BKG Analysis Report for q23107 (20230417-q23107)
       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 Dieter Ullrich, Federal Agency for Cartography and Geodesy (BKG),
    Spoolfile source: interactive nuSolve analysis.) 

Problems: None.

Number of observations rejected during correlation:    0

Number of observations not usable by the software:     6

    observation   44,             3C418, NYALE13S:SESHAN25, 07:17:34, quality codes - S:9, X:0
    observation   46,             3C418, NYALES20:SESHAN25, 07:17:34, quality codes - S:9, X:0
    observation   50,             3C371, NYALE13S:SESHAN25, 07:19:07, quality codes - S:0, X:8
    observation   61,          0642+449, NYALE13S:NYALES20, 07:22:56, quality codes - S:4, X:5
    observation   62,          0642+449, NYALE13S:SESHAN25, 07:22:56, quality codes - S:7, X:4
    observation  133,          0642+449, NYALE13S:NYALES20, 07:46:35, quality codes - S:3, X:8

Number of observations rejected during analysis:       5

    observation   67, NYALE13S:NYALES20, 0613+570, 07:24:26, which fits at 544.1 +/- 45.3 ps
    observation   91, NYALE13S:NYALES20, 0109+224, 07:32:38, which fits at 2530.1 +/- 44.7 ps
    observation  145, NYALE13S:NYALES20, 0955+476, 07:51:20, which fits at -1777.6 +/- 44.8 ps
    observation  151, NYALE13S:NYALES20, 0613+570, 07:53:23, which fits at -3676.5 +/- 44.3 ps
    observation  161, NYALES20:WETTZELL, 0229+131, 07:56:25, which fits at -176.2 +/- 48.6 ps

Other comments: 
    The vgosDb BKG analysis output is available at
    ftp://ivs.bkg.bund.de/pub/vlbi/ivsdata/vgosdb_bkg/20230417-q23107.tgz

Parameterization: 
   14 parameters:
     UT1 offset
     atmosphere offset for:
         NYALE13S NYALES20 SESHAN25 WETTZELL
     clock offset (0), first order term (1), and/or second order term (2) for:
         NYALE13S(0,1,2) NYALES20(0,1,2) SESHAN25 (0,1,2)

Clock breaks: None.

-----------------------------------------

Session Statistics 

  Observations:      174 scheduled (included in correlation report)
                     174 correlated (included in database) 
                     168 recoverable (usable in Solve/nuSolve) 
                     163 used 
  Session fit:        43.365 ps
  UT1 formal error:    6.540 microsec

-----------------------------------------


Source Performance 

                    Number of Observations

             Scheduled(*)  Correlated*    Used    


  0059+581              6           6        6
  0109+224              6           6        5
  0119+115             12          12       12
  0133+476              6           6        6
  0202+319             18          18       18
  0229+131             12          12       11
  0235+164             12          12       12
  0602+673              6           6        6
  0613+570             12          12       10
  0642+449             12          12        9
  0718+793              6           6        6
  0800+618              6           6        6
  0955+476             12          12       11
  1039+811             12          12       12
  1803+784             12          12       12
  2229+695              6           6        6
  2318+049              6           6        6
     3C371              6           6        5
     3C418              6           6        4
  ------------  ---------  ----------   ------
  Source Total        174         174      163

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