USNO Analysis Report for I20112 ($20APR21XU) 
       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   7, KOKEE   :WETTZELL, NGC6251 , 18:52:36, quality codes - S:0, X:0 
    observation   8, KOKEE   :WETTZELL, 0415+398, 18:56:57, quality codes - S:9, X:0 

Number of observations rejected during analysis:       2 

    observation   5, KOKEE   :WETTZELL, 1758+388, 18:44:31, which fits at -278.7 +/- 66.4 ps 
    observation  12, KOKEE   :WETTZELL, 1639+230, 19:11:33, which fits at -182.8 +/- 57.1 ps 

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) 
                      14 used
  Session fit:        22.794 ps
  UT1 formal error:    7.21 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0059+581              1           1        1
  0133+476              1           1        1
  0322+222              2           2        2
  0415+398              1           1        0
  0529+483              1           1        1
  0716+714              2           2        2
  1053+815              1           1        1
  NGC6251               1           1        0
  1636+473              1           1        1
  NRAO512               1           1        1
  1639+230              1           1        0
  1732+389              1           1        1
  1758+388              1           1        0
  3C371                 1           1        1
  2229+695              1           1        1
  ------------  ---------  ----------   ------
  Source Total         18          18       14

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