IVS-OHIG94 (Continuous Observations of the Rotation of the Earth and South Terrestical Reference Frame Network) 2015 Feb.04-05 doy 035-036 Institut for Geodesy and Geoinformtion (IGGB) of the University of Bonn, Germany Nominal Start Time: 2015-035-1800 UT Nominal End Time: 2015-036-1800 UT Duration: 24.0 hr Correlator: Bonn Participating stations: =================== Ft FORTLEZA (down) Hh HARTRAO Hb HOBART12 Ke KATH12M Kk KOKEE 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 ======== Fortaleza is down due to elevation drive problems. Session Notes for session: ohig94 =========================================================== Experiment: OHIG94 Description IVS-OHIG94 Scheduler: IGGB/muesk Correlator: BONN Start: 2015-035-18:00:00 End: 2015-036-18:00:01 Current yyyyddd: 2015035 (2015.10) ( 17058 MJD, WED. 4FEB.) =========================================================== 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. For Ohiggins there are no observation due to satelite observations. Oh 2015-035-21:08:00 2015-035-21:21:00 Oh 2015-035-22:42:00 2015-035-22:56:00 Oh 2015-036-00:16:00 2015-036-00:29:00 Oh 2015-036-06:26:00 2015-036-06:38:00 Oh 2015-036-07:58:00 2015-036-08:12:00 Oh 2015-036-09:32:00 2015-036-09:46:00 =========================================================== First observations Observation listing from file ohig94.skd for experiment OHIG94 Source Start DURATIONS name yyddd-hhmmss Ht Hb Ke Kk Oh Sy Ww Yg 0537-441 15035-180000| 67 238 631 631 438| 1424-418 15035-180000| 372 777 777 | Last observations 1424-418 15036-173355| 370 798 798 | 0727-115 15036-173413| 80 228 302 302 185| 1921-293 15036-174827| 53 229 229 | 0537-441 15036-174902| 71 101 101| 1741-038 15036-175252| 263 132 263 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 2.2 Min = 0.0 Max = 55.4 (Baseline Oh-Sy on 1749+096) RMS = 5.7 Total time: 1437 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: 30 74 81 38 70 78 74 77 66 % cal. time: 2 2 2 1 1 1 2 2 2 % slew time: 8 5 5 5 7 2 5 5 6 % idle time: 59 18 11 54 20 17 18 15 27 total # scans: 130 165 161 106 102 126 140 161 136 # scans/hour : 5 7 7 4 4 5 6 7 6 Avg scan (sec): 200 389 436 311 596 536 458 414 417 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total TBytes: 0.5 1.2 1.3 0.6 1.1 1.2 1.2 1.2 1.0 # OF OBSERVATIONS BY BASELINE | Ht Hb Ke Kk Oh Sy Ww Yg Total -------------------------------------------------- Ht| 36 32 0 78 103 8 46 303 Hb| 140 81 7 21 111 126 522 Ke| 77 3 13 113 131 509 Kk| 16 10 79 66 329 Oh| 92 16 6 218 Sy| 13 29 281 Ww| 93 433 Yg| 497 Number of 3-station scans: 161 Number of 4-station scans: 78 Number of 5-station scans: 58 Number of 6-station scans: 1 Total number of scans: 298 Total number of obs: 1546 ========================================================= Recording mode Name Code EUR2-SX SX Recording mode setup 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 Speed 4.00 MHz 1 16(*2) 32 0.00 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 setup 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 Speed 4.00 MHz 1 16(*1) 16 0.00 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 ===========================================================