Welcome >  Mailing Lists >  SLR-Report No.820

SLR-Report No.820

Back to Overview

Date:2001-04-03 09:45:00
Sender:Ron Noomen, DEOS, Delft, The Netherlands <Ron Noomen <Ron.Noomen@lr.tudelft.nl>>
Subject:[SLR-Report] No. 820: Delft QL Report, April 03, 2001
Author:Ron Noomen, DEOS, Delft, The Netherlands
Content:********************************************************************************
SLR Electronic Report 2001-04-03 09:45:00 UTC Message No. 820
********************************************************************************

Author: Ron Noomen, DEOS, Delft, The Netherlands
Subject: Delft QL Report, April 03, 2001


WEGENER-2 IERS

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


April 3, 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, Apr 2, 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,
Apr 2, 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
------------------------------------------------------------------------------
1824 Kiev, Ukraine 010328 - 010328 1 -
1884 Riga, Latvia 010326 - 010327 2 -
7080 McDonald Obs., Fort Davis, TX 010326 - 010402 5 7
7090 Yarragadee, Australia 010326 - 010402 11 13
7105 Greenbelt, Maryland 010326 - 010331 11 5
7110 Monument Peak, California 010327 - 010401 18 7
7210 Haleakala Obs., Maui, Hawaii 010328 - 010330 2 3
7237 Changchun, China 010326 - 010330 5 3
7249 Beijing, China 010327 - 010330 7 2
7403 Arequipa, Peru (TLRS-3) 010326 - 010327 2 1
7501 Hartebeesthoek, SA (MOB-6) 010326 - 010401 7 7
7806 Metsahovi, Finland 010327 - 010330 3 -
7810 Zimmerwald, Switzerland 010327 - 010402 14 10
7811 Borowiec, Poland 010326 - 010402 8 1
7824 San Fernando, Spain 010326 - 010401 8 4
7832 Riyad, Saudi Arabia 010326 - 010402 6 11
7835 Grasse, France 010328 - 010402 7 7
7836 Potsdam, Germany 010327 - 010402 3 -
7837 Shanghai Observatory, China 010329 - 010401 5 2
7839 Graz, Austria 010401 - 010401 - 1
7840 Herstmonceux, United Kingdom 010328 - 010402 7 6
7845 Grasse, France (LLR) 010326 - 010402 4 5
7849 Mount Stromlo, Australia 010326 - 010401 4 8
------ ------ --- ---
TOTAL 010326 - 010402 140 103
------------------------------------------------------------------------------


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 22, 2001 to Sun, Apr 1, 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 23 21
Number of Passes 186/179 130/128
Number of Normal Points 1870/1782 1555/1522
RMS of Fit (mm) 34 27
-----------------------------------------------------------------------


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 1824 (Kiev) (Position solved, acc. 200 mm)
1824 22 Mar 01 18:49 LAG2 2 0 127 57 +-2048 242 +-7084 0
1824 22 Mar 01 20:15 LAG1 2 0 52 -18 +- 604 75 +-1210 0
1824 23 Mar 01 19:03 LAG1 4 0 35 -41 +- 944 28 +- 583 31
1824 28 Mar 01 22:27 LAG1 6 0 83758 -125 +- 394 79696 +- 376 41

Station 1884 (Riga) (Position fixed, acc. 100 mm)
1884 26 Mar 01 18:16 LAG1 9 0 94 -90 +- 104 -23 +- 106 13
1884 27 Mar 01 20:22 LAG1 12 0 93 -91 +- 90 -8 +- 73 12

Station 7080 (McDonald Obs.) (Position fixed, acc. 20 mm)
7080 22 Mar 01 00:05 LAG2 11 0 4 -10 +- 90 6 +- 61 1
7080 22 Mar 01 01:48 LAG1 17 0 62 -12 +- 32 38 +- 18 2
7080 22 Mar 01 21:45 LAG2 10 0 14 -10 +- 34 7 +- 28 1
7080 23 Mar 01 00:23 LAG1 11 0 24 19 +- 35 -8 +- 30 2
7080 23 Mar 01 01:58 LAG2 3 0 22 -18 +- 863 2 +- 472 0
7080 23 Mar 01 19:51 LAG2 2 0 2 -45 +-2684 -48 +-2667 0
7080 23 Mar 01 22:57 LAG1 19 0 5 5 +- 25 0 +- 18 2
7080 24 Mar 01 00:01 LAG2 13 0 10 -9 +- 32 4 +- 23 3
7080 24 Mar 01 02:37 LAG1 4 0 7 5 +- 71 -1 +- 79 4
7080 24 Mar 01 04:11 LAG2 10 0 15 -9 +- 38 10 +- 42 2
7080 25 Mar 01 20:03 LAG2 14 0 7 1 +- 29 -4 +- 26 6
7080 25 Mar 01 23:53 LAG1 9 0 6 -5 +- 36 -3 +- 41 2
7080 26 Mar 01 00:37 LAG2 7 0 6 4 +- 124 0 +- 88 2
7080 26 Mar 01 03:27 LAG1 7 0 4 3 +- 47 -3 +- 68 2
7080 26 Mar 01 10:09 LAG1 7 0 19 7 +- 78 10 +- 64 1
7080 26 Mar 01 13:26 LAG1 10 0 49 55 +- 47 9 +- 49 3
7080 27 Mar 01 16:39 LAG2 4 0 23 4 +- 700 -14 +- 371 6
7080 28 Mar 01 00:42 LAG1 6 0 6 4 +- 51 10 +- 70 1
7080 28 Mar 01 00:54 LAG2 9 0 9 -22 +- 160 15 +- 87 2
7080 28 Mar 01 04:18 LAG1 3 0 9 -7 +- 239 -2 +- 332 1
7080 28 Mar 01 04:55 LAG2 7 0 7 -15 +- 153 14 +- 106 1

Station 7090 (Yarragadee) (Position fixed, acc. 10 mm)
7090 22 Mar 01 06:27 LAG1 15 0 33 27 +- 25 8 +- 20 3
7090 22 Mar 01 09:51 LAG1 11 0 4 5 +- 40 4 +- 31 2
7090 22 Mar 01 16:07 LAG2 10 0 8 -21 +- 132 14 +- 68 0
7090 22 Mar 01 19:51 LAG2 2 0 51 -132 +-2925 -49 +-1807 0
7090 23 Mar 01 08:27 LAG1 16 0 33 6 +- 25 -19 +- 15 2
7090 23 Mar 01 13:47 LAG2 23 0 15 14 +- 20 -4 +- 14 1
7090 23 Mar 01 17:45 LAG2 25 0 15 -11 +- 19 -6 +- 13 2
7090 24 Mar 01 10:45 LAG1 10 0 41 35 +- 31 -17 +- 40 2
7090 24 Mar 01 12:06 LAG2 7 0 6 0 +- 36 -17 +- 95 1
7090 24 Mar 01 15:47 LAG2 26 0 1 0 +- 18 0 +- 11 0
7090 24 Mar 01 19:39 LAG1 14 0 47 -46 +- 29 2 +- 30 2
7090 24 Mar 01 20:07 LAG2 9 0 8 -21 +- 120 -11 +- 96 1
7090 25 Mar 01 09:15 LAG1 9 0 43 3 +- 79 -23 +- 46 2
7090 25 Mar 01 13:57 LAG2 18 0 39 14 +- 23 -24 +- 16 2
7090 25 Mar 01 18:01 LAG2 24 0 28 -6 +- 19 -20 +- 14 2
7090 26 Mar 01 07:53 LAG1 19 0 32 -28 +- 22 10 +- 11 4
7090 26 Mar 01 11:35 LAG1 11 0 31 31 +- 29 -4 +- 46 1
7090 26 Mar 01 12:17 LAG2 14 0 28 -5 +- 26 -35 +- 35 1
7090 26 Mar 01 16:03 LAG2 27 0 17 5 +- 18 -10 +- 11 0
7090 26 Mar 01 20:29 LAG2 9 0 16 -24 +- 70 -10 +- 80 0
7090 26 Mar 01 20:45 LAG1 12 0 35 -42 +- 55 40 +- 34 1
7090 26 Mar 01 23:57 LAG1 13 0 43 22 +- 36 40 +- 26 3
7090 27 Mar 01 00:39 LAG2 13 0 35 17 +- 26 14 +- 14 6
7090 27 Mar 01 06:45 LAG1 9 0 31 -35 +- 36 15 +- 25 3
7090 28 Mar 01 08:55 LAG1 14 0 9 -9 +- 40 8 +- 23 0
7090 28 Mar 01 12:27 LAG2 16 0 8 0 +- 24 -9 +- 26 0
7090 28 Mar 01 16:25 LAG2 20 0 15 -6 +- 21 11 +- 17 2
7090 29 Mar 01 11:05 LAG1 5 0 23 -24 +- 46 -2 +- 136 0
7090 29 Mar 01 14:21 LAG2 20 0 55 -4 +- 21 -26 +- 10 2
7090 30 Mar 01 09:45 LAG1 10 0 21 8 +- 49 -21 +- 37 2
7090 30 Mar 01 12:35 LAG2 18 0 38 -36 +- 22 -8 +- 17 6
7090 30 Mar 01 16:29 LAG2 27 0 5 0 +- 18 -1 +- 11 4
7090 30 Mar 01 20:51 LAG2 28 0 22 -17 +- 18 9 +- 13 5
7090 30 Mar 01 22:10 LAG1 14 0 30 -19 +- 26 -13 +- 19 2
7090 31 Mar 01 01:01 LAG2 18 0 48 57 +- 26 22 +- 20 7
7090 31 Mar 01 01:37 LAG1 6 0 22 -4 +- 39 -26 +- 47 5

Station 7105 (Greenbelt) (Position fixed, acc. 10 mm)
7105 23 Mar 01 00:19 LAG1 4 0 11 -18 +- 83 -16 +- 128 1
7105 23 Mar 01 02:37 LAG2 3 0 20 -525 +-1616 242 +- 745 10
7105 23 Mar 01 03:41 LAG1 3 0 6 -32 +- 300 -32 +- 324 0
7105 23 Mar 01 07:05 LAG1 7 0 16 12 +- 36 -19 +- 55 1
7105 23 Mar 01 10:35 LAG1 2 0 42 -94 +- 700 -66 +- 885 0
7105 24 Mar 01 00:15 LAG2 16 0 24 -25 +- 27 11 +- 15 5
7105 24 Mar 01 02:35 LAG1 5 0 16 -11 +- 161 -3 +- 129 3
7105 24 Mar 01 05:39 LAG1 9 0 30 21 +- 33 -14 +- 31 2
7105 24 Mar 01 09:05 LAG1 4 0 19 -7 +- 312 -15 +- 177 1
7105 25 Mar 01 00:53 LAG1 21 0 55 15 +- 21 -30 +- 11 4
7105 25 Mar 01 02:15 LAG2 19 0 28 -27 +- 22 4 +- 15 3
7105 25 Mar 01 04:23 LAG1 6 0 41 14 +- 39 -26 +- 25 1
7105 25 Mar 01 07:41 LAG1 5 0 36 -2 +- 240 -20 +- 125 2
7105 25 Mar 01 11:16 LAG1 17 0 14 -5 +- 24 -9 +- 19 2
7105 25 Mar 01 20:32 LAG2 11 0 14 -1 +- 80 8 +- 46 3
7105 25 Mar 01 23:39 LAG1 7 0 14 -1 +- 43 -11 +- 35 4
7105 26 Mar 01 00:26 LAG2 2 0 31 -24 +- 293 4 +- 182 0
7105 26 Mar 01 18:22 LAG2 15 0 14 -12 +- 27 11 +- 22 2
7105 26 Mar 01 22:17 LAG1 9 0 23 -14 +- 32 10 +- 19 4
7105 26 Mar 01 22:55 LAG2 9 0 32 4 +- 190 13 +- 90 4
7105 27 Mar 01 01:41 LAG1 9 0 15 14 +- 34 0 +- 19 2
7105 27 Mar 01 02:31 LAG2 12 0 24 -24 +- 31 1 +- 19 5
7105 27 Mar 01 05:09 LAG1 14 0 14 15 +- 27 -2 +- 22 1
7105 27 Mar 01 08:23 LAG1 18 0 6 3 +- 22 2 +- 11 2
7105 28 Mar 01 00:23 LAG1 13 0 9 -3 +- 27 -3 +- 15 2
7105 28 Mar 01 01:05 LAG2 9 0 12 -42 +- 212 22 +- 94 5
7105 28 Mar 01 03:59 LAG1 3 0 9 6 +- 63 57 +- 382 3
7105 28 Mar 01 07:03 LAG1 9 0 9 10 +- 42 0 +- 21 0
7105 28 Mar 01 11:05 LAG1 3 0 34 -27 +- 596 -4 +- 363 2
7105 28 Mar 01 18:39 LAG2 16 0 29 -10 +- 29 26 +- 22 3
7105 28 Mar 01 23:38 LAG1 2 0 27 -249 +-4869 94 +-1666 0
7105 29 Mar 01 02:27 LAG1 6 0 11 -11 +- 52 -8 +- 32 5
7105 31 Mar 01 00:19 LAG1 4 0 39 -33 +- 671 -2 +- 262 5

Station 7110 (Monument Peak) (Position fixed, acc. 10 mm)
7110 22 Mar 01 03:53 LAG2 11 0 28 -27 +- 29 1 +- 22 4
7110 22 Mar 01 08:33 LAG1 7 0 25 7 +- 36 21 +- 31 1
7110 22 Mar 01 11:45 LAG1 20 0 20 -3 +- 21 8 +- 9 6
7110 22 Mar 01 17:35 LAG2 3 0 9 -7 +- 558 0 +- 411 3
7110 23 Mar 01 03:49 LAG1 8 0 14 -22 +- 109 -5 +- 61 1
7110 23 Mar 01 05:55 LAG2 9 0 16 -19 +- 38 5 +- 23 3
7110 23 Mar 01 07:29 LAG1 4 0 13 -9 +- 128 -5 +- 177 3
7110 23 Mar 01 10:33 LAG1 17 0 24 -22 +- 23 -3 +- 15 6
7110 23 Mar 01 14:15 LAG1 10 0 12 8 +- 40 -13 +- 34 3
7110 24 Mar 01 02:39 LAG1 15 0 8 -8 +- 29 1 +- 17 4
7110 24 Mar 01 03:57 LAG2 16 0 20 -15 +- 24 4 +- 13 6
7110 24 Mar 01 06:01 LAG1 9 0 6 -2 +- 33 7 +- 48 1
7110 24 Mar 01 09:17 LAG1 3 0 18 -19 +- 62 2 +- 32 0
7110 24 Mar 01 12:43 LAG1 9 0 16 11 +- 47 -5 +- 39 0
7110 25 Mar 01 01:27 LAG1 9 0 51 -31 +- 75 -12 +- 43 3
7110 25 Mar 01 02:13 LAG2 13 0 22 -15 +- 40 -3 +- 21 4
7110 25 Mar 01 04:39 LAG1 10 0 16 16 +- 31 -7 +- 21 2
7110 25 Mar 01 06:09 LAG2 7 0 7 11 +- 89 8 +- 88 5
7110 25 Mar 01 08:05 LAG1 9 0 11 -12 +- 34 1 +- 47 1
7110 25 Mar 01 20:21 LAG2 2 1 42 0 +- 0 0 +- 0 0
7110 26 Mar 01 00:16 LAG1 4 0 36 -128 +- 627 43 +- 295 1
7110 26 Mar 01 03:13 LAG1 17 0 15 3 +- 23 7 +- 12 4
7110 26 Mar 01 04:09 LAG2 20 0 5 -5 +- 22 0 +- 12 2
7110 26 Mar 01 06:51 LAG1 3 0 12 -12 +- 89 -1 +- 320 2
7110 27 Mar 01 02:06 LAG1 6 0 20 1 +- 55 11 +- 33 1
7110 27 Mar 01 02:39 LAG2 11 0 25 -23 +- 73 -1 +- 44 1
7110 27 Mar 01 05:41 LAG1 2 0 22 6 +- 374 31 +- 751 0
7110 27 Mar 01 06:25 LAG2 6 0 15 10 +- 42 -8 +- 46 2
7110 27 Mar 01 08:55 LAG1 7 0 12 -10 +- 62 20 +- 67 1
7110 27 Mar 01 12:03 LAG1 14 0 29 -20 +- 25 11 +- 14 4
7110 28 Mar 01 04:17 LAG1 12 0 15 -8 +- 42 14 +- 30 2
7110 28 Mar 01 04:41 LAG2 9 0 15 -9 +- 45 11 +- 26 2
7110 28 Mar 01 10:41 LAG1 19 0 53 -33 +- 22 21 +- 13 6
7110 28 Mar 01 14:27 LAG1 12 1 8 -6 +- 31 10 +- 42 2
7110 29 Mar 01 02:37 LAG2 13 0 20 -21 +- 28 3 +- 17 5
7110 29 Mar 01 03:13 LAG1 5 0 24 -60 +- 367 33 +- 146 3
7110 29 Mar 01 06:15 LAG1 10 0 10 -9 +- 31 5 +- 41 1
7110 29 Mar 01 09:23 LAG1 4 0 19 21 +- 55 7 +- 25 1
7110 29 Mar 01 12:53 LAG1 8 0 11 -17 +- 75 -4 +- 48 2
7110 30 Mar 01 04:47 LAG2 3 0 15 31 +- 449 13 +- 366 2
7110 30 Mar 01 04:53 LAG1 10 0 15 -14 +- 30 5 +- 22 3
7110 30 Mar 01 08:13 LAG1 11 0 10 -9 +- 29 0 +- 29 4
7110 30 Mar 01 11:25 LAG1 17 0 36 -35 +- 24 -9 +- 12 12
7110 31 Mar 01 02:43 LAG2 8 0 18 -2 +- 33 -7 +- 14 7
7110 31 Mar 01 03:35 LAG1 9 0 24 -19 +- 32 6 +- 20 9
7110 31 Mar 01 07:01 LAG1 2 0 8 -120 +-1140 -202 +-1846 0
7110 31 Mar 01 10:17 LAG1 8 0 20 -7 +- 33 -11 +- 21 4
7110 31 Mar 01 13:51 LAG1 2 0 55 -158 +-1224 -99 +-1177 0

Station 7210 (Haleakala Obs.) (Position fixed, acc. 20 mm)
7210 22 Mar 01 05:33 LAG1 7 0 46 -23 +- 40 26 +- 26 8
7210 22 Mar 01 07:43 LAG2 21 0 27 -24 +- 24 -4 +- 15 5
7210 23 Mar 01 05:45 LAG2 14 0 27 -26 +- 30 -1 +- 24 8
7210 28 Mar 01 08:19 LAG2 15 0 21 -16 +- 28 6 +- 18 7
7210 29 Mar 01 06:33 LAG2 10 0 25 25 +- 35 7 +- 28 5
7210 30 Mar 01 05:41 LAG1 3 0 8 73 +-1040 -28 +- 444 4
7210 30 Mar 01 08:33 LAG2 15 0 31 20 +- 28 12 +- 19 9
7210 30 Mar 01 11:49 LAG1 4 0 11 17 +- 178 15 +- 256 8

Station 7237 (Changchun) (Position fixed, acc. 50 mm)
7237 22 Mar 01 11:18 LAG2 14 0 21 -23 +- 77 3 +- 48 9
7237 22 Mar 01 16:07 LAG1 8 0 41 -34 +- 61 13 +- 49 10
7237 22 Mar 01 19:27 LAG1 13 0 43 -30 +- 60 10 +- 35 7
7237 25 Mar 01 18:57 LAG1 4 0 21 143 +- 737 76 +- 361 5
7237 26 Mar 01 10:55 LAG1 7 0 25 -7 +- 69 28 +- 90 3
7237 26 Mar 01 11:41 LAG2 7 0 8 5 +- 65 2 +- 71 5
7237 27 Mar 01 13:01 LAG1 5 0 138 79 +- 79 -4 +- 70 112
7237 27 Mar 01 16:29 LAG1 10 0 21 -23 +- 86 4 +- 66 9
7237 27 Mar 01 19:47 LAG1 10 0 14 13 +- 67 9 +- 57 8
7237 28 Mar 01 11:33 LAG1 5 0 85 22 +- 515 53 +- 258 3
7237 28 Mar 01 11:53 LAG2 1 0 4 0 +- 0 0 +- 0 0
7237 30 Mar 01 12:25 LAG2 2 0 117 535 +-2078 -284 +-1404 0

Station 7249 (Beijing) (Position fixed, acc. 50 mm)
7249 27 Mar 01 14:01 LAG2 4 0 234 168 +- 588 49 +- 438 11
7249 27 Mar 01 16:29 LAG1 8 5 17119 -8377 +- 554 20270 +- 444 39
7249 27 Mar 01 19:49 LAG1 7 7 0 0 +- 0 0 +- 0 0
7249 28 Mar 01 11:45 LAG1 10 0 31 18 +- 59 11 +- 38 10
7249 28 Mar 01 11:51 LAG2 13 0 19 0 +- 55 7 +- 33 13
7249 28 Mar 01 15:09 LAG1 9 0 44 34 +- 58 21 +- 57 12
7249 28 Mar 01 18:23 LAG1 11 0 13 3 +- 56 6 +- 36 9
7249 29 Mar 01 20:26 LAG1 10 6 43651 37975 +- 347 -4988 +- 297 373
7249 30 Mar 01 19:23 LAG1 6 1 237 -237 +- 80 1 +- 161 13

Station 7403 (Arequipa) (Position fixed, acc. 10 mm)
7403 22 Mar 01 13:27 LAG2 4 0 28 28 +- 49 20 +- 92 5
7403 26 Mar 01 09:27 LAG1 12 0 34 19 +- 29 19 +- 25 2
7403 27 Mar 01 03:39 LAG2 4 0 24 40 +-1068 -7 +- 465 2
7403 27 Mar 01 08:01 LAG1 11 0 21 -8 +- 29 19 +- 33 6

Station 7501 (Hartebeesthoek) (Position solved, acc. 10 mm)
7501 26 Mar 01 19:43 LAG2 20 0 7 -3 +- 23 -3 +- 15 2
7501 27 Mar 01 04:50 LAG2 3 0 63 73 +-1760 -5 +- 853 1
7501 27 Mar 01 07:29 LAG1 2 0 9 -52 +-1195 -54 +-1500 0
7501 27 Mar 01 17:49 LAG1 2 0 17 -326 +-3657 762 +-8126 0
7501 27 Mar 01 18:09 LAG2 7 0 8 24 +- 109 -20 +- 111 0
7501 28 Mar 01 06:03 LAG1 15 0 19 -7 +- 25 13 +- 21 1
7501 28 Mar 01 16:21 LAG1 12 0 19 14 +- 50 3 +- 35 2
7501 28 Mar 01 19:51 LAG2 22 0 22 3 +- 21 11 +- 12 3
7501 29 Mar 01 18:09 LAG2 14 0 17 -8 +- 27 -15 +- 34 3
7501 30 Mar 01 13:46 LAG1 5 0 19 63 +- 262 -23 +- 135 0
7501 30 Mar 01 16:57 LAG1 15 0 23 8 +- 24 -23 +- 26 2
7501 30 Mar 01 19:58 LAG2 22 0 13 -12 +- 21 1 +- 13 5
7501 31 Mar 01 18:13 LAG2 20 0 11 3 +- 21 7 +- 17 1

Station 7806 (Metsahovi) (Position fixed, acc. 30 mm)
7806 22 Mar 01 18:37 LAG2 10 0 14 -4 +- 49 14 +- 54 9
7806 22 Mar 01 20:07 LAG1 19 0 21 -22 +- 32 7 +- 17 5
7806 22 Mar 01 23:31 LAG1 19 0 13 -9 +- 28 0 +- 16 8
7806 23 Mar 01 18:37 LAG1 22 0 31 -20 +- 26 -10 +- 13 12
7806 23 Mar 01 22:13 LAG1 18 0 9 -5 +- 30 0 +- 17 7
7806 24 Mar 01 01:43 LAG1 19 0 20 -12 +- 29 8 +- 17 9
7806 24 Mar 01 18:50 LAG2 11 0 29 -17 +- 55 -9 +- 49 12
7806 24 Mar 01 20:53 LAG1 19 0 32 0 +- 30 -17 +- 17 7
7806 25 Mar 01 00:19 LAG1 22 0 23 14 +- 27 -10 +- 14 7
7806 25 Mar 01 19:27 LAG1 10 0 27 -17 +- 47 -14 +- 23 14
7806 25 Mar 01 22:53 LAG1 23 0 13 -1 +- 26 3 +- 13 11
7806 26 Mar 01 02:28 LAG1 12 0 26 -18 +- 63 4 +- 39 10
7806 27 Mar 01 20:21 LAG1 10 0 9 -6 +- 45 -2 +- 39 7
7806 29 Mar 01 20:59 LAG1 21 0 16 -11 +- 27 2 +- 14 10
7806 30 Mar 01 00:37 LAG1 17 0 35 -33 +- 30 10 +- 19 7

Station 7810 (Zimmerwald) (Position fixed, acc. 60 mm)
7810 25 Mar 01 12:59 LAG2 12 0 18 -51 +- 177 28 +- 93 3
7810 27 Mar 01 16:49 LAG1 11 0 18 -15 +- 68 -11 +- 40 4
7810 27 Mar 01 16:55 LAG2 12 0 29 -23 +- 67 6 +- 45 2
7810 27 Mar 01 20:25 LAG1 15 0 24 -24 +- 52 -5 +- 34 2
7810 27 Mar 01 21:13 LAG2 11 0 55 -65 +- 110 10 +- 94 3
7810 27 Mar 01 23:53 LAG1 13 0 13 -8 +- 57 -5 +- 39 2
7810 28 Mar 01 03:13 LAG1 8 0 22 -26 +- 137 -3 +- 83 2
7810 28 Mar 01 15:09 LAG2 5 0 74 -24 +- 280 47 +- 262 1
7810 30 Mar 01 23:42 LAG1 5 0 41 17 +- 658 -27 +- 307 1
7810 31 Mar 01 02:36 LAG1 16 0 51 -30 +- 50 -18 +- 22 8
7810 31 Mar 01 09:47 LAG2 1 0 30 0 +- 0 0 +- 0 0
7810 31 Mar 01 13:19 LAG2 12 3 11 -27 +- 197 20 +- 123 2
7810 31 Mar 01 14:54 LAG1 17 0 65 62 +- 48 13 +- 43 11
7810 31 Mar 01 17:47 LAG2 7 0 25 -50 +- 202 20 +- 138 5
7810 31 Mar 01 18:33 LAG1 12 0 63 -36 +- 58 -27 +- 32 3
7810 31 Mar 01 21:55 LAG1 14 0 43 -14 +- 64 -35 +- 46 3

Station 7811 (Borowiec) (Position fixed, acc. 60 mm)
7811 22 Mar 01 00:57 LAG1 14 0 24 -16 +- 53 12 +- 38 3
7811 26 Mar 01 21:41 LAG1 5 0 24 -26 +- 544 -1 +- 295 2
7811 27 Mar 01 20:23 LAG1 15 0 40 -33 +- 51 -14 +- 36 8
7811 27 Mar 01 23:51 LAG1 13 0 21 -15 +- 55 -10 +- 43 5
7811 28 Mar 01 19:05 LAG1 6 0 43 -46 +- 181 -2 +- 147 1
7811 28 Mar 01 19:18 LAG2 7 0 68 -72 +- 86 19 +- 144 3
7811 28 Mar 01 22:31 LAG1 13 0 37 -30 +- 55 -15 +- 45 10
7811 29 Mar 01 01:59 LAG1 15 0 25 -18 +- 52 -9 +- 35 8
7811 31 Mar 01 18:27 LAG1 15 0 57 -41 +- 52 -30 +- 35 5

Station 7824 (San Fernando) (Position fixed, acc. 40 mm)
7824 22 Mar 01 20:31 LAG1 13 0 21 -8 +- 57 16 +- 37 6
7824 22 Mar 01 22:31 LAG2 7 0 13 19 +- 105 23 +- 122 6
7824 23 Mar 01 03:07 LAG1 13 0 34 29 +- 41 -13 +- 33 6
7824 23 Mar 01 20:37 LAG2 3 0 40 34 +- 89 -3 +- 47 17
7824 23 Mar 01 22:45 LAG1 3 0 85 -8 +- 589 85 +- 588 36
7824 24 Mar 01 21:19 LAG1 2 0 57 -88 +- 431 -341 +-1056 0
7824 24 Mar 01 22:39 LAG2 12 0 35 32 +- 49 2 +- 46 18
7824 25 Mar 01 20:57 LAG2 12 0 27 24 +- 49 -17 +- 44 14
7824 26 Mar 01 19:01 LAG2 18 1 55 58 +- 49 -6 +- 31 18
7824 26 Mar 01 22:04 LAG1 2 0 75 75 +- 243 -1 +- 774 0
7824 28 Mar 01 19:09 LAG2 7 0 93 140 +- 168 37 +- 121 12
7824 28 Mar 01 19:45 LAG1 2 0 164 -617 +-9999 309 +-8958 0
7824 29 Mar 01 02:01 LAG1 15 1 180 167 +- 43 14 +- 33 43
7824 30 Mar 01 00:42 LAG1 3 0 107 1 +- 563 -79 +- 426 9
7824 30 Mar 01 19:21 LAG2 10 0 75 72 +- 47 -5 +- 26 17
7824 30 Mar 01 20:13 LAG1 6 0 83 77 +- 78 4 +- 53 12
7824 30 Mar 01 23:35 LAG1 9 0 137 183 +- 93 -87 +- 76 82
7824 31 Mar 01 02:51 LAG1 5 0 74 73 +- 121 -1 +- 150 6
7824 31 Mar 01 21:39 LAG2 10 0 85 100 +- 71 -20 +- 52 24

Station 7832 (Riyad) (Position solved, acc. 20 mm)
7832 24 Mar 01 10:33 LAG2 22 0 19 13 +- 23 8 +- 18 9
7832 25 Mar 01 08:59 LAG2 8 1 13 -6 +- 112 -4 +- 91 6
7832 26 Mar 01 06:39 LAG2 23 0 14 -5 +- 22 -4 +- 13 11
7832 26 Mar 01 10:49 LAG2 22 0 15 -1 +- 23 8 +- 20 12
7832 26 Mar 01 14:41 LAG1 17 0 18 6 +- 27 5 +- 16 15
7832 26 Mar 01 15:17 LAG2 17 0 31 29 +- 26 2 +- 22 9
7832 27 Mar 01 13:11 LAG2 13 0 19 10 +- 43 -10 +- 46 4
7832 27 Mar 01 13:37 LAG1 9 0 28 -37 +- 47 18 +- 44 2
7832 28 Mar 01 15:39 LAG2 15 0 36 3 +- 36 23 +- 27 10
7832 31 Mar 01 09:15 LAG2 20 1 16 1 +- 26 -11 +- 22 7
7832 31 Mar 01 13:45 LAG2 18 0 34 -31 +- 25 -6 +- 23 11
7832 31 Mar 01 14:55 LAG1 15 0 18 -15 +- 27 -1 +- 13 9

Station 7835 (Grasse) (Position fixed, acc. 30 mm)
7835 28 Mar 01 22:34 LAG1 11 0 29 -24 +- 38 11 +- 39 1
7835 29 Mar 01 21:35 LAG2 2 0 10 31 +-1071 -25 +-1268 0
7835 30 Mar 01 00:41 LAG1 5 0 36 -36 +- 146 0 +- 144 1
7835 30 Mar 01 11:04 LAG2 13 0 12 -10 +- 36 2 +- 18 6
7835 30 Mar 01 19:29 LAG2 7 0 5 -7 +- 59 -6 +- 84 1
7835 31 Mar 01 15:19 LAG1 8 0 77 85 +- 154 -5 +- 102 1
7835 31 Mar 01 17:35 LAG2 19 0 20 -23 +- 35 7 +- 21 5
7835 31 Mar 01 18:39 LAG1 16 0 47 -22 +- 46 -11 +- 19 11
7835 31 Mar 01 21:31 LAG2 16 0 28 -25 +- 35 -5 +- 36 3
7835 31 Mar 01 22:05 LAG1 9 0 21 -14 +- 42 -22 +- 53 1

Station 7836 (Potsdam) (Position fixed, acc. 30 mm)
7836 27 Mar 01 01:30 LAG1 7 0 29 33 +- 177 -2 +- 87 7
7836 28 Mar 01 22:43 LAG1 6 0 8 -10 +- 80 3 +- 90 1

Station 7837 (Shanghai Observatory) (Position fixed, acc. 50 mm)
7837 29 Mar 01 10:35 LAG1 8 0 46 -71 +- 128 19 +- 80 6
7837 29 Mar 01 17:17 LAG1 6 0 39 26 +- 163 13 +- 157 4
7837 29 Mar 01 20:31 LAG1 11 0 58 -62 +- 59 25 +- 33 13
7837 30 Mar 01 12:07 LAG2 3 0 24 -35 +- 797 -7 +- 483 4
7837 30 Mar 01 12:39 LAG1 8 0 45 48 +- 88 -6 +- 96 4
7837 31 Mar 01 11:13 LAG1 15 0 60 -47 +- 50 -13 +- 33 11

Station 7839 (Graz) (Position fixed, acc. 10 mm)
7839 23 Mar 01 18:38 LAG1 24 0 13 -1 +- 19 -6 +- 8 3
7839 23 Mar 01 20:28 LAG2 17 0 18 -12 +- 23 9 +- 15 5
7839 23 Mar 01 22:09 LAG1 12 0 18 12 +- 28 -7 +- 12 5
7839 25 Mar 01 03:51 LAG1 10 0 51 36 +- 48 -12 +- 36 2

Station 7840 (Herstmonceux) (Position fixed, acc. 20 mm)
7840 22 Mar 01 14:41 LAG2 8 0 11 -26 +- 145 18 +- 77 2
7840 28 Mar 01 19:11 LAG2 6 0 31 -29 +- 44 11 +- 32 3
7840 28 Mar 01 19:15 LAG1 5 0 28 -27 +- 50 13 +- 37 4
7840 28 Mar 01 22:45 LAG1 5 0 19 -19 +- 49 4 +- 78 3
7840 29 Mar 01 09:26 LAG2 5 0 52 50 +- 131 1 +- 157 2
7840 30 Mar 01 15:09 LAG2 17 0 20 4 +- 26 11 +- 15 2
7840 30 Mar 01 16:19 LAG1 17 0 12 9 +- 26 -5 +- 19 3
7840 30 Mar 01 19:21 LAG2 16 0 23 -20 +- 28 -4 +- 22 3
7840 30 Mar 01 19:51 LAG1 14 0 16 -4 +- 29 -8 +- 15 3
7840 30 Mar 01 23:23 LAG1 5 0 26 -3 +- 163 -21 +- 117 1

Station 7845 (Grasse) (Position fixed, acc. 20 mm)
7845 26 Mar 01 06:13 LAG1 19 0 22 -13 +- 35 -4 +- 25 13
7845 26 Mar 01 10:55 LAG2 18 0 18 -27 +- 42 8 +- 23 4
7845 27 Mar 01 16:46 LAG1 22 0 23 -18 +- 23 4 +- 11 9
7845 30 Mar 01 11:03 LAG2 14 0 17 -14 +- 31 2 +- 15 6
7845 30 Mar 01 15:31 LAG2 10 0 40 -57 +- 50 23 +- 38 6
7845 31 Mar 01 13:11 LAG2 29 0 34 -33 +- 20 3 +- 11 9
7845 31 Mar 01 14:59 LAG1 22 0 71 41 +- 25 27 +- 17 15

Station 7849 (Mount Stromlo) (Position fixed, acc. 10 mm)
7849 23 Mar 01 08:51 LAG1 4 0 25 -16 +- 426 -6 +- 289 2
7849 24 Mar 01 16:27 LAG2 10 0 15 -11 +- 35 24 +- 50 2
7849 25 Mar 01 18:45 LAG2 11 0 5 -6 +- 37 5 +- 46 1
7849 25 Mar 01 22:55 LAG2 3 0 2 3 +- 83 11 +- 367 2
7849 26 Mar 01 01:10 LAG1 5 0 8 5 +- 48 -1 +- 76 6
7849 26 Mar 01 08:07 LAG1 7 0 19 -17 +- 71 19 +- 43 2
7849 26 Mar 01 12:25 LAG2 13 0 17 3 +- 31 -12 +- 21 4
7849 26 Mar 01 16:37 LAG2 14 0 11 0 +- 26 13 +- 31 3
7849 26 Mar 01 20:23 LAG1 12 0 31 1 +- 27 21 +- 19 2
7849 26 Mar 01 20:55 LAG2 15 0 8 0 +- 28 6 +- 25 3
7849 29 Mar 01 07:27 LAG1 8 0 48 -50 +- 35 20 +- 46 2
7849 29 Mar 01 10:45 LAG2 7 0 10 2 +- 36 6 +- 25 4
7849 29 Mar 01 14:47 LAG2 19 0 18 15 +- 22 -10 +- 18 1
7849 29 Mar 01 19:13 LAG2 3 0 9 -14 +- 233 -8 +- 385 2
7849 30 Mar 01 17:07 LAG2 14 0 20 12 +- 25 18 +- 32 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 010123 - 010328 0/ 10/ 0 0/ 5/ 0 15
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 - 010327 0/ 31/ 0 0/ 15/ 0 46
1893 CRMLAS 001107 - 001202 0/ 5/ 0 0/ 3/ 0 8
7080 MLRS25 001102 - 010402 38/ 81/ 8 39/ 79/ 11 256
7090 ML0514 001101 - 010402 93/111/ 19 102/112/ 9 446
7105 ML0725 001101 - 010331 34/185/ 12 32/147/ 11 421
7110 ML0414 001101 - 010401 25/175/ 12 17/130/ 8 367
7124 ML0819 001107 - 010208 0/ 25/ 0 0/ 16/ 2 43
7210 HOLLAS 001115 - 010330 3/ 41/ 1 0/ 37/ 1 83
7231 WUHA01 001103 - 001205 0/ 8/ 0 0/ 9/ 0 17
7237 CHALAS 001102 - 010330 0/107/ 0 0/ 82/ 0 189
7249 BEJLAS 001101 - 010330 0/ 43/ 0 0/ 32/ 0 75
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 - 010327 0/ 13/ 0 1/ 11/ 0 25
7501 ML0616 001101 - 010401 30/ 33/ 7 24/ 22/ 1 117
7806 METLAS 010209 - 010330 0/ 33/ 0 0/ 8/ 0 41
7810 ZIMLAT 001102 - 010402 15/ 31/ 1 11/ 16/ 4 78
7811 POLLAS 001103 - 010402 0/ 83/ 0 0/ 45/ 0 128
7820 YSLR01 001101 - 010313 0/132/ 1 0/162/ 0 295
7824 SPNLAS 001101 - 010401 2/ 80/ 2 2/ 82/ 2 170
7831 HELLAS 001101 - 001104 0/ 3/ 0 0/ 1/ 0 4
7832 SALRO 001211 - 010402 9/ 16/ 4 35/ 10/ 2 76
7835 GRASSE 001101 - 010402 10/ 93/ 1 11/ 75/ 3 193
7836 GFZLAS 001101 - 010402 5/ 83/ 5 3/ 58/ 2 156
7837 CHILAS 001102 - 010401 0/ 62/ 0 0/ 55/ 0 117
7838 SHOLAS 001107 - 010318 2/ 92/ 0 7/ 91/ 2 194
7839 AUSLAS 001102 - 010401 19/ 83/ 4 21/ 63/ 4 194
7840 RGOLAS 001102 - 010402 32/132/ 7 23/104/ 8 306
7845 GRASLL 001103 - 010402 15/ 32/ 1 24/ 26/ 1 99
7849 MSLO01 001101 - 010401 153/ 49/ 19 138/ 47/ 11 417
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)
--------------------------------------------------------------
010325.0 74.4 +/- 0.1 491.3 +/- 0.1 -31966.24 +/- 0.01
010328.0 82.7 +/- 0.1 492.0 +/- 0.1 -31969.43 +/- 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