Session Notes for v1710, CONTV1710 December 7, 2017, DOY 341 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 10 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 341 00:00:00 UTC (December 7) and nominally end at 341 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 17341-000000| 40 93 40 93 40| NRAO530 17341-000000| 300 300 300 300 300 300 300 300 300 | 0237-027 17341-000218| 59 62 62 50| 0048-097 17341-000401| 68 90 90| 0016+731 17341-000724| 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 1424-418 17341-234822| 44 96 96 | 2149+056 17341-235048| 109 105 106 108 106 110 102 110 107 | 0727-115 17341-235106| 63 63 40 | 2215+150 17341-235313| 77 77 77 77 77 77 77 77 77 77| 0748+126 17341-235319| 71 71 71 71 | 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: 66 62 59 64 62 56 60 61 64 62 59 69 77 38 61 % cal. time: 5 6 5 5 6 4 4 5 5 6 3 3 3 3 5 % slew time: 23 25 26 24 26 30 24 26 24 25 28 2 8 18 23 % idle time: 6 6 9 6 6 9 11 6 6 6 8 25 10 39 11 total # scans: 414 477 454 446 480 319 372 467 436 477 280 300 268 274 390 # scans/hour : 17 20 19 19 20 13 16 20 18 20 12 13 11 11 16 Avg scan (sec): 136 113 112 124 111 152 139 113 126 112 182 198 248 119 141 # 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 1.6 1.7 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| 340 269 347 355 102 213 325 362 352 106 93 83 149 3096 Fd| 332 423 453 103 232 384 384 456 68 91 62 199 3527 Hn| 296 322 202 135 374 277 326 42 187 2 249 3013 Kp| 424 79 225 357 399 431 73 70 69 177 3370 La| 100 248 390 400 469 75 90 68 191 3585 Mc| 30 156 86 96 102 276 97 124 1553 Mk| 184 234 241 182 27 175 60 2186 Nl| 339 379 63 140 30 223 3344 Ov| 404 86 76 74 161 3282 Pt| 74 87 67 193 3575 Sh| 97 221 17 1206 Wn| 97 117 1448 Yg| 0 1045 Sc| 1860 Number of 2-station scans: 0 Number of 3-station scans: 180 Number of 4-station scans: 129 Number of 5-station scans: 69 Number of 6-station scans: 52 Number of 7-station scans: 53 Number of 8-station scans: 88 Number of 9-station scans: 148 Number of 10-station scans: 85 Number of 11-station scans: 35 Number of 12-station scans: 8 Number of 13-station scans: 1 Number of 14-station scans: 0 Total number of scans: 848 Total number of obs: 18045