USNO Analysis Report for W19023 ($19JAN23XW) 
       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:     3 

    observation  98, MK-VLBA :WETTZELL, NGC6251 , 08:28:07, quality codes - S:0, X:9 
    observation  99, PIETOWN :WETTZELL, NGC6251 , 08:28:07, quality codes - S:0, X:9 
    observation 143, MK-VLBA :WETTZELL, NGC6251 , 09:07:02, quality codes - S:0, X:9 

Number of observations rejected during analysis:       1 

    observation  71, MK-VLBA :WETTZELL, 0920+390, 08:09:57, which fits at 2745.9 +/- 56.4 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:      153 scheduled 
                     153 correlated (included in the database) 
                     153 recoverable (usable in Solve/nuSolve) 
                     149 used
  Session fit:        49.4 ps
  UT1 formal error:    5.0 microsec