IVS-OHIG77 (Continuous Observations of the Rotation of the Earth and South terrestical reference frame network) 2012 Feb.28-29 doy 059-060 Insitute 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: =================== FORTLEZA KOKEE SYOWA OHIGGINS 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. Procedures ========== Please generate the procedures for this session using drudg. Except of Syowa station who have to prepare K5 setup procedures with the existing skd file. Session Notes for session: ohig77 =========================================================== Experiment: OHIG77 Description IVS-OHIG77 Scheduler: mueskens Correlator: BONN Start: 2012-059-17:30:00 End: 2012-060-17:30:01 Current yyyyddd: 2012059 (2012.16) ( 15986 MJD, TUES 28FEB.) =========================================================== 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. In addition we have several recording gaps at Ohiggins due to SAT-passes each about 18-20 minutes. =========================================================== First observations Observation listing from file ./ohig77.skd for experiment OHIG77 Source Start DURATIONS name yyddd-hhmmss Ft Kk Oh Sy Tc 0537-441 12059-173000| 98 128 139 139| 1334-127 12059-173258| 571 571 | Last observations 3C418 12060-171916| 609 609 | 3C454.3 12060-172247| 73 73| 1921-293 12060-172503| 248 248 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 3.6 Min = 0.0 Max = 39.5 (Baseline Ft-Kk on OJ287 ) RMS = 8.5 Total time: 1439 minutes ( 24.0 hours). Key: Ft=FORTLEZA Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Tc=TIGO Ft Kk Oh Sy Tc Avg % obs. time: 48 37 60 52 74 54 % cal. time: 1 1 1 1 1 1 % slew time: 21 4 8 1 2 8 % idle time: 28 57 30 44 21 36 total # scans: 123 80 112 105 123 108 # scans/hour : 5 3 5 4 5 5 Avg scan (sec): 340 400 465 430 520 430 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total GBytes: 754 575 938 812 1151 846 Total GB(M5): 670 512 833 722 1023 752 Total GBytes (M5) recorded: 3760.0 # OF OBSERVATIONS BY BASELINE | Ft Kk Oh Sy Tc StnTotal ----------------------------------- Ft| 45 67 51 82 245 Kk| 25 18 37 125 Oh| 67 82 241 Sy| 60 196 Tc| 261 Total # of scans, observations: 197 534 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: FORTLEZA KOKEE OHIGGINS SYOWA TIGOCONC 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 ===========================================================