USNO Analysis Report for I19050 ($19FEB19XU) 
       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:     7 

    observation   2, KOKEE   :WETTZELL, 2000+472, 18:34:04, quality codes - S:0, X:9 
    observation   4, KOKEE   :WETTZELL, 2309+454, 18:39:21, quality codes - S:9, X:0 
    observation   9, KOKEE   :WETTZELL, 2309+454, 18:55:27, quality codes - S:9, X:0 
    observation  11, KOKEE   :WETTZELL, 2229+695, 19:03:31, quality codes - S:9, X:0 
    observation  12, KOKEE   :WETTZELL, 0017+200, 19:06:54, quality codes - S:9, X:0 
    observation  17, KOKEE   :WETTZELL, 0017+200, 19:21:50, quality codes - S:9, X:0 
    observation  18, KOKEE   :WETTZELL, 2000+472, 19:25:00, quality codes - S:0, X:9 

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:
         WETTZELL

Clock breaks: None

Session Statistics 

  Observations:       19 scheduled 
                      19 correlated (included in the database) 
                      12 recoverable (usable in Solve/nuSolve) 
                      12 used
  Session fit:        66.419 ps
  UT1 formal error:   34.60 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0017+200              2           2        0
  0059+581              2           2        2
  1053+704              2           2        2
  1128+385              1           1        1
  1803+784              1           1        1
  1849+670              3           3        3
  2000+472              2           2        0
  2229+695              3           3        2
  2309+454              3           3        1
  ------------  ---------  ----------   ------
  Source Total         19          19       12

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