Session Notes for v1703, CONTV1703 November 30, 2017, DOY 334 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 3 of 15 CONTV17 sessions. Participating stations are the VLBA stations and MEDICINA, SESHAN25, WETTZ13N, and YARRA12M. The frequency sequence is the same as in recent RV sessions. X-band: 8365.75, 8445.75, 8805.75, 8925.75 MHz S-band: 2232.75, 2262.75, 2352.75, 2372.75 MHz. Bandwidths are 8 MHz and 2-bit sampling is used. The frequency ending in .75 MHz is necessary at the VLBA stations. Therefore it will not be possible to monitor phase cals using the 10 kHz filters. Participation by SC-VLBA is doubtful, since their internet communications have been down since two hurricanes in September. However it was tagged along in case it is able to participate. There are 5-minute breaks scheduled for WETTZ13N every three hours for some multi-technique observations. These breaks are scheduled at: 02:55 - 03:00 UTC 05:55 - 06:00 UTC 08:55 - 09:00 UTC 11:55 - 12:00 UTC 14:55 - 15:00 UTC 17:55 - 18:00 UTC 20:55 - 21:00 UTC 23:55 - 00:00 UTC (schedule change) Observations begin at 2017 DOY 334 00:00:00 UTC (November 30) and nominally end at 334 23:55:00. There are two long (300 second) scans near the beginning. These are intended to be fringe finder scans for the VLBA correlator. The first few observations are: Source Start DURATIONS name yyddd-hhmmss Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc 0059+581 17334-000000| 300 300 300 300 300 300 300 300 300 300 300 300| 1849+670 17334-000618| 52 40 40 73 73| 1639-062 17334-000744| 300 300 300 300 300 300 300 300 300 | 1053+704 17334-000812| 257 211 257 257 | and the last few observations are: name yyddd-hhmmss Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc 2214+350 17334-234916| 339 339 139 171 339 339| 1546+027 17334-235020| 125 120 93 57 93 127 127 | 2059+034 17334-235308| 107 107 107 | 1725+123 17334-235328| 87 87 87 | 1849+670 17334-235340| 75 75 75 | Correlation: This experiment will be correlated at the LBO/VLBA on the LBO DiFX software correlator. Most geodesy stations will record three CONTV17 sessions on a single module. The modules must be shipped directly to the VLBA. We cannot do E-transfers for the CONTV17 sessions. Modules should be shipped to the following address: Socorro address for media shipping: VLBA Array Operations Center Long Baseline Observatory Attn: Juan Cordova 1003 Lopezville Road Socorro, NM 87801 U.S.A. Phone: 575-835-7000 Schedule Statistics: Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc Avg % obs. time: 63 61 61 63 61 56 62 60 62 62 59 68 77 39 61 % cal. time: 5 6 5 5 6 4 4 5 5 6 3 4 3 3 5 % slew time: 24 26 27 25 26 33 23 27 24 26 26 2 9 19 23 % idle time: 7 6 6 6 6 6 10 6 7 6 10 25 10 39 11 total # scans: 427 485 457 459 488 327 366 465 434 489 286 304 284 273 396 # scans/hour : 18 20 19 19 20 14 15 19 18 20 12 13 12 11 17 Avg scan (sec): 127 109 115 118 108 148 145 112 124 108 178 194 233 122 138 # data tracks: 16 16 16 16 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 1.7 1.7 1.7 1.7 1.7 1.5 1.7 1.7 1.7 1.7 1.6 1.9 2.1 1.1 1.7 # OF OBSERVATIONS BY BASELINE | Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc Total -------------------------------------------------------------------------------- Br| 355 264 366 368 97 212 323 372 361 109 89 93 155 3164 Fd| 325 424 469 97 203 399 382 462 72 91 63 207 3549 Hn| 298 318 211 119 369 258 315 43 196 2 247 2965 Kp| 424 79 210 366 400 429 91 75 80 183 3425 La| 93 216 393 393 475 80 89 72 200 3590 Mc| 30 144 63 86 81 287 94 120 1482 Mk| 167 225 221 201 22 197 56 2079 Nl| 330 387 64 136 37 214 3329 Ov| 396 94 60 89 159 3221 Pt| 82 81 74 198 3567 Sh| 72 228 8 1225 Wn| 91 116 1405 Yg| 0 1120 Sc| 1863 Number of 2-station scans: 0 Number of 3-station scans: 220 Number of 4-station scans: 131 Number of 5-station scans: 65 Number of 6-station scans: 46 Number of 7-station scans: 62 Number of 8-station scans: 84 Number of 9-station scans: 140 Number of 10-station scans: 98 Number of 11-station scans: 32 Number of 12-station scans: 4 Number of 13-station scans: 1 Number of 14-station scans: 0 Total number of scans: 883 Total number of obs: 17992