IVS-T2095 (International VLBI Service - Terrestical Reference Frame Observations) 2014 Feb.18-19 doy 049-050 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2014:049:17h30 UT Nominal End Time: 2014:050:17h30 UT Duration: 24.0 hr Correlator: BONN Participating stations (15): ====================== Ai=AIRA Cc=CHICHI10 Sm=CRIMEA K1=KASHIM11 Ke=KATH12M Kg=KOGANEI Ma=MATERA Ny=NYALES20 Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Ww=WARK12M Wz=WETTZELL Yg=YARRA12M Purpose ======= General the purpose of the IVS-T2 sessions is to monitor the TRF via monthly sessions. Since April 2004 the purpose of the remaining IVS-T2 sessions has been changed by the IVS OPC (Observing Program Committee). The new plan uses larger networks for each T2 session, say 16 to 24 stations, but have fewer T2 sessions during the year. The larger network should provide a stronger solution and better TRF results, even if there are fewer sessions each year. The TRF determine from single session solutions or from a global solution is very important IVS product because this is an essential part for creating the ITRF by corresponding IERS Product Center. A particular strength of VLBI is its contribution to the scale of the ITRF. Usually the TRF is computed from the 24h sessions that are dedicated to observing the EOP. Network ======= The standard configuration of the monthly observed IVS-T2 experiments consists of sixteen and more stations. All stations differ in some extent between all available IVS geodetic network stations from experiment to experiment. Schedule ======== This schedule was generated by the last updated SKED version using the EUR-SX band and the 64-16(EU-T2) EURSX-C-4 frequency setup, depending on which station are available for this observation. Variable scan lengths with a minimum 15 sec. and the most recent source flux models are included. SNR goals are around 20 at X-band and S-band depent on different baselines and stations. The predicted SNRs used include a 30 ps noise contribution added in quadrature, which is a typical magnitude for the reweight constants applied in SOLVE solutions. Some important optimization features enabled for this experiment : - the covariance analysis during schedule generation considers the previous 1 hours of observations, - minor SKED optimization parameters . maximum number of observations, . minimum time, Ts TSUKUB32mized 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 Comment ======= DSS45, HOBART12, Ohiggins and Westford cannot participate in this experiment. Session Notes for session: t2095 =========================================================== Experiment: T2095 Description IVS-T2.095 Scheduler: IGGB/Muesk Correlator: BONN Start: 2014-049-17:30:00 End: 2014-050-17:30:01 Current yyyyddd: 2014049 (2014.13) ( 16707 MJD, TUES 18FEB.) =========================================================== There are no observations for Wettzell from 18:20 U.T. to 19:40 U.T. Wettzell will participate in the intensive session during this 1.5 hour period. =========================================================== First observations Observation listing from file t2095.skd for experiment T2095 Source Start DURATIONS name yyddd-hhmmss Ai Cc Sm K1 Ke Kg Ma Ny Ts Ur Vs Vm Ww Wz Yg 0059+581 14049-173000| 48 56 49 56 27 | 1424-418 14049-173000| 229 210 91 157 91 15 413 392 413 286| =========================================================== Last observations 1324+224 14050-171258| 259 75 344 344 | 0454-234 14050-171934| 327 447 303 447| 1749+096 14050-172020| 335 345 329 174 18 345 | 1519-273 14050-172126| 73 73 | 1803+784 14050-172355| 197 197 29 101 | NRAO512 14050-172512| 101 101 | 0800+618 14050-172758| 84 84 | CTA26 14050-172919| 35 35 30 19 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.0 Min = 0.0 Max = 67.0 (Baseline Ur-Wz on 1921-293) RMS = 4.4 Total time: 1440 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Sm=CRIMEA K1=KASHIM11 Ke=KATH12M Kg=KOGANEI Ma=MATERA Ny=NYALES20 Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Ww=WARK12M Wz=WETTZELL Yg=YARRA12M Ai Cc Sm K1 Ke Kg Ma Ny Ts Ur Vs Vm Ww Wz Yg Avg % obs. time: 64 65 45 63 65 60 45 45 45 43 62 50 49 35 58 53 % cal. time: 2 2 2 2 2 3 2 3 5 3 1 1 1 2 2 2 % slew time: 5 5 30 6 5 8 18 15 19 30 6 7 4 8 4 12 % idle time: 29 28 22 29 26 28 34 36 31 23 29 41 45 54 35 33 total # scans: 140 142 200 168 160 221 194 227 391 249 119 123 119 215 130 186 # scans/hour : 6 6 8 7 7 9 8 9 16 10 5 5 5 9 5 8 Avg scan (sec): 397 393 192 323 354 234 200 172 100 150 449 349 355 141 384 278 # data tracks: 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Total GBytes: 1000 1003 693 975 1018 932 700 703 703 671 962 773 760 545 898 822 Total GB(M5): 889 892 616 867 905 828 622 625 625 596 855 687 675 484 798 731 Total GBytes (M5) recorded: 10964.1 # OF OBSERVATIONS BY BASELINE | Ai Cc Sm K1 Ke Kg Ma Ny Ts Ur Vs Vm Ww Wz Yg Total ------------------------------------------------------------------------------------- Ai| 117 32 102 76 102 25 47 114 78 89 41 12 36 40 911 Cc| 27 104 77 102 19 42 124 71 86 42 12 29 39 891 Sm| 38 28 53 161 119 71 117 30 23 2 146 16 863 K1| 82 151 29 65 144 98 82 59 21 43 42 1060 Ke| 86 19 34 98 69 71 32 49 23 85 829 Kg| 45 85 191 126 86 65 24 57 45 1218 Ma| 117 61 101 22 16 0 148 18 781 Ny| 113 146 44 45 8 156 16 1037 Ts| 152 98 106 74 75 63 1484 Ur| 71 54 16 130 37 1266 Vs| 30 8 34 34 785 Vm| 6 23 11 553 Ww| 0 47 279 Wz| 14 914 Yg| 507 Total # of scans, observations: 697 6689 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA CHICHI10 CRIMEA KASHIM11 KATH12M KOGANEI MATERA NYALES20 TSUKUB32 URUMQI VERAMZSW WARK12M YARRA12M Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:1 128.000 Mbits 64.000 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 channels recorded per sub-pass X S Total 10.000 6.000 16.000 Recording mode setup for: VERAISGK WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 128.000 Mbits 64.000 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 channels recorded per sub-pass X S Total 10.000 6.000 16.000 ===========================================================