0 +- 55 13
7820 28 Nov 01 12:05 LAG1 7 0 49 -22 +- 105 -16 +- 50 9
7820 30 Nov 01 11:29 LAG2 9 0 18 35 +- 259 14 +- 157 11
7820 30 Nov 01 12:57 LAG1 9 0 16 -11 +- 106 7 +- 128 4
7820 1 Dec 01 11:27 LAG1 14 0 32 35 +- 86 23 +- 55 7

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 23 Nov 01 20:18 LAG2 1 0 20 0 +- 0 0 +- 0 0
7824 25 Nov 01 20:17 LAG2 8 0 25 31 +- 163 7 +- 132 10
7824 26 Nov 01 18:32 LAG2 5 0 4 -4 +- 133 -5 +- 142 2
7824 26 Nov 01 18:55 LAG1 12 0 12 -4 +- 43 -7 +- 28 3
7824 27 Nov 01 20:41 LAG2 2 0 24 -1 +-1032 37 +-1681 0
7824 28 Nov 01 19:03 LAG2 9 0 41 -31 +- 182 -5 +- 107 1
7824 28 Nov 01 19:51 LAG1 11 0 11 13 +- 58 -3 +- 40 3
7824 29 Nov 01 18:15 LAG1 6 0 108 72 +- 392 -16 +- 176 4
7824 29 Nov 01 20:59 LAG2 13 0 160 110 +- 73 65 +- 93 37
7824 30 Nov 01 06:25 LAG2 3 0 581 521 +-2974 -32 +-1616 4
7824 30 Nov 01 06:43 LAG1 6 0 438 338 +- 282 -57 +- 158 4*CHK*
7824 1 Dec 01 19:15 LAG1 3 0 348 339 +- 418 -10 +- 433 0

Station 7832 (Riyad) (Position fixed, acc. 20 mm)
7832 24 Nov 01 10:26 LAG2 14 0 18 18 +- 30 -5 +- 45 4
7832 24 Nov 01 14:23 LAG1 9 0 10 -9 +- 36 2 +- 38 4
7832 24 Nov 01 14:41 LAG2 10 0 25 -25 +- 36 -2 +- 37 3
7832 25 Nov 01 06:35 LAG1 6 0 10 8 +- 68 3 +- 95 1
7832 25 Nov 01 12:35 LAG2 14 0 8 -2 +- 44 -6 +- 38 6
7832 25 Nov 01 13:05 LAG1 11 0 11 2 +- 42 8 +- 35 2
7832 26 Nov 01 05:25 LAG1 7 0 21 -22 +- 224 19 +- 102 3
7832 26 Nov 01 06:18 LAG2 20 0 14 2 +- 26 -9 +- 20 7
7832 26 Nov 01 10:38 LAG2 18 0 14 13 +- 25 -4 +- 30 5
7832 26 Nov 01 14:47 LAG2 7 0 19 -18 +- 49 -14 +- 34 5
7832 26 Nov 01 15:19 LAG1 6 0 42 -41 +- 108 0 +- 84 1
7832 27 Nov 01 07:21 LAG1 6 0 18 5 +- 79 -17 +- 110 16
7832 27 Nov 01 08:25 LAG2 16 0 9 -10 +- 35 -10 +- 37 3
7832 27 Nov 01 12:53 LAG2 19 0 10 -6 +- 24 5 +- 20 4
7832 27 Nov 01 13:43 LAG1 17 0 18 -16 +- 26 4 +- 16 9
7832 28 Nov 01 06:51 LAG2 6 0 42 -18 +- 148 -23 +- 140 1
7832 1 Dec 01 09:01 LAG2 18 0 32 -30 +- 26 -25 +- 32 7
7832 1 Dec 01 12:03 LAG1 7 0 18 4 +- 67 16 +- 76 3
7832 1 Dec 01 15:15 LAG1 8 0 24 -21 +- 108 1 +- 64 4

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 22 Nov 01 14:11 LAG2 6 0 28 -32 +- 69 10 +- 125 1
7835 22 Nov 01 17:15 LAG1 13 0 8 -8 +- 44 -5 +- 29 3
7835 22 Nov 01 17:55 LAG2 19 0 27 -18 +- 29 10 +- 19 5
7835 23 Nov 01 09:23 LAG1 7 0 26 -23 +- 101 -1 +- 77 7
7835 23 Nov 01 19:43 LAG1 14 0 25 -29 +- 56 3 +- 42 2
7835 23 Nov 01 20:11 LAG2 9 0 5 0 +- 42 2 +- 86 4
7835 24 Nov 01 17:57 LAG1 13 0 37 -54 +- 77 -11 +- 40 7
7835 24 Nov 01 18:35 LAG2 5 0 18 -46 +- 140 24 +- 82 1
7835 25 Nov 01 16:17 LAG2 12 0 23 -21 +- 66 1 +- 47 2
7835 25 Nov 01 16:41 LAG1 12 0 20 -19 +- 37 -3 +- 17 8
7835 27 Nov 01 16:33 LAG2 16 0 20 -14 +- 32 9 +- 26 2
7835 27 Nov 01 17:41 LAG1 17 0 28 -32 +- 44 3 +- 24 4
7835 28 Nov 01 16:05 LAG1 17 0 31 -11 +- 30 -13 +- 14 7
7835 28 Nov 01 18:57 LAG2 10 0 24 -28 +- 89 3 +- 75 1
7835 29 Nov 01 08:29 LAG1 6 0 18 -150 +- 596 61 +- 223 0
7835 29 Nov 01 08:55 LAG2 12 0 4 -9 +- 126 5 +- 69 4
7835 29 Nov 01 12:49 LAG2 9 0 7 0 +- 44 11 +- 68 1
7835 29 Nov 01 14:45 LAG1 16 0 11 -1 +- 31 5 +- 17 7
7835 29 Nov 01 16:45 LAG2 12 0 19 -17 +- 38 -1 +- 27 6
7835 29 Nov 01 18:27 LAG1 9 0 7 0 +- 43 8 +- 54 2

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 23 Nov 01 05:38 LAG1 8 0 3 2 +- 53 -1 +- 66 2
7836 1 Dec 01 16:02 LAG1 5 0 67 -403 +- 393 176 +- 177 33
7836 1 Dec 01 17:12 LAG2 4 0 35 -4 +- 93 -53 +- 162 8

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 22 Nov 01 09:49 LAG1 8 0 40 -34 +- 77 26 +- 41 7
7837 22 Nov 01 11:01 LAG2 10 0 71 -69 +- 124 -1 +- 79 5
7837 23 Nov 01 09:09 LAG2 12 0 62 -96 +- 134 22 +- 77 5
7837 23 Nov 01 11:53 LAG1 9 0 59 -51 +- 62 14 +- 57 8
7837 27 Nov 01 10:03 LAG1 4 0 84 7 +- 156 114 +- 236 48

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 22 Nov 01 06:59 LAG2 5 0 39 -34 +- 82 -14 +- 182 5
7838 22 Nov 01 09:31 LAG1 22 0 24 -12 +- 26 8 +- 14 12
7838 22 Nov 01 10:38 LAG2 23 0 9 -1 +- 26 4 +- 19 7
7838 24 Nov 01 10:21 LAG1 14 0 28 -24 +- 47 3 +- 33 7
7838 24 Nov 01 10:53 LAG2 21 0 7 -1 +- 28 3 +- 22 5
7838 25 Nov 01 09:02 LAG2 22 0 25 -23 +- 26 4 +- 17 7
7838 26 Nov 01 08:09 LAG1 4 0 13 42 +- 729 -12 +- 310 3
7838 26 Nov 01 11:09 LAG2 16 0 35 -31 +- 31 -11 +- 31 7

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 22 Nov 01 03:07 LAG1 10 0 7 18 +- 93 11 +- 84 3
7839 22 Nov 01 06:07 LAG2 4 0 20 20 +- 48 -4 +- 226 0
7839 22 Nov 01 06:45 LAG1 4 0 55 146 +-1241 32 +- 447 1
7839 22 Nov 01 09:37 LAG2 21 0 20 19 +- 21 4 +- 13 1
7839 22 Nov 01 10:23 LAG1 17 0 25 20 +- 24 -13 +- 14 3
7839 23 Nov 01 12:05 LAG2 12 0 33 14 +- 29 15 +- 17 2
7839 23 Nov 01 12:31 LAG1 11 0 26 24 +- 32 -15 +- 19 1
7839 23 Nov 01 15:51 LAG1 15 0 34 24 +- 25 -11 +- 14 1
7839 23 Nov 01 15:55 LAG2 15 0 18 10 +- 48 15 +- 27 2
7839 23 Nov 01 19:26 LAG1 16 0 22 -22 +- 25 -1 +- 22 2
7839 23 Nov 01 20:01 LAG2 9 0 13 -11 +- 34 -7 +- 51 6
7839 24 Nov 01 17:55 LAG1 17 0 13 -11 +- 27 0 +- 13 5
7839 24 Nov 01 18:09 LAG2 13 0 20 -9 +- 27 12 +- 17 3
7839 25 Nov 01 02:55 LAG1 7 0 34 29 +- 84 7 +- 127 3
7839 25 Nov 01 13:41 LAG1 5 0 20 64 +- 434 -19 +- 185 0
7839 25 Nov 01 16:19 LAG2 18 0 26 15 +- 22 14 +- 15 1
7839 25 Nov 01 16:35 LAG1 17 0 13 5 +- 23 -4 +- 10 7
7839 25 Nov 01 20:31 LAG1 16 0 29 -31 +- 27 6 +- 38 5
7839 26 Nov 01 04:45 LAG1 23 0 38 35 +- 20 6 +- 10 2
7839 28 Nov 01 10:19 LAG2 28 0 24 22 +- 18 6 +- 10 2
7839 28 Nov 01 14:30 LAG2 14 0 31 27 +- 42 -2 +- 24 4
7839 29 Nov 01 08:23 LAG1 5 0 8 -27 +- 445 14 +- 185 1
7839 29 Nov 01 08:31 LAG2 18 0 39 36 +- 23 5 +- 14 2
7839 29 Nov 01 11:47 LAG1 5 0 3 -22 +- 307 10 +- 150 1
7839 29 Nov 01 15:15 LAG1 3 0 41 24 +-1253 6 +- 540 2
7839 29 Nov 01 18:21 LAG1 19 0 14 6 +- 22 8 +- 16 1
7839 1 Dec 01 15:57 LAG1 6 0 37 59 +- 148 -10 +- 67 3
7839 1 Dec 01 16:59 LAG2 7 0 12 -2 +- 39 -12 +- 37 1
7839 1 Dec 01 19:09 LAG1 13 0 22 20 +- 29 -3 +- 30 2

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 22 Nov 01 17:21 LAG1 13 0 13 15 +- 35 3 +- 24 1
7840 22 Nov 01 18:02 LAG2 8 0 10 -9 +- 39 7 +- 39 2
7840 23 Nov 01 05:39 LAG1 8 0 22 23 +- 39 -13 +- 67 1
7840 23 Nov 01 08:19 LAG2 3 0 10 35 +- 409 -45 +- 425 1
7840 24 Nov 01 18:27 LAG1 3 0 14 -11 +- 156 -5 +- 328 1
7840 24 Nov 01 18:31 LAG2 3 0 21 -28 +- 371 6 +- 333 3
7840 26 Nov 01 08:37 LAG1 9 0 10 -7 +- 41 -2 +- 26 2
7840 26 Nov 01 10:13 LAG2 15 0 9 7 +- 29 5 +- 22 3
7840 26 Nov 01 12:03 LAG1 13 0 12 -5 +- 29 -8 +- 24 2
7840 26 Nov 01 14:17 LAG2 18 0 3 2 +- 25 -1 +- 18 2
7840 26 Nov 01 15:27 LAG1 14 0 23 -13 +- 28 -10 +- 17 2
7840 26 Nov 01 18:31 LAG2 10 0 17 -17 +- 37 0 +- 51 1
7840 26 Nov 01 19:08 LAG1 9 0 23 -23 +- 39 0 +- 37 2
7840 28 Nov 01 05:51 LAG1 12 0 37 38 +- 32 -9 +- 34 2
7840 28 Nov 01 09:21 LAG1 16 0 11 -3 +- 27 -6 +- 17 2
7840 28 Nov 01 12:51 LAG1 11 0 16 10 +- 32 -10 +- 31 1
7840 1 Dec 01 13:05 LAG2 4 0 11 10 +- 63 -7 +- 43 3
7840 1 Dec 01 15:39 LAG1 14 0 20 17 +- 29 -3 +- 17 5
7840 1 Dec 01 16:59 LAG2 15 0 25 -20 +- 28 -11 +- 25 2
7840 1 Dec 01 19:23 LAG1 10 0 1 1 +- 34 0 +- 45 1

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 22 Nov 01 09:43 LAG2 22 0 22 -13 +- 23 -6 +- 14 12
7845 22 Nov 01 13:49 LAG1 17 0 16 -13 +- 26 -5 +- 17 3
7845 22 Nov 01 17:15 LAG1 21 0 18 -8 +- 23 -7 +- 12 4
7845 22 Nov 01 17:57 LAG2 25 0 37 -8 +- 22 23 +- 13 11
7845 27 Nov 01 16:24 LAG2 28 0 41 -1 +- 20 21 +- 11 9
7845 27 Nov 01 17:23 LAG1 29 1 27 -13 +- 20 -6 +- 9 18
7845 28 Nov 01 14:34 LAG2 26 0 14 -9 +- 22 0 +- 12 11
7845 28 Nov 01 16:05 LAG1 16 0 30 -12 +- 27 -11 +- 12 12
7845 28 Nov 01 18:41 LAG2 21 0 14 -3 +- 25 9 +- 19 9
7845 29 Nov 01 16:54 LAG2 16 0 22 -24 +- 31 10 +- 23 6
7845 29 Nov 01 18:31 LAG1 8 0 23 -23 +- 41 13 +- 54 7

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 22 Nov 01 09:05 LAG1 10 0 21 -16 +- 30 16 +- 32 3
7849 22 Nov 01 11:24 LAG2 14 0 11 14 +- 37 8 +- 24 3
7849 22 Nov 01 12:29 LAG1 8 3 46 26 +- 131 13 +- 89 12
7849 22 Nov 01 15:57 LAG1 2 0 4 8 +- 169 24 +- 690 0
7849 22 Nov 01 16:08 LAG2 7 0 7 39 +- 248 -19 +- 138 3
7849 23 Nov 01 11:12 LAG1 1 0 3 0 +- 0 0 +- 0 0
7849 23 Nov 01 13:53 LAG2 8 0 15 12 +- 44 4 +- 49 1
7849 23 Nov 01 18:02 LAG1 1 0 10 0 +- 0 0 +- 0 0
7849 23 Nov 01 18:28 LAG2 2 0 45 -658 +-2548 348 +-1266 0
7849 24 Nov 01 07:59 LAG2 5 0 17 -17 +- 44 -3 +- 122 1
7849 24 Nov 01 09:43 LAG1 13 0 8 -5 +- 27 0 +- 14 5
7849 24 Nov 01 13:14 LAG1 9 0 32 29 +- 33 -4 +- 33 6
7849 25 Nov 01 08:25 LAG1 11 0 9 8 +- 29 -2 +- 18 3
7849 25 Nov 01 11:49 LAG1 16 0 35 22 +- 26 -13 +- 18 3
7849 25 Nov 01 13:57 LAG2 16 0 15 8 +- 24 11 +- 22 2
7849 25 Nov 01 15:26 LAG1 5 1 40 56 +- 85 -28 +- 111 6
7849 25 Nov 01 18:09 LAG2 11 0 12 14 +- 36 9 +- 30 3
7849 25 Nov 01 18:35 LAG1 8 0 13 15 +- 73 1 +- 51 1
7849 28 Nov 01 07:47 LAG1 14 0 31 7 +- 29 -21 +- 23 2
7849 28 Nov 01 08:21 LAG2 10 0 11 11 +- 31 -5 +- 45 3
7849 28 Nov 01 18:31 LAG1 2 0 5 -46 +-1726 22 +- 754 0
7849 28 Nov 01 21:35 LAG1 13 0 29 26 +- 26 15 +- 26 5
7849 29 Nov 01 13:43 LAG1 5 0 8 5 +- 154 1 +- 137 3
7849 30 Nov 01 08:33 LAG2 7 0 7 -5 +- 42 0 +- 74 4
7849 30 Nov 01 08:47 LAG1 13 0 14 -16 +- 33 6 +- 23 5
7849 30 Nov 01 18:55 LAG1 9 0 23 -18 +- 32 -16 +- 35 3
7849 1 Dec 01 14:47 LAG2 6 0 28 -17 +- 77 15 +- 108 2

Station 7941 (Matera) (Position solved, acc. 10 mm)
7941 27 Nov 01 07:05 LAG1 13 0 14 2 +- 45 9 +- 25 3
7941 27 Nov 01 10:39 LAG1 11 0 9 0 +- 30 7 +- 31 6
7941 30 Nov 01 06:29 LAG1 11 0 23 -31 +- 86 -23 +- 40 7

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 1 Dec 01 12:57 LAG2 10 0 47 -55 +- 53 -7 +- 41 3
--------------------------------------------------------------------------------



Distribution of daytime, nighttime and twilight passes since Nov 1, 2000:
--------------------------------------------------------------------------
Station System Period Number of Passes
LAGEOS-1 LAGEOS-2
Day/Night/Twil. Day/Night/Twil. Total
--------------------------------------------------------------------------
1824 KIEVLA 010704 - 011121 0/ 11/ 0 0/ 16/ 0 27
1863 MDNLAS 010808 - 011118 0/ 9/ 0 0/ 5/ 0 14
1864 MD2LAS 011025 - 011120 0/ 2/ 0 0/ 6/ 0 8
1868 KOMLAS 010910 - 011126 0/ 7/ 0 0/ 5/ 0 12
1873 SIMLAS 010706 - 011014 0/ 31/ 0 0/ 41/ 0 72
1884 RIGLAS 010702 - 011122 0/ 26/ 0 0/ 29/ 4 59
1893 CRMLAS 010702 - 011026 0/ 27/ 0 0/ 33/ 0 60
7080 MLRS25 010703 - 011125 48/ 71/ 7 68/100/ 11 305
7090 ML0514 010701 - 011130 85/154/ 16 109/118/ 15 497
7105 ML0725 010701 - 011128 91/106/ 12 59/140/ 11 419
7110 ML0414 010701 - 011128 36/160/ 10 33/197/ 18 454
7210 HOLLAS 010703 - 011122 2/ 75/ 3 10/ 71/ 6 167
7231 WUHA01 010704 - 010806 0/ 2/ 0 0/ 1/ 0 3
7237 CHALAS 010708 - 011128 0/115/ 1 0/152/ 1 269
7249 BEJLAS 010704 - 011201 0/ 39/ 0 0/ 57/ 0 96
7339 TATLAS 010702 - 011012 27/ 1/ 0 16/ 0/ 0 44
7356 TROS01 010824 - 011119 0/ 50/ 0 0/ 43/ 0 93
7403 TLRS3 010704 - 011122 4/ 46/ 1 2/ 46/ 2 101
7501 ML0616 010701 - 011125 56/ 74/ 1 81/ 58/ 8 278
7548 CAGLAS 010718 - 011102 0/ 4/ 0 0/ 3/ 0 7
7806 METLAS 010702 - 011119 0/ 15/ 3 0/ 13/ 1 32
7810 ZIMLAT 010701 - 011129 134/ 87/ 13 70/102/ 11 417
7811 POLLAS 010701 - 011119 0/ 40/ 0 0/ 43/ 0 83
7820 YSLR01 011012 - 011203 0/ 5/ 0 0/ 4/ 0 9
7824 SPNLAS 010705 - 011203 0/ 25/ 0 0/ 31/ 0 56
7832 SALRO 010701 - 011203 128/ 37/ 9 116/ 33/ 9 332
7835 GRASSE 010701 - 011203 66/130/ 19 39/143/ 14 411
7836 GFZLAS 010701 - 011201 0/ 43/ 4 1/ 48/ 6 102
7837 CHILAS 010702 - 011127 0/ 67/ 1 0/ 91/ 1 160
7838 SHOLAS 010704 - 011126 2/ 45/ 4 6/ 67/ 1 125
7839 AUSLAS 010702 - 011201 83/ 97/ 16 58/ 88/ 14 356
7840 RGOLAS 010701 - 011202 156/ 96/ 18 70/108/ 12 460
7845 GRASLL 010701 - 011129 54/ 46/ 11 20/ 52/ 4 187
7849 MSLO01 010701 - 011203 52/130/ 9 71/ 60/ 15 337
7941 MLROnn 010703 - 011130 43/ 16/ 4 18/ 16/ 3 100
8834 WLRS01 010701 - 011201 90/ 38/ 9 44/ 84/ 14 279
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
011126.0 -105.3 +/- 0.1 184.1 +/- 0.1 -32090.37 +/- 0.01
011129.0 -111.4 +/- 0.1 192.4 +/- 0.2 -32093.25 +/- 0.01
--------------------------------------------------------------



D. COMMENTS

1. This is a QLDAC analysis report in a new style. Although our old report
served quite well for observation campaigns, we have received many requests
to adjust our report to the current situation (i.e. a permanent global SLR
network with few mobile systems), and to spend more attention to the quality
of the data taken by the global network.
The most important element of the report is the table with statistics for
each individual data pass. Although the numbers will speak for themselves,
we must give a warning here that some of you may be disappointed to see that
their station appears to be suffering from a data problem. However, we are
using a model for station positions that is already 7 years old, and which
may be responsible for errors in the station position in the order of 1-5 cm.
We intend to introduce a new coordinates solution in the course of this
millennium.
Readers of this report are invited to provide us suggestions for further
improvements.


”/DGFI3/home/slreport/mbox” complete
From: Ron Noomen

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