IVS-OHG116 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2018 Nov.14-15 doy 318-319 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 2018-318-1800 UT Nominal End Time: 2018-319-1800 UT Duration: 24.0 hr Correlator: Bonn Participating stations (8): ======================= Ht=HART15M Ho=HOBART26 Ke=KATH12M Kk=KOKEE Oh=OHIGGINS 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 15 min - use of CvgONLY in order to improve the geometry of observation This schedule was made using more than 100 sources which helped to improve the sky coverage. COMMENTS ======== 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. We have to vacate some satellite passages on OHIG station. That produce several observing gaps during this 24 hours. Session Notes for session: ohg116 =========================================================== Experiment: OHG116 Description IVS-OHG116 Scheduler: IGGB/muesk Correlator: BONN Start: 2018-318-18:00:00 End: 2018-319-18:00:01 Current yyyyddd: 2018318 (2018.87) ( 18437 MJD, WED. 14NOV.) =========================================================== First observations Observation listing from file ohg116.skd for experiment OHG116 Source Start DURATIONS name yyddd-hhmmss Ht Ho Ke Kk Oh Sy Ww Yg 0104-408 18318-180000| 385 546 546| 1424-418 18318-180000| 119 337 251 337 | OJ287 18318-180621| 24 24 21 | Last observations 0402-362 18319-171936| 190 678 678 | 0454-234 18319-172326| 76 215 215 | CTA26 18319-173233| 260 851 851| 1124-186 18319-173411| 258 663 264 663 | 0454-234 18319-174732| 82 60 261 261 221 147| 0104-408 18319-175219| 283 461 461 | 0552+398 18319-175308| 110 304 304| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.9 Min = 0.0 Max = 52.4 (Baseline Kk-Oh on 2227-088) RMS = 5.4 Total time: 1435 minutes ( 23.9 hours). Key: Ht=HART15M Ho=HOBART26 Ke=KATH12M Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Ww=WARK12M Yg=YARRA12M Ht Ho Ke Kk Oh Sy Ww Yg Avg % obs. time: 30 46 78 41 54 75 72 78 59 % cal. time: 2 2 2 2 1 2 2 2 2 % slew time: 12 29 7 8 8 3 6 7 11 % idle time: 55 22 12 48 36 20 19 13 28 total # scans: 163 201 174 156 100 151 175 179 162 # scans/hour : 7 8 7 7 4 6 7 7 7 Avg scan (sec): 158 195 386 228 461 427 357 374 322 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total TB(M5): 0.41 0.63 1.07 0.57 0.74 1.03 1.00 1.07 0.82 # OF OBSERVATIONS BY BASELINE | Ht Ho Ke Kk Oh Sy Ww Yg Total -------------------------------------------------- Ht| 56 44 0 76 123 20 73 392 Ho| 129 120 18 38 134 111 606 Ke| 100 2 27 126 131 559 Kk| 19 13 122 84 458 Oh| 78 14 4 211 Sy| 28 51 358 Ww| 103 547 Yg| 557 Number of 3-station scans: 219 Number of 4-station scans: 61 Number of 5-station scans: 71 Number of 6-station scans: 6 Number of 7-station scans: 1 Total number of scans: 358 Total number of obs: 1844 Total integrated obs-time: 433993 Average obs-time: 235.4 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: HART15M 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 4.00 MHz 1 16(*1) 16 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 for: HOBART26 OHIGGINS 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 4.00 MHz 1 16(*2) 32 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 ===========================================================