Subject: [IGSMAIL-127] JPL analysis report
From: J.F. Zumberge
Date: 2 NOV 1992 18:25:41

***********************************************************************
IGS Electronic Mail        2-NOV-1992 18:25:41       Message Number 127
***********************************************************************
 
==============================================================================
                   THIS FILE CONTAINS 5 MESSAGES
==============================================================================

From:    J.F. Zumberge
Subject: JPL analysis report
         -------------------

Submitted by

J F Zumberge, G Blewitt, M B Heflin, D C Jefferson, F H Webb

all at the Jet Propulsion Laboratory, California Institute of Technology, 
Pasadena, CA  91109.

The following files have been posted on BODHI (for access to BODHI contact
[email-masked]):

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl06667.sum           This text file.
jpl06667.erp           Earth rotation parameters for GPS week 666.
jpl06667.sp1           GPS ephemerides for GPS week 666, sp1 format.
jpl06667.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

Beginning with this week's submission, we have corrected a bug in our software
which resulted in occasional large (hundreds of meters to 3-4 km) errors in
the sp1 (and sp3) products. The error would occur only when a spacecraft was
within 3 degrees of perfect alignment with the earth and sun (which occurs for
eclipsing satellites for a ~10-minute period every six hours). We expect that
1 or 2 records in a thousand may have been affected (where a "record" is 
defined as the reported position of one satellite at one time.)

Earth orientation and terrestrial site locations were not affected by this
error.

Thanks to Jan Kouba, Pierre Tetreault, and Clyde Goad for providing us
with helpful diagnostic information.

Also beginning with this week's submission, our ephemerides refer to
the spacecraft center of mass instead of the antenna phase center.

A-S testing occurred during "10 Oct 92 0100 UT to 12 Oct 92 1000 UT" and
"17 Oct 92 0100 UT to 19 Oct 92 1000 UT", according to the file
pub/gps/gpstd.txt obtained from tycho.usno.navy.mil. Results for Sunday,
Oct 11, and Saturday, Oct 17, are not included in this submission. The
results for Monday, Oct 12, exclude data from Block-II satellites
acquired when operating in cross-correlated mode.

Also, according to the file pub/gps/gpsn4.txt, GPS26 was scheduled unusable
for up to 8 hours on 13 Oct 92 (day 287). Our analysis confirms that the
behaviour of this satellite is poorly modeled on that day. The corresponding
data have thus been de-weighted.

We continue to de-weight data from GPS27 for this week.

WARNING: GPS26 is not well modeled on Tuesday, Oct 13. We recommend using
the broadcast ephemeris for that satellite and day.

JPL LODR TABLE                               GPS week 666 (1992 Oct 12 - Oct 16)
  MJD       LODR     +/-
          (ms/day)
 48907.5    2.37     0.09
 48908.5    2.50     0.07
 48909.5    2.25     0.06
 48910.5    2.46     0.06
 48911.5    2.34     0.06
END LODR TABLE

NOTE: In the following table, UT1R-UTC are the assumed nominal values from
IERS Bulletin-B predicts; estimated LODR values are given in the previous
table. See IGS Mail Message 97 for details.

JPL UTPM TABLE                               GPS week 666 (1992 Oct 12 - Oct 16)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 48907.5   .08744   .49892   .26258  .00042  .00048  .00000  .0 -.06  .00  .00  26 19  0
 48908.5   .08966   .49727   .26041  .00019  .00020  .00000  .0 -.02  .00  .00  26 19  0
 48909.5   .09293   .49685   .25823  .00017  .00019  .00000  .0 -.05  .00  .00  26 19  0
 48910.5   .09585   .49626   .25604  .00017  .00018  .00000  .0 -.06  .00  .00  26 19  0
 48911.5   .09848   .49593   .25384  .00019  .00020  .00000  .0 -.07  .00  .00  26 19  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 666:

JPL ORBIT REPEATABILITY TABLE                GPS week 666 (1992 Oct 12 - Oct 16)
                 92 10 12   92 10 13   92 10 14   92 10 15   92 10 16
prn    rms (m)
  2                  0.3        0.43       0.29       0.27       0.1 
  3                  1.1        0.91       0.96       1.00       0.8 
 11                  0.2        0.31       0.25       0.26       0.2 
 12                  0.3        0.24       0.25       0.21       0.2 
 13                  0.3        0.40       0.32       0.33       0.4 
 14                  0.2        0.41       0.35       0.31       0.3 
 15                  0.2        0.28       0.36       0.20       0.2 
 16                  0.3        0.33       0.72       0.73       0.4 
 17                  0.3        0.36       0.49       0.38       0.3 
 18                  0.4        0.97       0.97       0.42       0.3 
 19                  0.3        0.44       0.23       0.26       0.3 
 20                  0.5        0.26       0.33       0.21       0.2 
 21                  0.1        0.25       0.25       0.22       0.2 
 23                  0.2        0.21       0.21       0.17       0.2 
 24                  0.9        0.47       0.53       0.53       0.5 
 25                  0.3        0.42       0.36       0.25       0.3 
 26                113.7      130.72     582.34       0.15       0.1 
 27                  0.9        1.10       1.06       1.28       1.5 
 28                  0.2        0.34       0.41       0.40       0.3 
END ORBIT REPEATABILITY TABLE

As described in IGS Mail Message 37, the following table compares the JPL
precise ephemerides with those from the broadcast ephemeris:

JPL COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
                 92 10 12   92 10 13   92 10 14   92 10 15   92 10 16
prn    rms (m)
  2                 12.4       11.9       11.2       11.2        9.1 
  3                 19.5       16.1       13.9       13.3       13.2 
 11                  4.2        4.1        4.6        4.9        6.3 
 12                 15.0        9.4        5.5        3.6       10.5 
 13                  9.2        6.7        6.2        7.2        4.6 
 14                  5.3        5.9        5.0        4.4        5.6 
 15                  7.8        9.2        6.1        3.2        7.1 
 16                  7.9        7.4        7.4        7.1        6.9 
 17                  7.2        9.5        6.4        5.6        6.8 
 18                 10.3        8.7        8.0        9.8        9.7 
 19                  3.9        3.6        3.9        4.3        4.7 
 20                  7.1        8.9        5.8        4.2        3.9 
 21                  8.4        3.9        6.7        5.5        6.5 
 23                  6.7        6.9        7.0        7.4        6.8 
 24                 12.4       10.8        8.9        9.8        9.9 
 25                 10.5        9.8        7.7        8.3        9.1 
 26                 11.9       52.1       21.7       16.3       16.6 
 27                 18.3       20.9       20.4       15.9       19.0 
 28                  3.3        4.6        3.3        3.1        3.9 
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

The following table, as explained in IGS Mail Message 91, indicates which
tracking sites were used in this week's analysis:

JPL GROUND STATION INCLUSION TABLE           GPS week 666 (1992 Oct 12 - Oct 16)
                 92 10 12   92 10 13   92 10 14   92 10 15   92 10 16

ALBH                 X          X          X          X          X           
ALGO*                X          X          X          X          X           
FAIR*                X          X          X          X          X           
GOLD                 X          X          X          X          X           
HART                 X          X          X          X          X           
HERS                 X          X          X          X          X           
JPLM                 X          X          X          X          X           
KOSG                 X          X          X          X          X           
MADR*                X          X          X          X          X           
MASP                 X          X          X          X          X           
MATE                 X          X          X          X          X           
MCMU                 X          X          X          X          X           
METS                 X          X          X          X          X           
NYAL                 X          X          X          X          X           
ONSA                 X          X          X          X          X           
PAMA                 X          X          X          X          X           
PENT                 X          X          X          X          X           
SANT*                X          X          X          X          X           
STJO                 X          X          X          X          X           
TAIW                 X          X          X          X          X           
TIDB                 X          X          X          X          X           
TROM*                X          X          X          X          X           
USUD                 X          X          X          X          X           
WETT                 X          X          X          X          X           
YAR1*                X          X          X          X          X           
YELL                 X          X          X          X          X           
_______________________
*Indicates fiducial site.
END GROUND STATION INCLUSION TABLE

==============================================================================
From:     Joachim Feltens
Subject:  ESA analysis report
          -------------------

-------------------------
ANALYSIS CENTRE: ESA/ESOC
-------------------------

OUTLINE OF THE ESTIMATION OF GPS-ORBITS AND EARTH ROTATION PARAMETERS AT THE
ESOC PROCESSING CENTER FOR IGS

J.M.Dow, S.Casotto, J.Feltens, S.Frey, C.Garcia-Martinez, T.Martin-Mur

Description of analysis for period 1992 October 18 - 24

1. SOFTWARE USED:   GPSOBS/BAHN5

2. MODELS USED AND PARAMETERS ESTIMATED/FIXED

   For a description of models and  parameters we are using ==> see IGS-Mail  51
   For updates of the models and parameters used =============> see IGS-Mail 114

3. GROUND STATIONS (if being estimated, one position (X,Y,Z) every day):

      The following table gives an overview over the ground stations,  that have
      been included into the GPS-data processing at ESOC. Except where otherwise
      noted ("remarks"), corrections are taken from IGS Mail No. 90  -  IGS site
      information and coordinates,updated version of IERS/IGS Tables in IGS Mail
      No. 65  -  (Boucher and Altamimi).
      __________________________________________________________________________
                          |             |    |    GPS WEEK 666     |
                          |             |    | 2  2  2  2  2  2  2 |
                          |             |    | 9  9  9  9  9  9  9 |
              SITE        |   COUNTRY   |CODE| 2  3  4  5  6  7  8 |  REMARKS
      --------------------|-------------|----|---------------------|------------
        Algonquin         | Canada      |ALGO| F  F  F  F  F  F  F |
        CANB/Tidbinbilla  | Australia   |TIDB| ------------------- |
        Penticton         | Canada      |DRAO| F  F  F  F  F  F  F |
        Fairbanks         | U.S.A/Alaska|FAIR| F  F  F  F  F  F  F |
        Goldstone         | U.S.A.      |GOLD| F  F  F  F  F --- F |
        Hartebeesthoek    | South Africa|HART| F  F  F  F  F  F  F |
        Herstmonceux      | U.K.        |HERS| F  F  F  F  F  F  F |
        Hobart/Tasmania   | Australia   |HOBA| e  e  e  e  e  e  e |
        JPL Mesa          | U.S.A./CA   |JPLM| -------------- e -- | obs. file
        Kokee Park        | U.S.A/Hawaii|KOKB| ------------------- |
        Kourou      (ESA) | French Guyan|KOUR| ------------------- | own estim.
        Madrid            | Spain       |MADR| F  F  F  F  F  F  F |
        Maspalomas  (ESA) | Spain/Can.Is|MASP| e  e  e  e  e  e  e |
        Matera            | Italy       |MATE| F  F  F  F  F  F  F |
        McMurdo           | Antarctica  |MCMU| e  e  e  e  e  e  e |
        Metsahovi         | Finland     |METS| F  F  F  F  F  F  F |
        Ny Alesund/Spitzb.| Norway      |NYAL| e  e  e  e  e  e  e |
        Onsala            | Sweden      |ONSA| F  F  F  F  F  F  F |
        Pamate/Tahiti     | France      |PAMA| e  e  e  e  e  e  e |
        Santiago          | Chile       |SANT| F  F  F  F  F --- F |
        St.John's, NF     | Canada      |STJO| e  e  e  e  e  e  e |
        Tai-Shi           | Taiwan      |TAIW| ----- e  e  e  e -- |
        Usuda             | Japan       |USUD| e  e  e  e  e  e  e |
        Wettzell          | Germany     |WETT| F  F  F  F  F  F  F |
        Yaragadee         | Australia   |YAR1| F  F  F  F  F  F  F |
        Yellowknife       | Canada      |YELL| F  F  F  F  F  F  F |

      with: "F" ... coordinates of ground station kept fixed,
            "e" ... coordinates of ground station estimated,
            "-" ... ground station not included on that day.

    - There were problems with Tidbinbilla during the whole week and so we
      took Hobart instead of Tidbinbilla into our ground station network.
    - On day 297 (October 23), we had no data from Goldstone and from San-
      tiago. Instead of Goldstone JPL Mesa has been used on this day.

4. PRODUCTS GENERATED

   The following products are generated and stored in CDDIS at NASA/GSFC:

   ESA0667*.EPH   - Precise GPS orbits, * = 0 for Sunday ,..., 6 for Saturday
   ESA06677.ERP   - Earth rotation results for week beginning 1992 October 18
   ESA06677.SUM   - The name of this text file

==============================================================================
From:    Yehuda Bock
Subject: SIO analysis report
         -------------------

SIO PGGA/GARNER Analysis Center Results (31 Oct. 1992)

Yehuda Bock, Peng Fang and Keith Stark

This week we include the following new information:
                                  
Polar motion results for 17 to 23 Oct.

Notes:

(1) AS effects polar motion estimates on 17 - 18 Oct.
(2) Coordinates/Reference Frame used for tracking stations described 
in results of 24 Sept. 1992

* MIT_TO_IERS: Run on 1992/10/31  9: 8
* Input file : pmu103192.mit
 48780.5  -0.15613  0.32205 -0.519883  0.00021 0.00021 0.000000 1.96  0.109  0.000  0.000   21  16 0
 48781.5  -0.15372  0.32385 -0.522617  0.00027 0.00025 0.000000 1.46  0.046  0.000  0.000   21  17 0
 48782.5  -0.15455  0.32543 -0.525143  0.00026 0.00023 0.000000 1.29  0.117  0.000  0.000   21  17 0
 48783.5  -0.15467  0.32866 -0.527309  0.00020 0.00020 0.000000 1.81 -0.010  0.000  0.000   21  17 0
 48784.5  -0.15518  0.33080 -0.529055  0.00027 0.00024 0.000000 1.41  0.080  0.000  0.000   22  17 0
 48785.5  -0.15367  0.33296 -0.530225  0.00023 0.00022 0.000000 1.43  0.000  0.000  0.000   22  17 0
 48786.5  -0.15379  0.33598 -0.531264  0.00023 0.00022 0.000000 1.71 -0.024  0.000  0.000   21  17 0
 48787.5  -0.15227  0.33915 -0.532088  0.00037 0.00033 0.000000 1.61 -0.062  0.000  0.000   17  17 0
 48788.5  -0.15204  0.34224 -0.532830  0.00020 0.00022 0.000000 1.49 -0.011  0.000  0.000   21  17 0
 48789.5  -0.15227  0.34537 -0.533614  0.00024 0.00025 0.000000 1.36 -0.040  0.000  0.000   20  17 0
 48790.5  -0.15178  0.34806 -0.534539  0.00025 0.00025 0.000000 1.74 -0.044  0.000  0.000   21  17 0
 48791.5  -0.15268  0.35123 -0.535654  0.00023 0.00024 0.000000 1.81  0.109  0.000  0.000   20  17 0
 48792.5  -0.15185  0.35393 -0.536981  0.00020 0.00019 0.000000 2.28  0.060  0.000  0.000   20  17 0
 48793.5  -0.15265  0.35656 -0.539967  0.00018 0.00019 0.000000 1.59  0.011  0.000  0.000   20  17 0
 48794.5  -0.15107  0.35867 -0.541918  0.00021 0.00021 0.000000 1.37  0.000  0.000  0.000   23  17 0
 48795.5  -0.15069  0.36003 -0.543939  0.00019 0.00020 0.000000 1.93  0.023  0.000  0.000   24  17 0
 48796.5  -0.15002  0.36293 -0.545936  0.00017 0.00018 0.000000 1.61  0.099  0.000  0.000   24  17 0
 48797.5  -0.14923  0.36463 -0.547805  0.00020 0.00023 0.000000 1.90  0.062  0.000  0.000   23  17 0
 48798.5  -0.14700  0.36705 -0.549454  0.00026 0.00025 0.000000 1.40  0.121  0.000  0.000   21  17 0
 48799.5  -0.14700  0.37016 -0.551219  0.00027 0.00028 0.000000 1.34  0.146  0.000  0.000   21  17 0
 48800.5  -0.14457  0.37288 -0.552509  0.00024 0.00024 0.000000 1.34  0.085  0.000  0.000   22  17 0
 48801.5  -0.14404  0.37427 -0.553393  0.00027 0.00028 0.000000 1.18  0.161  0.000  0.000   26  17 0
 48802.5  -0.14297  0.37794 -0.554140  0.00024 0.00027 0.000000 1.40  0.158  0.000  0.000   22  17 0
 48803.5  -0.14154  0.38093 -0.555153  0.00020 0.00025 0.000000 1.89  0.119  0.000  0.000   21  17 0
 48804.5  -0.14111  0.38215  0.443530  0.00016 0.00017 0.000000 2.22  0.129  0.000  0.000   23  17 0
 48805.5  -0.13907  0.38531  0.441782  0.00018 0.00021 0.000000 1.98  0.083  0.000  0.000   22  17 0
 48806.5  -0.13790  0.38707  0.439604  0.00020 0.00023 0.000000 1.53  0.133  0.000  0.000   22  17 0
 48807.5  -0.13686  0.39027  0.437134  0.00021 0.00024 0.000000 1.76  0.096  0.000  0.000   23  16 0
 48808.5  -0.13477  0.39214  0.434606  0.00018 0.00020 0.000000 1.80  0.038  0.000  0.000   24  16 0
 48809.5  -0.13430  0.39393  0.432253  0.00015 0.00017 0.000000 1.30  0.135  0.000  0.000   26  16 0
 48810.5  -0.13189  0.39617  0.430247  0.00017 0.00018 0.000000 1.44  0.057  0.000  0.000   27  16 0
 48811.5  -0.13039  0.39882  0.428660  0.00014 0.00016 0.000000 1.52  0.095  0.000  0.000   27  17 0
 48812.5  -0.12982  0.39996  0.427483  0.00015 0.00018 0.000000 1.84  0.142  0.000  0.000   26  17 0
 48813.5  -0.12806  0.40230  0.427699  0.00021 0.00025 0.000000 2.91  0.277  0.000  0.000   26  16 0
 48814.5  -0.12640  0.40553  0.427271  0.00014 0.00016 0.000000 1.48  0.192  0.000  0.000   28  17 0
 48815.5  -0.12614  0.40898  0.426947  0.00015 0.00020 0.000000 1.57  0.185  0.000  0.000   27  17 0
 48816.5  -0.12504  0.41105  0.426598  0.00014 0.00016 0.000000 1.89  0.164  0.000  0.000   29  17 0
 48817.5  -0.12520  0.41152  0.426111  0.00017 0.00020 0.000000 1.81  0.162  0.000  0.000   28  17 0
 48818.5  -0.12414  0.41383  0.425416  0.00016 0.00017 0.000000 1.74  0.106  0.000  0.000   27  17 0
 48819.5  -0.12285  0.41555  0.424472  0.00017 0.00019 0.000000 1.88  0.113  0.000  0.000   25  17 0
 48820.5  -0.12000  0.41761  0.423296  0.00020 0.00020 0.000000 1.88  0.166  0.000  0.000   24  17 0
 48821.5  -0.11824  0.41878  0.421397  0.00027 0.00028 0.000000 1.96  0.159  0.000  0.000   23  17 0
 48822.5  -0.11542  0.42145  0.419817  0.00021 0.00020 0.000000 1.95  0.137  0.000  0.000   25  17 0
 48823.5  -0.11306  0.42399  0.418199  0.00024 0.00025 0.000000 2.10  0.073  0.000  0.000   24  17 0
 48824.5  -0.10958  0.42682  0.416635  0.00017 0.00019 0.000000 1.95  0.100  0.000  0.000   25  18 0
 48826.5  -0.10646  0.43135  0.414004  0.00013 0.00014 0.000000 1.89  0.062  0.000  0.000   29  18 0
 48827.5  -0.10441  0.43306  0.413023  0.00014 0.00014 0.000000 1.75  0.082  0.000  0.000   27  18 0
 48828.5  -0.10140  0.43504  0.411183  0.00016 0.00017 0.000000 1.73  0.019  0.000  0.000   25  18 0
 48829.5  -0.09985  0.43682  0.410301  0.00016 0.00017 0.000000 1.46  0.045  0.000  0.000   25  18 0
 48830.5  -0.09737  0.43913  0.409336  0.00013 0.00014 0.000000 2.02  0.014  0.000  0.000   26  18 0
 48831.5  -0.09565  0.44142  0.408090  0.00014 0.00015 0.000000 2.03  0.026  0.000  0.000   27  18 0
 48832.5  -0.09406  0.44288  0.406405  0.00016 0.00018 0.000000 2.70  0.119  0.000  0.000   26  18 0
 48833.5  -0.09254  0.44531  0.404186  0.00018 0.00016 0.000000 1.94  0.215  0.000  0.000   26  18 0
 48834.5  -0.08947  0.44698  0.401566  0.00012 0.00013 0.000000 2.10  0.074  0.000  0.000   27  18 0
 48835.5  -0.08915  0.44907  0.398750  0.00046 0.00051 0.000000 1.71  0.179  0.000  0.000   27  18 0
 48836.5  -0.08731  0.45118  0.396020  0.00039 0.00053 0.000000 1.49  0.066  0.000  0.000   27  10 0
 48837.5  -0.08407  0.45239  0.393620  0.00021 0.00025 0.000000 1.68 -0.011  0.000  0.000   29  18 0
 48838.5  -0.08178  0.45588  0.391677  0.00012 0.00012 0.000000 1.59  0.065  0.000  0.000   28  18 0
 48839.5  -0.08006  0.45774  0.390212  0.00012 0.00013 0.000000 1.80  0.114  0.000  0.000   29  18 0
 48840.5  -0.07784  0.45927  0.389148  0.00012 0.00012 0.000000 2.08  0.058  0.000  0.000   29  18 0
 48841.5  -0.07614  0.46140  0.388356  0.00013 0.00014 0.000000 2.04  0.061  0.000  0.000   27  18 0
 48842.5  -0.07490  0.46395  0.387691  0.00047 0.00046 0.000000 1.31  0.259  0.000  0.000   28  17 0
 48843.5  -0.07253  0.46654  0.386999  0.00036 0.00041 0.000000 1.40  0.247  0.000  0.000   26   8 0
 48844.5  -0.07071  0.46924  0.386177  0.00032 0.00027 0.000000 1.54  0.179  0.000  0.000   27  18 0
 48845.5  -0.06831  0.47233  0.385147  0.00017 0.00021 0.000000 1.75  0.172  0.000  0.000   27  18 0
 48846.5  -0.06668  0.47411  0.383853  0.00014 0.00014 0.000000 1.89  0.085  0.000  0.000   27  18 0
 48847.5  -0.06460  0.47653  0.382298  0.00013 0.00013 0.000000 2.09  0.059  0.000  0.000   28  18 0
 48848.5  -0.06236  0.47802  0.379500  0.00013 0.00013 0.000000 1.69  0.069  0.000  0.000   28  18 0
 48849.5  -0.05936  0.47947  0.377556  0.00032 0.00037 0.000000 1.22  0.237  0.000  0.000   28  13 0
 48850.5  -0.05897  0.48090  0.375550  0.00039 0.00042 0.000000 1.46  0.336  0.000  0.000   27   8 0
 48851.5  -0.05523  0.48289  0.373590  0.00020 0.00022 0.000000 2.33  0.028  0.000  0.000   28  18 0
 48852.5  -0.05191  0.48457  0.371746  0.00014 0.00014 0.000000 1.59  0.060  0.000  0.000   27  18 0
 48853.5  -0.04896  0.48645  0.370076  0.00013 0.00014 0.000000 1.82  0.017  0.000  0.000   26  18 0
 48854.5  -0.04626  0.48815  0.368154  0.00016 0.00018 0.000000 1.46  0.031  0.000  0.000   26  15 0
 48855.5  -0.04266  0.48952  0.366832  0.00015 0.00016 0.000000 1.74  0.012  0.000  0.000   26  18 0
 48856.5  -0.03980  0.48984  0.365638  0.00072 0.00065 0.000000 1.09  0.452  0.000  0.000   24   8 0
 48857.5  -0.03521  0.49058  0.364420  0.00033 0.00039 0.000000 1.80  0.168  0.000  0.000   25   8 0
 48858.5  -0.03489  0.49326  0.362988  0.00026 0.00027 0.000000 1.97  0.030  0.000  0.000   23  18 0
 48859.5  -0.03077  0.49355  0.361149  0.00014 0.00015 0.000000 2.01  0.013  0.000  0.000   25  18 0
 48860.5  -0.02731  0.49524  0.358770  0.00013 0.00013 0.000000 2.14  0.043  0.000  0.000   25  18 0
 48861.5  -0.02436  0.49692  0.355865  0.00012 0.00013 0.000000 2.06  0.057  0.000  0.000   24  18 0
 48862.5  -0.02111  0.49866  0.352588  0.00013 0.00013 0.000000 2.17  0.043  0.000  0.000   24  18 0
 48863.5  -0.01849  0.50018  0.338105  0.00012 0.00013 0.000000 2.65  0.048  0.000  0.000   24  18 0
 48864.5  -0.01598  0.50201  0.335804  0.00014 0.00015 0.000000 2.54  0.034  0.000  0.000   25  18 0
 48865.5  -0.01287  0.50382  0.333721  0.00013 0.00014 0.000000 2.33  0.064  0.000  0.000   24  18 0
 48866.5  -0.01087  0.50472  0.331844  0.00013 0.00013 0.000000 2.05  0.033  0.000  0.000   25  18 0
 48867.5  -0.00885  0.50438  0.330108  0.00012 0.00013 0.000000 1.86  0.039  0.000  0.000   25  18 0
 48868.5  -0.00634  0.50419  0.328431  0.00017 0.00020 0.000000 2.06 -0.015  0.000  0.000   23  18 0
 48869.5  -0.00406  0.50364  0.336537  0.00013 0.00014 0.000000 2.02  0.055  0.000  0.000   23  18 0
 48870.5  -0.00220  0.50326  0.335385  0.00017 0.00018 0.000000 1.80  0.062  0.000  0.000   24  18 0
 48871.5   0.00049  0.50501  0.334140  0.00016 0.00016 0.000000 2.24  0.055  0.000  0.000   24  18 0
 48872.5   0.00297  0.50632  0.332702  0.00013 0.00013 0.000000 1.91  0.033  0.000  0.000   25  18 0
 48873.5   0.00528  0.50675  0.331004  0.00013 0.00014 0.000000 1.89  0.021  0.000  0.000   25  18 0
 48874.5   0.00791  0.50757  0.329028  0.00013 0.00014 0.000000 1.82  0.152  0.000  0.000   25  18 0
 48875.5   0.01017  0.50731  0.326801  0.00014 0.00015 0.000000 2.44  0.173  0.000  0.000   25  18 0
 48876.5   0.01201  0.50808  0.324378  0.00019 0.00017 0.000000 1.75  0.153  0.000  0.000   23  18 0
 48877.5   0.01191  0.50898  0.324013  0.00055 0.00053 0.000000 1.62  0.402  0.000  0.000   23  18 0
 48878.5   0.01692  0.50772  0.310577  0.00070 0.00066 0.000000 1.05  0.381  0.000  0.000   24   7 0
 48879.5   0.01704  0.50727  0.308702  0.00047 0.00052 0.000000 1.47  0.302  0.000  0.000   23  18 0
 48880.5   0.02093  0.50943  0.306765  0.00030 0.00024 0.000000 1.33  0.241  0.000  0.000   22  18 0
 48881.5   0.02418  0.50986  0.315922  0.00024 0.00021 0.000000 1.88  0.170  0.000  0.000   23  18 0
 48882.5   0.02751  0.50973  0.314365  0.00021 0.00019 0.000000 2.27  0.054  0.000  0.000   22  18 0
 48883.5   0.02913  0.51001  0.312953  0.00025 0.00021 0.000000 2.14  0.216  0.000  0.000   23  18 0
 48884.5   0.03140  0.50945  0.311800  0.00078 0.00067 0.000000 1.17  0.402  0.000  0.000   22  18 0
 48886.5   0.03533  0.50699  0.308697  0.00070 0.00075 0.000000 1.59  0.363  0.000  0.000   21  18 0
 48887.5   0.03750  0.50860  0.306537  0.00025 0.00021 0.000000 1.85  0.140  0.000  0.000   24  18 0
 48888.5   0.03923  0.50859  0.303852  0.00023 0.00019 0.000000 2.53  0.284  0.000  0.000   24  18 0
 48889.5   0.04154  0.50907  0.300712  0.00022 0.00020 0.000000 2.84  0.065  0.000  0.000   23  18 0
 48890.5   0.04347  0.50960  0.297304  0.00025 0.00020 0.000000 2.46  0.094  0.000  0.000   25  18 0
 48891.5   0.04807  0.50908  0.294636  0.00079 0.00068 0.000000 2.00  0.454  0.000  0.000   25   7 0
 48892.5   0.05008  0.50938  0.291634  0.00097 0.00078 0.000000 1.36  0.525  0.000  0.000   24   7 0
 48893.5   0.05028  0.50874  0.289091  0.00033 0.00034 0.000000 1.72  0.139  0.000  0.000   24  19 0
 48894.5   0.05329  0.50739  0.287040  0.00020 0.00016 0.000000 2.58  0.149  0.000  0.000   26  19 0
 48895.5   0.05625  0.50663  0.285410  0.00017 0.00015 0.000000 2.74  0.088  0.000  0.000   26  19 0
 48896.5   0.05831  0.50606  0.284047  0.00018 0.00016 0.000000 2.55  0.056  0.000  0.000   26  19 0
 48897.5   0.06044  0.50586  0.282777  0.00016 0.00014 0.000000 3.09  0.089  0.000  0.000   26  19 0
 48898.5   0.06415  0.50550  0.281468  0.00081 0.00068 0.000000 1.39  0.420  0.000  0.000   26   7 0
 48899.5   0.06470  0.50580  0.280011  0.00052 0.00041 0.000000 1.77  0.307  0.000  0.000   25  15 0
 48900.5   0.06743  0.50455  0.278327  0.00037 0.00030 0.000000 2.57  0.373  0.000  0.000   25  19 0
 48901.5   0.07097  0.50468  0.275482  0.00024 0.00020 0.000000 2.19  0.207  0.000  0.000   26  19 0
 48902.5   0.07506  0.50531  0.273229  0.00018 0.00017 0.000000 2.64  0.130  0.000  0.000   26  19 0
 48903.5   0.07803  0.50464  0.270803  0.00019 0.00016 0.000000 2.73  0.151  0.000  0.000   26  19 0
 48904.5   0.08082  0.50379  0.268274  0.00018 0.00016 0.000000 2.64  0.167  0.000  0.000   26  19 0
 48905.5   0.08379  0.50361  0.265735  0.00052 0.00048 0.000000 1.80  0.061  0.000  0.000   26  18 0
 48906.5   0.08392  0.50180  0.263291  0.00064 0.00058 0.000000 1.28  0.220  0.000  0.000   25   7 0
 48907.5   0.08743  0.50169  0.261022  0.00033 0.00030 0.000000 1.76  0.047  0.000  0.000   26  19 0
 48908.5   0.09098  0.49991  0.258988  0.00022 0.00021 0.000000 1.71  0.234  0.000  0.000   25  17 0
 48909.5   0.09372  0.49925  0.257201  0.00018 0.00016 0.000000 2.79  0.162  0.000  0.000   26  19 0
 48910.5   0.09665  0.49928  0.255606  0.00019 0.00017 0.000000 2.08  0.177  0.000  0.000   26  18 0
 48911.5   0.09908  0.49859  0.252858  0.00019 0.00018 0.000000 2.13  0.173  0.000  0.000   26  18 0
 48912.5   0.10166  0.49667  0.251084  0.00075 0.00067 0.000000 1.12  0.136  0.000  0.000   25   7 0
 48913.5   0.10271  0.49664  0.249083  0.00138 0.00095 0.000000 1.39  0.182  0.000  0.000   23   7 0
 48914.5   0.10319  0.49736  0.246710  0.00034 0.00032 0.000000 1.68  0.022  0.000  0.000   24  19 0
 48915.5   0.10590  0.49617  0.243896  0.00022 0.00020 0.000000 2.53  0.106  0.000  0.000   24  19 0
 48916.5   0.10814  0.49422  0.240664  0.00021 0.00021 0.000000 2.97  0.132  0.000  0.000   24  19 0
 48917.5   0.11061  0.49288  0.236750  0.00019 0.00018 0.000000 3.12  0.150  0.000  0.000   25  19 0
 48918.5   0.11414  0.49257  0.232975  0.00018 0.00018 0.000000 2.61  0.018  0.000  0.000   27  19 0

NOTES: UT1 not estimated.  Value given is apriori used in analysis.  The rms is the square root of chi**2
per degree of freedom in our solution.  It nominally should be 1.0.  st and sv are numbers of stations
and satellites in solution.

==============================================================================
From:    Ch. Reigber
Subject: GFZ analysis report
         -------------------

Report for GPS Week 664 (Days 271-277) from GFZ
===============================================

This report is generated by the GeoForschungsZentrum Potsdam (GFZ) 
on a weekly basis for the International GPS Geodynamics Service (IGS). 

PRODUCT SUMMARY 

   GFZ0664*.EPH:  GPS ephemerides for GPS Week 664 (SP3 format, pos. and vel.)
                  * represents: 2 for Tuesday, .... , 5 for Friday
   GFZ06647.ERP:  Earth rotation parameter (UT1 corrections are not included)
   GFZ06647.CLK:  ST and SV clock parameters of each observation epoch (the
                  maser-based clock at Fairbanks is taken as reference clock)
   GFZ06647.SUM:  Summary file for reporting week 

The above specified products are available at CDDIS. The ERP results are 
submitted additional to IERS Central Bureau and IERS Sub Bureau for Rapid
Service and Predictions.

*********************************************************************************
Note: Due to AS all product files do not include the days 271, 272
      and 277
*********************************************************************************

CORE STATION SUMMARY

The Core Station data used in the solutions is given below.  

                                      Day of Week 664
                                     T  W  T  F
                                     U  E  H  R
        Site                         E  D  U  I
Name            Code      
-------------------------------------------------
Algonquin       ALGO                 X  X  X  X
Fairbanks       FAIR                 X  X  X  X
Goldstone       DS10                 X  X  X  X
Hartebeesthoek  HART                 X  X  X  X
Kokee Park      KOKR                 -  -  -  -
Mc Murdo        MCMU                 X  X  X  X
Ny-Alesund      NALL                 X  X  X  X
Pamatai         PAMA                 X  X  X  X
Santiago        SANT                 X  X  X  -
Tai Shi         TAIW                 X  X  X  X	
Tidbinbilla     TIDB                 -  X  X  X 
Tromsoe         TROM                 X  X  X  X 
Usuda           USUD                 X  X  X  -
Wettzell        WTZ1                 X  X  X  X
Yellowknife     YELL                 X  X  X  X
Yarragadee      YAR1                 X  X  X  X
-------------------------------------------------

SOLUTION CHARACTERISTICS

1. Analysis Center: GFZ/DLR
2. Analysing Team: D. Angermann, R. Galas, Ch. Reigber, S.Y. Zhu
3. Solution Identifier: EPH(GFZ)92G01-DDD
                        ERP(GFZ)92G02-DDD
                        CLK(GFZ)92G01-DDD (only relative)
4. Software used: GEPARD4.0
5. Defintion of Terrestrial Reference Frame
   Origin: Nominally ITRF-90
   Orientation: Nominally ITRF-90
   Reference Epoch: 1992.352 (MJD 48750)
   Fixed set of stations: Y. Bock Solution (IGS Message No.101)
   ALGO, YELL, FAIR, KOKR, TROM, WTZ1, YAR1, PAMA,
   MCMU, TAIW, DS10, SANT, HART, NALL, 
6. Data used:
   - undifferenced pseudo ranges and carrier phases
   - 1-day arc solutions 
7. Adjusted parameters:
   - State vector of all GPS satellites
   - Daily polar motion
   - Coordinate corrections for non-fixed stations
   - Troposheric zenith path delay 
   - Solar radiation scale and y-bias 
   - Ambiguities
   - ST and SV clock parameters of each observation epoch (the 
     maser-based clock at Fairbanks is taken as reference clock)

SOLUTION STATISTICS

                         Arc No.      2     3     4     5    
   ------------------------------------------------------
   Observation Interval [sec]       360   360   360   360
   Number of observations         16859 22896 23502 24233 
   RMS of carrier phases [cm]       0.6   0.7   0.8   0.9 
   RMS of code measurements [cm]   50.1  56.2  57.3  58.0 
   ------------------------------------------------------

-  GFZ06647.ERP
   ============

   Solution identifier for ERP-Results:
   * GPS week 650-653:   ERP(GFZ)92G01-DDD 
   * since GPS week 654: ERP(GFZ)92G02-DDD
   Please notice, that these two solutions are related to
   different reference frames.
    
   MJD     x    sigmax   y    sigmay

 48894.5 0.0570 0.0005 0.5064 0.0005
 48895.5 0.0584 0.0003 0.5070 0.0003
 48896.5 0.0601 0.0003 0.5067 0.0003
 48897.5 0.0631 0.0003 0.5068 0.0003

-  GFZ06647.CLK
   ============
   
   The clock parameter file is avaibable at CDDIS.
   The format of this file is described in the
   IGS Message No. 55.

==============================================================================
From:    Ch. Reigber
Subject: GFZ analysis report
         -------------------

Report for GPS Week 665 (Days 278-284) from GFZ
===============================================

This report is generated by the GeoForschungsZentrum Potsdam (GFZ) 
on a weekly basis for the International GPS Geodynamics Service (IGS). 

PRODUCT SUMMARY 

   GFZ0665*.EPH:  GPS ephemerides for GPS Week 665 (SP3 format, pos. and vel.)
                  * represents: 2 for Tuesday, .... , 5 for Friday
   GFZ06657.ERP:  Earth rotation parameter (UT1 corrections are not included)
   GFZ06657.CLK:  ST and SV clock parameters of each observation epoch (the
                  maser-based clock at Fairbanks is taken as reference clock)
   GFZ06657.SUM:  Summary file for reporting week 

The above specified products are available at CDDIS. The ERP results are 
submitted additional to IERS Central Bureau and IERS Sub Bureau for Rapid
Service and Predictions.

*********************************************************************************
Note: Due to AS all product files do not include the days 278, 279
      and 284
*********************************************************************************

CORE STATION SUMMARY

The Core Station data used in the solutions is given below.  

                                      Day of Week 665
                                     T  W  T  F
                                     U  E  H  R
        Site                         E  D  U  I
Name            Code      
-------------------------------------------------
Algonquin       ALGO                 X  X  X  X
Fairbanks       FAIR                 X  X  X  X
Goldstone       DS10                 X  X  X  X
Hartebeesthoek  HART                 X  X  X  X
Kokee Park      KOKR                 -  -  -  -
Mc Murdo        MCMU                 X  X  X  X
Ny-Alesund      NALL                 X  X  X  X
Pamatai         PAMA                 X  X  X  X
Santiago        SANT                 X  X  X  X
Tai Shi         TAIW                 X  X  X  X	
Tidbinbilla     TIDB                 X  X  X  X 
Tromsoe         TROM                 X  X  X  X 
Usuda           USUD                 -  X  X  X
Wettzell        WTZ1                 X  X  X  X
Yellowknife     YELL                 X  X  X  X
Yarragadee      YAR1                 X  X  X  X
-------------------------------------------------

SOLUTION CHARACTERISTICS

1. Analysis Center: GFZ/DLR
2. Analysing Team: D. Angermann, R. Galas, Ch. Reigber, S.Y. Zhu
3. Solution Identifier: EPH(GFZ)92G01-DDD
                        ERP(GFZ)92G02-DDD
                        CLK(GFZ)92G01-DDD (only relative)
4. Software used: GEPARD4.0
5. Defintion of Terrestrial Reference Frame
   Origin: Nominally ITRF-90
   Orientation: Nominally ITRF-90
   Reference Epoch: 1992.352 (MJD 48750)
   Fixed set of stations: Y. Bock Solution (IGS Message No.101)
   ALGO, YELL, FAIR, KOKR, TROM, WTZ1, YAR1, PAMA,
   MCMU, TAIW, DS10, SANT, HART, NALL, 
6. Data used:
   - undifferenced pseudo ranges and carrier phases
   - 1-day arc solutions 
7. Adjusted parameters:
   - State vector of all GPS satellites
   - Daily polar motion
   - Coordinate corrections for non-fixed stations
   - Troposheric zenith path delay 
   - Solar radiation scale and y-bias 
   - Ambiguities
   - ST and SV clock parameters of each observation epoch (the 
     maser-based clock at Fairbanks is taken as reference clock)

SOLUTION STATISTICS

                         Arc No.      2     3     4     5    
   ------------------------------------------------------
   Observation Interval [sec]       360   360   360   360
   Number of observations         17403 22747 23355 21158 
   RMS of carrier phases [cm]       0.4   0.5   0.5   0.5 
   RMS of code measurements [cm]   46.4  45.8  47.8  48.4 
   ------------------------------------------------------

-  GFZ06657.ERP
   ============

   Solution identifier for ERP-Results:
   * GPS week 650-653:   ERP(GFZ)92G01-DDD 
   * since GPS week 654: ERP(GFZ)92G02-DDD
   Please notice, that these two solutions are related to
   different reference frames.
    
   MJD     x    sigmax   y    sigmay

 48901.5 0.0745 0.0004 0.5046 0.0005
 48902.5 0.0769 0.0002 0.5055 0.0002
 48903.5 0.0794 0.0003 0.5050 0.0003
 48904.5 0.0829 0.0003 0.5047 0.0003

-  GFZ06657.CLK
   ============
   
   The clock parameter file is avaibable at CDDIS.
   The format of this file is described in the
   IGS Message No. 55.