IVS Analysis Report for I19031 ($19JAN31XU) 
       This report is the official IVS analysis report that corresponds to 
       the database maintained by the IVS Data Centers for this session.  
   (Analyzed by Karen Baver, Goddard Space Flight Center VLBI Analysis Center.
    Spoolfile source: interactive solve/nuSolve analysis.) 

Problems: None. 

Number of observations rejected during correlation:    1 

    WETTZ13N:WETTZELL, 2209+236, 19:16:53 --- not in data base: probable G- or H- code in one or both bands

Number of observations not usable by the software:    11 

    observation   16, KOKEE   :WETTZ13N, 0016+731, 18:41:45, quality code X-band: 0 S-band: 0 
    observation   17, KOKEE   :WETTZELL, 0016+731, 18:41:45, quality code X-band: 0 S-band: 0 
    observation   43, KOKEE   :SVETLOE , NGC6251 , 19:00:34, quality code X-band: 9 S-band: 0 
    observation   49, KOKEE   :SVETLOE , 2229+695, 19:08:10, quality code X-band: 0 S-band: 8 
    observation   55, KOKEE   :SVETLOE , 2319+317, 19:12:41, quality code X-band: 9 S-band: 0 
    observation   56, KOKEE   :WETTZ13N, 2319+317, 19:12:41, quality code X-band: 0 S-band: 9 
    observation   61, KOKEE   :WETTZ13N, 2209+236, 19:16:53, quality code X-band: 0 S-band: 9 
    observation   62, KOKEE   :WETTZELL, 2209+236, 19:16:53, quality code X-band: 0 S-band: 9 
    observation   70, KOKEE   :SVETLOE , 0016+731, 19:24:35, quality code X-band: 0 S-band: 0 
    observation   71, KOKEE   :WETTZ13N, 0016+731, 19:24:35, quality code X-band: 0 S-band: 0 
    observation   72, KOKEE   :WETTZELL, 0016+731, 19:24:35, quality code X-band: 0 S-band: 0 

Number of observations rejected during analysis:      22 
   
  14 WETTZ13N:WETTZELL observations were deselected.

  In addition, eight observations were rejected:

    observation   10, KOKEE   :SVETLOE , 1746+470, 18:38:44, which fits at    -1369.6 +/-      61.1 ps 
    observation   13, SVETLOE :WETTZ13N, 1746+470, 18:38:44, which fits at    -3355.1 +/-      94.4 ps 
    observation   14, SVETLOE :WETTZELL, 1746+470, 18:38:44, which fits at     1406.1 +/-     281.2 ps 
    observation   19, KOKEE   :SVETLOE , 1803+784, 18:43:14, which fits at    -2677.0 +/-      17.9 ps 
    observation   22, SVETLOE :WETTZ13N, 1803+784, 18:43:14, which fits at    -2164.4 +/-      90.1 ps 
    observation   23, SVETLOE :WETTZELL, 1803+784, 18:43:14, which fits at    -2154.7 +/-     279.6 ps 
    observation   32, SVETLOE :WETTZELL, 2113+293, 18:49:57, which fits at    -4680.2 +/-     279.9 ps 
    observation   58, SVETLOE :WETTZ13N, 2319+317, 19:12:41, which fits at    -3103.9 +/-      99.5 ps 

Other comments: None. 

Parameterization: 
   14 parameters: 
     UT1 offset 
     atmosphere offset for:
         KOKEE SVETLOE WETTZ13N WETTZELL
     clock offset, first order term, and second order term for:
         SVETLOE WETTZ13N WETTZELL

Clock breaks: None

Session Statistics 

  Observations:       76 scheduled 
                      75 correlated (included in the database) 
                      64 recoverable (usable in Solve/nuSolve) 
                      42 used
  Session fit:        79.656 ps
  UT1 formal error:   24.16 microsec 

Source Performance 

                    Number of Observations

                Scheduled  Correlated*    Used    

  0016+731              9           9        2
  1128+385              6           6        5
  1300+580              3           3        2
  1418+546             12          12       10
  NGC6251               3           3        2
  1746+470              6           6        2
  1803+784              6           6        2
  3C371                 3           3        2
  2113+293              6           6        4
  2141+175              3           3        2
  2209+236              3           2        0
  2229+695              9           9        6
  2319+317              6           6        2
  2356+385              1           1        1
  ------------  ---------  ----------   ------
  Source Total         76          75       42

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