Session Notes for v1702, CONTV1702 November 29, 2017, DOY 333 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 2 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 333 00:00:00 UTC (November 29) and nominally end at 333 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 0016+731 17333-000000| 300 300 300 300 300 300 300 300 300 300 300 300 300| 1846+322 17333-000623| 395 480 399 411 397 480| 1546+027 17333-000804| 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 3C446 17333-234925| 89 40 41 84 85 40 84 87 89| 2000+472 17333-234956| 299 40 299 | 2059+034 17333-235047| 40 43 43 | 2013+163 17333-235209| 166 166 166 166| 1546+027 17333-235230| 125 125 125 125 125 125 125 125 | 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 59 63 60 55 61 60 62 61 60 68 77 39 61 % cal. time: 5 6 5 5 6 4 4 6 5 6 3 3 3 3 5 % slew time: 25 27 26 24 27 34 22 27 25 27 26 2 9 20 23 % idle time: 6 6 8 6 6 7 12 7 7 6 10 26 10 37 11 total # scans: 429 494 450 451 497 313 365 475 443 495 268 298 279 277 395 # scans/hour : 18 21 19 19 21 13 15 20 19 21 11 12 12 12 17 Avg scan (sec): 126 106 114 121 105 151 144 108 120 106 192 196 237 121 138 # 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 1.6 1.7 1.7 1.5 1.7 1.6 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| 367 295 373 383 92 223 360 380 380 86 86 76 170 3271 Fd| 335 420 473 103 223 415 399 478 59 95 58 213 3638 Hn| 288 331 197 132 377 271 326 29 186 4 258 3029 Kp| 421 78 229 360 409 427 79 67 82 182 3415 La| 100 227 416 407 487 68 91 60 210 3674 Mc| 27 137 70 96 88 278 99 126 1491 Mk| 186 236 230 180 22 182 65 2162 Nl| 346 408 53 130 34 230 3452 Ov| 412 85 65 83 164 3327 Pt| 67 87 64 206 3668 Sh| 79 224 11 1108 Wn| 97 115 1398 Yg| 0 1063 Sc| 1950 Number of 2-station scans: 0 Number of 3-station scans: 189 Number of 4-station scans: 135 Number of 5-station scans: 69 Number of 6-station scans: 53 Number of 7-station scans: 53 Number of 8-station scans: 81 Number of 9-station scans: 130 Number of 10-station scans: 105 Number of 11-station scans: 41 Number of 12-station scans: 4 Number of 13-station scans: 2 Number of 14-station scans: 0 Total number of scans: 862 Total number of obs: 18323