USNO Analysis Report for Q20230 ($20AUG17XK) 
       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:     9 

    observation   5, NYALES20:SESHAN25, 0759+183, 07:04:58, quality codes - S:9, X:0 
    observation  13, NYALES20:SESHAN25, 0641+392, 07:14:32, quality codes - S:9, X:0 
    observation  15, NYALES20:SESHAN25, 1929+226, 07:21:06, quality codes - S:0, X:0 
    observation  20, NYALES20:SESHAN25, 2353+816, 07:27:22, quality codes - S:9, X:0 
    observation  26, NYALES20:SESHAN25, 0759+183, 07:38:34, quality codes - S:9, X:0 
    observation  34, NYALES20:SESHAN25, 1732+389, 07:52:28, quality codes - S:9, X:0 
    observation  35, NYALES20:SESHAN25, 1726+455, 07:53:35, quality codes - S:8, X:0 
    observation  36, NYALES20:SESHAN25, 1806+456, 07:54:47, quality codes - S:9, X:0 
    observation  37, NYALES20:SESHAN25, 1800+440, 07:55:52, quality codes - S:0, X:9 

Number of observations rejected during analysis:       0 

Other comments: None. 

Parameterization: 
   5 parameters: 
     UT1 offset 
     atmosphere offset for:
         NYALES20 SESHAN25
     clock offset (0), first order term (1), and/or second order term (2) for:
         SESHAN25 (0,1)

Clock breaks: None

Session Statistics 

  Observations:       39 scheduled 
                      39 correlated (included in the database) 
                      30 recoverable (usable in Solve/nuSolve) 
                      30 used
  Session fit:        48.682 ps
  UT1 formal error:   12.31 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              1           1        1
  0552+398              1           1        1
  0613+570              2           2        2
  0641+392              1           1        0
  0642+449              1           1        1
  0736+017              1           1        1
  0738+491              2           2        2
  0748+126              2           2        2
  0759+183              2           2        0
  0805+410              2           2        2
  0808+019              2           2        2
  0814+425              2           2        2
  0823+033              2           2        2
  0827+243              2           2        2
  OJ287                 2           2        2
  NRAO512               1           1        1
  1726+455              1           1        0
  1732+389              1           1        0
  1746+470              1           1        1
  1751+288              1           1        1
  1800+440              1           1        0
  1806+456              1           1        0
  3C371                 1           1        1
  1849+670              1           1        1
  1929+226              1           1        0
  2000+472              1           1        1
  3C418                 1           1        1
  2229+695              1           1        1
  2353+816              1           1        0
  ------------  ---------  ----------   ------
  Source Total         39          39       30

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