USNO Analysis Report for I21172 ($21JUN21XU) 
       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:     5 

    observation    3, KOKEE   :WETTZELL, 3C371   , 18:34:14, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation    6, KOKEE   :WETTZELL, 0641+392, 18:40:01, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation   13, KOKEE   :WETTZELL, 0602+673, 18:59:01, quality code X: 9 S: 9, fringe code X: 'G' S: ' ' 
    observation   18, KOKEE   :WETTZELL, 0759+183, 19:10:44, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' 
    observation   24, KOKEE   :WETTZELL, 0759+183, 19:26:11, quality code X: 9 S: 0, fringe code X: ' ' 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:       25 scheduled 
                      25 correlated (included in the database) 
                      20 recoverable (usable in Solve/nuSolve) 
                      20 used
  Session fit:        45.281 ps
  UT1 formal error:   10.11 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0059+581              1           1        1
  0529+483              3           3        3
  0552+398              3           3        3
  0602+673              1           1        0
  0613+570              1           1        1
  0641+392              1           1        0
  0716+714              1           1        1
  0738+491              1           1        1
  0748+126              1           1        1
  0759+183              2           2        0
  0805+410              1           1        1
  1053+815              1           1        1
  NGC6251               1           1        1
  1803+784              1           1        1
  3C371                 1           1        0
  2113+293              3           3        3
  2229+695              1           1        1
  ------------  ---------  ----------   ------
  Source Total         25          25       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.