USNO Analysis Report for Q18239 ($18AUG27XK) 
       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: NYALES20 did not observe.

Number of observations rejected during correlation:    2
    Scan 239-0700, SESHAN25:WETTZ13N, 1849+670, 07:00:13
    Scan 239-0700, SESHAN25:WETTZELL, 1849+670, 07:00:13

Number of observations not usable by the software:     3
    observation 26, SESHAN25:WETTZ13N, 0641+392, 07:30:10, quality codes - S:9, X:0
    observation 53, SESHAN25:WETTZ13N, 2000+472, 07:56:21, quality codes - S:0, X:9
    observation 54, SESHAN25:WETTZELL, 2000+472, 07:56:21, quality codes - S:0, X:9 

Number of observations rejected during analysis:      20
    The WETTZ13N:WETTZELL baseline was not suitable for analysis and all 20 scans were deselected.

Other comments: Clock breaks on WETTZ13N added by vgosDbProcLogs, and are at the start of the experiment, so have no impact. 

Parameterization: 
   8 parameters: 
     UT1 offset 
     atmosphere offset for:
         SESHAN25 WETTZ13N WETTZELL
     clock offset (0), first order term (1), and/or second order term (2) for:
         SESHAN25 (0,1)
     clock break(s) (see next section)

Clock breaks: WETTZ13N   07:00
              WETTZ13N   07:00

Session Statistics 

  Observations:      120 scheduled (from all stations---includes NYALES20)
                      60 scheduled (from available stations---does not include
                                    NYALES20)
                      58 correlated (included in the database) 
                      55 recoverable (usable in Solve/nuSolve) 
                      35 used
  Session fit:        56.025 ps
  UT1 formal error:   18.40 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0718+793              6           3        2
  0823+033              6           3        2
  0955+476              6           3        2
  1053+815              6           3        2
  1156+295              6           3        2
  3C274                 6           3        2
  1300+580              6           3        2
  1726+455              6           3        2
  0613+570              6           3        2
  2000+472              6           3        0
  0641+392              6           3        1
  0729+259              6           3        2
  1040+244              6           3        2
  1053+704              6           3        2
  0016+731              6           3        2
  1015+359              6           3        2
  0821+394              6           3        2
  1030+415              6           3        2
  1504+377              6           3        2
  1849+670              6           1        0
  ------------  ---------  ----------   ------
  Source Total        120          58       35

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