USNO Analysis Report for I20048 ($20FEB17XU) 
       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:     9 

    observation   1, MK-VLBA :WETTZELL, 1418+546, 18:30:20, quality codes - S:0, X:9 
    observation   2, MK-VLBA :WETTZELL, 2307+106, 18:33:12, quality codes - S:9, X:0 
    observation   5, MK-VLBA :WETTZELL, 2209+236, 18:38:09, quality codes - S:0, X:0 
    observation  10, MK-VLBA :WETTZELL, 1053+815, 18:48:24, quality codes - S:9, X:0 
    observation  12, MK-VLBA :WETTZELL, 2214+350, 18:53:18, quality codes - S:9, X:0 
    observation  17, MK-VLBA :WETTZELL, 1823+689, 19:05:06, quality codes - S:9, X:0 
    observation  20, MK-VLBA :WETTZELL, 0133+476, 19:12:34, quality codes - S:0, X:0 
    observation  22, MK-VLBA :WETTZELL, NGC6251 , 19:16:06, quality codes - S:0, X:9 
    observation  23, MK-VLBA :WETTZELL, 2214+350, 19:18:10, quality codes - S:9, X:0 

Number of observations rejected during analysis:       2 

    observation   7, MK-VLBA :WETTZELL, 2229+695, 18:41:11, which fits at 1445.8 +/- 554.8 ps 
    observation  16, MK-VLBA :WETTZELL, 1636+473, 19:02:53, which fits at  869.1 +/- 344.2 ps 

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:       28 scheduled 
                      28 correlated (included in the database) 
                      19 recoverable (usable in Solve/nuSolve) 
                      17 used
  Session fit:        65.758 ps
  UT1 formal error:   30.94 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0059+581              2           2        2
  0133+476              1           1        0
  0718+793              2           2        2
  1053+815              1           1        0
  1226+373              1           1        1
  1300+580              2           2        2
  1308+328              1           1        1
  1342+662              1           1        1
  1418+546              1           1        0
  1520+437              1           1        1
  NGC6251               1           1        0
  1636+473              2           2        1
  1746+470              2           2        2
  1803+784              1           1        1
  1823+689              1           1        0
  2209+236              1           1        0
  2214+350              2           2        0
  2229+695              1           1        0
  2307+106              1           1        0
  2319+317              2           2        2
  ------------  ---------  ----------   ------
  Source Total         28          28       17

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