IVS-OHIG49 (Continuous Observations of the Rotation of the Earth and South terrestical reference frame network) 2007 Feb. 13/14 doy 044/045 Insitute for Geodesy and Geoinformtion of the University of Bonn, Germany Correlator: see Multi Agency Schedule 2007 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. =========================================================== Parameter values for experiment OHIG49 Experiment description: IVS-OHIG49 Scheduler: mueskens Correlator: BONN Nominal start: 2007-044-17:30:00 Nominal end: 2007-045-17:30:01 Current yyyyddd: 2007044 (2007.12) ( 14145 MJD, TUES 13FEB.) Greenwich sidereal time: 3: 3:28.00 (17:30: 0 UT) Sun's RA and DEC: 21h 47.7m -13d 18.7 =========================================================== There are no observations for Kokee from 18:30 U.T. to 19:30 U.T. Kokee will participate in the intensive session during this one hour period. =========================================================== First observations Observation listing from file ohig49.skd for experiment OHIG49 Source Start DURATIONS name yyddd-hhmmss Ft Hh Ho Kk Oh Sy Tc 1954-388 07044-173000| 313 115 440 720 575 720| 0637-752 07044-173557| 136 136 | =========================================================== Last observations 1954-388 07045-170851| 313 112 461 720 568 720| OJ287 07045-171633| 84 84 | 1958-179 07045-171855| 154 154 | 0727-115 07045-172042| 50 50 | 1749+096 07045-172226| 166 166| End of listing. =========================================================== Average number of obs. per baseline per source (normalized by up-time) = 4.2 Min = .0 Max = 46.5 (Baseline Hh-Ho on 1741-038) RMS = 8.5 Total time: 1435 minutes ( 23.9 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: 46 34 39 46 64 62 56 49 % cal. time: 2 2 3 2 1 2 1 2 % slew time: 24 39 40 10 10 2 4 19 % idle time: 27 24 18 40 24 34 38 30 total # scans: 165 200 251 201 113 147 115 170 # scans/hour : 6.9 8.4 10.5 8.4 4.7 6.1 4.8 7.1 Avg scan (sec): 243 145 132 199 485 361 416 282 Total GBytes: 721 523 598 720 987 956 860 766 Total GB(M5): 640 465 532 640 878 850 765 681 # of tapes : 4.6 .9 1.0 1.2 1.7 2.9 1.5 Total number of tapes: 13.9 Total GBytes (M5) recorded: 4768.4 # OF OBSERVATIONS BY BASELINE | Ft Hh Ho Kk Oh Sy Tc StnTotal ------------------------------------------ Ft|165 90 15 48 48 39 55 295 Hh| 200 94 0 46 95 21 346 Ho| 251 120 55 84 23 391 Kk| 201 28 9 61 266 Oh| 113 73 42 292 Sy| 147 31 331 Tc| 115 233 Number of 2-station scans: 308 Number of 3-station scans: 102 Number of 4-station scans: 43 Number of 5-station scans: 16 Number of 6-station scans: 3 Number of 7-station scans: 0 Total # of scans, observations: 472 1077 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: FORTLEZA 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) 32 135.00 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 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 =========================================================== Tape types ID Station Tape length Density Passes Ft FORTLEZA 8700feet (Thick ) 33333 (Low ) 14 Hh HARTRAO 17400feet (Thin ) 56250 (HIGH ) 14 Ho HOBART26 17400feet (Thin ) 56250 (HIGH ) 14 Kk KOKEE 17400feet (Thin ) 56250 (HIGH ) 14 Oh OHIGGINS 17400feet (Thin ) 56250 (HIGH ) 14 Sy SYOWA 17400feet (Thin ) 33333 (Low ) 14 Tc TIGOCONC 17400feet (Thin ) 56250 (HIGH ) 14 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 3) S-band (margin 3) Ft Hh Ho Kk Oh Sy Ft Hh Ho Kk Oh Sy Hh 22 Hh 22 Ho 22 22 Ho 22 22 Kk 22 22 22 Kk 22 22 22 Oh 18 18 18 18 Oh 18 18 18 18 Sy 20 20 20 20 20 Sy 20 20 20 20 20 Tc 20 20 20 20 20 20 Tc 20 20 20 20 20 20