USNO Analysis Report for Q19105 ($19APR15XK) 
       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: A clock break was required on SESHAN25, but the inclusion of the clock break causes
challenges in creating an .eopi file, so SESHAN25 was deselected 

Number of observations rejected during correlation:    0 

Number of observations not usable by the software:     7 

    observation 169, ISHIOKA :WETTZ13N, 1053+815, 07:24:26, quality codes - S:9, X:0 
    observation 176, WETTZ13N:WETTZELL, 1053+815, 07:24:26, quality codes - S:4, X:9 
    observation 186, WETTZ13N:WETTZELL, 1300+580, 07:26:10, quality codes - S:1, X:9 
    observation 206, WETTZ13N:WETTZELL, 2309+454, 07:30:16, quality codes - S:4, X:9 
    observation 216, WETTZ13N:WETTZELL, 0215+015, 07:32:45, quality codes - S:4, X:9 
    observation 276, WETTZ13N:WETTZELL, 0016+731, 07:41:02, quality codes - S:4, X:9 
    observation 386, WETTZ13N:WETTZELL, 1053+815, 07:59:18, quality codes - S:4, X:7 

Number of observations rejected during analysis:     162

    The SESHAN25 station was deselected, accounting for 155 observations. 

    observation   6, WETTZ13N:WETTZELL, 0215+015, 07:00:21, which fits at -3391.8 +/- 23.6 ps 
    observation   9, ISHIOKA :WETTZ13N, 0235+164, 07:01:47, which fits at  -162.4 +/- 71.5 ps 
    observation  16, WETTZ13N:WETTZELL, 0235+164, 07:01:47, which fits at -3006.5 +/- 31.1 ps 
    observation 189, ISHIOKA :WETTZ13N, 2229+695, 07:28:48, which fits at  -233.3 +/- 73.1 ps 
    observation 196, WETTZ13N:WETTZELL, 2229+695, 07:28:48, which fits at   104.3 +/- 25.3 ps 
    observation 222, NYALES20:WETTZ13N, 0235+164, 07:34:19, which fits at  -128.6 +/- 57.7 ps 
    observation 383, NYALES20:WETTZELL, 1053+815, 07:59:18, which fits at   114.7 +/- 26.5 ps 

Other comments: None. 

Parameterization: 
   11 parameters: 
     UT1 offset 
     atmosphere offset for:
         ISHIOKA NYALES20 WETTZ13N WETTZELL
     clock offset (0), first order term (1), and/or second order term (2) for:
         NYALES20 (0,1) WETTZ13N (0,1) WETTZELL (0,1)

Clock breaks: None

Session Statistics 

  Observations:      386 scheduled 
                     386 correlated (included in the database) 
                     366 recoverable (usable in Solve/nuSolve) 
                     217 used
  Session fit:        30.185 ps
  UT1 formal error:    4.67 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731             20          20       11
  0017+200             20          20       12
  0059+581             20          20       12
  0133+476             20          20       12
  0202+319             20          20       12
  0215+015             16          16        7
  0235+164             20          20        9
  0529+483             20          20       12
  0552+398             20          20       12
  0613+570             20          20       12
  0642+449             20          20       12
  0716+714             20          20       12
  0718+793             20          20       12
  0955+476             20          20       12
  1039+811             20          20       12
  1053+704             20          20       12
  1053+815             20          20        8
  1300+580             10          10        5
  1803+784             20          20       12
  2229+695             10          10        4
  2309+454             10          10        5
  ------------  ---------  ----------   ------
  Source Total        386         386      217

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