USNO Analysis Report for I19172 ($19JUN21XU) 
       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 Christopher Dieck, 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:     2 

    observation   5, KOKEE   :WETTZELL, 2309+454, 19:01:42, quality codes - S:9, X:0 
    observation  11, KOKEE   :WETTZELL, 2309+454, 19:19:01, quality codes - S:9, X:0 

Number of observations rejected during analysis:       0 

Other comments: None. 

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

Clock breaks: None

Session Statistics 

  Observations:       18 scheduled 
                      18 correlated (included in the database) 
                      16 recoverable (usable in Solve/nuSolve) 
                      16 used
  Session fit:        41.195 ps
  UT1 formal error:   12.21 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0059+581              2           2        2
  0529+483              2           2        2
  0716+714              1           1        1
  0743+277              1           1        1
  0805+410              1           1        1
  1803+784              1           1        1
  1849+670              2           2        2
  2000+472              1           1        1
  2113+293              3           3        3
  2229+695              2           2        2
  2309+454              2           2        0
  ------------  ---------  ----------   ------
  Source Total         18          18       16

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