NASA Analysis Report for Q21212 ($21JUL31XK) 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 Karen Baver, Goddard Space Flight Center VLBI Analysis Center. Spoolfile source: interactive solve/nuSolve analysis.) Problems: A tracking error caused three observations to fail, as noted below. Number of observations rejected during correlation: 0 Number of observations not usable by the software: 4 The following observation had low SNR value(s): observation 8, ISHIOKA :WETTZELL, 3C371 , 07:38:32, quality code X: 9 S: 0, fringe code X: ' ' S: ' ' The correlator report noted that the following three observations failed due to a tracking error at ISHIOKA: observation 40, ISHIOKA :WETTZELL, 1144+402, 08:18:58, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 41, ISHIOKA :WETTZELL, 1128+385, 08:19:57, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 42, ISHIOKA :WETTZELL, 1039+811, 08:21:06, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' Number of observations rejected during analysis: 5 observation 16, ISHIOKA :WETTZELL, 0805+410, 07:48:25, which fits at -3886.0 +/- 57.5 ps observation 18, ISHIOKA :WETTZELL, 0823+033, 07:52:06, which fits at 541.1 +/- 57.6 ps observation 21, ISHIOKA :WETTZELL, 0529+483, 07:55:24, which fits at 326.7 +/- 75.1 ps observation 29, ISHIOKA :WETTZELL, 0059+581, 08:04:34, which fits at -576.2 +/- 56.6 ps observation 44, ISHIOKA :WETTZELL, 0059+581, 08:23:25, which fits at -1375.1 +/- 55.3 ps Other comments: None Parameterization: 6 parameters: UT1 offset atmosphere offset for: ISHIOKA WETTZELL clock offset, first order term, and second order term for: WETTZELL Clock breaks: None Session Statistics Observations: 48 scheduled 48 correlated (included in the database) 44 recoverable (usable in Solve/nuSolve) 39 used Session fit: 56.727 ps UT1 formal error: 13.28 microsec Source Performance Number of Observations Scheduled Correlated* Used 0016+731 3 3 3 0059+581 3 3 1 0529+483 2 2 1 0613+570 3 3 3 0642+449 3 3 3 0805+410 3 3 2 0814+425 3 3 3 0823+033 1 1 0 0955+476 3 3 3 1039+811 3 3 2 1128+385 3 3 2 1144+402 3 3 2 1803+784 3 3 3 3C371 3 3 2 2000+472 3 3 3 3C418 3 3 3 2229+695 3 3 3 ------------ --------- ---------- ------ Source Total 48 48 39 * Correlated means included in the database. Please note that the number of recoverable (usable) observations cannot be broken down by source for Intensive solutions.