Subject: [IGSMAIL-78] Current status of IGN
From: L. Daniel (IGN)
Date: 24 AUG 1992 19:10:19

***********************************************************************
IGS Electronic Mail       24-AUG-1992 19:10:19       Message Number 78
***********************************************************************
 
==============================================================================
                   THIS FILE CONTAINS 5 MESSAGES
==============================================================================

From:    L. Daniel (IGN)
Subject: Current status of IGN
         ---------------------

 Here are some news about the IGN data center (at last I should say). 

  Sorry for not showing ourselves since the beginning of the campaign, but we had a 
lot of trouble with our internet connection, it is really effective only since the 
beginning of august. It seems that the internet administration slows down 
dramatically during the summer, on the european side as well as on the US side so 
... It took indeed a very long time to get our connection . 

  We got the european connection 2 weeks before the US connection, and began 
retrieval and archiving of european data around mid-july, we operate on the whole 
core network data set since the beginning of august.

  We get and store on-line the observation files of the core network and the 
products files generated by the analysis centers. We intend to store all the 
products available from all the analysis centers during this campaign. The IGS data 
at IGN is available by ftp, just send me a mail if you need an account to use our 
server. 

 The ftp server logs you directly into the IGS$CORE: directory (operating system is 
VMS). The observation data is stored by day into directories [.DDD] DDD being the 
day of the year. In each day directory you find a 0STATDDD file wich summarizes the 
content of the directory.

 The organisation is the same for the products files. The root is IGS$CALC:, the 
data is stored by week into [.WWWW] directories, WWWW being the GPS week number.

 The entire set of observation and product files of august and september will be 
available on-line. The data is archived on optical disks and DAT. 

 We generate a weekly report of observations and products holded at IGN, you will 
find the report for observation files of GPS week # 657 in this mail as well as the 
reports for the products files of weeks # 649 to 656. The next reports will be sent 
to the igs mailbox, you will get the report for one week the week after. we have to 
take into account that some stations send their data 5 or 6 days late. 

 The products files are available from one to two weeks after the observations, 
depending on the analysis centers. We will broadcast our product reports following 
the pace of the analysis centers. 

                     IGN DATA CENTER WEEKLY STATUS                    
                           CORE NETWORK DATA                          
                    (as of 21-AUG-1992 15:05:58.57)                   
                                                                      
         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  
Site name            Acr. Receiver         2   3   4   5   6   7   8  
-------------------- ---- --------------- --- --- --- --- --- --- --- 
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   -  
GRAZ                 GRAZ ROGUE            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 ROGUE            X   X   X   X   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  
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   X   X   X  
RICHMOND (BIS)       RCM2 ROGUE            X   X   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   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   X   X   X   X  
USUDA                USUD ROGUE            -   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   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   X   X   X  
ZIMMERWALD           ZIMM TRIMBLE SST      X   X   X   X   X   X   X  
--------------------                                                  
                  40                                                  

 The 4 char-ids of the stations complies with Zuheir Altamimi files. Some stations 
are identified differently by other people, but their is a majority of them with a 
unique id among all the centers with whom we operate. Anyway we have made ourselves 
a list of synonyms to get rid of file identifying problems during automated 
transfers. I can send it to anyone interested.

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 17:39:42.31)                   
                                                                      
        GPS WEEK #649    14/6/1992 to 20/6/1992   days 166-172        

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

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 17:39:54.44)                   
                                                                      
        GPS WEEK #650    21/6/1992 to 27/6/1992   days 173-179        

                              1    1    1    1    1    1    1         
                              7    7    7    7    7    7    7         
Center           Type         3    4    5    6    7    8    9         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    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         
                                                                      
GFZ              EPH          -    -    X    -    -    -    -         
                 EPH_Z        X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
JPL              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SP3          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
SIO              EPH          X    X    X    X    X    X    X         
                                                                      
UTX              EPH          X    X    X    X    X    X    X         
                 EPH_SP1      X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                 SUM_V1       X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 17:40:08.69)                   
                                                                      
         GPS WEEK #651    28/6/1992 to 4/7/1992   days 180-186        

                              1    1    1    1    1    1    1         
                              8    8    8    8    8    8    8         
Center           Type         0    1    2    3    4    5    6         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    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         
                                                                      
GFZ              EPH_Z        X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
JPL              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SP3          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
SIO              EPH          X    X    X    X    X    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 21-AUG-1992 17:40:21.61)                   
                                                                      
         GPS WEEK #652    5/7/1992 to 11/7/1992   days 187-193        

                              1    1    1    1    1    1    1         
                              8    8    8    9    9    9    9         
Center           Type         7    8    9    0    1    2    3         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    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         
                                                                      
GFZ              CLK          X    X    X    X    X    X    X         
                 EPH_Z        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         
                                                                      
SIO              EPH          X    X    X    X    X    X    X         
                                                                      
UTX              ERP          X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 18:05:39.57)                   
                                                                      
        GPS WEEK #653    12/7/1992 to 18/7/1992   days 194-200        

                              1    1    1    1    1    1    2         
                              9    9    9    9    9    9    0         
Center           Type         4    5    6    7    8    9    0         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    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         
                                                                      
GFZ              CLK          X    X    X    X    X    X    X         
                 EPH_Z        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         
                                                                      
SIO              EPH          X    X    X    X    X    X    X         
                                                                      
UTX              ERP          X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 17:40:44.14)                   
                                                                      
        GPS WEEK #654    19/7/1992 to 25/7/1992   days 201-207        

                              2    2    2    2    2    2    2         
                              0    0    0    0    0    0    0         
Center           Type         1    2    3    4    5    6    7         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    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         
                                                                      
GFZ              CLK          X    X    X    X    X    X    X         
                 EPH_Z        X    X    X    X    X    X    X         
                 ERP          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         
                                                                      
SIO              EPH          X    X    X    X    X    X    X         
                                                                      
UTX              ERP          X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 17:40:56.67)                   
                                                                      
         GPS WEEK #655    26/7/1992 to 1/8/1992   days 208-214        

                              2    2    2    2    2    2    2         
                              0    0    1    1    1    1    1         
Center           Type         8    9    0    1    2    3    4         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    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         
                                                                      
SIO              EPH          X    X    X    X    X    X    X         
                                                                      
UTX              ERP          X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 21-AUG-1992 17:41:08.34)                   
                                                                      
         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         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
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    -    -    -    -    -         

 The type column reproduces the extension of the filename, and the center column 
reproduces the 3 first characters of the filename. 

 Any remark on these reports is welcomed.

Loic Daniel.

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

From:     Bob E. Schutz
Subject:  Earth  Orientation Results Submitted to IERS
          --------------------------------------------

      Earth  Orientation Results Submitted to IERS

EARTH ROTATION PARAMETERS
ANALYSIS CENTER:  UNIVERSITY OF TEXAS CENTER FOR SPACE RESEARCH
DATA:  GPS
SOLUTION IDENTIFIER:  EOP(CSR) 92 P 01
SUBMISSION DATE: 22 AUGUST 1992

Notes:  
  1.  RMS is in cm
  2.  The following satellites were included (by PRN): 2,3,11,12,13,14,15,16,17,18,19,20,21,23,24,25,26,28
  3.  AS was "on" during Day 215 (MJD 48836) and approximately first 10 hours of Day 216 (MJD 48837)
      Satellites with AS:  2,16,17,20,21,23,24,25,26,28.
  4.  AS was "on" during Day 221 (MJD 48842), beginning approximately 01:00.  Same satellites as in 3.
  5.  The RINEX files for some Rogue receivers contain no AS-affected satellites, others exhibit noisier
      measurements.  The latter is the primary cause of the higher than normal RMS on AS-affected days.
  6.  Primarily to support the EPOCH-92, "codeless" data from Hobart, Wellington, Townsville, Mojave
      and Westford (CIGNET sites) have been included to aid the orbit determination.
  7.  The sx and sy for AS-affected days are scaled from the formal values.  Other values are formal sigmas.

   MJD         x        y    UT1        sx       sy     sUT1     RMS   cxy   cxUT1 cyUT1     Sta  Sat Passes

 48836.5 -0.08289  0.45642  0.000000  0.00280  0.00355  0.000000 5.85  0.054  0.000  0.000    25  18   227
 48837.6 -0.08429  0.45679  0.000000  0.00150  0.00150  0.000000 3.75 -0.041  0.000  0.000    25  18   335
 48838.5 -0.08216  0.45687  0.000000  0.00013  0.00013  0.000000 2.39  0.018  0.000  0.000    23  18   483
 48839.5 -0.07924  0.45897  0.000000  0.00013  0.00012  0.000000 2.19  0.048  0.000  0.000    23  18   504
 48840.5 -0.07942  0.46127  0.000000  0.00014  0.00017  0.000000 2.12 -0.039  0.000  0.000    23  18   486
 48841.5 -0.07692  0.46298  0.000000  0.00016  0.00022  0.000000 1.52  0.023  0.000  0.000    20  18   403
 48842.5 -0.07256  0.46898  0.000000  0.00245  0.00390  0.000000 5.19  0.069  0.000  0.000    24  18   244

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

From:     Joachim Feltens
Subject:  ESA/ESOC analysis results (esa06577.sum)
          ----------------------------------------

-------------------------
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 August 09-15 (days 222-228,GPS week 657)

 *******************************************************************************
 On days 222, 223 and 228 (August 9,10 and 15) there have been anti-spoofing
 tests. One test period lasted from day 221 to 223, the other one from day 228
 to 230. So for this days our NGS-Format orbit files only contain such satel-
 lites, that obviously were not affected by anti-spoofing (see table below).
 *******************************************************************************

1. SOFTWARE USED:   GPSOBS/BAHN5

2. MODELS AND CONSTANTS USED

   a) General:                 no changes with respect to previous runs

   b) Satellite Force Model:   no changes with respect to previous runs

      The following table gives an overview over the satellites that have been
      used for the different one-day-arc solutions:     "+" used, "-" not used.
      __________________________________________________________________________
      PRN02| 03| 11| 12| 13| 14| 15| 16| 17| 18| 19| 20| 21| 23| 24| 25| 26| 28|
      ____-|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
      DAY| |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
      222|A| + | + | + | + | + | + | A | A | + | + | A | A | A | A | A | A | A |
      223|A| + | + | + | + | + | + | A | A | + | + | A | A | A | A | A | A | A |
      224|+| + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + |
      225|+| + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + |
      226|+| + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + |
      227|+| + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + |
      228|A| + | + | + | + | + | + | A | A | + | + | A | A | A | A | A | A | A |

      "A" means anti-spoofing tests

   c) 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. 65  -  IGS site
      information and coordinates,updated version of IERS/IGS Tables in IGS Mail
      No. 33  -  (Boucher and Altamimi).
      __________________________________________________________________________
                          |             |    |    GPS WEEK 657     |
                          |             |    | 2  2  2  2  2  2  2 |
                          |             |    | 2  2  2  2  2  2  2 |
              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| e  e  e  e  e  e  e |
        Penticton         | U.S.A.      |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| -- e  F  F  F  F  F |
        Hartebeesthoek    | South Africa|HART| e  e  e  e  e  e  e |
        Herstmonceux      | U.K.        |HERS| -- F  F  F  F  F  F |
        Kokee Park        | U.S.A/Hawaii|KOKB| e  e  e  e  e  e  e |
        Kourou      (ESA) | French Guyan|KOUR| e  e  e  e  e  e  e | 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 |
        McMurdo           | Antarctica  |MCMU| e  e  e  e  e  e  e |
        Metsahovi         | Finland     |METS| F --- F  F  F  F  F |
        Ny Alesund/Spitzb.| Norway      |NYAL| e  e  e  e  e  e  e |
        Onsala            | Norway      |ONSA| e ------ e  e  e  e |
        Pamatai/Tahiti    | France      |PAMA| e  e  e --- e  e  e |
        Richmond          | U.S.A/Florid|RCM2| -------- e --- e  e | own estim.
        Santiago          | Chile       |SANT| e  e  e  e  e  e  e |
        Tai-Shi           | Taiwan      |TAIW| e  e  e  e  e  e  e |
        Usuda             | Japan       |USUD| -- e  e  e  e  e  e |
        Wettzell          | Germany     |WETT| 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.

   d) Earth Rotation Parameters:   no changes with respect to previous runs

   e) Observations:                no changes with respect to previous runs

3. PARAMETERS TO BE ESTIMATED PER 1-DAY ARC

   a) Satellite Parameters per Spacecraft:    no changes with respect to
                                                                   previous runs
   b) Station related parameters per ground station:  no changes with respect to
                                                                   previous runs
   c) Earth Rotation Parameters:              no changes with respect to
                                                                   previous runs
4. PARAMETERS TO BE KEPT FIXED IN THE SOLUTION

   a) Satellite Parameters per Spacecraft:    no changes with respect to
                                                                   previous runs
   b) Station related parameters per Ground Station:  no changes with respect to
                                                                   previous runs
5. PRODUCTS GENERATED

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

   ESA06570.EPH   - Precise GPS orbits for day 222 (August 09)
   ESA06571.EPH   - Precise GPS orbits for day 223 (August 10)
   ESA06572.EPH   - Precise GPS orbits for day 224 (August 11)
   ESA06573.EPH   - Precise GPS orbits for day 225 (August 12)
   ESA06574.EPH   - Precise GPS orbits for day 226 (August 13)
   ESA06575.EPH   - Precise GPS orbits for day 227 (August 14)
   ESA06576.EPH   - Precise GPS orbits for day 228 (August 15)
   ESA06577.ERP   - Earth rotation results for week beginning 1992 August 09
   ESA06577.SUM   - The name of this text file

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

From:    Werner Gurtner
Subject: Zimmerwald Receivers
         --------------------

1. The Ashtech receiver on loan in Zimmerwald has been upgraded with
   a new firmware version last Wednesday, 19 August. Since then it is
   not possible anymore to download the data to the PC. We are in
   contact with the manufacturer, but until the problem has been solved
   there will be no data available.

2. The Federal Office of Topography is doing some GPS surveys in
   Switzerland this week using Trimble SLD's. These SLDs
   only run in the "standard mode", i.e. on non-integer seconds.
   In order to be able to accurately refer this survey to the Zimmerwald
   reference station, they have to switch the permanent receiver
   (Trimble SST) in Zimmerwald to standard mode, too.
   (There is no spare SLD available to be put to Zimmerwald.)
   Under SA these observations cannot be accurately combined with other 
   instruments running on full seconds. That's why we will not
   upload any SST data to the IGS network this week.

Werner Gurtner
Astronomical Institute
University of Berne

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

From:   Yehuda Bock
Suject: SIO PGGA/GARNER Analysis Center Results (21 August, 1992)
        ---------------------------------------------------------

Yehuda Bock, Peng Fang and Keith Stark

This week we include the following information:

(1) Note on SA tests
(2) Polar motion results for 8-14 August
                 
(1) Note on SA tests

Our solutions during AS periods do not include data from
the affected satellites (i.e., PRN's 2,16,17,20,21,23,24,25,26,28).
The consequences at this stage:
(a) Our orbital products do not include improvements to these satellites
during the AS period.
(b) Polar motion values for the AS period have larger uncertainties.

(2) Updated DOMES numbers and polar motion results.

    The set of coordinates described below is based on the 
    analysis of the of the first 58 days of the IGS campaign, and
    include coordinates of the PGGA sites after the Landers earthquake.
    The polar motion table has been updated for the period 8-14 August.

1. Analysis Center: Scripps Institute of Oceanography
2. Solution Identifier: Submission 920821
3. Software used: GAMIT/GLOBK
4. Definition of Terrestrial Reference Frame:
     Origin: Nominally ITRF-90
     Orientation: Nominally ITRF-90
     Reference epoch: 1992.57  (MJD 48829.5)
     Relativity Scale: Terrestrial
     Velocity of light: 299792458.0 m/sec
     Permanent tidal correction: None

5. Adjusted parameters:
   (a) Double-difference data
   (b) Single day orbit arcs, 6 ICs and 3 radiation parameters per 
satellite-per-day
   (c) One-per-day-per-station zenith tropospheric parameter,
   (d) Bias parameters, one for each independent double difference 
combination.
   (e) Station positions with +- 10 m constraints at stations other 
than: ALGO, YELL, PIN1, PINB, JPL1, JPLB, SIO1, SIO2, FAIR, KOKR, 
USUD, DS10, DS1B, DS40, DS41, DS60, YAR1, MCMU, TAIW, ONSA, WTZ1, 
METS, MATE, TROM, NALL, KOSG.  For these stations constraints of
+0.001 m for horiziontal and +-0.005 m for the height were used.
   (f) X and Y pole position once per day.  (No estimate is made of UT1-
AT since these deviations are absorbed into the orbital parameters).
   (g) On MJD 48800.5, the California sites are treated as separate
sites before and after the Landers earthquake.

6. Station coordinates used.

  DOMES #  Name          X            Y             Z        Epoch    Dur        +- X   +- Y   +- Z    Vx       Vy      Vz
                        (m)          (m)           (m)        MJD      days       (m)    (m)   (m)    (m/yr)  (m/yr)  (m/yr)
X10302M003 Tromsoe    2102940.447   721569.360  5958192.092 48829.5    51.0      0.002  0.002  0.003 -0.0186  0.0110  0.0052 
X10317M001 NALL       1202431.371   252626.765  6237770.782 48829.5    49.0      0.002  0.002  0.003 -0.0178  0.0083  0.0031 
X10402M004 ONSA       3370658.746   711876.997  5349786.805 48829.5    50.0      0.002  0.002  0.003 -0.0168  0.0147  0.0086 
X10503S011 METS       2892571.016  1311843.303  5512634.005 48829.5    36.0      0.002  0.002  0.003 -0.0192  0.0132  0.0070 
X11001M002 Graz       4194424.048  1162702.525  4647245.239 48829.5    12.0      0.003  0.002  0.003 -0.0164  0.0168  0.0106 
X12734M008 MATE new   4641949.803  1393045.257  4133287.221 48829.5    49.0      0.002  0.002  0.003 -0.0157  0.0179  0.0117 
X13212M007 Herstmon   4033470.295    23672.714  4924301.128 48829.5    46.0      0.005  0.003  0.005 -0.0135  0.0165  0.0110 
X13407S012 Madrid     4849202.507  -360329.166  4114912.958 48829.5    40.0      0.003  0.002  0.003 -0.0101  0.0185  0.0135 
X13504M003 Kootwijk   3899225.329   396731.773  5015078.266 48829.5    43.0      0.002  0.002  0.003 -0.0150  0.0161  0.0104 
X14201S020 Wettzell   4075578.658   931852.651  4801569.960 48829.5    48.0      0.002  0.002  0.003 -0.0161  0.0165  0.0105 
X21729S003 Usuda     -3855262.632  3427432.244  3741020.958 48829.5    27.0      0.004  0.004  0.005 -0.0212 -0.0097 -0.0130 
X23601M001 Taipei    -3024781.855  4928936.973  2681234.516 48829.5    46.0      0.005  0.005  0.005 -0.0232 -0.0078 -0.0118 
X30302M002 HART       5084625.120  2670366.540 -2768494.199 48829.5    32.0      0.008  0.007  0.004 -0.0013  0.0241  0.0209 
X31303M001 MASPollom  5439189.154 -1522054.819  2953464.086 48829.5    26.0      0.003  0.002  0.003 -0.0040  0.0185  0.0169 
X40101M001 St. John   2612631.381 -3426807.002  4686757.711 48829.5    17.0      0.003  0.002  0.003 -0.0195 -0.0033  0.0084 
X40104M002 ALGO        918129.627 -4346071.211  4561977.762 48829.5    49.0      0.002  0.002  0.002 -0.0193 -0.0029  0.0012 
X40105M002 Penticon  -2059164.597 -3621108.342  4814432.369 48829.5    51.0      0.002  0.002  0.002 -0.0201 -0.0023 -0.0103 
X40127M003 YELL      -1224452.373 -2689216.062  5633638.275 48829.5    51.0      0.002  0.002  0.002 -0.0231 -0.0029 -0.0064 
X40400M006 JPL1      -2493304.076 -4655215.507  3565497.271 48829.5    23.0      0.002  0.003  0.003 -0.0372  0.0153  0.0120 
X40400M007 JPL1 PEQ  -2493304.072 -4655215.483  3565497.259 48829.5    28.0      0.002  0.003  0.003 -0.0372  0.0153  0.0120 
X40405S028 Golstone  -2353614.088 -4641385.363  3676976.416 48829.5    22.0      0.002  0.003  0.003 -0.0159  0.0069 -0.0081 
X40405S031 Gold PEQ  -2353614.092 -4641385.353  3676976.394 48829.5    21.0      0.002  0.003  0.003 -0.0159  0.0069 -0.0081 
X40407M002 PIN1      -2369510.404 -4761207.161  3511396.023 48829.5    23.0      0.002  0.003  0.002 -0.0224  0.0218 -0.0004 
X40407M003 PIN1 PEQ  -2369510.373 -4761207.140  3511396.054 48829.5    29.0      0.002  0.003  0.002 -0.0224  0.0218 -0.0004 
X40408M001 Fairbanks -2281621.313 -1453595.741  5756961.965 48829.5    19.0      0.002  0.002  0.003 -0.0233 -0.0027 -0.0099 
X40424M004 Kokee Pk. -5543838.053 -2054587.456  2387809.481 48829.5    43.0      0.003  0.002  0.003 -0.0100  0.0613  0.0294 
X40460M002 SIO2      -2455539.248 -4767224.071  3441628.810 48829.5    17.0      0.002  0.004  0.003 -0.0335  0.0302  0.0180 
X40460M003 SIO2 PEQ  -2455539.226 -4767224.054  3441628.808 48829.5    21.0      0.002  0.003  0.003 -0.0335  0.0302  0.0180 
X40460M001 SIO1      -2455521.697 -4767213.379  3441654.850 48829.5    12.0      0.004  0.003  0.003 -0.0335  0.0302  0.0180 
X41705M003 SANT       1769692.988 -5044573.802 -3468321.387 48829.5    48.0      0.006  0.007  0.004  0.0013 -0.0044  0.0071 
X50103S017 CANB(DS42)-4460996.139  2682557.264 -3674444.110 48829.5    39.0      0.006  0.006  0.005 -0.0363  0.0023  0.0458 
X50107M004 Yarragad. -2389025.452  5043316.874 -3078531.064 48829.5    46.0      0.006  0.006  0.005 -0.0485  0.0107  0.0552 
X66001S005 Mc Murdo  -1310696.393   310469.318 -6213368.515 48829.5    43.0      0.007  0.007  0.005  0.0091 -0.0107 -0.0024 
X92201M003 Pamatai   -5245195.149 -3080472.127 -1912825.677 48829.5    20.0      0.006  0.006  0.004 -0.0416  0.0527  0.0293 
X50134M001 Darwin    -4091358.542  4684606.625 -1408580.749 48829.5    11.0      0.007  0.006  0.005 -0.0376 -0.0146  0.0609 
X40420M006 VNDP      -2678089.800 -4525437.755  3597431.423 48829.5    15.0      0.002  0.003  0.003 -0.0302  0.0327  0.0187 
NOTES:
 (a) The epoch refers to the epoch at which the site position applies
and not the mid-point of the data span.  We have also added the
velocities adopted for these sites at the end of each line.  For most sites
these are the NUVEL-1 velocities with the North American AM0-2 velocity
added.  For PIN1 and DS10, Observed velocities (based on a combined VLBI/
GPS solution using ~10 years of data have been used).
 (b) The PEQ notation in the site name (PINB, DS1B, SIOC and JPLB) denotes 
post-Landers earthquake position (applicable after 11:58 UTC June 28, 1992).
 (c) These coordinates were estimated from the first 51 days of IGS data.
They have been rotated and translated into the ITRF 1990 frame by use
of the horizontal coordinates at all sites.  The rms difference between 
the horizontal coordinates of these sites and our previous realization 
(second IERS submission) was 5 mm.

6. Solution 920821

* MIT_TO_IERS: Run on 1992/ 8/21 17:19
* Input file : pmu082192.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  -0.06241  0.47802  0.379500  0.00013 0.00013 0.000000 1.73  0.072  0.000  0.000   28  18 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.