Subject: [IGSMAIL-86] GFZ analysis report
From: Ch. Reigber
Date: 4 SEP 1992 16:48:55

***********************************************************************
IGS Electronic Mail        4-SEP-1992 16:48:55       Message Number 86
***********************************************************************
 
==============================================================================
                   THIS FILE CONTAINS 4 MESSAGES
==============================================================================

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

Report for GPS Week 656 (Days 215-221) from GFZ
===============================================

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

PRODUCT SUMMARY 

   GFZ0656*.EPH:  GPS ephemerides for GPS Week 656 (SP3 format, pos. and vel.)
                  * represents: 0 for Sunday, .... , 6 for Saturday
   GFZ06567.ERP:  Earth rotation parameter (UT1 corrections are not included)
   GFZ06567.CLK:  ST and SV clock parameters of each observation epoch (the
                  maser-based clock at Fairbanks is taken as reference clock)
   GFZ06567.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.

CORE STATION SUMMARY

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

                                      Day of Week 656
                                    S  M  T  W  T  F  S
                                    U  O  U  E  H  R  A
        Site                        N  N  E  D  U  I  T
Name            Code      
---------------------------------------------------------
Algonquin       ALGO                X  X  X  X  X  X  X
Fairbanks       FAIR                X  X  X  X  X  X  X
Goldstone       DS10                X  -  X  X  X  X  X
Hartebeesthoek  HART                X  X  X  X  X  X  X
Kokee Park      KOKR                X  X  X  X  X  X  X
Mc Murdo        MCMU                X  X  X  X  X  X  X
Ny-Alesund      NALL                X  X  X  X  X  X  X
Pamatai         PAMA                X  X  X  X  X  X  X
Santiago        SANT                X  X  X  X  X  X  X
Tai Shi         TAIW                -  X  X  X  X  X  X	
Tidbinbilla     TIDB                X  X  X  X  X  X  X
Tromsoe         TROM                X  X  X  X  X  X  X 
Usuda           USUD                X  X  X  X  X  X  X
Wettzell        WTZ1                X  X  X  X  X  X  X
Yellowknife     YELL                X  X  X  X  X  X  X
Yarragadee      YAR1                X  X  X  X  X  X  X
---------------------------------------------------------

SOLUTION CHARACTERISTICS

1. Analysis Center: GFZ/DLR
2. Analysing Team: D. Angermann, R. Galas, G. Dick,
                   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.56)
   ALGO, YELL, FAIR, KOKR, TROM, WTZ1, YAR1, USUD, NALL, PAMA,
   MCMU, TAIW, DS10, SANT, HART
6. Data used:
   - undifferenced pseudo ranges and carrier phases
   - 2-day arc solutions with one day overlap
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.      0     1     2     3     4     5     6    
   ------------------------------------------------------------------------
   Number of observations         12504 13036 38956 40648 40467 35321 12593 
   RMS of carrier phases [cm]       4.7   4.3   2.2   2.3   3.1   3.6   4.2
   RMS of code measurements [cm]   40.2  42.4  50.3  48.2  45.9  45.1  39.5
   ------------------------------------------------------------------------

INFORMATIONS TO PRODUCT GENERATION

  The calculation of the 7-day ephemerides file is described below.

            Day of GPS Week 656        [Day 0=Sunday; Day 6=Saturday]
  Arc No.   0   1   2   3   4   5   6    
       0     XXXX----
       1         XXXX----
       2             XXXX----
       3                 XXXX----
       4                     XXXX----
       5                         XXXX----
       6                             XXXX----

   XXXX : The first day of the 2-day arc is used for ephemeris
          dissemination
   ---- : The second day is used for quality control by overlap

-  GFZ0656*.EPH (Seven 1-day segments)
                * represents: 0 for Sunday, .... , 6 for Saturday
   ============

   In the table below the overlap rms differences [m] in radial,
   cross- and along-track component are presented.

 prn            217    218    219    220 |  Mean
================================================
   2 radial   0.243  0.288  0.429  0.215 | 0.294
   2 cross    0.249  0.350  0.719  0.751 | 0.517
   2 along    0.540  0.576  0.631  0.768 | 0.629
------------------------------------------------
   3 radial   0.152  0.160  0.150  0.180 | 0.160
   3 cross    0.457  0.374  0.303  0.283 | 0.354
   3 along    0.369  0.385  0.419  0.304 | 0.369
------------------------------------------------
  11 radial   0.167  0.036  0.256  0.149 | 0.152
  11 cross    0.391  0.103  0.359  0.208 | 0.265
  11 along    0.485  0.300  0.311  0.533 | 0.407
------------------------------------------------
  12 radial   0.241  0.197  0.161  0.184 | 0.196
  12 cross    0.363  0.243  0.346  0.127 | 0.270
  12 along    0.492  0.361  0.477  0.425 | 0.439
------------------------------------------------
  13 radial   0.099  0.122  0.169  0.114 | 0.126
  13 cross    0.440  0.166  0.303  0.339 | 0.312
  13 along    0.248  0.282  0.461  0.398 | 0.347
------------------------------------------------
  14 radial   0.297  0.180  0.271  0.353 | 0.275
  14 cross    0.315  0.207  0.280  0.219 | 0.255
  14 along    0.727  0.402  0.543  0.720 | 0.598
------------------------------------------------
  15 radial   0.203  0.541  0.229  0.156 | 0.282
  15 cross    0.578  0.513  0.504  0.255 | 0.463
  15 along    0.955  1.059  0.722  0.584 | 0.830
------------------------------------------------
  16 radial   0.241  0.265  0.229  0.106 | 0.210
  16 cross    0.194  0.196  0.364  0.748 | 0.375
  16 along    0.446  0.468  0.452  0.408 | 0.444
------------------------------------------------
  17 radial   0.279  0.355  0.303  0.254 | 0.298
  17 cross    0.277  0.327  0.282  0.354 | 0.310
  17 along    0.658  0.694  0.736  0.518 | 0.651
------------------------------------------------
  18 radial   0.152  0.183  0.163  0.284 | 0.195
  18 cross    0.241  0.265  0.348  0.357 | 0.303
  18 along    0.425  0.593  0.417  0.586 | 0.505
------------------------------------------------
  19 radial   0.223  0.324  0.260  0.345 | 0.288
  19 cross    0.352  0.280  0.275  0.422 | 0.332
  19 along    0.518  0.737  0.599  0.706 | 0.640
------------------------------------------------
  20 radial   0.266  0.344  0.412  0.310 | 0.333
  20 cross    0.179  0.211  0.285  0.230 | 0.226
  20 along    0.444  0.682  0.774  0.527 | 0.607
------------------------------------------------
  21 radial   0.123  0.309  0.254  0.297 | 0.246
  21 cross    0.388  0.283  0.336  0.394 | 0.350
  21 along    0.333  0.477  0.645  0.713 | 0.542
------------------------------------------------
  23 radial   0.051  0.160  0.088  0.223 | 0.131
  23 cross    0.177  0.389  0.528  0.339 | 0.358
  23 along    0.251  0.481  0.457  0.612 | 0.450
------------------------------------------------
  24 radial   0.205  0.368  0.308  0.151 | 0.258
  24 cross    0.209  0.210  0.291  0.182 | 0.223
  24 along    0.485  0.563  0.574  0.416 | 0.510
------------------------------------------------
  25 radial   0.147  0.309  0.375  0.156 | 0.247
  25 cross    0.272  0.256  0.325  0.235 | 0.272
  25 along    0.499  0.591  0.635  0.296 | 0.505
------------------------------------------------
  26 radial   0.247  0.237  0.252  0.277 | 0.253
  26 cross    0.266  0.257  0.209  0.750 | 0.370
  26 along    0.533  0.462  0.584  1.070 | 0.662
------------------------------------------------
  28 radial   0.148  0.263  0.265  0.067 | 0.186
  28 cross    0.470  0.304  0.405  0.837 | 0.504
  28 along    0.546  0.539  0.399  0.413 | 0.474
================================================

  Note: for the days 215, 216 and 221 no overlap 
        differences have been calculated due to AS

-  GFZ06567.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

 48836.5 -.0851 0.0010 0.4514 0.0010
 48837.5 -.0843 0.0010 0.4553 0.0010
 48838.5 -.0808 0.0006 0.4568 0.0007
 48839.5 -.0774 0.0003 0.4581 0.0002
 48840.5 -.0755 0.0003 0.4598 0.0002
 48841.5 -.0746 0.0005 0.4620 0.0004
 48842.5 -.0738 0.0008 0.4658 0.0008

-  GFZ06567.CLK
   ============
   
   The clock parameter file is avaibable at CDDIS.
   The format of this file is described in the
   IGS Message No. 55.

==============================================================================

From:    Carey Noll
Subject: CDDIS data holdings IGS Week 11/ GPS Week 956
         ---------------------------------------------

              Current IGS GPS Data Holdings (as of 03-Sep-92 07:09)             
      IGS Week 11/GPS Week 659 (August 23 thru 29, 1992; Days 236 thru 242)     
                                                                                
                                     2    2    2    2    2    2    2            
                    Mon.             3    3    3    3    4    4    4    No.     
    Site Name       Name  Receiver   6    7    8    9    0    1    2   Sites    
------------------  ----  --------  ---  ---  ---  ---  ---  ---  ---  -----    
Albert Head         ALBH  Rogue      X    X    X    X    X    X    X       7    
Algonquin           ALGO  Rogue      X    X    X    X    X    X    X       7    
Fairbanks           FAIR  Rogue      X    X    X    X    X    X    X       7    
Goldstone           GOLD  Rogue      X    X    X    X    X    X    X       7    
Graz                GRAA  Ashtech    X    X    X    X    X    X    X       7    
Graz                GRAZ  Rogue      X    X    X    X    X    X    X       7    
Hartebeesthoek      HART  Rogue      X    X    X    X    X    X    X       7    
Herstmonceux        HERS  Rogue      X    X    X    X    X    X    X       7    
Hobart              HOBA  Minimac    X    X    X    X    X    X    X       7    
Kokee Park          KOKB  Rogue      X    X    X    X    X    X    X       7    
Kootwijk            KOSG  Rogue      X    X    X    X    X    X    X       7    
Madrid              MADR  Rogue      X    X    X    X    X    X    X       7    
Maspalomas          MASP  Rogue      X    X    X    X    X    X    X       7    
Matera              MATE  Rogue      X    X    X    X    X    X    X       7    
McMurdo             MCMU  Rogue      X    X    X    X    X    X    X       7    
Metsahovi           METS  Rogue      X    X    X    X    X    X    X       7    
Mojave              MOJ1  Minimac    X    X    X    X    X    X    X       7    
Ny Alesund          NYAL  Rogue      -    -    X    X    X    X    X       5    
Onsala              ONSA  Rogue      X    X    X    X    X    X    X       7    
Pamate              PAMA  Rogue      X    X    X    X    X    X    X       7    
Pasadena            JPLM  Rogue      X    X    X    X    X    X    X       7    
Penticton           DRAO  Rogue      X    X    X    X    X    X    X       7    
Richmond            RCM2  Rogue      X    -    -    -    -    -    -       1
Saint John's        STJO  Rogue      X    X    X    X    X    X    X       7    
Santiago            SANT  Rogue      X    X    X    X    X    X    X       7    
Taiwan              TAIW  Rogue      X    X    X    X    X    X    X       7    
Tidbinbilla         TIDB  Rogue      X    X    X    X    X    X    X       7    
Townsville          TOWN  Trimble    X    X    X    X    X    X    X       7    
Tromso              TROM  Rogue      X    X    X    X    X    X    X       7    
Tsukuba             TSUK  Minimac    -    -    -    -    X    X    X       3    
Usuda               USUD  Rogue      X    X    X    X    X    X    X       7    
Wellington          WELL  Trimble    X    X    X    X    X    X    X       7    
Westford            WES1  Minimac    X    X    X    X    X    X    X       7    
Wettzell            WETT  Rogue      -    X    X    -    X    X    X       5    
Yaragadee           YAR1  Rogue      X    X    X    X    X    X    X       7    
Yellowknife         YELL  Rogue      X    X    X    X    X    X    X       7    
Zimmerwald          ZIMA  Ashtech    -    -    -    X    X    X    X       4    
Zimmerwald          ZIMM  Trimble    X    X    X    -    -    -    -       3    
------------------  ----  --------  ---  ---  ---  ---  ---  ---  ---  -----    
Totals:               38  stations   34   34   35   34   36   36   36    245    
                                                                                
Notes:  CDDIS disk archive status:  

           GPS1:[GPSDATA] directory contains days 243 and on
           GPS2:[GPSDATA] directory contains days 224 thru 242
           GPS3:[PRODUCTS] directory contains IGS products from GPS week 0649
           GPS3:[IGSMAIL] directory contains IGS MAIL messages and index

        ORROral data from days 203 thru 221 available from CDDIS.

==============================================================================

From:     Dave Starr
Subject:  Satellite #14

The report on the demise of satellite 14 may been premature. Another source
has indicated that the primary clock failed and that they were able to start
the backup clock.

Dave Starr
JPL GPS Network Operations.

==============================================================================

From:    Loic Daniel
Subject: IGN GPS Holdings
         ----------------

                     IGN DATA CENTER WEEKLY STATUS
                           CORE NETWORK DATA
                    (as of 28-AUG-1992 10:56:31.92)

        GPS WEEK #658    16/8/1992 to 22/8/1992   days 229-235

                                           2   2   2   2   2   2   2
                                           2   3   3   3   3   3   3
Site name            Acr. Receiver         9   0   1   2   3   4   5
-------------------- ---- --------------- --- --- --- --- --- --- ---
ALBERT HEAD          ALBH ROGUE            X   X   X   X   X   X   X
ALGONQUIN            ALGO ROGUE            X   X   X   X   X   X   X
CANBERRA             CANB ROGUE            X   X   X   X   X   X   X
FAIRBANKS            FAIR ROGUE            X   X   X   X   X   X   X
GOLDSTONE            GOLD ROGUE            X   X   X   X   X   -   X
GRAZ                 GRAA ASHTECH          -   X   X   X   X   X   X
GRAZ                 GRAZ ROGUE            X   X   X   X   X   X   X
HARTBEESTHOEK        HART ROGUE            X   X   X   X   X   X   X
HERSTMONCEUX         HERS ROGUE            -   X   X   X   X   X   X
HOBART               HOBA MINIMAC 2816     X   X   X   X   X   X   X
KOKEE PARK           KOKB ROGUE            X   X   X   X   X   X   X
KOOTWIJK             KOSG ROGUE            X   X   X   X   X   X   X
KOUROU               KOUR MINIROGUE        X   X   X   -   -   -   -
MADRID-ROBLEDO       MADR ROGUE            X   X   X   X   X   X   X
MASPALOMAS           MASP ROGUE            X   X   X   X   X   X   X
MATERA               MATE ROGUE            X   X   X   X   X   X   X
MC MURDO             MCMU ROGUE            X   X   X   X   X   X   X
METSAHOVI            METS ROGUE            X   X   X   X   X   X   X
MOJAVE               MOJ1 MINIMAC 2816     X   X   X   X   X   X   X
NY-ALESUND           NYAL ROGUE            X   X   X   X   X   X   X
ONSALA-RAO           ONSA ROGUE            X   X   X   X   X   X   X
PAMATAI              PAMA ROGUE            X   X   X   X   X   X   X
PASADENA             JPLM ROGUE            X   X   X   X   X   X   X
PENTICTON            DRAO ROGUE            X   X   X   X   X   X   X
PINYON FLATS         PIN1 ROGUE            X   X   X   X   -   -   -
RICHMOND (BIS)       RCM2 ROGUE            X   X   X   -   -   X   X
SAINT JOHN'S         STJO ROGUE            X   X   X   X   X   X   X
SANTIAGO             SANT ROGUE            -   X   X   X   X   X   X
TAIPEI               TAIW MINIROGUE        X   X   X   X   X   X   X
TOWNSVILLE           TOWN TRIMBLE SST      X   X   X   X   X   X   X
TROMSOE              TROM ROGUE            X   X   X   X   X   X   X
TSUKUBA              TSUK MINIMAC 2816     X   X   X   -   -   -   -
USUDA                USUD ROGUE            X   X   X   X   X   X   X
WELLINGTON           WELL TRIMBLE SST      X   X   X   X   X   X   X
WESTFORD             WES1 MINIMAC 2816     X   X   X   X   X   X   X
WETTZELL             WETT ROGUE            X   X   X   X   X   X   -
YARRAGADEE           YAR1 ROGUE            X   X   X   X   X   X   X
YELLOWKNIFE          YELL MINIROGUE        X   X   X   X   X   X   X
ZIMMERWALD           ZIMA ASHTECH          X   X   X   X   -   -   -
ZIMMERWALD           ZIMM TRIMBLE SST      X   X   X   X   X   X   X
--------------------
                  40

                     IGN DATA CENTER WEEKLY STATUS
                             PRODUCT FILES
                    (as of 28-AUG-1992 11:03:11.30)

         GPS WEEK #656    2/8/1992 to 8/8/1992   days 215-221

                              2    2    2    2    2    2    2
                              1    1    1    1    1    2    2
Center           Type         5    6    7    8    9    0    1
---------------  ----------  ---  ---  ---  ---  ---  ---  ---
COD              EPH          X    X    X    X    X    X    -
                 ERP          X    X    X    X    X    X    X

ESA              EPH          X    X    X    X    X    X    X
                 ERP          X    X    X    X    X    X    X
                 SUM          X    X    X    X    X    X    X

SIO              EPH          X    X    -    -    -    -    -

UTX              EPH          X    X    X    X    X    X    X
                 ERP          X    X    X    X    X    X    X
                 SUM          X    X    X    X    X    X    X

                     IGN DATA CENTER WEEKLY STATUS
                             PRODUCT FILES
                    (as of  3-SEP-1992 15:31:36.56)

         GPS WEEK #657    9/8/1992 to 15/8/1992   days 222-228

                              2    2    2    2    2    2    2
                              2    2    2    2    2    2    2
Center           Type         2    3    4    5    6    7    8
---------------  ----------  ---  ---  ---  ---  ---  ---  ---
COD              EPH          X    X    X    X    X    X    -
                 ERP          X    X    X    X    X    X    X

ESA              EPH          X    X    X    X    X    X    X
                 ERP          X    X    X    X    X    X    X
                 SUM          X    X    X    X    X    X    X

JPL              ERP          X    X    X    X    X    X    X
                 SP1          X    X    X    X    X    X    X
                 SP3          X    X    X    X    X    X    X
                 SUM          X    X    X    X    X    X    X

                     IGN DATA CENTER WEEKLY STATUS
                             PRODUCT FILES
                    (as of  3-SEP-1992 15:31:17.24)

        GPS WEEK #658    16/8/1992 to 22/8/1992   days 229-235

                              2    2    2    2    2    2    2
                              2    3    3    3    3    3    3
Center           Type         9    0    1    2    3    4    5
---------------  ----------  ---  ---  ---  ---  ---  ---  ---
COD              EPH          X    X    X    X    X    X    -
                 ERP          X    X    X    X    X    X    X

ESA              EPH          X    X    X    X    X    X    X
                 ERP          X    X    X    X    X    X    X
                 SUM          X    X    X    X    X    X    X