NASA Analysis Report for Q21072 ($21MAR13XK) 
       This report is a contributed analysis report that does not correspond to 
       the database maintained by the IVS Data Centers for this session.  
   (Analyzed by Karen Baver, Goddard Space Flight Center VLBI Analysis Center.
    Spoolfile source: interactive solve/nuSolve analysis.) 

Problems: The session was very noisy.  Even with the three worst outliers removed, the session fit was 131.004 ps.

Number of observations rejected during correlation:    0 

Number of observations not usable by the software:     3 

    observation    2, WETTZELL:MK-VLBA , 1418+546, 07:31:27, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' 
    observation   18, WETTZELL:MK-VLBA , 1030+415, 07:53:04, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation   35, WETTZELL:MK-VLBA , 3C371   , 08:17:09, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' 

Number of observations rejected during analysis:       3 

    observation   25, WETTZELL:MK-VLBA , 1053+704, 08:02:53, which fits at      826.0 +/-     470.0 ps 
    observation   34, WETTZELL:MK-VLBA , 0340+362, 08:14:55, which fits at     1003.1 +/-     476.3 ps 
    observation   38, WETTZELL:MK-VLBA , 1324+224, 08:20:55, which fits at     -611.6 +/-     274.0 ps 

Other comments: 

  The correlator reported that the fringes of XR3U and XR4U were not detected. The cause of this is unknown.



Parameterization: 
   6 parameters: 
     UT1 offset 
     atmosphere offset for:
         MK-VLBA WETTZELL
     clock offset, first order term, and second order term for:
         WETTZELL

Clock breaks: None

Session Statistics 

  Observations:       43 scheduled 
                      43 correlated (included in the database) 
                      40 recoverable (usable in Solve/nuSolve) 
                      37 used
  Session fit:       131.004 ps
  UT1 formal error:   24.95 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0307+380              1           1        1
  0340+362              1           1        0
  0418+532              1           1        1
  0529+483              3           3        3
  0613+570              3           3        3
  0642+449              1           1        1
  0716+714              3           3        3
  0718+793              2           2        2
  0738+491              1           1        1
  0955+476              2           2        2
  1030+415              1           1        0
  1039+811              3           3        3
  1053+704              2           2        1
  1128+385              2           2        2
  1144+402              2           2        2
  1324+224              3           3        2
  1417+385              2           2        2
  1418+546              3           3        2
  1504+377              1           1        1
  1803+784              3           3        3
  3C371                 1           1        0
  2353+816              2           2        2
  ------------  ---------  ----------   ------
  Source Total         43          43       37

 * Correlated means included in the database. 
   Please note that the number of recoverable (usable) observations 
   cannot be broken down by source for Intensive solutions.