Subject: [IGSREPORT-6059] Wk 0999 Preliminary IGS SINEX Combination
From: R. Ferland , D. Hutchison
Date: Wed, 12 May 1999 12:39:34 PDT

******************************************************************************
IGS Electronic Report    Wed May 12 12:39:34 PDT 1999      Message Number 6059
******************************************************************************

Author: R. Ferland , D. Hutchison
Subject: Wk 0999 Preliminary IGS SINEX Combination

===================================================================
 Combined AC  solution for GPS week 0999 -  99/02/28 to 99/03/06
===================================================================

1) Contacts:
============
e-mail: [email-masked]
tel:    (613)995-4002 (Remi Ferland)
fax:    (613)995-3215

2) Products:
============
All products are available at CDDISA

igs99P0999.snx  Combined weekly solution. 
igs99P0999.erp  Daily Earth Rotation Parameters.
IGS99P09.snx    Cumulative Combined solution. 
igs99P0999.sum  This file.
igs99P0999.itr  Residuals between the AC and the ITRF96 for the RF stations.
igs99P0999.res  Residuals between the AC and the Combined Weekly solution.
IGS99P09.res    Residuals between the AC and the Cumulative Combined solution.
 
Where IGSyyPww & igsyyPwwww represent:
      yy      Last 2 digits of the year
      ww      week in year yy
      wwww    GPS week
      P       GPS technique used
 
3) Combination Strategy:
========================

       The AC solutions are processed using the following procedure:

3-1) The AC solutions are checked/corrected for possible format problems,
     station names inconsistencies, etc...
3-2) The AC solutions are unconstrained according to the information provided
     in the SOLUTION/APRIORI Block.
3-3) The AC solutions are aligned (using a 7-parameters) and compared to the
     ITRF96 Reference Frame (RF) stations at the current epoch.
     ftp://igscb.jpl.nasa.gov/igscb/station/coord/ITRF96_IGS_RS47.SNX.Z
3-4) The AC are compared to ITRF, to each other, to the previous week.
     solution and to the cumulative solution in order to identify and remove.
     outliers.
3-5) The weekly AC solutions are combined and added to the cumulative
     combined solution.

     The weekly combined solution was aligned to the ITRF96 of the current
     epoch using a 7-parameters transformation. The cumulative combined
     solution was aligned to the ITRF96 of the reference epoch using a
     14-parameters transformation.

     For more details, see:
     Blewitt, G., Y. Bock and J. Kouba, 1994, Constructing the IGS Polyhedron
       by Distributed Processing, Proceedings of the IGS workshop on the ITRF
       densification, held at JPL, Pasadena, Cal., Nov. 30-Dec. 2, pp 21-36.
     Kouba, J., J. Ray and M.M. Watkins, IGS Reference Frame Realization, 1998
       IGS Analysis Center Workshop Proceedings, European Space Operations
       Centre, Darmstadt, Germany.

The combination software was developed at NRCan.

4) Remarks:
===========

     JPL = jpl0999g.snx
     jpl = jpl09997.snx

     itr = ITRF97 with current 47 Reference Frame stations plus
	   AUCK BAHR CAS1 CHAT MCM4.
     JPL mit ncl itr used to quality control the weekly combination.
     emr jpl ngs sio excluded from the geocenter estimation (Sec. 5-4).

5) Results:
===========

5-1)      AC (Variance Factor)^0.5 estimates:
==================================================
           The residuals used in the estimation of the Variance Factor
           are the differences between the cumulative combined solution
           and each AC weekly solution.
           SF = (Variance Factor)^0.5 = (Chi^2/dof)^0.5
           Final(SF) = Apriori(SF) * Aposteriori(SF)

Solution       |# sta| #RF |    Apriori(SF)|Aposteriori(SF)|      Final(SF)|
---------------|-----|-----|---------------|---------------|---------------|
cod            | 120 |  38 |        27.235 |         0.999 |        27.198 |
emr            |  40 |  24 |         6.264 |         0.977 |         6.118 |
esa            |  59 |  36 |         4.659 |         1.038 |         4.838 |
gfz            |  64 |  33 |        22.374 |         0.998 |        22.338 |
jpl            |  57 |  27 |         4.658 |         0.990 |         4.612 |
ngs            |  71 |  42 |        41.029 |         1.064 |        43.636 |
sio            | 132 |  40 |         4.513 |         1.001 |         4.518 |
JPL            | 149 |  40 |         2.177 |         0.995 |         2.165 |
mit            | 151 |  41 |         4.725 |         0.997 |         4.709 |
ncl            |  88 |  41 |         3.132 |         0.998 |         3.125 |
itr            |  52 |  47 |        10.000 |         0.285 |         2.853 |
---------------|-----|-----|---------------|---------------|---------------|

5-2)      Solution Residuals weighted Average & R.M.S. :
========================================================

5-2-1)    With respect to ITRF96 Reference Frame stations:
=========================================================

Solution       |  Weighted Average (mm)    |        R.M.S. (mm)        |
               |      N        E        U  |      N        E        U  |
---------------|---------------------------|---------------------------|
cod            |     1.0     -1.9      0.5 |     4.6      8.1     15.2 |
emr            |    -4.4     -0.8     -0.6 |     8.2     15.2     16.9 |
esa            |    -2.3      0.4      1.7 |     6.0     15.0     18.2 |
gfz            |    -1.6     -0.7      1.6 |     5.4      5.9     15.4 |
jpl            |    -2.5     -0.4      0.2 |     5.4      5.9     13.4 |
ngs            |    -3.0     -1.1      1.3 |    10.5     11.4     16.2 |
sio            |    -2.4     -1.2      1.2 |     6.9      9.8     20.2 |
JPL            |    -0.8     -0.5      1.1 |     4.9      5.8     11.5 |
mit            |    -0.2     -0.6      0.4 |     3.7      5.3      7.1 |
ncl            |    -0.8     -0.7      0.1 |     3.9      6.3      6.5 |
itr            |    -0.2      0.0     -0.2 |     3.9      5.8      8.6 |
---------------|---------------------------|---------------------------|

5-2-2)    With respect to Weekly Combination:
============================================

Solution       |  Weighted Average (mm)    |        R.M.S. (mm)        |
               |      N        E        U  |      N        E        U  |
---------------|---------------------------|---------------------------|
cod            |     2.5     -1.2      0.5 |     3.5      4.0      9.5 |
emr            |    -3.4     -2.0     -1.8 |     5.7     11.4     11.7 |
esa            |    -1.3     -1.1     -0.6 |     5.2     13.1     12.7 |
gfz            |    -0.1     -0.2      0.6 |     2.9      2.3      9.4 |
jpl            |     0.0      0.0     -0.1 |     2.9      3.6      8.6 |
ngs            |    -2.1     -0.5     -2.4 |     8.2      7.5     13.8 |
sio            |    -2.0      1.5     -1.2 |     4.6      5.4     11.6 |
JPL            |     0.7     -0.1      0.0 |     1.2      2.1      4.2 |
mit            |     1.2      0.0      0.3 |     1.8      2.2      5.5 |
ncl            |     0.2      0.5      0.5 |     1.2      1.9      5.5 |
itr            |     1.3      0.7     -1.3 |     3.0      3.4     11.3 |
ITR            |     1.2      0.9     -0.7 |     4.5      6.1     11.5 |
---------------|---------------------------|---------------------------|

5-2-3)    With respect to Cumulative Combination:
================================================

Solution       |  Weighted Average (mm)    |        R.M.S. (mm)        |
               |      N        E        U  |      N        E        U  |
---------------|---------------------------|---------------------------|
cod            |     0.2     -1.1     -0.7 |     3.9      3.9     13.2 |
emr            |    -5.1     -2.8     -3.5 |     8.0     11.8     16.8 |
esa            |    -3.0     -1.4     -2.6 |     6.8     14.5     18.4 |
gfz            |    -1.7     -0.8     -0.9 |     3.4      3.4     16.2 |
jpl            |    -2.0     -0.8     -0.4 |     4.4      4.9     12.2 |
ngs            |    -3.5     -1.6     -3.7 |     9.0      9.4     19.2 |
sio            |    -4.1      1.0     -1.7 |     7.1      7.1     14.6 |
JPL            |    -1.4     -0.2     -0.9 |     3.3      3.9     11.7 |
mit            |    -1.1      0.1     -0.4 |     3.7      3.7     11.4 |
ncl            |    -1.3     -0.3     -1.0 |     3.7      3.8     11.7 |
itr            |     0.0      0.4     -1.4 |     2.5      2.7      8.8 |
igs            |    -2.1     -0.1     -0.6 |     3.6      3.7      9.2 |
ITR            |     0.1      0.9     -1.2 |     5.2      7.1     13.3 |
---------------|---------------------------|---------------------------|

5-3)      7-Parameters Transformation: AC ----> ITRF96_IGS_RS47.snx
======================================================================

5-3-1)    Estimates : 
=====================

Solution       |    R X      R Y      R Z      T X      T Y      T Z      SCL  |
               |   (mas)    (mas)    (mas)     (mm)     (mm)     (mm)    (ppb) |
---------------|---------------------------------------------------------------|
cod            |  -0.030   -0.013   -0.011      4.3     -0.7     11.4     0.49 |
emr            |   0.123    0.026    0.032      3.2    -10.0    220.4     1.17 |
esa            |  -0.028   -0.015    0.028     13.7      3.6      0.7     1.01 |
gfz            |  -0.001    0.016    0.069      0.7      0.7      0.0    -0.34 |
jpl            |   0.021   -0.024    0.019     -1.8     14.8    119.2     0.78 |
ngs            |  -0.167    0.608   -0.006    -20.5     13.2    140.3     0.73 |
sio            |   0.824    1.687   -1.093     -6.0      4.1    190.0    -0.02 |
JPL            |  -0.070    0.063    0.080     -0.8      0.3     -0.5     0.44 |
mit            |   0.002    0.016    0.021      0.3      0.2     -0.3     0.19 |
ncl            |   0.004    0.004    0.068      0.9      0.8     -0.7     0.38 |
itr            |  -0.157    0.258    0.057     -0.6     -0.6     14.1    -1.39 |
---------------|---------------------------------------------------------------|

5-3-2)    Sigmas : 
==================

Solution       |    R X      R Y      R Z      T X      T Y      T Z      SCL  |
               |   (mas)    (mas)    (mas)     (mm)     (mm)     (mm)    (ppb) |
---------------|---------------------------------------------------------------|
cod            |   0.068    0.069    0.073      1.8      1.8      1.7     0.27 |
emr            |   0.092    0.086    0.093      2.3      2.3      2.2     0.35 |
esa            |   0.071    0.069    0.076      1.8      1.8      1.8     0.28 |
gfz            |   0.075    0.072    0.079      1.9      1.9      1.9     0.29 |
jpl            |   0.078    0.082    0.093      2.1      2.1      2.1     0.33 |
ngs            |   0.067    0.067    0.071      1.7      1.7      1.7     0.27 |
sio            |   0.068    0.068    0.071      1.8      1.8      1.7     0.27 |
JPL            |   0.068    0.067    0.072      1.8      1.8      1.7     0.27 |
mit            |   0.067    0.067    0.071      1.7      1.7      1.7     0.27 |
ncl            |   0.068    0.068    0.071      1.7      1.7      1.7     0.27 |
itr            |   0.060    0.062    0.064      1.6      1.6      1.6     0.24 |
---------------|---------------------------------------------------------------|

5-4)      Geocenter:
====================

               |      X        Y        Z  |    s X      s Y      s Z  |
               |    (mm)     (mm)     (mm) |    (mm)     (mm)     (mm) |
---------------|---------------------------|---------------------------|
igs            |     0.5      1.6      0.2 |     1.9      1.9      2.0 |
---------------|---------------------------|---------------------------|

5-5)      ERP Residuals Weighted Average & R.M.S. :
===================================================

5-5-1)    Weighted Average :
============================

Solution       |      UT       LOD       XPO      XPOR       YPO      YPOR  |
               |      us        us    .01mas    .01ma/d   .01mas    .01ma/d |
---------------|------------------------------------------------------------|
cod            |     ---      -16.1      -3.1        .1      11.0      -1.9 |
emr            |     ---       -8.8      18.9       6.3      -9.6      47.8 |
esa            |     ---        6.4      -7.4      -1.5     -12.1       4.8 |
gfz            |     ---        2.1      -6.9       3.2       7.1      -3.5 |
jpl            |     ---       31.9       3.0      -2.8      -3.1      50.4 |
ngs            |     ---      -23.0     -18.4     -28.1      21.3     -17.1 |
sio            |     ---        ---       ---       ---       ---       --- |
JPL            |     ---        ---       ---       ---       ---       --- |
mit            |     ---      -22.9      -7.6       -.5     -12.6      -1.8 |
ncl            |     ---        ---       ---       ---       ---       --- |
itr            |     ---        ---       ---       ---       ---       --- |
ITR            |     ---        ---       ---       ---       ---       --- |
---------------|------------------------------------------------------------|

5-5-2)    R.M.S. :
==================

Solution       |      UT       LOD       XPO      XPOR       YPO      YPOR  |
               |      us        us    .01mas    .01ma/d   .01mas    .01ma/d |
---------------|------------------------------------------------------------|
cod            |     ---       21.1       3.9      15.6      11.4      10.5 |
emr            |     ---       13.8      20.5      44.6      11.7      66.4 |
esa            |     ---       26.2      10.8      38.7      14.0      19.5 |
gfz            |     ---       12.9       8.4       5.8       8.3      11.3 |
jpl            |     ---      143.0       8.4      29.4       5.3      59.2 |
ngs            |     ---       78.4      20.4      57.4      33.2      38.0 |
sio            |     ---        ---       ---       ---       ---       --- |
JPL            |     ---        ---       ---       ---       ---       --- |
mit            |     ---       26.8       8.3      15.0      13.2       8.1 |
ncl            |     ---        ---       ---       ---       ---       --- |
itr            |     ---        ---       ---       ---       ---       --- |
ITR            |     ---        ---       ---       ---       ---       --- |
---------------|------------------------------------------------------------|

5-6)      Outliers:
===================

Treshold set at 5 sigmas

 Solution             Solution           |     Station|    dp      dl      dh |
              Minus                      |code id soln|   (mm)    (mm)    (mm)|
-----------------------------------------|------------|-----------------------|
                                         |            |                       |
ITRF96_IGS_RS47.snx  esa09997.snx        |MADR  A ----|    6.3   -47.7    31.6|
                                         |            |                       |
ITRF96_IGS_RS47.snx  jpl09997.snx        |MADR  A ----|   10.4   -43.6    39.7|
                                         |            |                       |
ITRF96_IGS_RS47.snx  JPL0999g.snx        |MADR  A ----|    7.2   -42.4    38.6|
                                         |            |                       |
ITRF96_IGS_RS47.snx  JPL0999g.snx        |GODE  A ----|    1.4   -15.3   -14.7|
                                         |            |                       |
ITRF96_IGS_RS47.snx  mit0999g.snx        |MADR  A ----|    6.7   -41.2    36.8|
                                         |            |                       |
IGS99P08.snx         jpl09997.snx        |MDVO  A ----|  -13.9     1.2   -77.3|
                                         |            |                       |
IGS99P08.snx         JPL0999g.snx        |YAKA  A ----|  -18.5     5.9     6.2|
                                         |            |                       |
IGS99P08.snx         igs99P0999.snx      |BOGT  A ----|   -4.4    -4.1   -66.7|
IGS99P08.snx         igs99P0999.snx      |MADR  A ----|   11.5   -30.0    17.2|
IGS99P08.snx         igs99P0999.snx      |WES2  A ----|    4.7   -10.2    -2.6|
IGS99P08.snx         igs99P0999.snx      |YAKA  A ----|  -18.4     5.5    13.8|
-----------------------------------------|------------|-----------------------|

5-7)      Conflicts:
====================

STATIONS WITH INCONSISTENT ANTENNA ECCENTRICITY INFORMATION:
(FILE: / STATION / L1 (UNE) / L2 (UNE) / ECCENTRICITY (UNE))
(UNE = Up North East (metres))

jpl0999g.snx: BAKO    .078   .000  -.003   .074  -.003  -.001  1.676   .000   .000
mit0999g.snx: BAKO    .078   .000  -.003   .074  -.003  -.001   .000   .000   .000
   - Unresolvable. No log file. Antenna parameters not listed in igs.snx.

jpl0999g.snx: BISH    .078   .000  -.003   .074  -.003  -.001   .046   .000   .000
mit0999g.snx: BISH    .110   .000   .000   .128   .000   .000   .009   .000   .000
   - Unresolvable. No log file. Antenna parameters not listed in igs.snx.

jpl0999g.snx: BSHM    .000   .000   .000   .000   .000   .000   .000   .000   .000
mit0999g.snx: BSHM    .081   .000  -.001   .078  -.002   .004   .000   .000   .000
   - Unresolvable. No log file. Antenna parameters not listed in igs.snx.

jpl0999g.snx: INEG    .000   .000   .000   .000   .000   .000   .130   .000   .000
mit0999g.snx: INEG    .081   .000  -.001   .078  -.002   .004   .100   .000   .000
   - Unresolvable. No log file. Antenna parameters not listed in igs.snx.

jpl0999g.snx: MDVO    .000   .000   .000   .000   .000   .000   .146   .000   .000
mit0999g.snx: MDVO    .069   .000   .000   .069   .000   .000   .146   .000   .000
   - Both  wrong. Latest log file (mdvo9902.log) gives antenna as 4000ST L1/L2 GEOD W/O GP,
     presumably matching  igs_01.pcv's  4000ST L1/L2 GEOD Mod. 14532 with L1/L2 offsets of
     0.078, 0.000, -0.003 M.  (up, north, east)   and 0.074, -0.003, -0.001 M.  (up, north,
     east).  L1/L2  offset 0.069 M.  does occur  in antenna.gra for this antenna,  but the
     user is warned that  igs_01.pcv  should  take  precedence.  However, the only graphic
     appearing in the above log file is for  TRIMBLE:  4000SSE L1/L2 KINEMATIC,  unchanged
     from previous log files.

jpl0999g.snx: SCIP    .110   .000   .000   .128   .000   .000   .000   .000   .000
mit0999g.snx: SCIP    .078   .000   .000   .096   .000   .000   .008   .000   .000
   - Both wrong. Should be L1/L2 offset, eccentricity 0.110, 0.128, 0.008 M. respectively.

jpl0999g.snx: WUHN    .110   .000   .000   .128   .000   .000  2.355   .000   .000
mit0999g.snx: WUHN    .110   .000   .000   .128   .000   .000  2.320   .000   .000
ncl0999g.snx: WUHN    .110   .000   .000   .128   .000   .000  2.355   .000   .000
   - Uncertain. Most recent log file supports an antenna height of 2.32 M., contrary to 2.355 M. 
     given in igs.snx. This log file gives reference point as BCR instead of customary ARP.

jpl0999g.snx: BARB    .000   .000   .000   .000   .000   .000   .000   .000   .000
jpl0999g.snx: MONP    .000   .000   .000   .000   .000   .000   .119   .000   .000
ncl0999g.snx: RAMO    .000   .000   .000   .000   .000   .000   .000   .000   .000
jpl0999g.snx: SUTH    .000   .000   .000   .000   .000   .000   .119   .000   .000
jpl0999g.snx: TROM    .078   .000   .000   .096   .000   .000  2.369   .000   .000

FILE ncl0999g.snx MISSING THE SITE/GPS_PHASE_CENTER BLOCK.
DEFAULTING TO KNOWN L1/L2 OFFSETS AND ECCENTRICITIES.

 
ANTENNA PHASE CENTRE CONFLICTS IN FILE jpl0999g.snx
(MODEL / SER. NO. / L1 (UNE) / L2 (UNE))
(UNE = Up North East (metres))
   DORNE MARGOLIN B     -----    .078   .000   .000   .096   .000   .000
   DORNE MARGOLIN B     -----    .000   .000   .000   .000   .000   .000
 
SITES AFFECTED BY ABOVE CONFLICTS, NON-FIDUCIAL SITES SUBSEQUENTLY EXCLUDED:
   Stations: NYAL 
 
 STATION NAME/POINT CODES CHANGED IN ncl0999g.snx 
 ENFORCED FROM TEMPLATE FILE igs.snx .

    Old     New      IERS
Code/Pt Code/Pt  DOMES NO
------- -------  --------
MADR  A MAD2  A 13407S012

      1 Change  in all.

THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM jpl0999g.snx :
   Stations: AREQ BRAZ KERG KIT3 LHAS

THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM mit0999g.snx :
   Stations: AREQ BRAZ HART KERG KIT3 LHAS

FOR THE FILE mit0998g.snx, UT WAS DELETED PRIOR TO DECONSTRAINING.

THE FOLLOWING ITRF96 FIDUCIAL STATIONS ARE MISSING FROM ncl0999g.snx :
   Stations: AREQ BRAZ HART KERG KIT3 LHAS MAD2 TROM

SITE/ID BLOCK IERS DOMES NOS. VS STATION CODE/PT FIELDS IN COMPARED GNAAC FILES:
(ENTRIES APPEAR ONLY WHERE GNAACS DIFFER.)

IERS DOMES NO    JPL    MIT    NCL
============= ====== ====== ======
    40472S003 AMCT A              
              AMC2 A              
    40472S004        AMC2 A       
    40405S031 GOL2 A GOLD A GOL2 A
              GOLD A GOL2 A GOLD A
              GOL1 A              
    30302M007 HARK A HARK A HARK A
              HART A              
              HAR1 A              
    22306M002 IISC A IISC A IISC A
              IIS1 A              
    13407S012 MAD2 A MAD2 A MADR A
              MADR A MADR A       
    31303M002 MAS1 A        MAS1 A
    31303M001        MAS1 A       
    12309M002 MDVO A        MDVO A
    12309M001        MDVO A       
    50103M108 TID2 A TIDB A TID2 A
              TIDB A TID2 A TIDB A
    12353M001 YAKA A YAKZ A       
              YAKZ A YAKA A       
    50107M004 YAR1 A YAR1 A YAR1 A
              YAR2 A              
 
MISSING IERS DOMES NOS AT JPL:
-----------------------------
  ALIC A  BAKO A  BISH A  BSHM A  ELAT A  GILB A  INEG A  KABR A  KARR A  KATZ A
  MAW1 A  RAMO A  RIOG A  SCIP A  TELA A  TOW2 A  URUM A
 
MISSING IERS DOMES NOS AT MIT:
-----------------------------
  RIOG A  SCIP A  URUM A  BISH A  KATZ A  GILB A  KABR A  BSHM A  ELAT A  TELA A

SITE/ID BLOCK IERS DOMES NOS. VS STATION CODE/PT FIELDS IN ABBREVIATED .ssc FILES:
 cod10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
 emr10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
 esa10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
 gfz10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
 jpl10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
 ngs10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
 sio10007.ssc at cddis.gsfc.nasa.gov or cddisa.gsfc.nasa.gov
(ENTRIES APPEAR ONLY WHERE ACS DIFFER.)

IERS DOMES NO    COD  NRCan    ESA    GFZ    JPL    NGS    SIO
============= ====== ====== ====== ====== ====== ====== ======
    50107M004 YAR1 A YAR1 A YAR1 A YAR2 A YAR1 A YAR1 A YAR1 A
    12309M002 MDVO A        MDVO B                      MDVO A
    22306M002 IISC A        IISC B IISC A        IISC B IISC A
    12355M002 PETR A               PETP A PETP A PETP A PETP A
    40472S004 AMCT A                                    AMC2 A
    50103M108 TIDB A TIDB A TIDB A TID2 A TID2 A TIDB A TID2 A
    30302M007 HART A HART B HART B HARK A HARK A HART B HARK A
    12353M001 YAKZ A                      YAKZ A YAKA A YAKZ A
    10317M003 NYAL A               NYA1 A NYA1 A        NYA1 A
    40405S031 GOLD A GOLD A GOLD A GOL2 A GOL2 A GOLD B GOL2 A
    13407S012               MADR A        MAD2 A MADR A MAD2 A
                                                        MADR A
    22601M001               NTUS A NTUS A               NTUS A
    22601M002                                    NTUS A       
 
MISSING IERS DOMES NOS AT GFZ:
-----------------------------
  BISH A  URUM A  RIOG A
 
MISSING IERS DOMES NOS AT JPL:
-----------------------------
  RAMO A  URUM A
 
MISSING IERS DOMES NOS AT SIO:
-----------------------------
  KATZ A  GILB A  KABR A  ELAT A  TELA A

[Mailed From: Remi Ferland <[email-masked]>]