IVS-OHIG91 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2014 Nov.12-13 doy 316-317 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 2014-316-1800 UT Nominal End Time: 2014-317-1800 UT Duration: 24.0 hr Correlator: Bonn Participating stations: =================== Ft FORTLEZA Hh HARTRAO Hb HOBART12 Ke KATH12M Kk KOKEE Sy SYOWA Ww WARK12M Yg YARRA12M 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: ohig91 =========================================================== Experiment: OHIG91 Description IVS-OHIG91 Scheduler: IGGB/muesk Correlator: BONN Start: 2014-316-18:00:00 End: 2014-317-18:00:01 Current yyyyddd: 2014316 (2014.87) ( 16974 MJD, WED. 12NOV.) =========================================================== 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 ohig91.skd for experiment OHIG91 Source Start DURATIONS name yyddd-hhmmss Ft Hh Hb Ke Kk Sy Ww Yg 0454-234 14316-180000| 239 592 798 798 446| 1334-127 14316-180000| 277 277 | 1334-127 14316-194142| 113 113 66 | =========================================================== Last observations 1424-418 14317-174913| 211 211 | 0727-115 14317-174938| 173 196 42 196 191| 0642+449 14317-175346| 247 242 247| 1741-038 14317-175537| 44 44 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 4.1 Min = 0.0 Max = 44.4 (Baseline Hh-Ww on 1424-418) RMS = 7.5 Total time: 1437 minutes ( 24.0 hours). Key: Ft=FORTLEZA Hh=HARTRAO Hb=HOBART12 Ke=KATH12M Kk=KOKEE Sy=SYOWA Ww=WARK12M Yg=YARRA12M Ft Hh Hb Ke Kk Sy Ww Yg Avg % obs. time: 65 40 69 76 54 68 73 67 64 % cal. time: 2 2 2 2 2 2 2 2 2 % slew time: 25 38 5 6 13 2 5 6 13 % idle time: 7 18 22 15 30 27 20 24 21 total # scans: 145 167 191 181 191 138 162 188 170 # scans/hour : 6 7 8 8 8 6 7 8 7 Avg scan (sec): 388 209 311 364 242 428 386 307 328 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total TBytes: 1.0 0.6 1.1 1.2 0.8 1.1 1.1 1.0 1.0 # OF OBSERVATIONS BY BASELINE | Ft Hh Hb Ke Kk Sy Ww Yg Total -------------------------------------------------- Ft| 71 1 0 57 43 4 4 180 Hh| 40 43 0 83 17 61 315 Hb| 126 74 48 120 120 529 Ke| 71 38 96 133 507 Kk| 15 88 48 353 Sy| 37 55 319 Ww| 77 439 Yg| 498 Total number of scans: 488 Total number of obs: 1570 Total integrated obs-time: 460366 Average obs-time: 293.2 Histogram of observation durations =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: FORTLEZA SYOWA Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:2 128 Mbits 64 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 1-bit channels recorded per sub-pass X S Total 10.00 6.00 16.00 Recording mode setup for: HARTRAO HOBART12 KATH12M KOKEE WARK12M YARRA12M Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:1 128 Mbits 64 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 1-bit channels recorded per sub-pass X S Total 10.00 6.00 16.00 ===========================================================