USNO Analysis Report for Q20018 ($20JAN18XK) 
       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:     4 

    observation   4, WETTZELL:MK-VLBA , 1128+385, 07:35:22, quality codes - S:0, X:0 
    observation  20, WETTZELL:MK-VLBA , 1300+580, 08:08:10, quality codes - S:0, X:0 
    observation  26, WETTZELL:MK-VLBA , 1156+295, 08:21:42, quality codes - S:0, X:0 
    observation  30, WETTZELL:MK-VLBA , NGC6251 , 08:29:04, quality codes - S:0, X:9 

Number of observations rejected during analysis:       0 

Other comments: None. 

Parameterization: 
   5 parameters: 
     UT1 offset 
     atmosphere offset for:
         MK-VLBA WETTZELL
     clock offset (0), first order term (1), and/or second order term (2) for:
         WETTZELL (0,1)

Clock breaks: None

Session Statistics 

  Observations:       30 scheduled 
                      30 correlated (included in the database) 
                      26 recoverable (usable in Solve/nuSolve) 
                      26 used
  Session fit:        51.907 ps
  UT1 formal error:   10.76 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0059+581              1           1        1
  0133+476              2           2        2
  0345+460              2           2        2
  0529+483              2           2        2
  0613+570              2           2        2
  0716+714              1           1        1
  0718+793              1           1        1
  0738+491              1           1        1
  0805+410              1           1        1
  0920+390              1           1        1
  0955+476              1           1        1
  1015+359              2           2        2
  1040+244              3           3        3
  1053+815              1           1        1
  1101+384              1           1        1
  1111+149              1           1        1
  1128+385              2           2        1
  1156+295              1           1        0
  1300+580              1           1        0
  NGC6251               1           1        0
  1803+784              1           1        1
  ------------  ---------  ----------   ------
  Source Total         30          30       26

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