IVS-OHIG47 (Continuous Observations of the Rotation of the Earth and South terrestical reference frame network) 2006 Nov. 29/30 doy 333/334 Geodetic Institute of the University of Bonn, Germany Correlator: see Multi Agency Schedule 2006 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. NO PREPASS TIME: There is no time allowed in the schedule for prepassing tapes. Therefore all tapes needed for this experiment must be pre-checked before the start of this experiment. FREQUENCY SEQUENCE: Up to now we record in a new frequency sequence called EUR-T2 with a channel bandwith of 4 Mhz and 16 tracks. See more details in the section irecording mode in this file. RECORDING DATA/MODULES All stations should put so much O'Higgins sessions as possible on one (1) or two (2) module(s). This will help limit the number of modules being held up in the O'Higgins campaign. For Example: one OHIG experiment need 550 Gbyte of data. So on one C or D-size you can record all three Ohig-experiments. =========================================================== Parameter values for experiment OHIG47 Experiment description: IVS-OHIG47 Scheduler: mueskens Correlator: see multiagency schedule Nominal start: 2006-333-18:00:00 Nominal end: 2006-334-18:00:01 Current yyyyddd: 2006333 (2006.91) ( 14069 MJD, WED. 29NOV.) Greenwich sidereal time: 22:33:55.00 (18: 0: 0 UT) Sun's RA and DEC: 16h 22.3m -21d 32.4 =========================================================== There are no observations for Kokee from 18:00 U.T. to 20:00 U.T. Kokee will participate in the intensive session during this two hour period. =========================================================== First observations Observation listing from file ohig47.skd for experiment OHIG47 Source Start DURATIONS name yyddd-hhmmss Ft Hh Ho Kk Oh Sy Tc 0537-441 06333-180000| 40 86 88 88 | 1921-293 06333-180351| 116 534 534| 2121+053 06333-180701| 230 403 403 | End of listing. =========================================================== Last observations 1921-293 06334-173634| 107 564 564| OJ287 06334-173704| 60 60 | 0743+259 06334-173945| 112 112 | 2121+053 06334-174008| 232 331 331 | 1424-418 06334-174530| 40 40 | End of listing. =========================================================== Average number of obs. per baseline per source (normalized by up-time) = 4.4 Min = .0 Max = 43.4 (Baseline Ho-Kk on 0537-441) RMS = 8.3 Total time: 1426 minutes ( 23.8 hours). Key: Ft=FORTLEZA Hh=HARTRAO Ho=HOBART26 Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Tc=TIGO Ft Hh Ho Kk Oh Sy Tc Avg % obs. time: 48 31 36 35 71 66 61 50 % cal. time: 2 2 3 3 1 2 1 2 % slew time: 27 37 44 8 10 3 4 19 % idle time: 22 29 16 53 17 28 33 29 total # scans: 181 179 272 216 127 138 121 176 # scans/hour : 7.6 7.5 11.4 9.1 5.3 5.8 5.1 7.4 Avg scan (sec): 225 146 113 140 475 412 428 276 Total GBytes: 767 504 604 584 1109 1047 954 795 Total GB(M5): 681 448 537 519 985 931 848 707 # of tapes : 4.9 .9 1.0 .9 1.9 1.8 1.6 tape change times (hhmm): 2305 0000 0000 0000 0641 0803 0927 0344 0000 0000 0000 0000 0000 0000 0825 0000 0000 0000 0000 0000 0000 1346 0000 0000 0000 0000 0000 0000 Total number of tapes: 12.9 Total GBytes (M5) recorded: 4949.6 # OF OBSERVATIONS BY BASELINE | Ft Hh Ho Kk Oh Sy Tc StnTotal ------------------------------------------ Ft|181 116 21 36 70 59 67 369 Hh| 179 67 0 63 81 33 360 Ho| 272 166 56 76 36 422 Kk| 216 19 12 46 279 Oh| 127 102 62 372 Sy| 138 49 379 Tc| 121 293 Number of 2-station scans: 290 Number of 3-station scans: 87 Number of 4-station scans: 56 Number of 5-station scans: 29 Number of 6-station scans: 4 Number of 7-station scans: 0 Total # of scans, observations: 466 1237 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: FORTLEZA 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) 32 135.00 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: HARTRAO KOKEE TIGOCONC Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 128.000 Mbits 64.000 MHz 14 1 16 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 16(*2) 32 80.00 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: HOBART26 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 80.00 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 ===========================================================