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SLR-Report No.6529

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Date:2005-12-19 13:15:00
Sender:Ron Noomen <Ron Noomen <ron@astro.lr.tudelft.nl>>
Subject:[SLR-Report] No. 6529: Delft QL Report December 19, 2005
Author:Ron Noomen
Content:********************************************************************************
SLR Electronic Report 2005-12-19 13:15:00 UTC Message No. 6529
********************************************************************************

Author: Ron Noomen
Subject: Delft QL Report December 19, 2005


WEGENER-2 IERS

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


December 19, 2005


This is a daily report, presenting the results of a continuing analysis of the
most recent global LAGEOS-1 and LAGEOS-2 quick-look laser ranging data. The
report consists of (A) a pass summary, (B) an overview of the analysis results,
detailed statistics of the analysed measurements, and an accumulative pass
overview and (C) the earth rotation parameter solutions submitted to IERS. The
report is based on all quick-look data as received until Mon, Dec 19, 2005.
Questions and comments should be addressed to:

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

Telephone: +31-15-2785377
Telefax : +31-15-2785322
E-mail : ron.noomen@deos.tudelft.nl


A. PASS SUMMARY

The table below gives an overview of the ranging data both on LAGEOS-1 and
LAGEOS-2, as received by the Quick-Look Data Analysis Center (QLDAC) on Mon,
Dec 19, 2005. All data were obtained through the NASA Crustal Dynamics Data
Information system (CDDIS) and the Eurolas Data Center (EDC) in Germany.
The data are unscreened and may span more than a week due to late reporting
by the stations.

------------------------------------------------------------------------------
Station System/Location Period No. of Passes
ID LAGEOS-1 LAGEOS-2
------------------------------------------------------------------------------
1864 Maidanak, Uzbekistan (site 2) 051216 - 051217 2 1
6405 Concepcion, Chile (TIGO 847) 051217 - 051217 1 2
6810 Zimmerwald 846, Switzerland 051218 - 051218 2 1
7080 McDonald Obs., Fort Davis, TX 051218 - 051218 1 1
7090 Yarragadee, Australia 051217 - 051218 4 3
7237 Changchun, China 051217 - 051218 5 4
7810 Zimmerwald 423, Switzerland 051218 - 051218 2 1
7825 Mount Stromlo, Australia 051217 - 051218 6 5
7832 Riyad, Saudi Arabia 051217 - 051219 7 6
7840 Herstmonceux, United Kingdom 051217 - 051218 5 4
7941 Matera, Italy (MLRO 532) 051217 - 051218 2 1
------ ------ --- ---
TOTAL 051216 - 051219 37 29
------------------------------------------------------------------------------


B. ANALYSIS RESULTS

The analysis is based on two orbit solutions using global quick-look normal
points that cover a period of 8 days which are computed simultaneously. This
week´s data interval runs from Sun, Dec 11, 2005 to Mon, Dec 19, 2005. The
measurement and dynamic models used in this analysis are close to the IERS
Standard. The overall model is referred to as QLDACMOD11. The details of this
model can be obtained on request. The terrestrial reference frame is provided
by the ITRF2000 station coordinates solution (extended with coordinates
of new stations, where necessary).

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

-----------------------------------------------------------------------
Satellite LAGEOS-1 LAGEOS-2
Number of Stations 21 21
Number of Passes 195/193 171/170
Number of Normal Points 2195/2173 1950/1928
Weighted RMS of Fit (mm) 13 13
-----------------------------------------------------------------------


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 1864 (Maidanak) (position fixed, acc. 200 mm)
1864 12 Dec 05 15:17 LAG1 6 0 55 -59 +- 270 -20 +- 379 12
1864 12 Dec 05 16:35 LAG2 6 0 54 1 +-1107 34 +- 697 7
1864 14 Dec 05 16:06 LAG1 4 0 66 0 +- 301 -189 +- 964 29
1864 14 Dec 05 16:49 LAG2 5 0 42 -18 +- 320 19 +- 253 20
1864 15 Dec 05 15:03 LAG2 8 0 35 -34 +- 259 7 +- 211 18
1864 16 Dec 05 13:23 LAG1 11 0 67 -65 +- 185 21 +- 153 19
1864 17 Dec 05 15:05 LAG2 7 0 111 -77 +- 419 25 +- 288 12
1864 17 Dec 05 15:31 LAG1 8 0 43 -39 +- 213 15 +- 321 17

Station 1873 (Simeiz) (position fixed, acc. 200 mm)
1873 13 Dec 05 18:42 LAG2 1 0 159 0 +- 0 0 +- 0 0
1873 13 Dec 05 21:09 LAG1 1 0 152 0 +- 0 0 +- 0 0

Station 1884 (Riga) (position fixed, acc. 100 mm)
1884 12 Dec 05 15:13 LAG1 19 0 11 5 +- 68 -3 +- 39 8
1884 12 Dec 05 16:39 LAG2 11 0 7 4 +- 125 -7 +- 115 4
1884 12 Dec 05 18:51 LAG1 15 0 12 -10 +- 80 4 +- 53 5
1884 12 Dec 05 20:31 LAG2 16 0 10 9 +- 77 -3 +- 60 4
1884 13 Dec 05 14:04 LAG1 9 0 29 16 +- 140 11 +- 108 5
1884 13 Dec 05 17:23 LAG1 19 0 30 4 +- 68 16 +- 39 10
1884 13 Dec 05 20:53 LAG1 18 0 31 18 +- 70 14 +- 42 8

Station 6405 (Concepcion) (position solved, acc. 20 mm)
6405 16 Dec 05 18:15 LAG1 16 0 17 -7 +- 25 7 +- 13 14
6405 17 Dec 05 09:13 LAG2 11 0 16 10 +- 19 2 +- 12 12
6405 17 Dec 05 10:01 LAG1 5 0 6 10 +- 181 6 +- 93 5
6405 17 Dec 05 13:31 LAG2 8 0 14 -13 +- 24 -1 +- 33 2

Station 6810 (Zimmerwald 846) (position fixed, acc. 60 mm)
6810 11 Dec 05 00:02 LAG2 25 0 7 5 +- 36 -1 +- 18 4
6810 11 Dec 05 00:57 LAG1 12 0 16 0 +- 52 -8 +- 26 3
6810 11 Dec 05 04:12 LAG2 12 0 13 11 +- 55 1 +- 49 6
6810 11 Dec 05 04:44 LAG1 8 0 10 10 +- 84 -9 +- 73 5
6810 11 Dec 05 13:07 LAG1 19 0 26 25 +- 42 2 +- 32 5
6810 11 Dec 05 14:13 LAG2 13 0 10 11 +- 67 2 +- 81 2
6810 11 Dec 05 16:35 LAG1 15 0 28 0 +- 48 11 +- 19 5
6810 11 Dec 05 17:57 LAG2 22 0 7 3 +- 39 3 +- 21 3
6810 11 Dec 05 20:09 LAG1 18 0 21 -10 +- 43 10 +- 25 3
6810 11 Dec 05 23:33 LAG1 9 0 17 -1 +- 207 7 +- 101 5
6810 12 Dec 05 15:56 LAG1 5 0 15 25 +-1402 -14 +- 511 4
6810 12 Dec 05 16:05 LAG2 25 0 16 -5 +- 36 -8 +- 21 5
6810 12 Dec 05 18:47 LAG1 17 0 21 -20 +- 45 2 +- 23 3
6810 12 Dec 05 20:15 LAG2 20 0 14 -1 +- 41 -8 +- 25 3
6810 12 Dec 05 22:18 LAG1 13 0 22 -17 +- 53 -5 +- 31 3
6810 13 Dec 05 13:51 LAG1 5 0 18 2 +- 253 11 +- 139 2
6810 14 Dec 05 19:35 LAG1 17 0 20 -17 +- 44 5 +- 25 2
6810 14 Dec 05 20:23 LAG2 20 0 10 -3 +- 40 -5 +- 23 2
6810 14 Dec 05 23:00 LAG1 22 0 13 -12 +- 40 -1 +- 21 3
6810 15 Dec 05 00:29 LAG2 24 0 13 0 +- 37 -6 +- 19 3
6810 15 Dec 05 02:29 LAG1 21 0 17 -3 +- 40 -8 +- 21 2
6810 15 Dec 05 14:51 LAG1 11 0 22 -21 +- 55 6 +- 32 3
6810 15 Dec 05 14:59 LAG2 4 0 29 -22 +- 210 -7 +- 232 4
6810 15 Dec 05 18:44 LAG1 4 0 15 -39 +- 548 13 +- 294 1
6810 15 Dec 05 18:47 LAG2 2 0 20 -66 +-1616 -51 +-1798 0
6810 18 Dec 05 14:19 LAG1 16 0 17 -17 +- 49 3 +- 32 5
6810 18 Dec 05 16:51 LAG2 20 0 21 -19 +- 41 7 +- 25 2
6810 18 Dec 05 17:44 LAG1 15 0 22 -19 +- 47 6 +- 28 3

Station 7080 (McDonald Obs.) (position fixed, acc. 20 mm)
7080 17 Dec 05 04:18 LAG2 18 0 13 -10 +- 18 -3 +- 15 4
7080 17 Dec 05 08:23 LAG2 18 0 25 -10 +- 17 14 +- 9 5
7080 18 Dec 05 06:35 LAG2 11 0 21 -21 +- 19 2 +- 22 2
7080 18 Dec 05 09:51 LAG1 3 0 42 62 +- 503 -47 +- 229 1

Station 7090 (Yarragadee) (position fixed, acc. 10 mm)
7090 11 Dec 05 06:27 LAG2 5 0 9 -6 +- 169 -1 +- 92 2
7090 11 Dec 05 06:37 LAG1 3 0 8 -9 +- 34 -5 +- 112 1
7090 11 Dec 05 22:45 LAG1 10 0 6 0 +- 29 3 +- 19 3
7090 11 Dec 05 23:49 LAG2 12 0 5 -3 +- 15 5 +- 16 2
7090 12 Dec 05 03:59 LAG2 15 0 3 0 +- 10 0 +- 10 3
7090 12 Dec 05 05:13 LAG1 14 0 10 -9 +- 14 8 +- 9 2
7090 12 Dec 05 08:27 LAG2 6 0 9 10 +- 60 -1 +- 52 1
7090 12 Dec 05 08:39 LAG1 5 0 8 -10 +- 65 -1 +- 58 0
7090 12 Dec 05 17:45 LAG1 14 0 13 -7 +- 14 -7 +- 13 2
7090 12 Dec 05 21:13 LAG1 12 0 14 -14 +- 12 -4 +- 10 0
7090 12 Dec 05 21:39 LAG2 10 0 6 -11 +- 30 -3 +- 19 1
7090 13 Dec 05 00:37 LAG1 8 0 14 14 +- 16 2 +- 26 3
7090 13 Dec 05 02:15 LAG2 4 0 9 15 +- 72 -12 +- 134 2
7090 13 Dec 05 03:53 LAG1 13 0 9 -7 +- 13 1 +- 12 6
7090 13 Dec 05 06:11 LAG2 9 0 7 3 +- 31 -3 +- 25 1
7090 13 Dec 05 07:09 LAG1 19 0 11 -11 +- 9 0 +- 5 2
7090 13 Dec 05 23:19 LAG1 6 0 15 10 +- 18 16 +- 20 4
7090 14 Dec 05 04:05 LAG2 25 0 7 6 +- 8 -1 +- 6 2
7090 14 Dec 05 09:33 LAG1 3 0 13 -10 +- 82 5 +- 165 0
7090 15 Dec 05 01:23 LAG1 8 0 13 9 +- 15 10 +- 26 5
7090 15 Dec 05 02:21 LAG2 9 0 12 13 +- 16 -12 +- 19 4
7090 15 Dec 05 04:43 LAG1 13 0 5 0 +- 17 3 +- 11 1
7090 15 Dec 05 06:17 LAG2 18 0 4 0 +- 10 1 +- 5 3
7090 15 Dec 05 07:59 LAG1 12 1 11 -9 +- 13 0 +- 8 6
7090 15 Dec 05 17:07 LAG1 8 0 8 -8 +- 18 -2 +- 37 1
7090 15 Dec 05 20:03 LAG2 21 0 10 -6 +- 9 6 +- 6 3
7090 15 Dec 05 21:03 LAG1 8 0 11 -18 +- 124 2 +- 47 2
7090 16 Dec 05 00:19 LAG2 15 0 8 -10 +- 14 4 +- 13 3
7090 16 Dec 05 03:33 LAG1 4 0 6 -16 +- 77 17 +- 81 3
7090 16 Dec 05 04:27 LAG2 19 0 10 5 +- 9 7 +- 8 2
7090 16 Dec 05 06:47 LAG1 14 0 12 -3 +- 13 9 +- 8 2
7090 16 Dec 05 08:26 LAG2 15 0 10 -4 +- 11 10 +- 10 1
7090 16 Dec 05 18:13 LAG2 15 0 4 3 +- 10 2 +- 13 1
7090 16 Dec 05 19:23 LAG1 16 0 8 -10 +- 15 3 +- 8 2
7090 16 Dec 05 22:09 LAG2 19 0 9 -3 +- 9 -5 +- 7 1
7090 16 Dec 05 22:51 LAG1 8 0 9 0 +- 17 6 +- 15 3
7090 17 Dec 05 02:33 LAG2 9 0 10 7 +- 16 -6 +- 29 2
7090 17 Dec 05 05:19 LAG1 19 0 17 0 +- 10 9 +- 6 3
7090 17 Dec 05 06:30 LAG2 12 0 5 -2 +- 12 -2 +- 6 3
7090 17 Dec 05 09:01 LAG1 5 0 27 -27 +- 19 -2 +- 40 2
7090 17 Dec 05 17:51 LAG1 15 0 16 -15 +- 11 -1 +- 8 3
7090 17 Dec 05 20:13 LAG2 18 0 9 -8 +- 9 2 +- 6 3
7090 17 Dec 05 21:21 LAG1 18 0 12 -12 +- 10 0 +- 6 3
7090 18 Dec 05 04:17 LAG1 7 0 12 -14 +- 44 1 +- 31 3
7090 18 Dec 05 04:43 LAG2 21 0 5 2 +- 9 3 +- 6 2
7090 18 Dec 05 07:37 LAG1 15 0 3 -2 +- 15 1 +- 9 2
7090 18 Dec 05 08:59 LAG2 7 0 4 0 +- 23 2 +- 48 4

Station 7105 (Greenbelt) (position fixed, acc. 10 mm)
7105 12 Dec 05 07:27 LAG1 3 0 47 43 +- 451 -37 +- 185 0
7105 13 Dec 05 08:25 LAG2 4 0 5 -28 +- 108 23 +- 91 0
7105 14 Dec 05 07:37 LAG1 17 0 8 -10 +- 13 -1 +- 7 0
7105 14 Dec 05 10:21 LAG2 5 0 7 -1 +- 27 22 +- 81 3
7105 16 Dec 05 10:40 LAG2 3 0 17 -64 +- 143 75 +- 213 5
7105 17 Dec 05 00:23 LAG2 5 0 4 -2 +- 18 -3 +- 22 1
7105 17 Dec 05 00:39 LAG1 8 0 9 -5 +- 27 -2 +- 16 1

Station 7110 (Monument Peak) (position fixed, acc. 10 mm)
7110 13 Dec 05 07:53 LAG2 21 0 14 -12 +- 9 6 +- 6 5
7110 13 Dec 05 09:11 LAG1 20 0 13 -7 +- 9 -5 +- 4 2
7110 13 Dec 05 11:51 LAG2 8 0 26 -9 +- 15 21 +- 14 3
7110 13 Dec 05 13:00 LAG1 4 0 6 -5 +- 21 12 +- 90 1
7110 16 Dec 05 05:27 LAG1 4 0 26 -19 +- 51 12 +- 79 3
7110 16 Dec 05 06:06 LAG2 7 0 10 -8 +- 17 -1 +- 11 2
7110 16 Dec 05 08:49 LAG1 11 0 7 -10 +- 19 2 +- 11 2
7110 16 Dec 05 10:09 LAG2 8 0 48 -7 +- 15 20 +- 6 3
7110 16 Dec 05 12:23 LAG1 11 0 7 -7 +- 16 8 +- 14 1
7110 16 Dec 05 23:49 LAG2 13 0 10 -7 +- 11 -3 +- 6 5
7110 17 Dec 05 00:43 LAG1 10 0 7 -3 +- 13 -4 +- 10 3
7110 17 Dec 05 03:57 LAG2 3 0 12 -121 +- 939 -66 +- 468 1
7110 17 Dec 05 04:15 LAG1 3 0 6 -7 +- 25 -11 +- 74 0

Station 7237 (Changchun) (position fixed, acc. 50 mm)
7237 11 Dec 05 12:53 LAG1 8 0 23 27 +- 75 -9 +- 69 9
7237 11 Dec 05 14:53 LAG2 14 0 30 24 +- 40 -10 +- 26 8
7237 11 Dec 05 16:02 LAG1 15 0 20 17 +- 40 -2 +- 25 7
7237 11 Dec 05 19:08 LAG2 5 0 40 33 +- 69 -22 +- 163 19
7237 12 Dec 05 08:55 LAG2 16 0 28 28 +- 42 -3 +- 31 9
7237 12 Dec 05 11:21 LAG1 9 0 79 50 +- 53 -27 +- 31 9
7237 12 Dec 05 12:55 LAG2 9 0 37 31 +- 51 -13 +- 36 9
7237 12 Dec 05 14:46 LAG1 6 0 23 25 +- 69 -8 +- 50 6
7237 12 Dec 05 17:01 LAG2 6 0 67 18 +- 67 -27 +- 31 3
7237 12 Dec 05 18:21 LAG1 8 0 39 38 +- 54 -2 +- 59 7
7237 13 Dec 05 10:05 LAG1 11 0 35 29 +- 46 -16 +- 32 6
7237 13 Dec 05 11:21 LAG2 8 0 27 34 +- 164 -5 +- 111 7
7237 13 Dec 05 13:33 LAG1 8 0 25 23 +- 56 -2 +- 75 8
7237 13 Dec 05 15:10 LAG2 8 0 39 16 +- 125 -18 +- 97 9
7237 13 Dec 05 16:53 LAG1 13 0 15 5 +- 42 6 +- 23 7
7237 13 Dec 05 19:29 LAG2 6 0 24 43 +- 160 -18 +- 133 2
7237 14 Dec 05 08:53 LAG1 8 0 12 2 +- 71 -2 +- 46 11
7237 14 Dec 05 09:15 LAG2 6 0 13 3 +- 79 -8 +- 45 3
7237 14 Dec 05 12:13 LAG1 10 0 35 27 +- 49 -18 +- 54 5
7237 14 Dec 05 13:09 LAG2 13 0 23 21 +- 47 -1 +- 37 6
7237 14 Dec 05 15:31 LAG1 16 0 34 32 +- 38 -9 +- 24 7
7237 14 Dec 05 17:45 LAG2 6 0 19 13 +- 364 -15 +- 180 7
7237 14 Dec 05 19:03 LAG1 12 0 34 34 +- 46 -1 +- 30 5
7237 15 Dec 05 10:53 LAG1 6 0 65 48 +- 78 -18 +- 63 10
7237 15 Dec 05 11:14 LAG2 17 0 38 31 +- 39 9 +- 29 8
7237 15 Dec 05 14:13 LAG1 11 0 36 34 +- 54 -2 +- 48 7
7237 15 Dec 05 15:23 LAG2 9 0 42 17 +- 120 -18 +- 84 5
7237 15 Dec 05 17:39 LAG1 6 0 22 29 +- 87 10 +- 55 5
7237 16 Dec 05 09:29 LAG2 6 0 15 9 +- 69 -7 +- 48 11
7237 16 Dec 05 09:35 LAG1 4 0 35 24 +- 323 -8 +- 257 1
7237 16 Dec 05 13:01 LAG1 5 0 22 21 +- 131 1 +- 188 7
7237 16 Dec 05 13:34 LAG2 4 0 20 25 +- 203 9 +- 245 8
7237 16 Dec 05 19:55 LAG1 4 0 56 53 +- 76 15 +- 56 9
7237 17 Dec 05 15:03 LAG1 14 0 31 31 +- 43 -11 +- 31 7
7237 17 Dec 05 15:36 LAG2 5 0 17 48 +- 498 17 +- 271 3
7237 17 Dec 05 18:29 LAG1 9 0 21 16 +- 53 -4 +- 32 7
7237 18 Dec 05 09:33 LAG2 14 0 21 17 +- 40 -7 +- 28 5
7237 18 Dec 05 10:21 LAG1 7 0 40 36 +- 59 -9 +- 50 6
7237 18 Dec 05 13:40 LAG2 5 0 35 15 +- 90 -23 +- 94 8
7237 18 Dec 05 13:49 LAG1 7 0 14 2 +- 68 5 +- 56 12
7237 18 Dec 05 17:05 LAG1 14 0 20 18 +- 41 0 +- 24 8
7237 18 Dec 05 17:41 LAG2 10 0 41 23 +- 49 -15 +- 26 6

Station 7501 (Hartebeesthoek) (position fixed, acc. 10 mm)
7501 12 Dec 05 02:21 LAG1 7 0 19 13 +- 46 14 +- 21 3
7501 12 Dec 05 11:35 LAG2 5 0 35 -38 +- 270 -1 +- 149 3
7501 12 Dec 05 12:28 LAG1 13 0 7 4 +- 12 -3 +- 6 1
7501 13 Dec 05 01:03 LAG1 5 0 6 13 +- 117 3 +- 62 2
7501 14 Dec 05 03:23 LAG2 6 0 6 10 +- 50 12 +- 42 1
7501 14 Dec 05 03:34 LAG1 6 0 48 31 +- 58 8 +- 30 3
7501 14 Dec 05 13:27 LAG1 13 0 15 -22 +- 18 8 +- 12 1
7501 15 Dec 05 14:19 LAG2 2 0 18 18 +- 202 -77 +- 435 0
7501 16 Dec 05 00:33 LAG1 13 0 15 -15 +- 11 -1 +- 10 1

Station 7810 (Zimmerwald 423) (position fixed, acc. 60 mm)
7810 11 Dec 05 00:04 LAG2 20 0 13 -11 +- 41 -3 +- 22 5
7810 11 Dec 05 00:57 LAG1 11 0 21 -15 +- 55 -8 +- 29 3
7810 11 Dec 05 04:13 LAG2 8 0 8 -1 +- 65 -2 +- 66 8
7810 11 Dec 05 04:45 LAG1 6 0 20 -8 +- 85 -14 +- 90 4
7810 11 Dec 05 13:05 LAG1 17 0 8 6 +- 46 5 +- 38 3
7810 11 Dec 05 14:15 LAG2 9 0 15 -10 +- 100 -13 +- 130 13
7810 11 Dec 05 16:37 LAG1 13 0 28 -20 +- 52 10 +- 21 4
7810 11 Dec 05 18:01 LAG2 18 0 16 -14 +- 43 2 +- 27 2
7810 11 Dec 05 20:09 LAG1 19 0 31 -27 +- 42 9 +- 23 4
7810 11 Dec 05 23:31 LAG1 9 0 13 4 +- 253 7 +- 113 1
7810 12 Dec 05 15:57 LAG1 2 0 17 -233 +-7825 84 +-3048 0
7810 12 Dec 05 16:19 LAG2 17 0 25 -8 +- 53 -14 +- 38 4
7810 12 Dec 05 18:49 LAG1 16 0 32 -31 +- 47 0 +- 26 2
7810 12 Dec 05 20:17 LAG2 18 0 22 -15 +- 43 -8 +- 29 3
7810 12 Dec 05 22:18 LAG1 7 0 38 -33 +- 83 -3 +- 45 6
7810 13 Dec 05 14:05 LAG1 6 0 15 -13 +- 89 2 +- 107 2
7810 14 Dec 05 19:35 LAG1 15 0 22 -20 +- 48 3 +- 27 3
7810 14 Dec 05 20:23 LAG2 15 0 22 -17 +- 49 -6 +- 31 3
7810 14 Dec 05 23:00 LAG1 21 0 26 -25 +- 40 0 +- 22 4
7810 15 Dec 05 00:29 LAG2 22 0 22 -19 +- 39 -6 +- 21 4
7810 15 Dec 05 02:27 LAG1 20 0 20 -16 +- 41 -6 +- 22 4
7810 15 Dec 05 14:49 LAG1 15 0 19 -17 +- 48 6 +- 26 4
7810 15 Dec 05 14:59 LAG2 5 0 21 -23 +- 194 1 +- 185 3
7810 15 Dec 05 18:45 LAG1 5 0 6 -33 +- 467 16 +- 234 1
7810 18 Dec 05 14:21 LAG1 16 0 14 -16 +- 52 4 +- 35 1
7810 18 Dec 05 16:55 LAG2 17 0 17 -16 +- 45 6 +- 31 2
7810 18 Dec 05 17:44 LAG1 16 0 17 -14 +- 46 6 +- 26 3

Station 7824 (San Fernando) (position fixed, acc. 40 mm)
7824 11 Dec 05 01:05 LAG1 5 0 75 64 +- 118 -12 +- 118 5
7824 11 Dec 05 18:33 LAG2 3 0 61 96 +-1482 -16 +- 701 2
7824 11 Dec 05 20:29 LAG1 5 0 35 44 +- 88 24 +- 153 8
7824 12 Dec 05 19:07 LAG1 7 0 38 46 +- 75 12 +- 76 4
7824 12 Dec 05 20:13 LAG2 19 0 54 58 +- 30 -17 +- 22 7
7824 13 Dec 05 18:11 LAG2 4 0 95 65 +- 845 -12 +- 422 33
7824 15 Dec 05 01:12 LAG2 1 0 41 0 +- 0 0 +- 0 0
7824 15 Dec 05 18:49 LAG2 2 0 64 16 +-4046 62 +-5221 0

Station 7825 (Mount Stromlo) (position solved, acc. 10 mm)
7825 11 Dec 05 02:48 LAG1 16 4 11 6 +- 12 -6 +- 9 6
7825 11 Dec 05 22:13 LAG1 15 0 12 -1 +- 10 10 +- 10 4
7825 11 Dec 05 23:57 LAG2 11 0 5 0 +- 25 1 +- 22 5
7825 12 Dec 05 01:39 LAG1 13 0 16 6 +- 14 9 +- 11 3
7825 12 Dec 05 04:36 LAG2 7 0 21 63 +- 70 -29 +- 42 9
7825 12 Dec 05 17:17 LAG1 17 0 10 2 +- 10 -3 +- 5 4
7825 12 Dec 05 17:51 LAG2 20 0 10 10 +- 9 -3 +- 6 3
7825 12 Dec 05 20:57 LAG1 17 0 9 -5 +- 10 -2 +- 7 4
7825 12 Dec 05 21:53 LAG2 15 2 15 9 +- 11 -6 +- 8 5
7825 13 Dec 05 02:25 LAG2 9 1 17 17 +- 15 -15 +- 22 4
7825 13 Dec 05 16:25 LAG2 4 0 2 -5 +- 67 9 +- 113 1
7825 13 Dec 05 16:33 LAG1 3 0 3 -8 +- 412 5 +- 211 2
7825 13 Dec 05 19:35 LAG1 10 0 22 -11 +- 21 8 +- 15 2
7825 13 Dec 05 19:53 LAG2 17 1 15 0 +- 10 6 +- 6 11
7825 14 Dec 05 00:13 LAG2 7 0 20 5 +- 72 -9 +- 52 9
7825 14 Dec 05 02:19 LAG1 16 6 19 8 +- 15 20 +- 14 5
7825 14 Dec 05 05:51 LAG1 6 0 8 10 +- 37 13 +- 36 4
7825 14 Dec 05 18:03 LAG2 14 0 6 1 +- 11 3 +- 7 3
7825 14 Dec 05 18:12 LAG1 10 0 9 -8 +- 13 0 +- 6 2
7825 14 Dec 05 21:41 LAG1 14 0 11 -11 +- 11 0 +- 10 3
7825 14 Dec 05 22:07 LAG2 25 0 11 -2 +- 8 -5 +- 5 8
7825 15 Dec 05 02:26 LAG2 9 0 19 3 +- 14 -10 +- 7 3
7825 15 Dec 05 04:33 LAG1 4 0 5 3 +- 46 9 +- 65 4
7825 16 Dec 05 03:11 LAG1 4 0 2 -4 +- 48 -4 +- 59 1
7825 16 Dec 05 15:32 LAG1 4 0 29 27 +- 21 11 +- 26 6
7825 16 Dec 05 19:09 LAG1 13 0 14 -16 +- 15 9 +- 9 4
7825 16 Dec 05 22:31 LAG2 21 0 11 -3 +- 9 -7 +- 7 4
7825 17 Dec 05 05:07 LAG1 11 0 11 2 +- 18 4 +- 9 9
7825 17 Dec 05 16:29 LAG2 20 0 6 4 +- 9 2 +- 7 2
7825 17 Dec 05 17:31 LAG1 25 0 10 -7 +- 8 -2 +- 4 5
7825 17 Dec 05 20:21 LAG2 20 0 3 0 +- 9 0 +- 6 2
7825 17 Dec 05 21:19 LAG1 5 0 15 -11 +- 19 21 +- 45 7
7825 18 Dec 05 00:41 LAG2 4 0 5 36 +- 295 21 +- 162 4
7825 18 Dec 05 03:47 LAG1 16 0 5 1 +- 11 0 +- 7 5
7825 18 Dec 05 16:16 LAG1 18 0 7 4 +- 10 2 +- 6 3
7825 18 Dec 05 18:33 LAG2 16 0 4 -2 +- 10 2 +- 8 2
7825 18 Dec 05 19:43 LAG1 22 0 12 -1 +- 8 5 +- 5 7
7825 18 Dec 05 22:43 LAG2 17 0 14 13 +- 10 0 +- 9 3

Station 7832 (Riyad) (position solved, acc. 20 mm)
7832 11 Dec 05 00:35 LAG2 7 0 11 6 +- 97 -3 +- 60 1
7832 11 Dec 05 13:25 LAG1 6 0 17 -16 +- 27 0 +- 22 6
7832 11 Dec 05 14:07 LAG2 6 0 23 2 +- 173 14 +- 97 2
7832 11 Dec 05 18:21 LAG2 2 0 18 -202 +-2043 -117 +-1298 0
7832 11 Dec 05 22:37 LAG2 10 0 11 22 +- 65 17 +- 37 2
7832 11 Dec 05 23:13 LAG1 11 0 3 0 +- 39 0 +- 22 3
7832 12 Dec 05 02:53 LAG2 6 0 5 4 +- 27 6 +- 93 1
7832 12 Dec 05 12:05 LAG1 10 0 11 -2 +- 28 -4 +- 15 4
7832 12 Dec 05 12:35 LAG2 6 0 11 6 +- 60 6 +- 70 1
7832 12 Dec 05 16:15 LAG2 11 0 14 -17 +- 32 -16 +- 24 5
7832 12 Dec 05 20:57 LAG2 11 0 14 -13 +- 26 0 +- 29 3
7832 12 Dec 05 21:55 LAG1 9 0 8 -12 +- 49 -10 +- 32 3
7832 13 Dec 05 00:51 LAG2 7 0 22 32 +- 55 10 +- 45 4
7832 13 Dec 05 01:27 LAG1 9 0 22 16 +- 23 -9 +- 24 4
7832 13 Dec 05 14:03 LAG1 5 0 12 -26 +- 181 -7 +- 96 1
7832 13 Dec 05 14:25 LAG2 6 0 23 -5 +- 118 13 +- 85 2
7832 13 Dec 05 22:57 LAG2 11 0 9 12 +- 27 5 +- 22 3
7832 14 Dec 05 00:01 LAG1 8 0 12 15 +- 89 13 +- 45 3
7832 14 Dec 05 12:45 LAG2 7 0 14 6 +- 36 11 +- 50 2
7832 14 Dec 05 12:59 LAG1 9 0 10 -14 +- 51 3 +- 29 3
7832 14 Dec 05 16:21 LAG1 5 0 9 -3 +- 39 -14 +- 87 1
7832 14 Dec 05 16:31 LAG2 10 0 9 -6 +- 65 1 +- 48 2
7832 17 Dec 05 14:51 LAG2 8 0 23 4 +- 72 20 +- 54 3
7832 17 Dec 05 15:40 LAG1 4 0 51 36 +- 103 -16 +- 113 4
7832 17 Dec 05 22:07 LAG1 11 0 10 -8 +- 20 -4 +- 11 4
7832 17 Dec 05 23:19 LAG2 11 0 16 19 +- 44 2 +- 27 2
7832 18 Dec 05 01:47 LAG1 7 0 25 15 +- 36 -17 +- 54 3
7832 18 Dec 05 10:54 LAG1 12 0 15 11 +- 22 3 +- 19 6
7832 18 Dec 05 12:59 LAG2 10 0 6 -5 +- 29 -6 +- 29 4
7832 18 Dec 05 14:19 LAG1 5 0 21 -6 +- 130 10 +- 88 1
7832 18 Dec 05 17:03 LAG2 3 0 3 -59 +-1017 -34 +- 623 0
7832 18 Dec 05 20:56 LAG1 12 0 13 7 +- 20 8 +- 19 4
7832 18 Dec 05 21:23 LAG2 12 0 13 7 +- 25 -4 +- 17 4

Station 7838 (Simosato Observatory) (position fixed, acc. 30 mm)
7838 12 Dec 05 07:58 LAG1 14 0 35 27 +- 25 -16 +- 18 5
7838 12 Dec 05 08:45 LAG2 6 0 23 65 +- 131 29 +- 76 4
7838 12 Dec 05 13:03 LAG2 4 0 46 59 +- 74 23 +- 82 7
7838 12 Dec 05 17:12 LAG2 7 0 46 46 +- 53 0 +- 45 2
7838 13 Dec 05 07:11 LAG2 5 0 39 36 +- 52 7 +- 90 4
7838 13 Dec 05 15:24 LAG2 8 0 55 58 +- 37 10 +- 46 4
7838 14 Dec 05 05:11 LAG1 15 0 16 13 +- 25 9 +- 21 4
7838 14 Dec 05 08:48 LAG1 11 0 31 31 +- 28 -1 +- 27 2
7838 14 Dec 05 09:15 LAG2 12 0 59 40 +- 40 17 +- 29 2
7838 14 Dec 05 17:22 LAG2 15 0 34 35 +- 25 6 +- 18 5
7838 14 Dec 05 18:50 LAG1 20 0 29 22 +- 21 11 +- 14 9
7838 15 Dec 05 07:02 LAG2 18 0 35 34 +- 23 15 +- 17 5
7838 15 Dec 05 11:17 LAG2 8 0 56 77 +- 47 53 +- 45 10
7838 16 Dec 05 05:54 LAG1 22 0 22 21 +- 20 0 +- 11 4
7838 16 Dec 05 09:14 LAG2 18 0 61 53 +- 22 23 +- 16 8

Station 7839 (Graz) (position fixed, acc. 10 mm)
7839 11 Dec 05 00:07 LAG2 24 0 5 0 +- 8 -2 +- 4 1
7839 11 Dec 05 00:51 LAG1 15 0 11 -3 +- 10 -5 +- 5 1
7839 11 Dec 05 20:07 LAG1 14 0 22 -12 +- 11 10 +- 6 1
7839 11 Dec 05 22:09 LAG2 22 0 11 3 +- 8 5 +- 4 1
7839 11 Dec 05 23:27 LAG1 27 0 10 0 +- 8 4 +- 3 2
7839 12 Dec 05 02:17 LAG2 18 0 5 4 +- 10 1 +- 5 1
7839 12 Dec 05 03:05 LAG1 17 0 4 2 +- 11 -1 +- 8 1

Station 7840 (Herstmonceux) (position fixed, acc. 20 mm)
7840 11 Dec 05 00:11 LAG2 20 0 6 1 +- 15 -4 +- 10 1
7840 11 Dec 05 00:59 LAG1 13 0 12 -1 +- 20 -6 +- 10 2
7840 11 Dec 05 04:09 LAG2 12 0 3 2 +- 19 -1 +- 19 1
7840 11 Dec 05 04:43 LAG1 13 0 6 0 +- 18 -5 +- 18 2
7840 11 Dec 05 16:43 LAG1 15 0 17 1 +- 17 7 +- 8 2
7840 11 Dec 05 18:01 LAG2 23 0 12 5 +- 13 6 +- 8 2
7840 11 Dec 05 20:15 LAG1 14 0 16 -8 +- 17 8 +- 10 2
7840 11 Dec 05 22:09 LAG2 17 0 12 3 +- 16 6 +- 9 3
7840 11 Dec 05 23:37 LAG1 18 0 11 6 +- 15 4 +- 8 4
7840 12 Dec 05 02:13 LAG2 16 0 3 1 +- 16 1 +- 9 1
7840 12 Dec 05 03:13 LAG1 18 0 6 -2 +- 15 -2 +- 9 2
7840 12 Dec 05 15:21 LAG1 19 0 17 12 +- 15 -6 +- 9 4
7840 12 Dec 05 16:19 LAG2 16 0 10 5 +- 16 -7 +- 15 2
7840 14 Dec 05 16:45 LAG1 2 0 12 273 +-2108 -110 +- 815 0
7840 14 Dec 05 16:49 LAG2 7 0 5 1 +- 51 2 +- 42 1
7840 14 Dec 05 19:39 LAG1 17 0 2 -1 +- 16 0 +- 9 1
7840 14 Dec 05 20:23 LAG2 12 0 7 6 +- 22 0 +- 14 2
7840 15 Dec 05 14:51 LAG1 16 0 8 6 +- 16 3 +- 12 1
7840 15 Dec 05 18:19 LAG1 10 0 15 -4 +- 21 7 +- 9 3
7840 15 Dec 05 18:35 LAG2 17 0 10 6 +- 16 3 +- 9 3
7840 16 Dec 05 16:45 LAG2 4 0 6 20 +- 290 9 +- 195 0
7840 16 Dec 05 17:13 LAG1 9 0 15 10 +- 40 2 +- 23 3
7840 16 Dec 05 23:51 LAG1 21 0 8 6 +- 14 -2 +- 7 3
7840 17 Dec 05 00:53 LAG2 18 0 8 7 +- 16 -4 +- 11 2
7840 17 Dec 05 03:27 LAG1 20 0 13 -8 +- 14 -6 +- 10 1
7840 17 Dec 05 15:05 LAG2 7 0 30 -31 +- 25 14 +- 59 0
7840 17 Dec 05 15:35 LAG1 20 0 12 3 +- 14 -6 +- 8 3
7840 17 Dec 05 18:49 LAG2 15 0 13 2 +- 17 7 +- 10 2
7840 17 Dec 05 19:05 LAG1 17 0 12 11 +- 16 0 +- 8 5
7840 17 Dec 05 22:34 LAG1 9 0 6 -6 +- 22 0 +- 10 1
7840 17 Dec 05 22:47 LAG2 19 0 12 10 +- 15 1 +- 8 4
7840 18 Dec 05 01:59 LAG1 23 0 11 2 +- 13 -5 +- 7 5
7840 18 Dec 05 02:55 LAG2 16 0 6 -3 +- 16 -5 +- 15 1
7840 18 Dec 05 14:17 LAG1 15 0 5 4 +- 17 1 +- 14 2

Station 7841 (Potsdam) (position solved, acc. 10 mm)
7841 12 Dec 05 18:57 LAG1 11 0 7 0 +- 12 -4 +- 11 5
7841 12 Dec 05 20:26 LAG2 13 0 11 0 +- 12 -1 +- 7 10
7841 12 Dec 05 22:13 LAG1 20 0 6 0 +- 9 -2 +- 5 4
7841 13 Dec 05 00:23 LAG2 12 0 12 -8 +- 19 -11 +- 14 6

Station 7941 (Matera) (position solved, acc. 10 mm)
7941 12 Dec 05 15:17 LAG1 14 0 17 5 +- 11 -7 +- 5 2
7941 12 Dec 05 16:05 LAG2 12 0 13 5 +- 21 -5 +- 12 1
7941 12 Dec 05 18:53 LAG1 2 0 16 -5 +- 954 5 +- 505 0
7941 14 Dec 05 19:37 LAG1 15 0 4 3 +- 10 0 +- 8 3
7941 14 Dec 05 20:45 LAG2 4 0 8 -4 +- 104 -13 +- 111 2
7941 16 Dec 05 12:59 LAG2 8 0 7 7 +- 16 0 +- 38 1
7941 16 Dec 05 13:33 LAG1 7 0 10 3 +- 27 14 +- 29 1
7941 16 Dec 05 16:35 LAG2 14 0 10 -3 +- 11 4 +- 5 0
7941 16 Dec 05 20:33 LAG1 1 0 27 0 +- 0 0 +- 0 0
7941 16 Dec 05 20:49 LAG2 17 0 7 -6 +- 10 0 +- 6 1
7941 16 Dec 05 23:41 LAG1 23 0 3 0 +- 8 0 +- 4 3
7941 17 Dec 05 00:55 LAG2 21 0 7 1 +- 9 -4 +- 5 2
7941 17 Dec 05 03:51 LAG1 2 0 26 -100 +-1668 45 +-1028 0
7941 17 Dec 05 12:05 LAG1 6 0 23 -30 +- 60 -7 +- 61 1
7941 18 Dec 05 13:01 LAG2 5 0 11 14 +- 26 5 +- 25 2
7941 18 Dec 05 14:23 LAG1 7 0 5 6 +- 22 6 +- 23 2

Station 8834 (Wettzell) (position fixed, acc. 10 mm)
8834 11 Dec 05 00:19 LAG2 19 0 11 -3 +- 11 -4 +- 7 6
8834 11 Dec 05 13:15 LAG1 9 0 6 6 +- 15 -1 +- 11 2
8834 11 Dec 05 14:33 LAG2 8 0 3 -3 +- 26 1 +- 35 2
8834 11 Dec 05 22:15 LAG2 11 0 14 -4 +- 12 7 +- 7 4
8834 12 Dec 05 02:21 LAG2 7 0 12 -9 +- 18 3 +- 13 1
8834 12 Dec 05 03:11 LAG1 14 0 9 -3 +- 11 -3 +- 9 7
8834 12 Dec 05 11:49 LAG1 4 0 11 -21 +- 47 -33 +- 117 0
8834 12 Dec 05 15:41 LAG1 3 0 6 -3 +- 130 -1 +- 130 3
8834 12 Dec 05 16:51 LAG2 4 0 26 11 +- 252 -18 +- 125 0
8834 12 Dec 05 18:59 LAG1 3 0 20 -30 +- 104 -9 +- 99 1
8834 12 Dec 05 20:31 LAG2 5 0 5 -2 +- 21 5 +- 28 2
--------------------------------------------------------------------------------



Distribution of daytime, nighttime and twilight passes since Jan 1, 2003:
--------------------------------------------------------------------------
Station System Period Number of Passes
LAGEOS-1 LAGEOS-2
Day/Night/Twil. Day/Night/Twil. Total
--------------------------------------------------------------------------
1824 KIEVLA 051005 - 051102 0/ 9/ 0 0/ 3/ 0 12
1831 LVIL 050703 - 051103 0/ 68/ 0 0/ 15/ 0 83
1864 MD2LAS 050701 - 051217 0/122/ 0 0/ 53/ 0 175
1873 SIMLAS 050701 - 051213 0/ 58/ 0 0/ 12/ 0 70
1884 RIGLAS 050703 - 051213 0/ 98/ 1 0/ 24/ 0 123
1893 CRMLAS 050723 - 051013 0/ 17/ 0 0/ 0/ 0 17
6405 TIGO 050705 - 051217 50/ 12/ 3 44/ 32/ 4 145
6810 ZIMLAT 050701 - 051218 107/217/ 22 144/119/ 18 627
7080 MLRS25 050701 - 051218 7/ 73/ 2 10/ 60/ 3 155
7090 ML0514 050701 - 051218 184/147/ 32 148/216/ 18 745
7105 ML0725 050704 - 051217 13/ 95/ 10 21/ 57/ 7 203
7110 ML0414 050701 - 051217 47/185/ 27 53/ 93/ 9 414
7124 ML0819 050818 - 051102 1/ 14/ 2 1/ 32/ 1 51
7130 TL04** 050803 - 051103 8/ 26/ 1 12/ 10/ 2 59
7237 CHALAS 050410 - 051218 0/184/ 2 0/124/ 0 310
7249 BEJLAS 050703 - 051207 0/ 92/ 0 0/ 60/ 0 152
7355 TROS02 050701 - 050906 0/ 24/ 0 0/ 0/ 0 24
7358 GMSL 050802 - 051129 7/ 16/ 0 2/ 8/ 0 33
7405 TIGO 050705 - 051107 2/ 5/ 0 0/ 9/ 0 16
7501 ML0616 050701 - 051216 21/ 45/ 5 13/ 64/ 3 151
7810 ZIMLAT 050701 - 051218 106/214/ 22 145/116/ 19 622
7811 POLLAS 050704 - 051201 0/ 88/ 0 0/ 23/ 0 111
7824 SPNLAS 050701 - 051215 10/150/ 8 10/ 80/ 7 265
7825 STL3 050702 - 051218 288/111/ 22 146/171/ 23 761
7832 SALRO 050702 - 051219 89/219/ 25 102/158/ 19 612
7835 GRASSE 050701 - 050705 0/ 3/ 0 0/ 2/ 0 5
7838 SHOLAS 050714 - 051216 22/ 98/ 7 21/ 80/ 4 232
7839 AUSLAS 050702 - 051212 53/129/ 21 95/ 52/ 4 354
7840 RGOLAS 050702 - 051218 74/223/ 27 110/101/ 11 546
7841 GFZLA3 050713 - 051213 8/ 87/ 8 7/ 32/ 2 144
7848 FTLR06 050515 - 051027 6/ 48/ 2 5/ 22/ 4 87
7941 MLROnn 050701 - 051218 50/139/ 12 67/ 61/ 10 339
8834 WLRS01 050702 - 051212 81/169/ 27 111/ 82/ 11 481
--------------------------------------------------------------------------


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)
--------------------------------------------------------------
051212.0 63.4 +/- 0.1 388.0 +/- 0.1 -32709.01 +/- 0.02
051213.0 62.6 +/- 0.1 388.0 +/- 0.1 -32709.55 +/- 0.02
051214.0 63.0 +/- 0.1 387.7 +/- 0.1 -32709.88 +/- 0.04
051215.0 64.0 +/- 0.1 387.8 +/- 0.1 -32709.92 +/- 0.04
051216.0 63.6 +/- 0.1 388.1 +/- 0.1 -32709.97 +/- 0.05
051217.0 64.5 +/- 0.1 389.0 +/- 0.1 -32709.92 +/- 0.06
051218.0 65.0 +/- 0.1 388.8 +/- 0.1 -32710.01 +/- 0.06
--------------------------------------------------------------



D. COMMENTS

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

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

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

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


From: Ron Noomen

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