USNO Analysis Report for Q21129 ($21MAY09XK) 
       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 Nicole Geiger, 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   15, WETTZELL:MK-VLBA , 0821+394, 07:44:25, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation   36, WETTZELL:MK-VLBA , 0821+394, 08:09:05, quality code X: 0 S: 9, fringe code X: ' ' S: ' ' 
    observation   46, WETTZELL:MK-VLBA , 2000+472, 08:21:31, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' 

Number of observations rejected during analysis:       0 

Other comments: None. 

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

Clock breaks: None

Session Statistics 

  Observations:       54 scheduled 
                      54 correlated (included in the database) 
                      51 recoverable (usable in Solve/nuSolve) 
                      51 used
  Session fit:        44.289 ps
  UT1 formal error:    4.96 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0613+570              2           2        2
  0642+449              2           2        2
  0716+714              3           3        3
  0738+491              3           3        3
  0805+410              3           3        3
  0814+425              3           3        3
  0821+394              2           2        0
  0955+476              2           2        2
  1039+811              3           3        3
  1053+704              2           2        2
  1418+546              2           2        2
  1504+377              1           1        1
  DA426                 2           2        2
  1746+470              3           3        3
  1749+096              2           2        2
  1751+288              3           3        3
  1758+388              1           1        1
  1803+784              3           3        3
  1806+456              3           3        3
  3C371                 3           3        3
  1846+322              2           2        2
  1849+670              3           3        3
  2000+472              1           1        0
  ------------  ---------  ----------   ------
  Source Total         54          54       51

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