IVS-OHIG83 (Continuous Observations of the Rotation of the Earth and South terrestical reference frame network) 2013 Feb,13-14 doy 044-045 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 17h30 UT Nominal End Time: 17h30 UT Duration: 24.0 hr Correlator: Bonn Participating stations: =================== HARTRAO KOKEE OHIGGINS SYOWA TIGOCONC Purpose ======= The purpose of the IVS-OHIG (Southern Terrestrial Reference Frame) sessions is to tie together optimally the sites in the southern hemisphere. Because these sessions concentrate on the southern sites and do not use observing time to accurately tie these sites to far northern sites (as the Global Sessions do) they should yield a very accurate regional TRF around the South Pole. Schedule ======== This is a schedule generated with the automatic mode of sked using the variable scan length with a minimum of 60 seconds. The most recent and updated source flux models are included. SNR goals are 20/18 at X-band and 20/18 at S-band for all stations. The predicted SNRs used include a 30 ps noise contribution added in quadrature, which is a typical size for the reweight constants size for the reweight constants required in SOLVE solutions. This schedule was optimized by different features: - the covariance analysis during schedule generation considers the previous 2 hours of observations, - minor SKED optimization parameters . maximum number of observations, were optimized over the best (in a covariance sense) 75% of the possible observations, this produces a somewhat more even sky distribution, - observations were weighted by their expected SNRs, - 30 ps noise contribution added, - mimimum time between observations of the same radio source was set to 20 min - use of CvgONLY in order to improve the geometry of observation This schedule was made using 60 sources which helped improve the sky coverage. Session Notes for session: ohig83 =========================================================== Experiment: OHIG83 Description IVS-OHIG83 Scheduler: IGGB/muesk Correlator: BONN Start: 2013-044-17:30:00 End: 2013-045-17:30:01 Current yyyyddd: 2013044 (2013.12) ( 16337 MJD, WED. 13FEB.) =========================================================== There are no observations for Kokee from 18:20 U.T. to 19:40 U.T. Kokee will participate in the intensive session during this 1.5 hour period. =========================================================== First observations Observation listing from file /usr/local/soft/sked/schedules/ohig83.skd for experiment OHIG83 Source Start DURATIONS name yyddd-hhmmss Hh Kk Oh Sy Tc 0537-441 13044-173000| 123 156 350 350| 0420-014 13044-173626| 195 758 758 | 1741-038 13044-173630| 296 296| Last observations 1921-293 13045-171615| 143 143 | 1639-062 13045-172007| 511 511| 0332-403 13045-172044| 526 526 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 3.7 Min = 0.0 Max = 53.3 (Baseline Hh-Oh on OJ287 ) RMS = 7.9 Total time: 1440 minutes ( 24.0 hours). Key: Hh=HARTRAO Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Tc=TIGO Hh Kk Oh Sy Tc Avg % obs. time: 38 51 66 52 41 50 % cal. time: 2 1 2 2 1 1 % slew time: 29 4 12 2 1 10 % idle time: 30 43 20 43 55 39 total # scans: 140 100 134 146 89 121 # scans/hour : 6 4 6 6 4 5 Avg scan (sec): 235 442 423 306 401 361 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total GBytes: 591 796 1021 805 643 771 Total GB(M5): 525 707 907 716 572 685 Total GBytes (M5) recorded: 3427.4 # OF OBSERVATIONS BY BASELINE | Hh Kk Oh Sy Tc StnTotal ----------------------------------- Hh| 0 57 106 20 183 Kk| 45 10 53 108 Oh| 68 25 195 Sy| 15 199 Tc| 113 Number of 2-station scans: 216 Number of 3-station scans: 55 Number of 4-station scans: 3 Total # of scans, observations: 274 399 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: HARTRAO KOKEE TIGOCONC Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:1 128.000 Mbits 64.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 16(*1) 16 0.00 X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz S-band spanned bw= 80.0 MHz rms spanned bw= 30.2 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 Recording mode setup for: OHIGGINS SYOWA Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 128.000 Mbits 64.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 16(*2) 32 0.00 X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz S-band spanned bw= 80.0 MHz rms spanned bw= 30.2 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 ===========================================================