USNO Analysis Report for Q21262 ($21SEP19XK) 
       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: ISHIOKA did not participate due to antenna EL motor trouble. 

Number of observations rejected during correlation:    0 

Number of observations not usable by the software:     4 

    observation    1, WETTZELL:MK-VLBA , 0221+067, 07:30:27, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' 
    observation   20, WETTZELL:MK-VLBA , 0322+222, 07:54:32, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' 
    observation   33, WETTZELL:MK-VLBA , 1732+389, 08:10:04, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' 
    observation   38, WETTZELL:MK-VLBA , 1842+681, 08:16:08, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' 

Number of observations rejected during analysis:       0 

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

Clock breaks: None

Session Statistics 

  Observations:      117 scheduled (from all stations---includes ISHIOKA)
                      49 scheduled (from available stations---does not include
                                    ISHIOKA)
                      49 correlated (included in the database) 
                      45 recoverable (usable in Solve/nuSolve) 
                      45 used
  Session fit:        30.142 ps
  UT1 formal error:    4.48 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              9           3        3
  0059+581              7           3        3
  0133+476              7           3        3
  0202+319              3           3        3
  0221+067              1           1        0
  0235+164              2           2        2
  0322+222              1           1        0
  0340+362              1           1        1
  1039+811              6           2        2
  DA426                 6           2        2
  1726+455              1           1        1
  1732+389              4           2        1
  1746+470              9           3        3
  1803+784              9           3        3
  1806+456              6           2        2
  3C371                 5           3        3
  1842+681              3           1        0
  1849+670              9           3        3
  1851+488              6           2        2
  2000+472              4           2        2
  3C418                 6           2        2
  2229+695              9           3        3
  2353+816              3           1        1
  ------------  ---------  ----------   ------
  Source Total        117          49       45

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