IVS Analysis Report for I20286 ($20OCT12XU) 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: The session was very noisy. GSFC usually estimates a second order clock term, but this parameter was omitted from the end solution to try to work with the limited number of data. But although a normal session fit was achieved, the UT1 formal error was still abnormally high (70.51 microseconds). The MK-VLBA log file was not available. Number of observations rejected during correlation: 0 Number of observations not usable by the software: 13 observation 1, MK-VLBA :WETTZELL, 0738+491, 18:30:20, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' observation 2, MK-VLBA :WETTZELL, 1520+437, 18:33:16, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' observation 6, MK-VLBA :WETTZELL, 1636+473, 18:41:39, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 7, MK-VLBA :WETTZELL, 1823+689, 18:44:15, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 11, MK-VLBA :WETTZELL, 1342+662, 18:54:02, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' observation 12, MK-VLBA :WETTZELL, 0716+714, 18:56:26, quality code X: 9 S: 8, fringe code X: ' ' S: 'H' observation 14, MK-VLBA :WETTZELL, NRAO512 , 18:59:52, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 15, MK-VLBA :WETTZELL, NGC6251 , 19:01:32, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' observation 17, MK-VLBA :WETTZELL, 0714+457, 19:07:18, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' observation 18, MK-VLBA :WETTZELL, DA426 , 19:10:51, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 20, MK-VLBA :WETTZELL, 0613+570, 19:15:55, quality code X: 9 S: 7, fringe code X: ' ' S: 'H' observation 25, MK-VLBA :WETTZELL, 1639+230, 19:26:44, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 26, MK-VLBA :WETTZELL, 0749+540, 19:29:04, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' Number of observations rejected during analysis: 6 observation 3, MK-VLBA :WETTZELL, 1803+784, 18:35:25, which fits at 6547.4 +/- 92.3 ps observation 5, MK-VLBA :WETTZELL, 0718+793, 18:39:38, which fits at 872.1 +/- 127.0 ps observation 8, MK-VLBA :WETTZELL, 0955+476, 18:48:13, which fits at -4016.5 +/- 94.1 ps observation 9, MK-VLBA :WETTZELL, 0613+570, 18:50:03, which fits at 5442.1 +/- 93.5 ps observation 21, MK-VLBA :WETTZELL, 1520+437, 19:18:29, which fits at -4104.1 +/- 107.7 ps observation 23, MK-VLBA :WETTZELL, 3C371 , 19:23:50, which fits at -1113.0 +/- 94.5 ps 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: WETTZELL (0,1) Clock breaks: None Session Statistics Observations: 26 scheduled 26 correlated (included in the database) 13 recoverable (usable in Solve/nuSolve) 7 used Session fit: 55.075 ps UT1 formal error: 70.51 microsec Source Performance Number of Observations Scheduled Correlated* Used 0613+570 2 2 0 0641+392 1 1 1 0714+457 1 1 0 0716+714 1 1 0 0718+793 1 1 0 0738+491 1 1 0 0749+540 1 1 0 0800+618 1 1 1 0955+476 1 1 0 1053+815 1 1 1 1300+580 2 2 2 1342+662 1 1 0 1418+546 1 1 1 1520+437 2 2 0 NGC6251 1 1 0 1636+473 1 1 0 NRAO512 2 2 1 1639+230 1 1 0 DA426 1 1 0 1803+784 1 1 0 3C371 1 1 0 1823+689 1 1 0 ------------ --------- ---------- ------ Source Total 26 26 7 * Correlated means included in the database. Please note that the number of recoverable (usable) observations cannot be broken down by source for Intensive solutions.