Session Notes for v1707, CONTV1707 December 4, 2017, DOY 338 Prepared by David Gordon, NVI, Inc./GSFC =========================================================================== This is number 7 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 338 00:00:00 UTC (December 4) and nominally end at 338 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 1849+670 17338-000000| 115 40 119 126 126| NRAO530 17338-000000| 300 300 300 300 300 300 300 300 300 | 0529+483 17338-000313| 144 129 138 167 167| 0059+581 17338-000712| 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 2113+293 17338-234853| 103 40 103 47 43 105 105 94 40 105| OJ287 17338-234925| 40 40 59 59 | 0748+126 17338-235105| 48 63 86 86 | 2214+350 17338-235125| 195 195 195 195 195 195 195 195 195 195| 0821+394 17338-235312| 88 88 88 | 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 61 64 62 56 60 61 63 63 58 69 75 40 61 % cal. time: 5 5 5 5 5 4 4 5 5 5 3 4 3 3 4 % slew time: 23 25 26 24 26 32 23 26 23 25 27 2 9 18 23 % idle time: 8 7 7 5 6 7 11 6 8 6 11 25 12 37 12 total # scans: 413 460 451 431 471 327 370 458 418 464 281 314 285 270 386 # scans/hour : 17 19 19 18 20 14 15 19 17 19 12 13 12 11 16 Avg scan (sec): 132 116 116 128 114 148 140 115 129 117 176 189 227 128 140 # 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 1.7 1.8 1.7 1.5 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| 338 267 350 357 98 205 329 349 353 89 99 89 168 3091 Fd| 314 392 449 107 218 382 370 440 58 98 68 203 3437 Hn| 277 311 218 126 365 255 301 37 212 5 252 2940 Kp| 400 86 218 343 387 406 67 86 83 183 3278 La| 102 229 384 384 457 69 97 74 202 3515 Mc| 21 151 74 99 94 287 93 121 1551 Mk| 175 229 233 184 24 199 62 2123 Nl| 321 371 57 147 36 225 3286 Ov| 390 80 72 90 156 3157 Pt| 66 91 78 194 3479 Sh| 88 231 8 1128 Wn| 87 118 1506 Yg| 0 1133 Sc| 1892 Number of 2-station scans: 0 Number of 3-station scans: 210 Number of 4-station scans: 136 Number of 5-station scans: 57 Number of 6-station scans: 50 Number of 7-station scans: 47 Number of 8-station scans: 81 Number of 9-station scans: 135 Number of 10-station scans: 98 Number of 11-station scans: 37 Number of 12-station scans: 3 Number of 13-station scans: 3 Number of 14-station scans: 0 Total number of scans: 857 Total number of obs: 17758