Session Notes for v1714, CONTV1714 December 11, 2017, DOY 345 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 14 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 345 00:00:00 UTC (December 11) and nominally end at 345 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 0133+476 17345-000000| 40 68 40 68 51| 1741-038 17345-000000| 300 300 300 300 300 300 300 300 300 | 0322+222 17345-000155| 73 77 84 84| 0059+581 17345-000431| 113 106 123 123 112| 0016+731 17345-000715| 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 1617+229 17345-234551| 308 377 311 309 294 355 307 308 475 475 | 0821+394 17345-234621| 50 40 50 | 0738+491 17345-234754| 261 207 261 | 1520+319 17345-235132| 180 180 180 180 180 180 | 1803+784 17345-235316| 80 80 80 80 80 80| 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 57 60 61 63 63 59 68 77 41 61 % cal. time: 5 6 6 5 6 4 4 6 5 6 3 4 3 4 5 % slew time: 23 25 26 24 25 30 24 25 23 25 25 2 9 19 22 % idle time: 8 6 9 6 6 8 11 8 7 6 12 26 10 35 12 total # scans: 429 483 475 452 488 318 376 475 445 486 287 303 291 303 400 # scans/hour : 18 20 20 19 20 13 16 20 19 20 12 13 12 13 17 Avg scan (sec): 127 111 107 123 110 153 138 110 123 111 177 193 227 117 137 # 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 1.6 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| 357 286 358 370 82 215 345 369 370 91 82 80 176 3181 Fd| 347 426 469 84 215 414 398 469 64 82 65 217 3607 Hn| 313 347 199 125 379 293 343 40 184 3 279 3138 Kp| 426 66 211 383 402 429 70 63 79 198 3424 La| 87 216 422 403 474 65 88 62 224 3653 Mc| 17 125 67 83 95 283 97 129 1414 Mk| 168 228 225 189 20 195 68 2092 Nl| 357 416 55 118 33 240 3455 Ov| 409 74 64 76 191 3331 Pt| 67 83 67 217 3652 Sh| 86 231 13 1140 Wn| 95 118 1366 Yg| 0 1083 Sc| 2070 Number of 2-station scans: 0 Number of 3-station scans: 220 Number of 4-station scans: 146 Number of 5-station scans: 52 Number of 6-station scans: 41 Number of 7-station scans: 57 Number of 8-station scans: 95 Number of 9-station scans: 144 Number of 10-station scans: 98 Number of 11-station scans: 33 Number of 12-station scans: 2 Number of 13-station scans: 3 Number of 14-station scans: 0 Total number of scans: 891 Total number of obs: 18303