USNO Analysis Report for I21138 ($21MAY18XU) 
       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 Nicole Geiger, US Naval Observatory.
    Spoolfile source: interactive nuSolve analysis.) 

Problems: None. 

Number of observations rejected during correlation:    0 

Number of observations not usable by the software:     4 

    observation    7, KOKEE   :WETTZELL, 1053+815, 18:46:15, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation    9, KOKEE   :WETTZELL, 0340+362, 18:52:08, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation   12, KOKEE   :WETTZELL, NGC6251 , 18:59:54, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' 
    observation   24, KOKEE   :WETTZELL, 0613+570, 19:28:23, quality code X: 9 S: 9, fringe code X: 'G' S: ' ' 

Number of observations rejected during analysis:       0 

Other comments: None. 

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

Clock breaks: None

Session Statistics 

  Observations:       24 scheduled 
                      24 correlated (included in the database) 
                      20 recoverable (usable in Solve/nuSolve) 
                      20 used
  Session fit:        37.172 ps
  UT1 formal error:   13.92 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0059+581              1           1        1
  0133+476              1           1        1
  0340+362              1           1        0
  0415+398              2           2        2
  0515+208              1           1        1
  0529+483              2           2        2
  0552+398              2           2        2
  0602+673              1           1        1
  0613+570              3           3        2
  0716+714              1           1        1
  1053+815              1           1        0
  NGC6251               1           1        0
  1758+388              1           1        1
  1803+784              2           2        2
  3C371                 1           1        1
  2229+695              2           2        2
  ------------  ---------  ----------   ------
  Source Total         24          24       20

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