USNO Analysis Report for I18270 ($18SEP27XU) 
       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:     6

    observation  2, 0415+398, 18:33:22, quality codes - S:9, X:0
    observation  7, 0307+380, 18:52:03, quality codes - S:0, X:9
    observation 10, 0749+540, 19:04:27, quality codes - S:9, X:0
    observation 11, 0307+380, 19:08:36, quality codes - S:0, X:9
    observation 12, 1504+377, 19:13:23, quality codes - S:9, X:0
    observation 14, 0749+540, 19:21:03, 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:       16 scheduled 
                      16 correlated (included in the database) 
                      10 recoverable (usable in Solve/nuSolve) 
                      10 used
  Session fit:        32.413 ps
  UT1 formal error:   18.57 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0307+380              3           3        1
  0415+398              1           1        0
  0529+483              1           1        1
  0613+570              1           1        1
  0716+714              1           1        1
  0749+540              2           2        0
  1053+704              2           2        2
  1128+385              1           1        1
  1324+224              1           1        1
  1504+377              2           2        1
  1803+784              1           1        1
  ------------  ---------  ----------   ------
  Source Total         16          16       10

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