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SLR-Report No.1425

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Date:2001-12-11 07:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 1425: Delft QL Report, December 11, 2001
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2001-12-11 07:45:00 UTC Message No. 1425
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report, December 11, 2001


WEGENER-2 IERS

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


December 11, 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 10, 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 10, 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
------------------------------------------------------------------------------
1884 Riga, Latvia 011204 - 011204 1 -
7080 McDonald Obs., Fort Davis, TX 011130 - 011210 12 15
7090 Yarragadee, Australia 011201 - 011209 23 21
7105 Greenbelt, Maryland 011201 - 011209 16 17
7110 Monument Peak, California 011201 - 011209 11 12
7210 Haleakala Obs., Maui, Hawaii 011207 - 011207 1 -
7237 Changchun, China 011130 - 011209 6 6
7249 Beijing, China 011201 - 011206 2 -
7356 Lhasa, China (TROS) 011205 - 011206 2 -
7501 Hartebeesthoek, SA (MOB-6) 011130 - 011208 4 3
7806 Metsahovi, Finland 011204 - 011204 2 -
7810 Zimmerwald, Switzerland 011207 - 011209 4 3
7820 Kunming, China 011130 - 011206 5 4
7824 San Fernando, Spain 011130 - 011208 6 4
7832 Riyad, Saudi Arabia 011201 - 011204 5 7
7835 Grasse, France 011203 - 011210 12 6
7836 Potsdam, Germany 011201 - 011205 2 1
7838 Simosato Observatory, Japan 011201 - 011209 7 5
7839 Graz, Austria 011201 - 011210 8 6
7840 Herstmonceux, United Kingdom 011201 - 011210 23 18
7845 Grasse, France (LLR) 011205 - 011210 5 4
7849 Mount Stromlo, Australia 011130 - 011209 8 7
7941 Matera, Italy (MLRO) 011108 - 011204 7 2
8834 Wettzell, Germany 011201 - 011209 4 5
------ ------ --- ---
TOTAL 011108 - 011210 176 146
------------------------------------------------------------------------------


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 29, 2001 to Sun, Dec 9, 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 19
Number of Passes 148/144 129/123
Number of Normal Points 1445/1399 1388/1347
RMS of Fit (mm) 32 32
-----------------------------------------------------------------------


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 1884 (Riga) (Position fixed, acc. 100 mm)
1884 4 Dec 01 15:11 LAG1 10 0 27 -24 +- 100 -8 +- 97 3

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 30 Nov 01 13:55 LAG2 6 0 17 -12 +- 235 -18 +- 149 2
7080 30 Nov 01 14:23 LAG1 6 0 24 23 +- 53 -2 +- 73 2
7080 30 Nov 01 22:27 LAG2 4 0 13 1 +- 379 -8 +- 280 0
7080 1 Dec 01 00:19 LAG1 8 0 25 -24 +- 116 0 +- 62 5
7080 1 Dec 01 02:33 LAG2 7 0 22 18 +- 50 -11 +- 96 1
7080 1 Dec 01 13:11 LAG1 6 0 24 22 +- 127 1 +- 95 2
7080 1 Dec 01 21:01 LAG2 3 0 19 57 +-1352 -20 +- 736 1
7080 1 Dec 01 23:11 LAG1 10 0 13 -16 +- 43 11 +- 37 4
7080 2 Dec 01 00:31 LAG2 15 0 20 -16 +- 32 -17 +- 25 2
7080 2 Dec 01 14:02 LAG2 6 0 22 12 +- 105 -7 +- 77 1
7080 2 Dec 01 15:02 LAG1 9 0 14 -7 +- 60 6 +- 43 1
7080 2 Dec 01 18:20 LAG2 15 0 16 14 +- 28 3 +- 23 4
7080 2 Dec 01 22:49 LAG2 12 0 37 -19 +- 41 -12 +- 25 2
7080 3 Dec 01 01:09 LAG1 12 0 12 -11 +- 32 6 +- 20 2
7080 3 Dec 01 02:52 LAG2 9 0 16 -5 +- 56 -15 +- 75 1
7080 3 Dec 01 23:59 LAG1 10 0 19 -18 +- 46 0 +- 29 5
7080 4 Dec 01 00:54 LAG2 11 0 32 -29 +- 37 -3 +- 24 4
7080 4 Dec 01 14:15 LAG2 9 0 18 7 +- 188 -5 +- 97 5
7080 4 Dec 01 15:52 LAG1 7 0 18 -21 +- 69 -3 +- 64 1
7080 4 Dec 01 18:31 LAG2 19 0 13 0 +- 25 9 +- 19 2

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 29 Nov 01 10:03 LAG2 10 0 13 -20 +- 58 -24 +- 54 3
7090 29 Nov 01 10:25 LAG1 7 0 25 -35 +- 50 16 +- 33 2
7090 29 Nov 01 13:39 LAG1 12 0 24 -19 +- 32 5 +- 25 2
7090 29 Nov 01 14:11 LAG2 7 0 32 28 +- 36 -18 +- 42 0
7090 30 Nov 01 00:05 LAG1 5 0 46 56 +- 109 -10 +- 100 1
7090 1 Dec 01 10:39 LAG2 4 0 22 -10 +- 267 -10 +- 244 7
7090 1 Dec 01 10:59 LAG1 13 0 22 5 +- 26 13 +- 17 1
7090 1 Dec 01 14:13 LAG2 9 0 14 16 +- 96 1 +- 59 1
7090 1 Dec 01 14:31 LAG1 9 0 29 -27 +- 34 5 +- 46 1
7090 1 Dec 01 17:53 LAG1 4 0 37 -37 +- 50 1 +- 65 1
7090 1 Dec 01 18:35 LAG2 17 0 16 -15 +- 24 2 +- 23 1
7090 2 Dec 01 09:37 LAG1 14 0 34 -1 +- 25 21 +- 16 3
7090 2 Dec 01 12:19 LAG2 12 0 64 36 +- 43 -20 +- 27 5
7090 2 Dec 01 13:05 LAG1 11 0 50 5 +- 29 24 +- 14 3
7090 2 Dec 01 16:31 LAG2 20 0 4 -3 +- 21 0 +- 17 2
7090 2 Dec 01 16:39 LAG1 4 0 20 -21 +- 53 13 +- 201 3
7090 2 Dec 01 19:47 LAG1 9 0 21 -12 +- 38 12 +- 42 1
7090 3 Dec 01 10:26 LAG2 20 0 11 3 +- 22 -7 +- 14 2
7090 3 Dec 01 11:39 LAG1 18 0 24 28 +- 26 9 +- 14 5
7090 3 Dec 01 14:31 LAG2 8 0 15 1 +- 33 8 +- 19 0
7090 3 Dec 01 15:19 LAG1 5 0 21 -20 +- 60 2 +- 127 2
7090 3 Dec 01 18:27 LAG1 11 0 8 3 +- 28 -7 +- 31 2
7090 3 Dec 01 18:51 LAG2 21 0 34 -1 +- 21 26 +- 16 1
7090 3 Dec 01 23:05 LAG2 11 1 17 17 +- 31 1 +- 39 2
7090 5 Dec 01 09:07 LAG1 9 0 34 -39 +- 36 12 +- 24 4
7090 5 Dec 01 10:36 LAG2 20 0 29 -8 +- 22 -20 +- 15 2
7090 5 Dec 01 12:39 LAG1 11 0 49 39 +- 29 18 +- 21 1
7090 5 Dec 01 14:41 LAG2 21 0 38 -3 +- 21 -25 +- 14 2
7090 5 Dec 01 16:01 LAG1 10 0 28 -26 +- 30 17 +- 45 3
7090 5 Dec 01 19:05 LAG2 17 0 29 -24 +- 23 9 +- 14 5
7090 5 Dec 01 19:27 LAG1 9 0 44 -51 +- 71 5 +- 50 1
7090 6 Dec 01 09:09 LAG2 6 0 97 -90 +- 81 -12 +- 124 2
7090 6 Dec 01 11:17 LAG1 13 0 49 13 +- 27 26 +- 15 2
7090 6 Dec 01 13:01 LAG2 18 0 1 -1 +- 33 0 +- 20 0
7090 6 Dec 01 14:49 LAG1 4 0 51 -54 +- 58 -15 +- 172 0
7090 6 Dec 01 17:05 LAG2 18 0 54 -27 +- 22 38 +- 18 2
7090 6 Dec 01 18:01 LAG1 6 0 18 -22 +- 49 -31 +- 99 2
7090 7 Dec 01 09:50 LAG1 15 0 35 -31 +- 25 12 +- 13 5
7090 7 Dec 01 10:55 LAG2 18 0 22 0 +- 22 -13 +- 14 2
7090 7 Dec 01 13:18 LAG1 13 0 23 17 +- 27 13 +- 18 1
7090 7 Dec 01 15:07 LAG2 14 0 25 -17 +- 25 -25 +- 30 0
7090 7 Dec 01 19:19 LAG2 14 0 18 -18 +- 34 0 +- 27 1
7090 7 Dec 01 23:39 LAG2 3 0 81 82 +- 100 -3 +- 400 0
7090 7 Dec 01 23:43 LAG1 7 0 57 84 +- 79 -34 +- 80 1

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 1 Dec 01 16:33 LAG2 7 0 25 -20 +- 37 21 +- 86 1
7105 1 Dec 01 20:51 LAG2 6 0 23 -37 +- 63 21 +- 38 0
7105 1 Dec 01 22:51 LAG1 16 0 29 -27 +- 24 5 +- 11 4
7105 2 Dec 01 23:11 LAG2 7 0 66 -96 +- 229 15 +- 120 2
7105 3 Dec 01 01:17 LAG1 13 0 40 -42 +- 28 7 +- 34 5
7105 3 Dec 01 10:10 LAG1 10 0 13 20 +- 57 -18 +- 47 7
7105 3 Dec 01 12:33 LAG2 5 0 24 14 +- 64 26 +- 50 2
7105 3 Dec 01 13:35 LAG1 5 0 8 -22 +- 127 -21 +- 110 1
7105 3 Dec 01 20:51 LAG2 12 0 47 -33 +- 30 18 +- 25 2
7105 3 Dec 01 23:41 LAG1 11 0 47 -44 +- 33 -2 +- 17 8
7105 4 Dec 01 01:05 LAG2 4 0 73 -67 +- 112 -16 +- 266 1
7105 4 Dec 01 10:46 LAG2 9 0 37 28 +- 34 17 +- 40 2
7105 4 Dec 01 12:27 LAG1 9 0 22 -21 +- 94 0 +- 49 2
7105 4 Dec 01 15:07 LAG2 2 0 5 -15 +-1400 14 +-1006 0
7105 4 Dec 01 15:45 LAG1 5 0 22 -22 +- 44 -10 +- 78 5
7105 4 Dec 01 18:53 LAG2 3 0 34 -23 +- 726 6 +- 452 1
7105 4 Dec 01 19:11 LAG1 6 0 8 12 +- 70 -15 +- 80 3
7105 4 Dec 01 22:23 LAG1 17 0 17 -17 +- 24 1 +- 11 5
7105 4 Dec 01 23:03 LAG2 15 0 56 -56 +- 26 0 +- 24 3
7105 5 Dec 01 10:43 LAG1 7 0 13 -39 +- 119 -19 +- 74 2
7105 5 Dec 01 13:03 LAG2 8 0 14 -5 +- 87 15 +- 70 0
7105 5 Dec 01 14:19 LAG1 10 0 17 -9 +- 30 -12 +- 24 4
7105 5 Dec 01 16:55 LAG2 4 0 34 -12 +- 416 16 +- 322 4
7105 5 Dec 01 17:44 LAG1 6 0 11 -3 +- 54 -17 +- 72 3
7105 5 Dec 01 20:57 LAG2 11 1 50 -67 +- 112 -9 +- 62 5
7105 6 Dec 01 00:39 LAG1 12 0 21 -20 +- 27 -9 +- 32 2
7105 6 Dec 01 10:53 LAG2 12 0 36 -36 +- 33 0 +- 39 4
7105 6 Dec 01 13:01 LAG1 10 0 62 -42 +- 31 -25 +- 21 3
7105 6 Dec 01 15:07 LAG2 5 0 52 -53 +- 43 42 +- 130 2

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 1 Dec 01 13:01 LAG1 15 0 5 -6 +- 30 4 +- 24 2
7110 2 Dec 01 03:11 LAG1 2 0 25 -279 +-6038 126 +-2498 0
7110 3 Dec 01 01:15 LAG1 16 0 56 -55 +- 24 13 +- 14 7
7110 3 Dec 01 02:33 LAG2 8 0 16 -17 +- 47 -24 +- 49 1
7110 5 Dec 01 02:03 LAG1 18 0 28 -26 +- 24 7 +- 13 12
7110 5 Dec 01 02:47 LAG2 10 0 22 9 +- 30 -17 +- 23 2
7110 5 Dec 01 12:33 LAG2 14 0 46 -46 +- 25 -1 +- 32 2
7110 5 Dec 01 16:41 LAG2 10 0 25 -6 +- 37 -17 +- 31 1
7110 5 Dec 01 21:05 LAG2 10 1 43 -35 +- 72 -7 +- 69 0
7110 6 Dec 01 23:31 LAG2 4 0 6 -53 +- 608 24 +- 312 1
7110 6 Dec 01 23:41 LAG1 5 0 30 -30 +- 190 0 +- 99 2
7110 7 Dec 01 02:51 LAG1 12 0 36 -41 +- 31 -19 +- 29 3
7110 7 Dec 01 03:15 LAG2 9 0 13 -14 +- 56 1 +- 73 0
7110 7 Dec 01 15:19 LAG1 9 1 5 0 +- 67 4 +- 45 2
7110 7 Dec 01 17:12 LAG2 3 0 35 -275 +- 760 162 +- 502 5
7110 8 Dec 01 01:05 LAG2 8 0 21 11 +- 42 -10 +- 33 1
7110 8 Dec 01 01:31 LAG1 11 0 19 -16 +- 29 6 +- 26 2
7110 8 Dec 01 23:37 LAG2 9 0 85 -68 +- 115 -10 +- 66 1

Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm)
7210 7 Dec 01 06:26 LAG1 8 0 25 11 +- 38 -15 +- 33 12

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 30 Nov 01 09:30 LAG1 15 0 15 -4 +- 55 -4 +- 30 9
7237 1 Dec 01 09:41 LAG2 17 0 27 24 +- 43 2 +- 37 11
7237 3 Dec 01 09:01 LAG1 14 0 29 5 +- 63 -19 +- 37 6
7237 3 Dec 01 09:57 LAG2 17 0 46 42 +- 48 3 +- 41 10
7237 3 Dec 01 21:17 LAG1 7 0 36 -33 +- 65 25 +- 118 5
7237 5 Dec 01 09:35 LAG1 14 0 28 23 +- 49 -6 +- 33 7
7237 5 Dec 01 10:11 LAG2 12 0 59 60 +- 58 -3 +- 57 7
7237 5 Dec 01 20:11 LAG2 3 0 38 74 +- 491 216 +- 997 12
7237 7 Dec 01 10:23 LAG2 6 0 42 50 +- 119 20 +- 221 9
7237 7 Dec 01 10:35 LAG1 7 0 33 32 +- 90 0 +- 122 6

Station 7249 (Beijing) (Position solved, acc. 50 mm)
7249 29 Nov 01 10:57 LAG1 5 0 25 18 +- 100 46 +- 176 14
7249 1 Dec 01 11:41 LAG1 4 0 42 80 +- 468 94 +- 399 23
7249 6 Dec 01 11:58 LAG1 11 0 36 13 +- 53 -27 +- 68 28

Station 7356 (Lhasa) (Position solved, acc. 10 mm)
7356 5 Dec 01 13:13 LAG1 12 1 33 -3 +- 35 -4 +- 30 33
7356 6 Dec 01 12:07 LAG1 4 0 99999 490 +- 120 99999 +- 131 2*CHK*

Station 7501 (Hartebeesthoek) (Position fixed, acc. 10 mm)
7501 30 Nov 01 19:35 LAG2 5 0 28 15 +- 181 -6 +- 89 1
7501 30 Nov 01 19:53 LAG1 12 0 26 15 +- 33 13 +- 30 1
7501 1 Dec 01 15:09 LAG1 6 0 37 28 +- 74 13 +- 95 2
7501 5 Dec 01 18:33 LAG2 9 0 5 -8 +- 80 2 +- 53 1
7501 5 Dec 01 19:59 LAG1 14 0 22 11 +- 25 18 +- 25 1
7501 6 Dec 01 06:19 LAG1 6 0 80 90 +- 89 -14 +- 117 2
7501 8 Dec 01 17:11 LAG2 3 0 8 -102 +-2254 38 +- 907 3

Station 7806 (Metsahovi) (Position fixed, acc. 30 mm)
7806 4 Dec 01 15:07 LAG1 14 0 38 -36 +- 33 7 +- 25 8
7806 4 Dec 01 18:59 LAG1 8 0 51 -59 +- 54 29 +- 73 8

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 29 Nov 01 07:51 LAG1 9 0 65 -35 +- 90 -16 +- 41 5
7810 29 Nov 01 08:43 LAG2 11 0 26 -38 +- 87 17 +- 57 4
7810 29 Nov 01 13:03 LAG2 3 0 11 -6 +- 644 21 +- 781 0
7810 7 Dec 01 08:04 LAG1 6 0 64 52 +- 655 -44 +- 251 2
7810 7 Dec 01 09:33 LAG2 18 0 36 -21 +- 53 28 +- 37 3
7810 7 Dec 01 11:06 LAG1 16 0 42 -25 +- 51 -20 +- 36 2
7810 7 Dec 01 13:29 LAG2 20 0 53 -29 +- 45 27 +- 30 2
7810 7 Dec 01 14:30 LAG1 15 0 28 -19 +- 56 -9 +- 35 2

Station 7820 (Kunming) (Position solved, acc. 80 mm)
7820 30 Nov 01 11:29 LAG2 9 0 52 62 +- 259 7 +- 157 11
7820 30 Nov 01 12:57 LAG1 9 0 24 27 +- 106 10 +- 128 5
7820 1 Dec 01 11:27 LAG1 14 0 28 29 +- 86 20 +- 55 8
7820 2 Dec 01 11:49 LAG2 11 0 34 -18 +- 104 14 +- 101 15
7820 3 Dec 01 12:37 LAG1 6 0 37 -51 +- 294 14 +- 253 9
7820 4 Dec 01 11:25 LAG1 5 0 9 60 +-1422 -27 +- 570 3
7820 4 Dec 01 12:03 LAG2 8 0 19 -22 +- 192 -5 +- 186 8
7820 6 Dec 01 11:55 LAG1 8 0 43 -10 +- 96 -41 +- 125 22
7820 6 Dec 01 22:03 LAG2 3 0 28 11 +- 277 78 +-1238 2

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 29 Nov 01 18:15 LAG1 6 0 135 71 +- 392 -29 +- 176 4
7824 29 Nov 01 21:01 LAG2 8 0 186 194 +- 113 -18 +- 212 7*CHK*
7824 30 Nov 01 19:05 LAG2 2 0 306 266 +-1243 -75 +-2317 0
7824 1 Dec 01 19:15 LAG1 3 0 330 312 +- 418 -19 +- 433 0
7824 2 Dec 01 19:09 LAG2 7 0 354 336 +- 142 -19 +- 139 8*CHK*
7824 3 Dec 01 20:01 LAG1 15 0 24 -19 +- 40 -9 +- 37 2
7824 4 Dec 01 19:34 LAG2 12 0 30 -24 +- 80 -5 +- 69 2
7824 5 Dec 01 17:35 LAG1 2 0 47 92 +-2051 -26 +-1207 0
7824 5 Dec 01 21:11 LAG1 6 0 14 62 +- 353 -43 +- 292 1
7824 6 Dec 01 19:30 LAG1 8 0 24 -14 +- 53 -27 +- 81 2
7824 8 Dec 01 20:02 LAG2 3 0 89 96 +- 228 -22 +- 617 4
7824 8 Dec 01 20:33 LAG1 2 0 129 572 +-2426 -569 +-3105 0

Station 7832 (Riyad) (Position fixed, acc. 20 mm)
7832 1 Dec 01 09:01 LAG2 18 0 8 6 +- 26 0 +- 32 5
7832 1 Dec 01 12:03 LAG1 7 0 14 8 +- 67 8 +- 76 3
7832 1 Dec 01 15:15 LAG1 8 0 22 -41 +- 108 -13 +- 64 4
7832 2 Dec 01 07:00 LAG2 8 0 16 -26 +- 88 -37 +- 95 2
7832 2 Dec 01 11:19 LAG2 21 0 23 23 +- 24 6 +- 21 4
7832 2 Dec 01 13:56 LAG1 17 0 23 10 +- 27 10 +- 16 5
7832 2 Dec 01 15:35 LAG2 12 0 54 -55 +- 31 -4 +- 35 5
7832 3 Dec 01 12:47 LAG1 8 0 44 49 +- 53 -8 +- 56 3
7832 4 Dec 01 07:11 LAG2 21 1 16 -5 +- 24 -1 +- 24 15
7832 4 Dec 01 11:43 LAG2 15 0 18 10 +- 27 14 +- 29 7
7832 4 Dec 01 14:45 LAG1 17 0 29 -29 +- 27 2 +- 16 7
7832 4 Dec 01 15:57 LAG2 6 0 63 -62 +- 54 -1 +- 70 2

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 29 Nov 01 08:29 LAG1 6 0 26 -93 +- 596 25 +- 223 0
7835 29 Nov 01 08:55 LAG2 12 0 21 -52 +- 126 19 +- 69 4
7835 29 Nov 01 12:49 LAG2 9 0 7 1 +- 44 11 +- 68 1
7835 29 Nov 01 14:45 LAG1 16 0 7 -1 +- 31 -1 +- 17 6
7835 29 Nov 01 16:45 LAG2 12 0 12 1 +- 38 7 +- 27 4
7835 29 Nov 01 18:27 LAG1 9 0 6 5 +- 43 -1 +- 54 2
7835 3 Dec 01 08:53 LAG2 11 0 13 -10 +- 62 2 +- 45 2
7835 3 Dec 01 09:33 LAG1 15 0 28 -26 +- 33 -11 +- 24 5
7835 5 Dec 01 17:33 LAG2 16 0 5 -2 +- 36 2 +- 28 5
7835 6 Dec 01 08:52 LAG1 11 0 44 25 +- 38 15 +- 15 2
7835 6 Dec 01 12:43 LAG1 9 0 69 -37 +- 132 -17 +- 72 1
7835 6 Dec 01 19:41 LAG1 4 0 63 -61 +- 113 -6 +- 301 1
7835 7 Dec 01 07:47 LAG1 10 0 8 -1 +- 43 -3 +- 24 4
7835 7 Dec 01 09:28 LAG2 8 0 19 -12 +- 57 7 +- 47 3
7835 7 Dec 01 13:39 LAG2 20 0 21 -10 +- 28 13 +- 20 5
7835 7 Dec 01 14:33 LAG1 16 0 16 -16 +- 34 0 +- 21 3
7835 7 Dec 01 17:49 LAG2 11 0 7 5 +- 42 2 +- 56 1
7835 7 Dec 01 18:11 LAG1 16 0 5 7 +- 47 -2 +- 29 2
7835 8 Dec 01 16:51 LAG1 9 0 37 -9 +- 69 33 +- 51 0

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 1 Dec 01 16:02 LAG1 5 0 77 -439 +- 393 182 +- 177 33
7836 1 Dec 01 17:12 LAG2 4 0 23 -7 +- 93 -25 +- 162 8
7836 5 Dec 01 17:18 LAG1 9 0 5 1 +- 45 1 +- 46 5

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 1 Dec 01 09:45 LAG2 14 0 21 -19 +- 34 -3 +- 28 10
7838 2 Dec 01 07:52 LAG2 18 0 17 -12 +- 29 -9 +- 22 5
7838 2 Dec 01 10:03 LAG1 17 0 13 -5 +- 30 2 +- 21 11
7838 4 Dec 01 07:29 LAG1 3 0 15 -38 +- 327 -21 +- 279 1
7838 4 Dec 01 08:11 LAG2 17 0 15 -15 +- 33 7 +- 24 5
7838 4 Dec 01 10:59 LAG1 9 0 27 -31 +- 54 -10 +- 73 3
7838 6 Dec 01 08:39 LAG1 5 0 18 -111 +- 762 48 +- 292 4
7838 7 Dec 01 06:23 LAG2 13 0 21 21 +- 45 15 +- 32 10
7838 7 Dec 01 10:23 LAG1 4 0 16 6 +- 344 16 +- 261 1
7838 8 Dec 01 08:33 LAG2 21 0 33 10 +- 27 21 +- 20 5
7838 8 Dec 01 09:19 LAG1 8 0 15 -14 +- 176 14 +- 89 5

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 29 Nov 01 08:23 LAG1 5 0 17 22 +- 445 -16 +- 185 1
7839 29 Nov 01 08:31 LAG2 18 0 22 16 +- 23 7 +- 14 4
7839 29 Nov 01 11:47 LAG1 5 0 2 10 +- 307 -5 +- 150 1
7839 29 Nov 01 15:15 LAG1 3 0 26 33 +-1253 -2 +- 540 2
7839 29 Nov 01 18:21 LAG1 19 0 14 14 +- 22 0 +- 16 1
7839 1 Dec 01 15:57 LAG1 6 0 15 25 +- 148 -4 +- 67 2
7839 1 Dec 01 16:59 LAG2 7 0 17 -1 +- 39 15 +- 37 1
7839 1 Dec 01 19:09 LAG1 13 0 10 -9 +- 29 -10 +- 30 2
7839 7 Dec 01 07:39 LAG1 10 0 38 29 +- 30 -14 +- 17 3

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 1 Dec 01 13:05 LAG2 4 0 39 15 +- 63 19 +- 43 3
7840 1 Dec 01 15:39 LAG1 14 0 14 7 +- 29 -6 +- 17 2
7840 1 Dec 01 16:59 LAG2 15 0 25 -22 +- 28 13 +- 25 1
7840 1 Dec 01 19:23 LAG1 10 0 28 -28 +- 34 -1 +- 45 2
7840 2 Dec 01 07:03 LAG2 7 0 12 2 +- 59 -17 +- 100 3
7840 2 Dec 01 07:27 LAG1 9 0 7 6 +- 39 0 +- 37 3
7840 4 Dec 01 07:17 LAG2 11 0 18 12 +- 34 11 +- 39 3
7840 4 Dec 01 08:11 LAG1 17 0 30 -10 +- 26 -15 +- 15 3
7840 4 Dec 01 11:21 LAG2 6 0 34 6 +- 57 20 +- 39 2
7840 4 Dec 01 11:48 LAG1 4 0 10 0 +- 109 -14 +- 153 2
7840 4 Dec 01 15:17 LAG1 8 0 20 26 +- 53 -7 +- 33 2
7840 4 Dec 01 15:39 LAG2 7 0 11 -24 +- 169 8 +- 105 4
7840 5 Dec 01 17:19 LAG1 8 0 4 2 +- 38 -1 +- 23 3
7840 5 Dec 01 17:25 LAG2 10 0 15 -12 +- 35 -10 +- 35 4
7840 6 Dec 01 11:21 LAG2 20 0 19 14 +- 24 -8 +- 17 2
7840 7 Dec 01 07:37 LAG1 14 0 27 15 +- 29 -15 +- 17 4
7840 7 Dec 01 09:27 LAG2 17 0 27 7 +- 26 17 +- 18 2
7840 7 Dec 01 11:13 LAG1 11 0 14 13 +- 33 -8 +- 27 2
7840 7 Dec 01 13:45 LAG2 12 0 21 8 +- 39 11 +- 32 4
7840 7 Dec 01 14:35 LAG1 14 0 16 16 +- 29 -2 +- 19 2
7840 7 Dec 01 17:49 LAG2 5 0 3 -4 +- 67 4 +- 152 2
7840 7 Dec 01 18:07 LAG1 16 0 12 12 +- 27 0 +- 20 3
7840 8 Dec 01 06:15 LAG1 16 0 20 2 +- 27 -14 +- 19 2
7840 8 Dec 01 07:34 LAG2 18 0 36 -28 +- 25 18 +- 21 5
7840 8 Dec 01 13:21 LAG1 10 0 44 26 +- 36 26 +- 35 2
7840 8 Dec 01 15:41 LAG2 18 0 12 12 +- 25 2 +- 20 2
7840 8 Dec 01 16:41 LAG1 18 0 56 12 +- 25 33 +- 15 2

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 29 Nov 01 16:54 LAG2 16 0 22 -4 +- 31 18 +- 23 4
7845 29 Nov 01 18:31 LAG1 8 0 18 -17 +- 41 3 +- 54 7
7845 5 Dec 01 09:05 LAG2 31 0 9 0 +- 19 0 +- 11 9
7845 6 Dec 01 09:15 LAG1 11 0 42 -10 +- 64 30 +- 38 3
7845 6 Dec 01 12:24 LAG1 19 0 67 -46 +- 26 -21 +- 16 8
7845 6 Dec 01 15:23 LAG2 22 0 67 -12 +- 23 37 +- 13 17

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 29 Nov 01 13:43 LAG1 5 0 34 -20 +- 154 -12 +- 137 3
7849 30 Nov 01 08:33 LAG2 7 0 13 -14 +- 42 -6 +- 74 4
7849 30 Nov 01 08:47 LAG1 13 0 24 -20 +- 33 -3 +- 23 6
7849 30 Nov 01 18:55 LAG1 9 0 14 -12 +- 32 -7 +- 35 2
7849 1 Dec 01 14:47 LAG2 6 0 6 11 +- 77 17 +- 108 2
7849 3 Dec 01 07:57 LAG1 17 0 26 -4 +- 26 -17 +- 16 6
7849 3 Dec 01 15:12 LAG1 4 0 14 17 +- 214 -3 +- 192 2
7849 3 Dec 01 15:31 LAG2 3 0 83 222 +-1525 -71 +- 774 3
7849 3 Dec 01 18:32 LAG1 2 0 22 8 +- 290 18 +- 380 0
7849 5 Dec 01 07:11 LAG2 3 0 144 -13 +- 71 -448 +- 214 36*CHK*
7849 5 Dec 01 08:53 LAG1 7 0 10 -22 +- 97 -11 +- 65 5
7849 8 Dec 01 09:24 LAG2 1 0 30 0 +- 0 0 +- 0 0

Station 7941 (Matera) (Position solved, acc. 10 mm)
7941 30 Nov 01 06:29 LAG1 11 0 16 -16 +- 86 -13 +- 40 8
7941 2 Dec 01 03:49 LAG1 8 1 37 -21 +- 97 15 +- 88 1
7941 3 Dec 01 08:53 LAG2 15 0 18 -5 +- 40 -12 +- 27 11
7941 3 Dec 01 12:53 LAG1 5 0 41 35 +- 189 -3 +- 124 0
7941 4 Dec 01 08:05 LAG1 21 0 16 -12 +- 21 -4 +- 11 9

Station 8834 (Wettzell) (Position fixed, acc. 10 mm)
8834 1 Dec 01 12:57 LAG2 10 0 71 -45 +- 53 22 +- 41 3
8834 8 Dec 01 06:13 LAG1 21 0 37 -33 +- 21 -5 +- 12 8
8834 8 Dec 01 07:45 LAG2 10 0 58 -65 +- 36 12 +- 25 6
8834 8 Dec 01 09:53 LAG1 3 0 44 20 +- 74 13 +- 35 1
8834 8 Dec 01 15:56 LAG2 16 0 19 -25 +- 32 13 +- 22 2
--------------------------------------------------------------------------------



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 - 011204 0/ 27/ 0 0/ 29/ 4 60
1893 CRMLAS 010702 - 011026 0/ 27/ 0 0/ 33/ 0 60
7080 MLRS25 010703 - 011210 54/ 74/ 10 78/105/ 11 332
7090 ML0514 010701 - 011209 90/170/ 18 115/131/ 17 541
7105 ML0725 010701 - 011209 99/114/ 12 70/145/ 12 452
7110 ML0414 010701 - 011209 39/168/ 10 38/203/ 19 477
7210 HOLLAS 010703 - 011207 2/ 76/ 3 10/ 71/ 6 168
7231 WUHA01 010704 - 010806 0/ 2/ 0 0/ 1/ 0 3
7237 CHALAS 010708 - 011209 0/121/ 1 0/158/ 1 281
7249 BEJLAS 010704 - 011206 0/ 40/ 0 0/ 57/ 0 97
7339 TATLAS 010702 - 011012 27/ 1/ 0 16/ 0/ 0 44
7356 TROS01 010824 - 011206 0/ 52/ 0 0/ 43/ 0 95
7403 TLRS3 010704 - 011122 4/ 46/ 1 2/ 46/ 2 101
7501 ML0616 010701 - 011208 58/ 76/ 1 81/ 60/ 9 285
7548 CAGLAS 010718 - 011102 0/ 4/ 0 0/ 3/ 0 7
7806 METLAS 010702 - 011204 0/ 17/ 3 0/ 13/ 1 34
7810 ZIMLAT 010701 - 011209 137/ 88/ 13 72/103/ 11 424
7811 POLLAS 010701 - 011119 0/ 40/ 0 0/ 43/ 0 83
7820 YSLR01 011012 - 011206 0/ 7/ 0 0/ 6/ 0 13
7824 SPNLAS 010705 - 011208 0/ 27/ 1 0/ 33/ 0 61
7832 SALRO 010701 - 011204 128/ 38/ 9 118/ 34/ 9 336
7835 GRASSE 010701 - 011210 73/134/ 19 42/145/ 14 427
7836 GFZLAS 010701 - 011205 0/ 44/ 4 1/ 48/ 6 103
7837 CHILAS 010702 - 011127 0/ 67/ 1 0/ 91/ 1 160
7838 SHOLAS 010704 - 011209 3/ 50/ 5 7/ 69/ 3 137
7839 AUSLAS 010702 - 011210 86/ 99/ 17 61/ 90/ 14 367
7840 RGOLAS 010701 - 011210 167/103/ 20 77/111/ 17 495
7845 GRASLL 010701 - 011210 58/ 47/ 11 23/ 52/ 5 196
7849 MSLO01 010701 - 011209 54/131/ 10 72/ 62/ 16 345
7941 MLROnn 010703 - 011204 45/ 17/ 4 19/ 16/ 3 104
8834 WLRS01 010701 - 011209 92/ 39/ 10 47/ 85/ 14 287
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
011202.0 -120.8 +/- 0.1 199.3 +/- 0.1 -32095.05 +/- 0.01
011205.0 -128.3 +/- 0.1 206.4 +/- 0.1 -32095.92 +/- 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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