IVS-OHG101 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2016 Feb,10-11 doy 041-042 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 2016-041-1800 UT Nominal End Time: 2016-042-1800 UT Duration: 24.0 hr Correlator: Bonn Participating stations: ======================= Ht=HART15M Hb=HOBART12 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 ======== Katherine was scheduled tag-along mode. 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. Session Notes for session: ohg101 =========================================================== Experiment: OHG101 Description IVS-OHG101 Scheduler: IGGB/muesk Correlator: BONN Start: 2016-041-18:00:00 End: 2016-042-18:00:01 Current yyyyddd: 2016041 (2016.11) ( 17429 MJD, WED. 10FEB.) =========================================================== 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 ohg101.skd for experiment OHG101 Source Start DURATIONS name yyddd-hhmmss Ht Hb Ke Kk Oh Sy Ww Yg 0454-234 16041-180000| 50 408 408| 1921-293 16041-180000| 44 132 132 | 1424-418 16041-180824| 683 683 340 683| 1741-038 16041-195013| 163 85 163 | Last observations 1741-038 16042-173752| 840 840 840 604 | 0537-441 16042-174748| 34 221 221| 1334-127 16042-175310| 124 124 56 109 124| 1749+096 16042-175615| 103 48 103 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.9 Min = 0.0 Max = 50.9 (Baseline Ht-Oh on 0454-234) RMS = 5.4 Total time: 1438 minutes ( 24.0 hours). Key: Ht=HART15M Hb=HOBART12 Ke=KATH12M Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Ww=WARK12M Yg=YARRA12M Ht Hb Ke Kk Oh Sy Ww Yg Avg % obs. time: 25 79 63 50 60 76 78 84 64 % cal. time: 2 2 1 2 2 2 2 2 2 % slew time: 12 5 4 8 10 3 5 4 7 % idle time: 61 13 31 40 28 19 14 9 27 total # scans: 173 176 124 153 134 173 170 162 158 # scans/hour : 7 7 5 6 6 7 7 7 7 Avg scan (sec): 124 389 438 279 384 377 394 449 353 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total TB(M5): 0.3 1.1 0.9 0.7 0.8 1.0 1.1 1.2 0.9 # OF OBSERVATIONS BY BASELINE | Ht Hb Ke Kk Oh Sy Ww Yg Total -------------------------------------------------- Ht| 35 48 0 99 156 16 64 418 Hb| 84 130 9 27 145 103 533 Ke| 68 18 44 74 101 437 Kk| 25 8 139 84 454 Oh| 106 29 18 304 Sy| 13 61 415 Ww| 88 504 Yg| 519 Number of 3-station scans: 181 Number of 4-station scans: 99 Number of 5-station scans: 64 Number of 6-station scans: 1 Total number of scans: 345 Total number of obs: 1792 Total integrated obs-time: 538915 Average obs-time: 300.7 | Ht Hb Ke Kk Oh Sy Ww Yg AVG ------------------------------------------------- Ht| 34 32 - 47 48 33 38 43 Hb| 52 37 54 35 59 50 48 Ke| 40 24 28 49 57 45 Kk| 27 24 45 31 38 Oh| 44 40 34 42 Sy| 29 32 41 Ww| 47 49 Yg| 44 Average S-band SNRs by baseline | Ht Hb Ke Kk Oh Sy Ww Yg AVG ------------------------------------------------- Ht| 27 20 - 18 32 27 26 26 Hb| 23 31 18 22 26 24 26 Ke| 34 10 18 24 31 25 Kk| 23 25 41 32 34 Oh| 19 18 18 18 Sy| 27 22 25 Ww| 24 29 Yg| 27 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: HART15M 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 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: 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 ===========================================================