IVS-OHG111 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2018 Feb.06-07 doy 037-038 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 2018-037-1730 UT Nominal End Time: 2018-038-1730 UT Duration: 24.0 hr Correlator: Bonn Participating stations (8): ======================= Ft=FORTLEZA Ht=HART15M 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 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. 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: ohg111 =========================================================== Experiment: OHG111 Description IVS-OHG111 Scheduler: IGGB/muesk Correlator: BONN Start: 2018-037-17:30:00 End: 2018-038-17:30:01 Current yyyyddd: 2018037 (2018.10) ( 18156 MJD, TUES 6FEB.) =========================================================== First observations Observation listing from file ohg111.skd for experiment OHG111 Source Start DURATIONS name yyddd-hhmmss Ft Ht Ke Kk Oh Sy Ww Yg 0454-234 18037-173000| 870 156 870 | 1424-418 18037-173000| 361 463 463 220 223| 0727-115 18037-173841| 39 180 180 129| Last observations 0454-234 18038-165550| 864 152 864 785 | 1334-127 18038-170616| 156 61 156 133| 1156+295 18038-170958| 174 107 212 212| 0537-441 18038-171043| 224 634 634 | OJ287 18038-171548| 105 105 91| 1030+415 18038-171806| 704 170 704| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 2.0 Min = 0.0 Max = 137.1 (Baseline Kk-Oh on 0727-115) RMS = 7.0 Total time: 1440 minutes ( 24.0 hours). Key: Ft=FORTLEZA Ht=HART15M Ke=KATH12M Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Ww=WARK12M Yg=YARRA12M Ft Ht Ke Kk Oh Sy Ww Yg Avg % obs. time: 66 24 76 46 72 68 69 75 62 % cal. time: 1 2 2 2 1 1 2 2 2 % slew time: 15 10 8 7 7 2 5 7 8 % idle time: 16 64 13 44 19 28 23 14 28 total # scans: 100 132 195 139 110 119 167 181 142 # scans/hour : 4 6 8 6 5 5 7 8 6 Avg scan (sec): 570 155 339 289 563 490 358 359 389 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total TB(M5): 0.91 0.33 1.06 0.64 0.99 0.93 0.96 1.04 0.86 # OF OBSERVATIONS BY BASELINE | Ft Ht Ke Kk Oh Sy Ww Yg Total -------------------------------------------------- Ft| 72 1 12 88 58 6 3 240 Ht| 34 0 73 82 14 45 320 Ke| 120 2 30 150 168 505 Kk| 19 9 110 95 365 Oh| 65 13 3 263 Sy| 27 43 314 Ww| 123 443 Yg| 480 Number of 3-station scans: 183 Number of 4-station scans: 136 Number of 5-station scans: 10 Total number of scans: 329 Total number of obs: 1465 Total integrated obs-time: 446692 Average obs-time: 304.9 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: FORTLEZA 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 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 ===========================================================