USNO Analysis Report for W19199 ($19JUL18XW) 
       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 

Number of observations not usable by the software:    13 

    observation  11, MK-VLBA :WETTZELL, 1800+440, 07:22:20, quality codes - S:0, X:0 
    observation  30, PIETOWN :WETTZELL, NGC6251 , 07:33:47, quality codes - S:0, X:9 
    observation  54, PIETOWN :WETTZELL, 1053+815, 07:52:03, quality codes - S:9, X:0 
    observation  62, MK-VLBA :WETTZELL, 2307+106, 07:58:16, quality codes - S:0, X:0 
    observation  63, PIETOWN :WETTZELL, 2307+106, 07:58:16, quality codes - S:9, X:0 
    observation  91, PIETOWN :WETTZELL, 2214+350, 08:22:26, quality codes - S:9, X:0 
    observation  93, MK-VLBA :WETTZELL, 2307+106, 08:24:39, quality codes - S:9, X:0 
    observation  94, PIETOWN :WETTZELL, 2307+106, 08:24:39, quality codes - S:9, X:0 
    observation 103, PIETOWN :WETTZELL, 1053+815, 08:31:32, quality codes - S:9, X:0 
    observation 108, MK-VLBA :WETTZELL, 1520+437, 08:37:54, quality codes - S:9, X:0 
    observation 126, MK-VLBA :WETTZELL, 2214+350, 08:50:07, quality codes - S:9, X:0 
    observation 127, PIETOWN :WETTZELL, 2214+350, 08:50:07, quality codes - S:9, X:0 
    observation 141, MK-VLBA :WETTZELL, 1520+437, 09:04:46, quality codes - S:9, X:0 

Number of observations rejected during analysis:       2 

    observation  14, MK-VLBA :WETTZELL, 3C371   , 07:24:01, has a G-code on S-band
    observation  27, PIETOWN :WETTZELL, 2214+350, 07:31:35, which fits at -281.3 +/- 69.5 ps 

Other comments: None. 

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

Clock breaks: None

Session Statistics 

  Observations:      159 scheduled 
                     157 correlated (included in the database) 
                     144 recoverable (usable in Solve/nuSolve) 
                     142 used
  Session fit:        53.890 ps
  UT1 formal error:    6.20 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0059+581             12          12       12
  0718+793              9           9        9
  1053+815              9           9        7
  1300+580             12          12       12
  1342+662              9           9        9
  1418+546              6           6        6
  1520+437              6           6        4
  NGC6251               3           3        2
  1636+473             15          15       15
  1746+470              3           3        3
  1803+784              3           3        3
  1800+440              3           3        2
  3C371                 9           9        8
  1823+689              3           3        3
  2113+293              9           9        9
  2141+175              6           6        6
  2209+236              6           6        6
  2214+350             12          10        6
  2229+695              9           9        9
  2307+106              6           6        2
  2319+317              6           6        6
  2356+385              3           3        3
  ------------  ---------  ----------   ------
  Source Total        159         157      142

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