USNO Analysis Report for I18254 ($18SEP11XU) 
       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  6, 0307+380, 18:40:19, quality codes - S:9, X:0
    observation  8, 0749+540, 18:46:01, quality codes - S:0, X:9
    observation 11, 1324+224, 18:55:23, quality codes - S:0, X:9
    observation 13, 1327+504, 19:00:34, quality codes - S:9, X:0
    observation 14, 0749+540, 19:04:44, quality codes - S:0, X:9 
    observation 16, 0151+474, 19:10:22, quality codes - S:9, X:0
    observation 17, 0415+398, 19:14:21, 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:       22 scheduled 
                      22 correlated (included in the database) 
                      15 recoverable (usable in Solve/nuSolve) 
                      15 used
  Session fit:        52.092 ps
  UT1 formal error:   21.45 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0059+581              1           1        1
  0151+474              2           2        1
  0202+319              3           3        3
  0307+380              1           1        0
  0415+398              1           1        0
  0529+483              2           2        2
  0613+570              1           1        1
  0716+714              2           2        2
  0749+540              2           2        0
  1030+415              1           1        1
  1053+704              1           1        1
  1053+815              1           1        1
  1128+385              1           1        1
  1324+224              1           1        0
  1327+504              1           1        0
  1803+784              1           1        1
  ------------  ---------  ----------   ------
  Source Total         22          22       15

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