IVS-OHG119 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2019 JUN,04-05 doy 155-156 Nominal Start Time: 2019-155-1730 UT Nominal End Time: 2019-156-1730 UT Duration: 24.0 hr Correlator: Bonn Participating stations: ======================= Ag=AGGO Ft=FORTLEZA Ht=HART15M Ho=HOBART26 Ke=KATH12M Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Ww=WARK12M Yg=YARRA12M Contact ======= Arno Müskens mueskens@mpifr-bonn.mpg.de Matthias Schartner matthias.schartner@geo.tuwien.ac.at 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: ohg119 =========================================================== Experiment: OHG119 Description IVS-OHG119 Scheduler: BONN Correlator: BONN Start: 2019-155-17:30:00 End: 2019-156-17:30:00 Current yyyyddd: 2019155 (2019.42) ( 18639 MJD, TUES 4JUN.) =========================================================== First observations Observation listing from file /data3/schedules/ohg119.skd for experiment OHG119 Source Start DURATIONS name yyddd-hhmmss Ag Ft Ht Ho Ke Kk Oh Sy Ww Yg 0458-020 19155-173000| 566 484 427 566 | NRAO530 19155-173000| 82 31 85 114 114 89| 1510-089 19155-173218| 356 169 323 356 327| Last observations 1749+096 19156-170446| 171 229 135 229 222| 1057-797 19156-171956| 600 600 600 600 600 600 600 600 600| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 8.8 Min = 0.0 Max = 110.8 (Baseline Ft-Ke on NRAO530 ) RMS = 9.8 Total time: 1440 minutes ( 24.0 hours). Key: Ag=AGGO Ft=FORTLEZA Ht=HART15M Ho=HOBART26 Ke=KATH12M Kk=KOKEE Oh=OHIGGINS Sy=SYOWA Ww=WARK12M Yg=YARRA12M Ag Ft Ht Ho Ke Kk Oh Sy Ww Yg Avg % obs. time: 85 66 78 64 83 66 69 85 82 83 76 % cal. time: 2 2 2 3 3 2 2 2 3 3 2 % slew time: 3 28 13 29 9 11 9 3 8 9 13 % idle time: 9 3 6 3 3 19 20 8 7 4 9 total # scans: 181 181 207 231 250 212 150 209 242 248 211 # scans/hour : 8 8 9 10 10 9 6 9 10 10 9 Avg scan (sec): 405 313 324 240 288 270 395 350 293 291 316 # data tracks: 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 1.17 0.91 1.07 0.89 1.15 0.92 0.95 1.17 1.13 1.15 1.05 # OF OBSERVATIONS BY BASELINE | Ag Ft Ht Ho Ke Kk Oh Sy Ww Yg Total ------------------------------------------------------------ Ag| 168 120 12 6 46 127 93 17 10 599 Ft| 128 11 5 38 120 99 12 15 596 Ht| 72 73 0 101 164 49 87 794 Ho| 215 144 27 108 205 211 1005 Ke| 158 21 108 221 227 1034 Kk| 32 34 175 142 769 Oh| 87 30 27 572 Sy| 90 116 899 Ww| 203 1002 Yg| 1038 Number of 3-station scans: 89 Number of 4-station scans: 94 Number of 5-station scans: 178 Number of 6-station scans: 71 Number of 7-station scans: 18 Number of 8-station scans: 1 Number of 9-station scans: 2 Total number of scans: 453 Total number of obs: 4154 Total integrated obs-time: 1216204 Average obs-time: 292.8 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: AGGO 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: 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 ===========================================================