Session Notes for AUST13 campaign: a1315 Prepared by Jing Sun, Vienna University of Technology Prepared with VIE_SCHED Refer to http://auscope.phys.utas.edu.au/opswiki/doku.php?id=operations:start for general information. This set of notes consists of two parts: 1) Individual day notes 2) General AUST13 notes (repeated for all AUST13 days) *** Individual day notes *** =========================================================== ----- Parameter listing -------------------------------------- Experiment: AUST1315 Description AUST13 DAY 15 Scheduler: VIEN Correlator: CRTN Start: 2013-349-17:53:08 End: 2013-350-16:00:00 Current yyyyddd: 2013349 (2013.96) ( 56641 MJD, Sun 15DEC.) Greenwich sidereal time: 23:31:19 (17:53:08 UT) Sun's RA and DEC: 17h33.5m -23d17.8 =========================================================== First observations Observation listing from file ./a1315.skd for experiment AUST1315 Source Start DURATIONS name yyddd-hhmmss Ht Hb Ke Ww Yg 0607-157 13349-175308 20 20 20 20 20| ...... End of listing. =========================================================== Last observations Observation listing from file ./a1315.skd for experiment AUST1315 Source Start DURATIONS name yyddd-hhmmss Ht Hb Ke Ww Yg ...... 0537-286 13350-155801 105 367 331 367 367| End of listing. =========================================================== SKED Summary from file ./a1315.skd for experiment AUST1315 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 4.4 Min = 1 Max = 21 (Baseline Ht-Hb on 0454-810 ) RMS = 5.9 Total time: 1326.9 minutes ( 22.1 hours) Key: Ht=HART15M Hb=HOBART12 Ke=KATH12M Ww=WARK12M Yg=YARRA12M Ht Hb Ke Ww Yg Avg % obs. time: 24 65 65 61 69 57 % cal. time: 7 8 8 7 8 8 % slew time: 17 15 15 14 16 15 % idle time: 51 13 12 18 6 20 total # scans: 341 402 377 348 420 378 # scans/hour : 16 19 18 16 19 18 Avg scan (sec): 56 128 136 138 132 118 Total GBytes: 2404 6439 6424 6023 6913 5641 # OF OBSERVATIONS BY BASELINE | Ht Hb Ke Ww Yg StnTotal -------------------------------------- Ht| 232 241 176 316 2116 Hb| 324 320 314 2576 Ke| 277 332 2563 Ww| 249 2244 Yg| 2600 Number of 2-station scans: 146 Number of 3-station scans: 101 Number of 4-station scans: 127 Number of 5-station scans: 157 Total # of scans, observations: 531 2781 =========================================================== *** General AUST13 notes *** ===================================================================== AUST13 Session Notes November, 2013 First session start: November 28, 2013 21:00:00 UT End of last session: December 16, 2013 16:00:00 UT Number of sessions: 15 Participating stations: HART15M, HOBART12, KATH12M, WARK12M, YARRA12M ===================================================================== 1. Sources The pre-selection source list is created by Stas and extended by Olegs suggestions. And source 1921-293 is considered for real-time fringe check. 1) Good catalogue Number of sources in the pre-selection list: 87 (provided by Stas, N >= 3) + 6 (suggested by Oleg) + 1921-293 (for fringe check) = 94 Number of observed sources in the 8 sessions is 76, which is decided by the station-based scheduling optimization in Vie_Sched. 2) Bad catalogue Number of sources in the pre-selection list: 182 (provided by Stas, N >= 3) + 7 (suggested by Oleg) = 189 The source 1921-293 for fringe check is already included in the 182-source pre-selection list. Number of observed sources in the 7 sessions is 114, which is decided by the station-based scheduling optimization in Vie_Sched. 2. Scheduling parameters The same scheduling parameters are used for the good catalogue and bad catalogue. The station-based scheduling option with fill-in mode is employed to schedule for AUST13 campaign. 1) Cut-off elevation angle: 5 degrees 2) Minimum scan length: 20 sec 3) Maximum scan length: 500 sec 4) SNR targets: 20 on X band and 15 on S band, to have a better chance for detecting sources successfully. 5) Duration: 23h51m, i.e. one sidereal day minus 5 min for schedule changeover. 6) Recording rate: 1Gbps 16 MHz Ifs 32 MHz sampling rate 2-bit quantization 16 channels (10 channels for X and 6 channels for S band) 7) Minimum elongation angle to the Sun: 3 degrees 3. Record data amount per session The total record data is less than 8 TBytes at each station, and the observing time is less than 72.4%. 4. Fringe check As required for fringe check, one 20-sec scan per session on 1921-293 on all telescopes simultaneously is scheduled. We schedule this scan as soon as possible when all 5 antennas can observe source 1921-293 at the same time. 5. Repeatability per sidereal day The same schedules per sidereal day are obtained. ===================================================================== If you have any questions, please contact Jing Sun (jing.sun@tuwien.ac.at) or Johannes Boehm (Johannes.Boehm@geo.tuwien.ac.at).