IVS-OHG110 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2017 Nov,08-09 doy 312-313 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 2017-312-1800 UT Nominal End Time: 2017-313-1800 UT Duration: 24.0 hr Correlator: Bonn Participating stations: ======================= Ft=FORTLEZA 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 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: ohg110 =========================================================== Experiment: OHG110 Description IVS-OHG110 Scheduler: IGGB/muesk Correlator: BONN Start: 2017-312-18:00:00 End: 2017-313-18:00:01 Current yyyyddd: 2017312 (2017.85) ( 18066 MJD, WED. 8NOV.) =========================================================== First observations Observation listing from file ohg110.skd for experiment OHG110 Source Start DURATIONS name yyddd-hhmmss Ft Ht Ho Ke Kk Oh Sy Ww Yg 1057-797 17312-180000| 375 146 890 900 900| 1424-418 17312-180000| 376 305 376 | 0727-115 17312-193724| 43 20 43| Last observations 1424-418 17313-173644| 878 347 878 | 0537-441 17313-174806| 129 312 312 | 0727-115 17313-175002| 20 43 22 43| OJ287 17313-175208| 29 107 327 69 327| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.3 Min = 0.0 Max = 274.3 (Baseline Kk-Oh on 0727-115) RMS = 6.2 Total time: 1433 minutes ( 23.9 hours). Key: Ft=FORTLEZA Ht=HART15M Ho=HOBART26 Ke=KATH12M Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Ww=WARK12M Yg=YARRA12M Ft Ht Ho Ke Kk Oh Sy Ww Yg Avg % obs. time: 64 39 40 77 55 54 74 71 73 61 % cal. time: 1 2 2 2 2 1 2 2 2 2 % slew time: 15 10 28 6 7 8 2 5 7 11 % idle time: 19 48 28 13 34 35 22 20 17 27 total # scans: 104 152 205 166 164 102 133 166 178 152 # scans/hour : 4 6 9 7 7 4 6 7 7 6 Avg scan (sec): 527 222 167 401 290 456 479 370 353 362 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 Total TB(M5): 0.9 0.5 0.5 1.1 0.8 0.7 1.0 1.0 1.0 0.8 # OF OBSERVATIONS BY BASELINE | Ft Ht Ho Ke Kk Oh Sy Ww Yg Total ------------------------------------------------------- Ft| 70 12 0 13 70 56 6 4 231 Ht| 58 33 0 53 76 20 49 359 Ho| 110 117 14 41 121 108 581 Ke| 95 1 29 97 127 492 Kk| 20 13 103 87 448 Oh| 60 14 0 232 Sy| 29 37 341 Ww| 100 490 Yg| 512 Number of 3-station scans: 279 Number of 4-station scans: 51 Number of 5-station scans: 49 Number of 6-station scans: 14 Total number of scans: 393 Total number of obs: 1843 Total integrated obs-time: 483713 Average obs-time: 262.5 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: FORTLEZA 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 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 ===========================================================