USNO Analysis Report for Q20173 ($20JUN21XK) 
       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, Naval Observatory.
    Spoolfile source: interactive nuSolve analysis.) 

Problems: None. 

Number of observations rejected during correlation:    0 

Number of observations not usable by the software:     2 

Number of observations rejected during analysis:       1 

Other comments: None. 

Parameterization: 
   5 parameters: 
     UT1 offset 
     atmosphere offset for:
         MK-VLBA WETTZELL
     clock offset (0), first order term (1), and/or second order term (2) for:
         MK-VLBA (0,1)

Clock breaks: None

Session Statistics 

  Observations:       28 scheduled 
                      28 correlated (included in the database) 
                      26 recoverable (usable in Solve/nuSolve) 
                      25 used
  Session fit:        52.998 ps
  UT1 formal error:    8.27 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0920+390              1           1        1
  0955+476              1           1        1
  1040+244              1           1        1
  1053+815              1           1        1
  1101+384              1           1        1
  1128+385              1           1        1
  1144+402              2           2        2
  1300+580              2           2        2
  1418+546              2           2        2
  NGC6251               1           1        1
  1636+473              2           2        2
  1732+389              1           1        0
  1746+470              1           1        1
  1758+388              1           1        1
  1803+784              1           1        1
  1800+440              1           1        0
  3C371                 1           1        1
  1929+226              1           1        1
  2013+163              1           1        1
  2113+293              2           2        2
  2144+092              1           1        0
  2214+350              1           1        1
  2229+695              1           1        1
  ------------  ---------  ----------   ------
  Source Total         28          28       25

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