Session Notes for v1706, CONTV1706 December 3, 2017, DOY 337 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 6 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 337 00:00:00 UTC (December 3) and nominally end at 337 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 1639-062 17337-000000| 300 300 300 300 300 300 300 300 300 | 1849+670 17337-000000| 50 40 50 40| 0133+476 17337-000216| 43 40 50 50| 0529+483 17337-000436| 99 56 117 117| 0016+731 17337-000725| 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 1546+027 17337-234716| 133 128 136 147 147 | 0016+731 17337-234734| 40 51 441 48 40 209 48 289 441| 1656-075 17337-235007| 96 97 97 96 93 94 97 | 1725+123 17337-235240| 120 120 120 120 120 120 120 120 | 0748+126 17337-235304| 96 96 96 96 | 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 62 59 64 62 53 59 61 64 62 58 67 76 40 61 % cal. time: 5 6 5 5 6 4 4 6 5 6 3 3 3 3 5 % slew time: 24 25 26 24 25 35 24 26 24 26 29 2 8 19 23 % idle time: 7 6 8 6 6 7 11 7 6 6 8 27 11 37 12 total # scans: 436 491 469 464 501 322 376 480 448 497 288 301 276 289 402 # scans/hour : 18 21 20 19 21 13 16 20 19 21 12 13 12 12 17 Avg scan (sec): 125 108 109 119 106 141 136 109 123 107 174 191 238 118 135 # 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 1.8 1.7 1.5 1.6 1.7 1.8 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| 351 293 367 372 90 232 353 383 370 95 84 86 171 3247 Fd| 350 428 469 87 237 419 390 469 58 85 55 225 3623 Hn| 320 346 181 140 389 290 342 33 174 2 261 3121 Kp| 435 70 242 390 414 435 71 68 75 195 3510 La| 86 247 426 407 488 71 79 64 221 3711 Mc| 27 119 64 90 120 284 109 121 1448 Mk| 191 258 247 175 25 175 61 2257 Nl| 361 419 56 113 32 241 3509 Ov| 408 85 61 84 172 3377 Pt| 69 83 63 218 3701 Sh| 107 232 13 1185 Wn| 105 113 1381 Yg| 0 1082 Sc| 2012 Number of 2-station scans: 0 Number of 3-station scans: 180 Number of 4-station scans: 150 Number of 5-station scans: 57 Number of 6-station scans: 46 Number of 7-station scans: 64 Number of 8-station scans: 92 Number of 9-station scans: 156 Number of 10-station scans: 86 Number of 11-station scans: 40 Number of 12-station scans: 3 Number of 13-station scans: 1 Number of 14-station scans: 0 Total number of scans: 875 Total number of obs: 18582