IVS-OHIG84 (Continuous Observations of the Rotation of the Earth and South terrestical reference frame network) 2013 Feb,20-21 doy 051-052 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 18h00 UT Nominal End Time: 18h00 UT Duration: 24.0 hr Correlator: Bonn Participating stations: =================== FORTLEZA 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: ohig84 =========================================================== Experiment: OHIG84 Description IVS-OHIG84 Scheduler: IGGB/muesk Correlator: BONN Start: 2013-051-18:00:00 End: 2013-052-18:00:00 Current yyyyddd: 2013051 (2013.14) ( 16344 MJD, WED. 20FEB.) =========================================================== 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 ohig84.skd for experiment OHIG84 Source Start DURATIONS name yyddd-hhmmss Ft Kk Oh Sy Tc 0537-441 13051-180000| 330 165 448 448| 0716+714 13051-221455| 187 187 | Last observations 1741-038 13052-171242| 286 286| 0537-441 13052-173013| 402 402| 0420-014 13052-174532| 746 758 758 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 3.8 Min = 0.0 Max = 41.9 (Baseline Kk-Sy on 0727-115) RMS = 7.7 Total time: 1438 minutes ( 24.0 hours). Key: Ft=FORTLEZA Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Tc=TIGO Ft Kk Oh Sy Tc Avg % obs. time: 66 52 45 49 40 50 % cal. time: 1 1 1 1 1 1 % slew time: 16 5 8 1 1 7 % idle time: 16 41 44 48 58 42 total # scans: 110 104 85 88 71 91 # scans/hour : 5 4 4 4 3 4 Avg scan (sec): 515 432 461 476 481 472 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total GBytes: 1020 809 705 754 615 781 Total GB(M5): 906 719 627 671 547 694 Total GBytes (M5) recorded: 3469.7 # OF OBSERVATIONS BY BASELINE | Ft Kk Oh Sy Tc StnTotal ----------------------------------- Ft| 47 40 40 37 164 Kk| 22 18 40 127 Oh| 54 20 136 Sy| 12 124 Tc| 109 Total # of scans, observations: 198 330 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: FORTLEZA 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 Recording mode setup for: 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 ===========================================================