USNO Analysis Report for W19052 ($19FEB21XW) 
       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:    3 

    MK-VLBA :PIETOWN , 0738+491, 07:21:52 --- not in data base: probable G- or H- code in one or both bands
    MK-VLBA :PIETOWN , 0800+618, 07:50:35 --- not in data base: probable G- or H- code in one or both bands
    MK-VLBA :WETTZ13N, 0955+476, 08:25:40 --- not in data base: probable G- or H- code in one or both bands

Number of observations not usable by the software:     6 

    observation   8, MK-VLBA :WETTZELL, 3C274   , 07:17:26, quality codes - S:0, X:9 
    observation  50, MK-VLBA :WETTZ13N, 1418+546, 07:35:58, quality codes - S:9, X:0 
    observation 122, MK-VLBA :WETTZELL, 0345+460, 08:15:08, quality codes - S:9, X:0 
    observation 182, MK-VLBA :WETTZELL, 0345+460, 08:42:09, quality codes - S:8, X:0 
    observation 227, MK-VLBA :WETTZELL, NGC6251 , 09:10:33, quality codes - S:0, X:9 
    observation 228, PIETOWN :WETTZELL, NGC6251 , 09:10:33, quality codes - S:0, X:9 

Number of observations rejected during analysis:      30 

    The WETTZ13N:WETTZELL baseline was deselected, accounting for 26 observation.

    observation  17, MK-VLBA :WETTZELL, 0738+491, 07:21:52, which fits at 2871.6 +/- 53.9 ps 
    observation  80, MK-VLBA :WETTZ13N, 0059+581, 07:53:55, which fits at -182.8 +/- 43.2 ps 
    observation  81, MK-VLBA :WETTZELL, 0059+581, 07:53:55, which fits at -183.3 +/- 44.7 ps 
    observation 149, MK-VLBA :WETTZELL, 0749+540, 08:27:18, which fits at 2733.6 +/- 67.0 ps 

Other comments: None. 

Parameterization: 
   11 parameters: 
     UT1 offset 
     atmosphere offset for:
         MK-VLBA PIETOWN WETTZ13N WETTZELL
     clock offset (0), first order term (1), and/or second order term (2) for:
         PIETOWN (0,1) WETTZ13N (0,1) WETTZELL (0,1)

Clock breaks: None

Session Statistics 

  Observations:      237 scheduled 
                     234 correlated (included in the database) 
                     228 recoverable (usable in Solve/nuSolve) 
                     198 used
  Session fit:        50.218 ps
  UT1 formal error:    4.08 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              6           6        5
  0059+581             12          12        8
  0345+460              9           9        7
  0415+398              9           9        9
  0529+483             18          18       15
  0613+570             12          12       10
  0716+714             18          18       15
  0718+793              3           3        3
  0738+491              6           5        4
  0749+540              3           3        2
  0800+618              6           5        5
  0955+476             24          23       19
  1015+359              3           3        3
  1053+815              3           3        3
  1101+384              3           3        3
  1128+385             12          12       10
  1144+402             18          18       15
  1156+295             24          24       20
  1212+171              3           3        3
  3C274                 3           3        2
  1300+580             12          12       12
  1308+328              3           3        3
  1324+224              9           9        9
  1418+546              6           6        4
  1520+437              3           3        3
  NGC6251               3           3        1
  1803+784              6           6        5
  ------------  ---------  ----------   ------
  Source Total        237         234      198

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