USNO Analysis Report for I18271 ($18SEP28XU) 
       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:    2

    scan 271-1938 of source 0307+380 didn't correlate
    scan 271-1942 of source 0529+483 didn't correlate

Number of observations not usable by the software:     4

    observation  2, 0415+398, 18:48:22, quality codes - S:9, X:0
    observation  8, 0749+540, 19:08:22, quality codes - S:9, X:0  
    observation 13, 1300+580, 19:27:07, quality codes - S:9, X:0
    observation 14, 1441+252, 19:31:14, 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:       17 scheduled 
                      15 correlated (included in the database) 
                      11 recoverable (usable in Solve/nuSolve) 
                      11 used
  Session fit:        60.529 ps
  UT1 formal error:   34.49 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0307+380              2           1        1
  0415+398              1           1        0
  0529+483              1           0        0
  0613+570              1           1        1
  0716+714              1           1        1
  0738+491              2           2        2
  0749+540              1           1        0
  0955+476              1           1        1
  1144+402              1           1        1
  1300+580              1           1        0
  1324+224              1           1        1
  1418+546              1           1        1
  1441+252              1           1        0
  1803+784              1           1        1
  ------------  ---------  ----------   ------
  Source Total         17          15       11

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