Session Notes for v1705, CONTV1705 December 2, 2017, DOY 336 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 5 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 336 00:00:00 UTC (December 2) and nominally end at 336 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 17336-000000| 40 76 76 56| 1741-038 17336-000000| 300 300 300 300 300 300 300 300 300 300 | 2000+472 17336-000157| 76 76 42| 0529+483 17336-000355| 48 127 127| 1803+784 17336-000701| 300 300 300 300 300 300 300 300 300 300 300 300 300| and the last few observations are: name yyddd-hhmmss Br Fd Hn Kp La Mc Mk Nl Ov Pt Sh Wn Yg Sc 1954-388 17336-234843| 53 59 58 59 58 | 0202+319 17336-234947| 55 52 40 71 71 70| 1741-038 17336-235123| 40 40 40 | 0059+581 17336-235148| 74 84 58 83 81 50 78 81 82 96 96| 1803+784 17336-235405| 40 40 40 40 40 40 40 40 40 40 40 40 | 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 58 63 61 56 58 60 63 62 57 67 76 39 60 % cal. time: 5 6 5 5 6 4 5 6 5 6 3 4 3 3 5 % slew time: 25 27 27 25 27 32 26 27 25 26 27 2 8 20 24 % idle time: 6 6 9 6 6 8 10 6 6 6 12 27 11 36 12 total # scans: 428 482 467 451 488 323 398 476 446 482 280 302 287 294 400 # scans/hour : 18 20 20 19 20 14 17 20 19 20 12 13 12 12 17 Avg scan (sec): 127 109 106 121 108 148 125 108 121 110 176 190 228 115 134 # 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 1.6 1.7 1.7 1.5 1.6 1.6 1.7 1.7 1.6 1.8 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| 354 276 360 365 81 230 336 372 361 97 69 95 167 3163 Fd| 344 401 469 101 231 412 378 457 58 87 62 218 3572 Hn| 290 345 198 140 383 273 330 35 181 3 272 3070 Kp| 407 71 240 357 409 414 76 61 83 176 3345 La| 100 232 413 386 467 60 86 62 218 3610 Mc| 35 139 61 91 84 281 94 131 1467 Mk| 188 255 243 190 26 190 72 2272 Nl| 335 396 56 120 33 244 3412 Ov| 399 89 49 92 162 3260 Pt| 64 77 68 207 3574 Sh| 83 227 15 1134 Wn| 96 123 1339 Yg| 0 1105 Sc| 2005 Number of 2-station scans: 0 Number of 3-station scans: 211 Number of 4-station scans: 130 Number of 5-station scans: 72 Number of 6-station scans: 50 Number of 7-station scans: 57 Number of 8-station scans: 103 Number of 9-station scans: 140 Number of 10-station scans: 86 Number of 11-station scans: 34 Number of 12-station scans: 4 Number of 13-station scans: 2 Number of 14-station scans: 0 Total number of scans: 889 Total number of obs: 18164