Welcome >  Mailing Lists >  SLR-Report No.790

SLR-Report No.790

Back to Overview

Date:2001-03-20 11:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 790: Delft QL Report, March 20, 2001
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2001-03-20 11:45:00 UTC Message No. 790
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report, March 20, 2001


WEGENER-2 IERS

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


March 20, 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, Mar 19, 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,
Mar 19, 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
------------------------------------------------------------------------------
7080 McDonald Obs., Fort Davis, TX 010313 - 010319 2 1
7090 Yarragadee, Australia 010313 - 010319 11 11
7105 Greenbelt, Maryland 010312 - 010318 9 5
7110 Monument Peak, California 010313 - 010319 24 13
7210 Haleakala Obs., Maui, Hawaii 010314 - 010316 4 4
7237 Changchun, China 010314 - 010318 7 3
7249 Beijing, China 010314 - 010317 6 2
7501 Hartebeesthoek, SA (MOB-6) 010312 - 010317 11 5
7810 Zimmerwald, Switzerland 010313 - 010318 3 2
7811 Borowiec, Poland 010313 - 010316 4 2
7820 Kunming, China 010313 - 010313 - 2
7824 San Fernando, Spain 010313 - 010316 2 4
7832 Riyad, Saudi Arabia 010316 - 010318 1 3
7836 Potsdam, Germany 010313 - 010315 3 3
7837 Shanghai Observatory, China 010312 - 010313 2 2
7838 Simosato Observatory, Japan 010312 - 010318 4 4
7839 Graz, Austria 010310 - 010318 15 12
7840 Herstmonceux, United Kingdom 010312 - 010319 5 5
7845 Grasse, France (LLR) 010309 - 010319 8 8
7849 Mount Stromlo, Australia 010312 - 010319 12 6
------ ------ --- ---
TOTAL 010309 - 010319 133 97
------------------------------------------------------------------------------


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, Mar 8, 2001 to Sun, Mar 18, 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 20 21
Number of Passes 161/159 117/114
Number of Normal Points 1720/1642 1379/1312
RMS of Fit (mm) 36 39
-----------------------------------------------------------------------


Residual statistics per station. The header line for each station shows
the station id, its name, whether the position is solved for or not and the
measurement accuracy in mm. Rejected observations are not used for the
calculation of the rms-of-fit, the biases or the scatter. The latter holds
w.r.t. the residual trend line described by the bias estimates. Uncertainties
are 3-sigma values.

--------------------------------------------------------------------------------
Date Time Sat. Obs. RMS Range Bias Time Bias Scatter
tot/rej (mm) (mm) (us) (mm)
--------------------------------------------------------------------------------
Station 1884 (Riga) (Position fixed, acc. 100 mm)
1884 8 Mar 01 02:23 LAG1 8 0 25 8 +- 111 -14 +- 76 10
1884 8 Mar 01 20:55 LAG2 14 0 72 -70 +- 83 -2 +- 83 16
1884 8 Mar 01 21:30 LAG1 18 0 35 3 +- 73 -21 +- 44 5
1884 9 Mar 01 01:01 LAG1 16 0 35 24 +- 78 -15 +- 50 7

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 10 Mar 01 02:35 LAG2 8 0 26 20 +- 50 -10 +- 67 2
7080 10 Mar 01 04:05 LAG1 6 0 48 44 +- 44 42 +- 83 13
7080 10 Mar 01 10:39 LAG1 4 0 65 -31 +- 219 27 +- 173 4
7080 10 Mar 01 14:20 LAG1 4 0 73 67 +- 77 17 +- 174 3
7080 11 Mar 01 18:41 LAG2 8 0 14 43 +- 114 -28 +- 79 2
7080 13 Mar 01 09:59 LAG1 13 0 20 19 +- 31 7 +- 20 4
7080 16 Mar 01 12:53 LAG1 15 0 3 -1 +- 32 0 +- 23 3

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 8 Mar 01 08:19 LAG1 3 0 11 166 +-1224 -72 +- 517 7
7090 8 Mar 01 11:19 LAG1 20 0 44 45 +- 21 -7 +- 15 6
7090 8 Mar 01 14:13 LAG2 12 0 138 134 +- 29 -12 +- 45 4*CHK*
7090 8 Mar 01 18:01 LAG2 23 0 32 -30 +- 20 -1 +- 11 9
7090 9 Mar 01 10:03 LAG1 18 0 29 30 +- 27 -1 +- 15 5
7090 9 Mar 01 16:07 LAG2 22 0 44 31 +- 21 -15 +- 13 2
7090 10 Mar 01 08:31 LAG1 12 0 86 -38 +- 49 29 +- 28 2
7090 10 Mar 01 12:15 LAG1 9 0 93 96 +- 33 26 +- 60 3*CHK*
7090 10 Mar 01 14:25 LAG2 18 0 61 62 +- 23 -15 +- 22 2
7090 10 Mar 01 18:15 LAG2 24 0 34 -28 +- 19 6 +- 12 13
7090 11 Mar 01 21:07 LAG2 7 0 33 -39 +- 163 4 +- 111 1
7090 11 Mar 01 23:23 LAG1 12 1 24 0 +- 30 21 +- 26 4
7090 12 Mar 01 00:49 LAG2 14 0 24 17 +- 27 18 +- 21 4
7090 12 Mar 01 02:52 LAG1 3 0 46 -29 +- 73 45 +- 165 4
7090 12 Mar 01 06:09 LAG1 9 0 42 -43 +- 40 3 +- 48 3
7090 13 Mar 01 08:27 LAG1 8 0 18 -13 +- 200 13 +- 85 2
7090 13 Mar 01 11:35 LAG1 17 0 21 18 +- 23 -11 +- 21 2
7090 13 Mar 01 16:47 LAG2 21 0 25 -10 +- 24 -11 +- 15 3
7090 13 Mar 01 20:37 LAG1 13 0 26 -18 +- 27 15 +- 29 2
7090 13 Mar 01 21:01 LAG2 12 0 14 -12 +- 28 -17 +- 47 2
7090 14 Mar 01 10:07 LAG1 19 0 63 -1 +- 23 -33 +- 12 5
7090 14 Mar 01 14:49 LAG2 14 0 14 -10 +- 27 -3 +- 17 4
7090 15 Mar 01 08:59 LAG1 2 0 3 6 +- 531 4 +- 598 0
7090 15 Mar 01 16:49 LAG2 21 0 7 3 +- 21 -3 +- 11 3
7090 16 Mar 01 10:57 LAG1 21 0 12 0 +- 21 -8 +- 14 1
7090 16 Mar 01 14:59 LAG2 17 0 64 -64 +- 24 -1 +- 18 9
7090 16 Mar 01 19:03 LAG2 26 0 65 36 +- 18 -44 +- 14 9
7090 16 Mar 01 20:03 LAG1 11 0 62 -56 +- 33 12 +- 42 2
7090 17 Mar 01 09:35 LAG1 16 0 20 3 +- 24 10 +- 12 2
7090 17 Mar 01 13:11 LAG2 17 0 48 -48 +- 23 6 +- 26 3
7090 17 Mar 01 17:01 LAG2 21 0 20 20 +- 22 2 +- 14 7

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 8 Mar 01 02:15 LAG2 22 0 37 -36 +- 20 -5 +- 10 4
7105 8 Mar 01 03:26 LAG1 1 0 19 0 +- 0 0 +- 0 0
7105 8 Mar 01 06:23 LAG1 7 0 21 11 +- 44 -16 +- 61 3
7105 8 Mar 01 09:34 LAG1 17 0 20 15 +- 27 -11 +- 14 5
7105 9 Mar 01 00:19 LAG2 14 0 10 14 +- 39 8 +- 24 4
7105 9 Mar 01 22:29 LAG2 18 0 10 -6 +- 22 7 +- 18 1
7105 10 Mar 01 00:15 LAG1 16 0 3 0 +- 24 0 +- 13 3
7105 10 Mar 01 02:33 LAG2 14 0 59 -44 +- 25 -24 +- 16 6
7105 10 Mar 01 07:01 LAG1 11 0 35 -17 +- 41 15 +- 32 1
7105 10 Mar 01 10:35 LAG1 15 0 32 4 +- 25 21 +- 18 2
7105 10 Mar 01 20:41 LAG2 16 0 28 -21 +- 34 26 +- 23 4
7105 10 Mar 01 22:55 LAG1 19 0 30 -28 +- 23 13 +- 13 6
7105 11 Mar 01 00:35 LAG2 21 0 2 0 +- 21 0 +- 11 2
7105 11 Mar 01 02:21 LAG1 14 0 17 17 +- 29 11 +- 21 2
7105 11 Mar 01 04:41 LAG2 5 0 18 -73 +- 251 -41 +- 174 2
7105 11 Mar 01 05:59 LAG1 9 0 32 9 +- 63 18 +- 49 1
7105 11 Mar 01 23:03 LAG2 9 0 15 -23 +- 83 6 +- 60 1
7105 12 Mar 01 00:59 LAG1 17 0 8 1 +- 23 -4 +- 12 2
7105 12 Mar 01 02:45 LAG2 18 0 44 -39 +- 24 -5 +- 15 11
7105 12 Mar 01 04:29 LAG1 14 0 14 -9 +- 25 -9 +- 23 2
7105 12 Mar 01 07:45 LAG1 12 0 5 1 +- 27 -2 +- 12 3
7105 12 Mar 01 11:19 LAG1 12 0 37 -35 +- 34 2 +- 29 2
7105 12 Mar 01 17:07 LAG2 6 0 21 -1 +- 235 12 +- 132 4
7105 13 Mar 01 22:21 LAG1 17 0 9 2 +- 24 -6 +- 16 1
7105 13 Mar 01 22:55 LAG2 24 0 21 -17 +- 19 -4 +- 12 7
7105 14 Mar 01 01:47 LAG1 8 0 41 -15 +- 37 -20 +- 17 1
7105 14 Mar 01 05:13 LAG1 13 0 42 19 +- 27 -32 +- 25 2
7105 14 Mar 01 08:35 LAG1 5 0 40 0 +- 69 -24 +- 42 0
7105 14 Mar 01 12:31 LAG1 5 0 129 -188 +- 210 51 +- 176 7
7105 14 Mar 01 21:07 LAG1 10 0 57 67 +- 46 -15 +- 50 1
7105 14 Mar 01 21:27 LAG2 4 0 7 -22 +- 502 17 +- 301 1
7105 15 Mar 01 00:41 LAG1 10 0 51 -31 +- 41 -18 +- 31 1
7105 15 Mar 01 01:05 LAG2 16 0 29 -20 +- 24 11 +- 12 11
7105 15 Mar 01 03:59 LAG1 6 0 26 4 +- 41 -26 +- 45 1

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 8 Mar 01 06:17 LAG2 7 0 75 -79 +- 39 -13 +- 40 3
7110 8 Mar 01 13:23 LAG1 6 0 71 80 +- 114 6 +- 78 2
7110 13 Mar 01 03:25 LAG1 18 0 37 -19 +- 22 20 +- 13 4
7110 13 Mar 01 04:47 LAG2 7 0 18 -14 +- 37 -8 +- 20 3
7110 13 Mar 01 06:55 LAG1 6 0 17 -5 +- 39 17 +- 41 5
7110 13 Mar 01 10:13 LAG1 7 0 12 -8 +- 36 11 +- 55 3
7110 13 Mar 01 13:34 LAG1 8 1 16 -20 +- 46 5 +- 25 4
7110 14 Mar 01 02:13 LAG1 7 0 20 -18 +- 41 -2 +- 22 1
7110 14 Mar 01 02:47 LAG2 17 0 55 -35 +- 23 -24 +- 13 12
7110 14 Mar 01 05:36 LAG1 9 0 14 -6 +- 32 -12 +- 33 3
7110 14 Mar 01 06:55 LAG2 14 0 11 10 +- 26 0 +- 26 2
7110 14 Mar 01 08:55 LAG1 12 0 15 16 +- 29 -5 +- 30 1
7110 14 Mar 01 12:09 LAG1 14 0 34 -21 +- 27 -9 +- 13 8
7110 14 Mar 01 20:45 LAG2 3 0 13 -48 +- 443 -32 +- 380 5
7110 15 Mar 01 04:11 LAG1 15 0 22 -22 +- 25 -7 +- 18 3
7110 15 Mar 01 04:59 LAG2 14 0 8 -2 +- 28 3 +- 13 4
7110 15 Mar 01 10:49 LAG1 15 1 9 9 +- 26 0 +- 17 3
7110 15 Mar 01 14:33 LAG1 9 0 39 -40 +- 34 6 +- 41 5
7110 16 Mar 01 03:15 LAG1 4 0 3 -7 +- 215 2 +- 102 2
7110 16 Mar 01 06:33 LAG1 4 1 7 -2 +- 258 -7 +- 410 1
7110 16 Mar 01 07:31 LAG2 5 0 100 101 +- 276 0 +- 204 1
7110 16 Mar 01 12:54 LAG1 11 0 14 -13 +- 55 0 +- 31 2
7110 17 Mar 01 01:12 LAG2 3 0 26 -89 +- 332 -66 +- 332 1
7110 17 Mar 01 01:33 LAG1 19 0 45 -43 +- 24 22 +- 13 8
7110 17 Mar 01 04:59 LAG1 5 0 28 -1 +- 214 18 +- 142 1
7110 17 Mar 01 05:07 LAG2 7 0 19 29 +- 67 6 +- 34 2
7110 17 Mar 01 08:23 LAG1 8 0 24 -15 +- 34 22 +- 37 4
7110 17 Mar 01 11:45 LAG1 17 0 37 -27 +- 27 -6 +- 15 12

Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm)
7210 8 Mar 01 03:47 LAG1 10 0 33 -74 +- 101 25 +- 53 3
7210 8 Mar 01 06:31 LAG2 3 0 92 52 +- 311 25 +- 199 3
7210 14 Mar 01 06:07 LAG1 9 0 30 20 +- 74 -28 +- 47 9
7210 14 Mar 01 07:11 LAG2 8 0 21 3 +- 172 -11 +- 88 9
7210 15 Mar 01 04:39 LAG1 2 0 30 43 +- 867 12 +- 798 0
7210 15 Mar 01 05:11 LAG2 6 0 10 10 +- 190 -12 +- 165 9
7210 15 Mar 01 08:49 LAG2 24 0 30 23 +- 22 8 +- 12 6
7210 16 Mar 01 03:25 LAG1 11 0 19 8 +- 77 5 +- 42 3
7210 16 Mar 01 06:44 LAG1 2 0 5 -30 +- 885 -24 +- 843 0
7210 16 Mar 01 06:55 LAG2 23 0 13 -6 +- 22 -6 +- 13 4

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 8 Mar 01 10:43 LAG1 4 0 24 -76 +- 440 -36 +- 287 4
7237 10 Mar 01 11:37 LAG1 9 0 53 -1 +- 66 50 +- 61 6
7237 10 Mar 01 13:55 LAG2 14 0 16 -10 +- 63 -1 +- 47 11
7237 10 Mar 01 18:33 LAG1 4 0 46 -134 +- 285 116 +- 303 11
7237 11 Mar 01 11:55 LAG2 8 0 46 1 +- 61 -28 +- 40 13
7237 14 Mar 01 13:13 LAG1 7 0 14 4 +- 83 -16 +- 108 10
7237 15 Mar 01 11:35 LAG1 16 0 31 -2 +- 44 18 +- 26 5
7237 15 Mar 01 12:13 LAG2 18 0 18 14 +- 44 -4 +- 30 6
7237 15 Mar 01 15:12 LAG1 12 0 26 -27 +- 56 17 +- 49 6
7237 15 Mar 01 18:25 LAG1 15 0 19 -18 +- 48 -1 +- 27 6
7237 17 Mar 01 12:47 LAG2 5 0 16 -20 +- 112 40 +- 206 2
7237 17 Mar 01 12:55 LAG1 5 0 62 -8 +- 808 -21 +- 341 17
7237 17 Mar 01 19:25 LAG1 12 0 10 2 +- 58 -7 +- 43 6

Station 7249 (Beijing) (Position fixed, acc. 50 mm)
7249 14 Mar 01 13:05 LAG1 14 0 36 3 +- 48 -26 +- 36 8
7249 14 Mar 01 14:13 LAG2 14 0 21 -19 +- 46 0 +- 42 9
7249 14 Mar 01 16:41 LAG1 6 0 46 59 +- 108 -24 +- 144 6
7249 14 Mar 01 20:06 LAG1 7 0 14 -1 +- 134 4 +- 74 12
7249 15 Mar 01 11:51 LAG1 6 0 271 -300 +- 96 -64 +- 93 77*CHK*
7249 16 Mar 01 20:48 LAG1 9 9 0 0 +- 0 0 +- 0 0
7249 17 Mar 01 12:31 LAG2 7 0 293 -268 +- 69 39 +- 46 28*CHK*
7249 17 Mar 01 19:27 LAG1 8 0 31 31 +- 63 -11 +- 76 8

Station 7501 (Hartebeesthoek) (Position solved, acc. 10 mm)
7501 8 Mar 01 08:21 LAG2 2 0 36 -28 +- 255 20 +- 635 0
7501 8 Mar 01 21:37 LAG2 9 0 34 25 +- 83 -6 +- 58 0
7501 9 Mar 01 06:13 LAG2 14 0 10 -9 +- 26 3 +- 31 1
7501 11 Mar 01 08:19 LAG1 3 0 61 42 +- 202 34 +- 344 0
7501 11 Mar 01 14:33 LAG1 17 0 4 3 +- 24 1 +- 14 2
7501 12 Mar 01 13:17 LAG1 9 0 24 -8 +- 57 13 +- 44 0
7501 12 Mar 01 16:47 LAG1 9 0 32 32 +- 59 0 +- 47 1
7501 13 Mar 01 06:51 LAG2 5 0 4 3 +- 57 14 +- 144 1
7501 14 Mar 01 07:33 LAG1 4 0 21 -57 +- 264 -36 +- 247 3
7501 14 Mar 01 14:06 LAG1 10 0 39 27 +- 30 -16 +- 18 2
7501 14 Mar 01 17:42 LAG1 12 0 33 -21 +- 30 -23 +- 37 1
7501 15 Mar 01 06:49 LAG2 13 0 19 -1 +- 27 17 +- 25 2
7501 15 Mar 01 12:59 LAG1 11 1 17 12 +- 60 3 +- 42 1
7501 15 Mar 01 16:13 LAG1 18 0 11 10 +- 22 0 +- 15 2
7501 16 Mar 01 11:38 LAG1 7 0 13 -16 +- 47 10 +- 76 1
7501 16 Mar 01 14:49 LAG1 16 0 9 2 +- 24 4 +- 11 1
7501 16 Mar 01 18:49 LAG2 6 0 161 -162 +- 51 3 +- 147 2*CHK*
7501 17 Mar 01 07:01 LAG1 14 0 37 2 +- 26 33 +- 24 1
7501 17 Mar 01 07:33 LAG2 7 1 4 -17 +- 206 9 +- 129 1
7501 17 Mar 01 17:21 LAG1 4 0 60 -42 +- 182 -19 +- 190 2
7501 17 Mar 01 20:35 LAG2 17 0 45 -27 +- 23 19 +- 13 3

Station 7806 (Metsahovi) (Position fixed, acc. 30 mm)
7806 8 Mar 01 02:36 LAG1 7 0 36 -12 +- 60 -9 +- 66 31

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 13 Mar 01 11:51 LAG2 2 0 31 -25 +-6159 -2 +-3076 0
7810 15 Mar 01 19:29 LAG1 12 0 53 -11 +- 152 -20 +- 71 2
7810 15 Mar 01 19:56 LAG2 3 0 21 -23 +- 207 16 +- 99 2
7810 15 Mar 01 22:45 LAG1 15 0 27 5 +- 61 -20 +- 41 5

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 8 Mar 01 18:07 LAG1 15 0 51 -32 +- 52 -25 +- 35 4
7811 13 Mar 01 18:21 LAG1 15 0 37 -10 +- 52 -23 +- 35 2
7811 13 Mar 01 19:31 LAG2 15 0 43 -44 +- 52 6 +- 43 6
7811 13 Mar 01 21:49 LAG1 11 0 35 -39 +- 72 -25 +- 59 8
7811 15 Mar 01 19:28 LAG1 4 0 57 -47 +- 534 -6 +- 310 4
7811 15 Mar 01 19:43 LAG2 15 0 41 -34 +- 51 20 +- 44 4
7811 16 Mar 01 02:05 LAG1 13 0 31 1 +- 56 -22 +- 42 12

Station 7820 (Kunming) (Position solved, acc. 80 mm)
7820 13 Mar 01 12:05 LAG2 10 0 13 14 +- 105 16 +- 131 5
7820 13 Mar 01 16:14 LAG2 8 0 25 4 +- 96 40 +- 147 3

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 9 Mar 01 19:07 LAG2 6 0 71 67 +- 64 14 +- 120 8
7824 11 Mar 01 19:13 LAG2 14 0 94 89 +- 40 -26 +- 37 4
7824 13 Mar 01 18:43 LAG1 11 0 91 108 +- 77 -13 +- 43 9
7824 13 Mar 01 19:35 LAG2 7 0 107 104 +- 56 -35 +- 106 10
7824 14 Mar 01 20:43 LAG1 15 0 81 79 +- 38 -17 +- 27 7
7824 14 Mar 01 21:49 LAG2 4 0 72 71 +- 98 0 +- 239 9
7824 15 Mar 01 20:03 LAG2 2 0 76 210 +-1299 -110 +-1062 0
7824 16 Mar 01 21:57 LAG2 4 0 164 141 +- 154 -40 +- 262 26

Station 7832 (Riyad) (Position solved, acc. 20 mm)
7832 9 Mar 01 11:05 LAG2 12 0 22 -25 +- 43 23 +- 39 8
7832 10 Mar 01 08:51 LAG2 15 0 14 -5 +- 29 -5 +- 19 11
7832 16 Mar 01 09:33 LAG2 20 0 13 11 +- 25 3 +- 17 7

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 9 Mar 01 19:01 LAG2 8 0 8 -12 +- 76 -5 +- 60 3
7836 9 Mar 01 20:32 LAG1 5 0 17 -25 +- 134 6 +- 79 5
7836 13 Mar 01 15:33 LAG2 10 0 72 65 +- 49 -71 +- 46 32
7836 14 Mar 01 20:35 LAG1 10 0 22 -15 +- 39 -18 +- 39 2
7836 15 Mar 01 15:54 LAG2 4 0 9 -12 +- 130 6 +- 180 2
7836 15 Mar 01 19:11 LAG1 3 0 123 702 +- 482 359 +- 271 30*CHK*
7836 15 Mar 01 19:59 LAG2 4 0 28 -45 +- 201 64 +- 205 13
7836 15 Mar 01 22:47 LAG1 2 0 9 12 +- 369 5 +- 675 0

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 8 Mar 01 10:51 LAG1 12 0 60 -43 +- 51 -19 +- 31 9
7837 8 Mar 01 17:43 LAG1 5 0 27 -27 +- 134 1 +- 151 5
7837 8 Mar 01 20:53 LAG1 10 0 63 -49 +- 70 12 +- 47 6
7837 12 Mar 01 12:33 LAG1 12 0 12 -18 +- 82 12 +- 54 4
7837 12 Mar 01 14:07 LAG2 14 0 73 -71 +- 46 -13 +- 41 5
7837 13 Mar 01 11:01 LAG1 19 0 54 -53 +- 41 5 +- 23 16
7837 13 Mar 01 12:09 LAG2 10 0 37 -53 +- 95 -49 +- 76 11

Station 7838 (Simosato Observatory) (Position fixed, acc. 30 mm)
7838 9 Mar 01 03:45 LAG2 10 0 26 26 +- 126 -1 +- 72 12
7838 9 Mar 01 07:49 LAG2 9 0 32 -40 +- 82 14 +- 80 14
7838 11 Mar 01 12:03 LAG2 4 0 13 -49 +- 439 -40 +- 293 2
7838 12 Mar 01 09:57 LAG2 9 0 57 28 +- 115 -15 +- 72 22
7838 12 Mar 01 12:19 LAG1 13 0 42 37 +- 36 10 +- 32 7
7838 12 Mar 01 14:11 LAG2 12 0 26 -21 +- 36 4 +- 41 14
7838 13 Mar 01 07:33 LAG1 7 0 40 14 +- 51 38 +- 72 20
7838 13 Mar 01 08:16 LAG2 10 0 20 1 +- 67 -17 +- 63 11
7838 13 Mar 01 11:03 LAG1 15 0 31 26 +- 42 3 +- 26 7

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 10 Mar 01 17:09 LAG2 17 0 47 30 +- 25 16 +- 16 3
7839 11 Mar 01 17:51 LAG1 7 0 24 42 +- 95 -14 +- 63 3
7839 12 Mar 01 13:18 LAG2 21 0 36 25 +- 25 8 +- 14 2
7839 12 Mar 01 16:01 LAG1 25 0 38 35 +- 19 5 +- 10 6
7839 12 Mar 01 17:10 LAG2 23 0 27 23 +- 20 7 +- 10 3
7839 12 Mar 01 19:32 LAG1 16 0 15 8 +- 24 6 +- 12 2
7839 12 Mar 01 21:35 LAG2 8 0 4 -1 +- 50 3 +- 58 3
7839 12 Mar 01 23:33 LAG1 9 0 25 -3 +- 187 12 +- 79 2
7839 14 Mar 01 17:25 LAG1 7 0 14 69 +- 215 -24 +- 89 1
7839 14 Mar 01 17:41 LAG2 18 0 34 15 +- 27 14 +- 17 1
7839 15 Mar 01 04:05 LAG1 3 0 24 -908 +-8367 293 +-2773 0
7839 15 Mar 01 15:45 LAG1 14 0 64 58 +- 39 5 +- 25 3
7839 15 Mar 01 15:47 LAG2 14 0 30 9 +- 31 17 +- 22 1
7839 15 Mar 01 19:43 LAG2 9 0 23 18 +- 32 11 +- 28 2
7839 15 Mar 01 23:01 LAG1 8 0 8 39 +- 233 -13 +- 98 1
7839 15 Mar 01 23:37 LAG2 14 0 39 31 +- 25 34 +- 40 4
7839 16 Mar 01 02:03 LAG1 14 0 46 45 +- 25 -10 +- 16 2
7839 16 Mar 01 09:53 LAG2 13 0 20 -26 +- 40 6 +- 25 1
7839 16 Mar 01 13:47 LAG2 13 0 10 8 +- 30 1 +- 20 3
7839 16 Mar 01 14:25 LAG1 7 0 45 33 +- 76 16 +- 99 2
7839 16 Mar 01 17:37 LAG1 21 0 20 20 +- 21 -3 +- 9 4
7839 16 Mar 01 21:05 LAG1 19 0 27 30 +- 26 3 +- 14 2
7839 16 Mar 01 21:47 LAG2 10 0 77 80 +- 31 23 +- 34 3
7839 17 Mar 01 00:31 LAG1 18 0 25 24 +- 22 0 +- 9 5
7839 17 Mar 01 03:59 LAG1 22 0 14 14 +- 21 1 +- 10 2

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 8 Mar 01 02:23 LAG1 13 0 39 31 +- 36 -7 +- 23 4
7840 8 Mar 01 20:46 LAG2 9 0 25 -24 +- 36 -3 +- 35 5
7840 12 Mar 01 19:59 LAG1 11 0 13 -20 +- 54 9 +- 30 6
7840 12 Mar 01 21:15 LAG2 12 0 21 -23 +- 36 2 +- 22 5
7840 13 Mar 01 18:21 LAG1 17 0 20 6 +- 26 -11 +- 16 5
7840 13 Mar 01 19:19 LAG2 18 0 27 -12 +- 27 -12 +- 16 4
7840 13 Mar 01 21:52 LAG1 13 0 16 -10 +- 29 -10 +- 22 2
7840 13 Mar 01 23:31 LAG2 3 0 36 -36 +- 62 7 +- 197 1
7840 14 Mar 01 01:19 LAG1 15 0 31 24 +- 28 -10 +- 18 5

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 9 Mar 01 15:03 LAG2 20 0 39 -59 +- 43 18 +- 22 15
7845 9 Mar 01 16:55 LAG1 9 0 48 -47 +- 36 1 +- 41 6
7845 13 Mar 01 11:33 LAG2 16 0 61 -26 +- 60 -19 +- 33 12
7845 14 Mar 01 01:11 LAG1 7 0 15 -55 +- 159 -29 +- 85 5
7845 14 Mar 01 13:11 LAG2 13 0 20 -8 +- 38 0 +- 16 18
7845 14 Mar 01 16:59 LAG1 13 0 8 5 +- 41 5 +- 29 5
7845 14 Mar 01 17:39 LAG2 22 0 35 -41 +- 31 25 +- 17 10
7845 14 Mar 01 20:22 LAG1 26 0 35 -30 +- 21 -5 +- 9 14
7845 14 Mar 01 21:23 LAG2 12 0 52 -43 +- 101 4 +- 53 3
7845 15 Mar 01 00:01 LAG1 19 0 42 -23 +- 29 -14 +- 17 5
7845 15 Mar 01 19:33 LAG2 10 0 38 -51 +- 133 -7 +- 66 3
7845 15 Mar 01 22:39 LAG1 20 0 19 -19 +- 25 2 +- 15 5
7845 16 Mar 01 01:53 LAG1 22 0 23 -8 +- 23 -9 +- 10 7

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 8 Mar 01 08:15 LAG1 5 0 44 -54 +- 824 38 +- 318 2
7849 8 Mar 01 14:16 LAG2 11 0 38 49 +- 75 7 +- 47 2
7849 8 Mar 01 19:13 LAG2 2 0 68 -243 +-5115 153 +-2513 0
7849 8 Mar 01 20:28 LAG1 1 0 11 0 +- 0 0 +- 0 0
7849 8 Mar 01 22:49 LAG2 12 0 18 19 +- 30 15 +- 33 2
7849 8 Mar 01 23:54 LAG1 2 0 57 53 +- 146 15 +- 534 0
7849 10 Mar 01 05:14 LAG1 6 0 20 -29 +- 59 33 +- 68 1
7849 10 Mar 01 08:45 LAG1 2 0 29 32 +- 117 25 +- 744 0
7849 10 Mar 01 14:49 LAG2 10 0 14 -1 +- 41 15 +- 41 1
7849 10 Mar 01 18:38 LAG2 10 0 59 -20 +- 44 34 +- 36 10
7849 12 Mar 01 05:55 LAG1 5 0 20 -21 +- 75 -1 +- 93 1
7849 12 Mar 01 09:33 LAG1 5 0 18 16 +- 45 9 +- 97 4
7849 12 Mar 01 14:57 LAG2 6 0 20 -19 +- 66 1 +- 90 1
7849 12 Mar 01 18:13 LAG1 11 0 12 -13 +- 34 -9 +- 36 4
7849 12 Mar 01 19:11 LAG2 15 0 33 -3 +- 30 33 +- 29 1
7849 12 Mar 01 21:49 LAG1 8 0 13 -3 +- 55 8 +- 46 2
7849 13 Mar 01 04:36 LAG1 6 0 37 36 +- 39 6 +- 48 2
7849 13 Mar 01 08:03 LAG1 15 0 29 -29 +- 27 17 +- 19 4
7849 14 Mar 01 07:09 LAG1 2 0 50 367 +-6269 -154 +-2326 0
7849 14 Mar 01 22:41 LAG1 9 0 28 -19 +- 32 -21 +- 38 2
7849 15 Mar 01 08:56 LAG1 7 0 73 -74 +- 40 2 +- 56 4
7849 16 Mar 01 01:45 LAG2 7 0 88 88 +- 38 -6 +- 94 3
7849 17 Mar 01 06:01 LAG1 8 0 40 11 +- 39 14 +- 17 4
7849 17 Mar 01 17:55 LAG2 4 0 29 30 +- 183 0 +- 145 2
7849 17 Mar 01 18:31 LAG1 11 0 39 38 +- 29 0 +- 26 4
--------------------------------------------------------------------------------



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 010123 - 010307 0/ 7/ 0 0/ 4/ 0 11
1864 MD2LAS 001112 - 001223 0/ 5/ 0 0/ 8/ 0 13
1873 SIMLAS 001101 - 010216 0/ 4/ 0 0/ 11/ 0 15
1884 RIGLAS 001102 - 010309 0/ 25/ 0 0/ 14/ 0 39
1893 CRMLAS 001107 - 001202 0/ 5/ 0 0/ 3/ 0 8
7080 MLRS25 001102 - 010319 30/ 75/ 6 27/ 73/ 9 220
7090 ML0514 001101 - 010319 80/104/ 18 100/ 88/ 9 399
7105 ML0725 001101 - 010318 31/164/ 9 27/138/ 11 380
7110 ML0414 001101 - 010319 20/141/ 9 14/115/ 8 307
7124 ML0819 001107 - 010208 0/ 25/ 0 0/ 16/ 2 43
7210 HOLLAS 001115 - 010316 3/ 37/ 1 0/ 29/ 1 71
7231 WUHA01 001103 - 001205 0/ 8/ 0 0/ 9/ 0 17
7237 CHALAS 001102 - 010318 0/ 98/ 0 0/ 78/ 0 176
7249 BEJLAS 001101 - 010317 0/ 37/ 0 0/ 31/ 0 68
7335 KASLAS 001108 - 010118 4/ 16/ 1 5/ 15/ 1 42
7339 TATLAS 001107 - 010216 21/ 28/ 0 8/ 26/ 3 86
7403 TLRS3 001101 - 001123 0/ 11/ 0 0/ 10/ 0 21
7501 ML0616 001101 - 010317 26/ 31/ 6 22/ 16/ 1 102
7806 METLAS 010209 - 010308 0/ 15/ 0 0/ 5/ 0 20
7810 ZIMLAT 001102 - 010318 12/ 20/ 1 4/ 14/ 2 53
7811 POLLAS 001103 - 010316 0/ 69/ 0 0/ 43/ 0 112
7820 YSLR01 001101 - 010313 0/132/ 1 0/162/ 0 295
7824 SPNLAS 001101 - 010316 2/ 67/ 2 2/ 72/ 2 147
7831 HELLAS 001101 - 001104 0/ 3/ 0 0/ 1/ 0 4
7832 SALRO 001211 - 010318 4/ 14/ 3 23/ 8/ 2 54
7835 GRASSE 001101 - 010227 9/ 87/ 1 9/ 71/ 2 179
7836 GFZLAS 001101 - 010315 5/ 77/ 5 3/ 58/ 2 150
7837 CHILAS 001102 - 010313 0/ 56/ 0 0/ 52/ 0 108
7838 SHOLAS 001107 - 010318 2/ 92/ 0 7/ 90/ 2 193
7839 AUSLAS 001102 - 010318 19/ 80/ 4 21/ 61/ 4 189
7840 RGOLAS 001102 - 010319 30/126/ 7 18/102/ 8 291
7845 GRASLL 001103 - 010319 11/ 31/ 1 19/ 26/ 1 89
7849 MSLO01 001101 - 010319 148/ 48/ 18 136/ 37/ 11 398
7939 SAO102 001101 - 001121 0/ 6/ 0 0/ 2/ 0 8
8834 WLRS01 001101 - 010116 4/ 17/ 0 3/ 25/ 2 51
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
010310.0 34.4 +/- 0.2 486.9 +/- 0.1 -31953.27 +/- 0.01
010313.0 41.8 +/- 0.1 486.3 +/- 0.1 -31957.88 +/- 0.01
010316.0 49.8 +/- 0.1 487.9 +/- 0.1 -31960.81 +/- 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

********************************************************************************

Find more topics on the central web site of the Technical University of Munich: www.tum.de