IVS Analysis Report for V21077 ($21MAR18VI) 
       This report is the official IVS analysis report that corresponds to 
       the database maintained by the IVS Data Centers for this session.  
   (Analyzed by Sergei Bolotin, NVI, Inc. / NASA Goddard Space Flight Center.
    Spoolfile source: interactive solve/nuSolve analysis.) 

Problems: None. 

Number of observations rejected during correlation:    1 

Number of observations not usable by the software:     3 

    observation    1, KOKEE12M:WETTZ13S, 2319+317, 18:31:31, quality code X: 0 S: -, fringe code X: ' ' S: '-' 
    observation    2, KOKEE12M:WETTZ13S, 0054+161, 18:32:56, quality code X: 0 S: -, fringe code X: ' ' S: '-' 
    observation    3, KOKEE12M:WETTZ13S, 1636+473, 18:34:52, quality code X: 0 S: -, fringe code X: ' ' S: '-' 

Number of observations rejected during analysis:       3 

    observation    4, KOKEE12M:WETTZ13S, 0059+581, 18:36:28, which fits at     -128.6 +/-      28.3 ps 
    observation   15, KOKEE12M:WETTZ13S, 0202+319, 18:53:59, which fits at     -126.5 +/-      27.0 ps 
    observation   20, KOKEE12M:WETTZ13S, NGC6251 , 19:02:10, which fits at     -329.9 +/-      30.0 ps 

Other comments: None. 

Parameterization: 
   6 parameters: 
     UT1 offset 
     atmosphere offset for:
         KOKEE12M WETTZ13S
     clock offset, first order term, and second order term for:
         WETTZ13S

Clock breaks: None

Session Statistics 

  Observations:       35 scheduled 
                      34 correlated (included in the database) 
                      31 recoverable (usable in Solve/nuSolve) 
                      28 used
  Session fit:        24.068 ps
  UT1 formal error:    5.10 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              2           2        2
  0054+161              1           1        0
  0059+581              2           2        1
  0109+224              2           2        2
  0133+476              3           3        3
  0151+474              1           1        1
  0202+319              3           3        2
  0718+793              1           0        0
  1441+252              2           2        2
  1520+319              1           1        1
  1636+473              1           1        0
  NGC6251               1           1        0
  NRAO512               1           1        1
  1726+455              3           3        3
  1746+470              2           2        2
  1803+784              1           1        1
  1823+689              1           1        1
  1849+670              1           1        1
  2309+454              4           4        4
  2319+317              1           1        0
  2356+385              1           1        1
  ------------  ---------  ----------   ------
  Source Total         35          34       28

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