IVS-T2100 (International VLBI Service - Terrestical Reference Frame Observations) 2014 Nov.11-12 doy 315-316 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2014:315:17h30 UT Nominal End Time: 2014:316:17h30 UT Duration: 24.0 hr Correlator: HAYS Participating stations (15): ====================== Ai=AIRA Cc=CHICHI10 Sm=CRIMEA Ft=FORTLEZA Hh=HARTRAO K1=KASHIM11 Km=KUNMING Kg=KOGANEI Nt=NOTO Ny=NYALES20 Ts=TSUKUB32 Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Zc=ZELENCHK 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, 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 Session Notes for session: t2100a =========================================================== Experiment: T2100 Description IVS-T2.100 Scheduler: IGGB/Muesk Correlator: BONN Start: 2014-315-17:30:00 End: 2014-316-17:30:01 Current yyyyddd: 2014315 (2014.86) ( 16973 MJD, TUES 11NOV.) =========================================================== 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 t2100.skd for experiment T2100 Source Start DURATIONS name yyddd-hhmmss Ai Cc Sm Ft Hh K1 Km Kg Nt Ny Ts Vs Vm Wz Zc 0059+581 14315-173000| 207 213 205 20 109 118 15 396 396 137 48| 1954-388 14315-173000| 575 575 317 | 0119+115 14315-173329| 15 15 15| 0537-441 14315-173435| 258 252 258 27 135 15 | 1923+210 14315-173703| 60 60 30 28| 0133+476 14315-173758| 20 20 15 | 0552+398 14315-174056| 351 361 543 270 30 147 120 19 647 647 165 68| Last observations 0059+581 14316-171302| 207 213 178 205 20 109 119 15 396 396 48| 2215+150 14316-172101| 111 198 198 148 133| 3C446 14316-172638| 122 122 73 82 66 68| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 2.1 Min = 0.0 Max = 47.3 (Baseline Cc-Km on 1424-418) RMS = 6.0 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Sm=CRIMEA Ft=FORTLEZA Hh=HARTRAO K1=KASHIM11 Km=KUNMING Kg=KOGANEI Nt=NOTO Ny=NYALES20 Ts=TSUKUB32 Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Zc=ZELENCHK Ai Cc Sm Ft Hh K1 Km Kg Nt Ny Ts Vs Vm Wz Zc Avg % obs. time: 65 66 21 59 47 54 20 44 39 56 7 73 74 37 26 46 % cal. time: 2 2 1 2 2 2 3 3 3 2 3 2 2 3 3 2 % slew time: 6 5 12 24 35 8 28 9 35 11 14 6 8 8 39 17 % idle time: 26 26 66 14 15 35 48 44 23 30 75 19 16 51 30 35 total # scans: 161 160 77 154 171 209 238 229 240 197 252 130 144 236 251 189 # scans/hour : 7 7 3 6 7 9 10 10 10 8 11 5 6 10 10 8 Avg scan (sec): 351 355 233 329 239 223 72 166 139 244 24 483 441 134 91 234 # 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 TBytes: 1.0 1.0 0.3 0.9 0.7 0.8 0.3 0.7 0.6 0.9 0.1 1.1 1.1 0.6 0.4 0.7 # OF OBSERVATIONS BY BASELINE | Ai Cc Sm Ft Hh K1 Km Kg Nt Ny Ts Vs Vm Wz Zc Total ------------------------------------------------------------------------------------- Ai| 136 49 0 14 125 89 126 10 32 127 107 88 16 40 959 Cc| 41 0 12 129 81 127 7 25 132 100 90 11 31 922 Sm| 11 25 42 50 42 13 30 44 39 32 20 43 481 Ft| 104 0 27 0 138 82 1 0 0 114 78 555 Hh| 9 69 11 128 48 11 22 9 92 107 661 K1| 98 202 11 46 201 81 131 21 38 1134 Km| 121 57 75 138 87 67 68 111 1138 Kg| 16 58 222 83 127 26 46 1207 Nt| 96 25 4 8 190 171 874 Ny| 69 24 39 126 123 873 Ts| 87 128 35 57 1277 Vs| 72 9 26 741 Vm| 20 33 844 Wz| 182 930 Zc| 1086 Total number of scans: 574 Total number of obs: 6841 Total integrated obs-time: 981064 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA CHICHI10 CRIMEA HARTRAO KASHIM11 KUNMING KOGANEI NYALES20 TSUKUB32 VERAMZSW ZELENCHK 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 Recording mode setup for: FORTLEZA NOTO VERAISGK WETTZELL 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 ===========================================================