IVS Analysis Report for Q20314 ($20NOV09XK) 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 most serious problem is that NYALES20 did not observe due to elevation encoder problems. The "other comments" section below lists additional problems. Number of observations rejected during correlation: 14 The following observations were missed due to the unlocking of SESHAN25's frequency divider. two observations of 0133+476 at 07:27:25 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL two observations of 0059+581 at 07:28:41 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL two observations of 0016+731 at 07:29:55 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL two observations of 2353+816 at 07:31:03 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL two observations of 2229+695 at 07:32:18 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL two observations of 1849+670 at 07:33:42 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL two observations of 1803+784 at 07:36:16 by SESHAN25-WETTZ13N and SESHAN25-WETTZELL An interim pair of observations of 3C371 at 07:35:01 were correlated but not usable, as listed below. Number of observations not usable by the software: 4 observation 39, WETTZ13N:WETTZELL, 1324+224, 07:19:55, quality code X: 8 S: 4, fringe code X: ' ' S: ' ' observation 48, WETTZ13N:WETTZELL, 1128+385, 07:23:44, quality code X: 8 S: 4, fringe code X: ' ' S: ' ' observation 58, SESHAN25:WETTZ13N, 3C371 , 07:35:01, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' observation 59, SESHAN25:WETTZELL, 3C371 , 07:35:01, quality code X: 0 S: 0, fringe code X: ' ' S: ' ' Number of observations rejected during analysis: 10 observation 27, WETTZ13N:WETTZELL, 1039+811, 07:10:27, which fits at 3044.3 +/- 57.9 ps observation 30, WETTZ13N:WETTZELL, 0718+793, 07:11:39, which fits at 1019.0 +/- 58.1 ps observation 42, WETTZ13N:WETTZELL, 1308+328, 07:21:11, which fits at -14612.1 +/- 58.3 ps observation 47, SESHAN25:WETTZELL, 1128+385, 07:23:44, which fits at 165.5 +/- 44.0 ps observation 50, SESHAN25:WETTZELL, 1156+295, 07:24:53, which fits at 194.7 +/- 46.7 ps observation 73, WETTZ13N:WETTZELL, 1616+063, 07:43:57, which fits at 2507.2 +/- 58.2 ps observation 76, WETTZ13N:WETTZELL, 1639+230, 07:45:28, which fits at -1254.6 +/- 58.7 ps observation 79, WETTZ13N:WETTZELL, 1617+229, 07:46:39, which fits at -3769.9 +/- 58.3 ps observation 82, WETTZ13N:WETTZELL, NRAO512 , 07:48:11, which fits at 3057.3 +/- 58.2 ps observation 100, WETTZ13N:WETTZELL, 1849+670, 07:57:15, which fits at 341.9 +/- 58.2 ps Other comments: Cable values were not in the SESHAN25 and WETTZ13N log files. The correlator report provided the following station notes: NYALES20 (Ny/N): Did not observe due to elevation encoder problems. SESHAN25 (Sh/C): Problems with Time & Frequency system, the Frequency divider was unlocked. The equipment resynchronized. Reloaded CDAS backend. All system was normal at UT 07:36. Thus, missed 8 scans (314-0727 to 314-0736). WETTZ13N (Wn/W): RFI in S-band channel SR3U on baseline Wn-Wz; channel removed from fringe fitting on this baseline. WETTZELL (Wz/V): RFI in S-band channel SR3U on baseline Wn-Wz; channel removed from fringe fitting on this baseline. Parameterization: 10 parameters: UT1 offset atmosphere offset for: SESHAN25 WETTZ13N WETTZELL clock offset, first order term, and second order term for: WETTZ13N WETTZELL Clock breaks: None Session Statistics Observations: 240 scheduled (from all stations---includes NYALES20) 120 scheduled (from available stations---does not include NYALES20) 106 correlated (included in the database) 102 recoverable (usable in Solve/nuSolve) 92 used Session fit: 48.265 ps UT1 formal error: 11.53 microsec Source Performance Number of Observations Scheduled Correlated* Used 0016+731 18 7 7 0059+581 18 7 7 0133+476 18 7 7 0716+714 6 3 3 0718+793 6 3 2 1039+811 6 3 2 1128+385 6 3 1 1144+402 6 3 3 1156+295 6 3 2 1308+328 6 3 2 1324+224 6 3 2 1351-018 6 3 3 1546+027 6 3 3 1606+106 6 3 3 1616+063 6 3 2 1617+229 6 3 2 NRAO512 6 3 2 1639+230 6 3 2 1726+455 6 3 3 1803+784 18 7 7 3C371 18 9 7 1849+670 18 7 6 3C418 6 3 3 2229+695 18 7 7 2353+816 12 4 4 ------------ --------- ---------- ------ Source Total 240 106 92 * Correlated means included in the database. Please note that the number of recoverable (usable) observations cannot be broken down by source for Intensive solutions.