Session Notes for v1711, CONTV1711 December 8, 2017, DOY 342 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 11 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 342 00:00:00 UTC (December 8) and nominally end at 342 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 1741-038 17342-000000| 300 300 300 300 300 300 300 300 300 | 1803+784 17342-000000| 42 82 40 82 49| 0544+273 17342-000203| 191 180 235 235| 0059+581 17342-000714| 300 300 300 300 300 300 300 300 300 300 300 300| and the last few observations are: name yyddd-hhmmss Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc 0454+844 17342-234311| 222 239 230 227 242 216 242 228 | 2309+454 17342-234836| 49 40 67 47 40 43 71 40 62 40 71| 0613+570 17342-235133| 192 192 192 192 192 192 192| 1538+149 17342-235140| 185 185 185 185 185 185 185 | 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: 65 62 58 65 63 56 58 60 65 63 57 68 77 38 61 % cal. time: 5 5 5 5 6 4 4 5 5 5 3 4 3 3 5 % slew time: 24 25 27 23 25 32 25 27 23 25 28 2 9 19 23 % idle time: 6 6 9 6 6 7 12 7 6 6 11 26 10 39 12 total # scans: 419 466 457 430 474 318 367 462 432 471 280 308 276 273 388 # scans/hour : 18 19 19 18 20 13 15 19 18 20 12 13 12 11 16 Avg scan (sec): 133 115 109 130 114 151 136 113 129 115 175 189 239 118 139 # 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): 1.8 1.7 1.6 1.8 1.7 1.5 1.6 1.7 1.8 1.7 1.6 1.9 2.1 1.0 1.7 # OF OBSERVATIONS BY BASELINE | Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc Total -------------------------------------------------------------------------------- Br| 340 282 359 357 75 208 336 369 358 87 72 80 168 3091 Fd| 319 392 443 85 207 382 370 441 51 80 54 203 3367 Hn| 282 314 183 134 366 262 306 29 183 1 247 2908 Kp| 399 69 212 350 398 403 68 62 75 176 3245 La| 80 223 381 387 463 61 75 62 195 3440 Mc| 28 123 58 77 104 279 104 116 1381 Mk| 179 229 228 166 22 174 68 2078 Nl| 338 373 54 121 30 222 3255 Ov| 392 80 50 83 163 3179 Pt| 60 71 65 192 3429 Sh| 96 221 7 1084 Wn| 97 110 1318 Yg| 0 1046 Sc| 1867 Number of 2-station scans: 0 Number of 3-station scans: 228 Number of 4-station scans: 141 Number of 5-station scans: 72 Number of 6-station scans: 47 Number of 7-station scans: 49 Number of 8-station scans: 81 Number of 9-station scans: 140 Number of 10-station scans: 89 Number of 11-station scans: 31 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: 17344