IVS-T2089 (International VLBI Service - Terrestical Reference Frame Observations) 2013 Apr,23-24 doy 113-114 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2013:113:17h30 UT Nominal End Time: 2013:114:17h30 UT Duration: 24.0 hr Correlator: BONN skedfile: t2089.skd Participating stations: ====================== AIRA CHICHI10 FORTLEZA HARTRAO KASHIM11 KOKEE KOGANEI MEDICINA NYALES20 OHIGGINS ONSALA60 TIGOCONC TSUKUB32 VERAISGK VERAMZSW WETTZELL 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 20 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: t2089a =========================================================== Experiment: T2089 Description IVS-T2.089 Scheduler: IGGB/Muesk Correlator: HAYS Start: 2013-113-17:30:00 End: 2013-114-17:30:01 =========================================================== There are no observations for Tsukuba and Wettzell from 18:20 U.T. to 19:40 U.T. Both stations will participate in the intensive session during this 1.5 hour period. =========================================================== First observations Observation listing from file t2089.skd for experiment T2089 Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc Sm Hh Kb K1 Km Kg Ma Mh Ny Sh Ts Vs Vm Wz 0059+581 13113-173000| 525 28 39 257 254 256 525 71 75 32 98| 1921-293 13113-173335| 48 20 20 20 175 175 | 1741-038 13113-173521| 40 176 27 176 35 176 68 23 | 1622-253 13113-173719| 52 67 101 31 101 | 0748+126 13113-173732| 71 86 65 86 29| Last observations 1741-038 13114-170253| 637 56 651 40 46 96 34 651 | 1921-293 13114-171259| 20 20 | NRAO512 13114-171729| 719 136 719 111 628 640 424 344| 1846+322 13114-172339| 127 370 370 107 | OJ287 13114-172447| 130 270 270 226 83| 0420+022 13114-172654| 102 102| 2250+194 13114-172724| 109 109 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 0.9 Min = 0.0 Max = 51.4 (Baseline Kb-Ma on 1124-186) RMS = 4.0 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Bd=BADARY Cc=CHICHI10 Sm=CRIMEA Hh=HARTRAO Kb=KASHIM34 K1=KASHIM11 Km=KUNMING Kg=KOGANEI Ma=MATERA Mh=METSAHOV Ny=NYALES20 Sh=SESHAN25 Ts=TSUKUB32 Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Ai Bd Cc Sm Hh Kb K1 Km Kg Ma Mh Ny Sh Ts Vs Vm Wz Avg % obs. time: 50 31 55 53 42 31 57 32 56 60 40 47 47 25 38 26 40 43 % cal. time: 1 3 1 2 1 3 2 3 2 2 1 2 3 3 1 1 3 2 % slew time: 4 36 3 24 22 39 6 30 6 14 15 11 25 14 4 5 9 16 % idle time: 44 29 40 20 33 26 35 34 35 24 43 39 25 56 56 67 47 39 total # scans: 109 234 101 153 120 290 147 266 161 148 104 178 231 292 83 79 221 171 # scans/hour : 5 10 4 6 5 12 6 11 7 6 4 7 10 12 3 3 9 7 Avg scan (sec): 399 114 469 302 304 91 334 104 301 350 331 228 175 75 396 283 158 259 # data tracks: 16 16 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 16 16 Total GBytes: 783 482 852 831 656 475 885 498 872 933 620 729 727 396 592 402 629 668 Total GB(M5): 696 428 758 738 583 422 786 442 775 830 551 648 646 352 526 357 559 594 Total GBytes (M5) recorded: 10100.0 # OF OBSERVATIONS BY BASELINE | Ai Bd Cc Sm Hh Kb K1 Km Kg Ma Mh Ny Sh Ts Vs Vm Wz StnTotal ----------------------------------------------------------------------------------------------- Ai| 53 65 29 8 81 62 65 68 29 6 38 70 81 50 27 31 763 Bd| 64 93 51 178 92 192 98 83 43 120 171 172 35 25 118 1588 Cc| 38 8 89 75 71 78 38 4 45 76 84 45 24 38 842 Sm| 67 75 53 98 53 125 53 95 83 78 20 11 111 1082 Hh| 31 11 61 11 65 47 39 42 32 8 0 78 559 Kb| 126 192 135 69 27 95 198 264 57 53 88 1758 K1| 101 122 50 8 62 105 124 42 35 57 1125 Km| 107 87 41 101 196 186 55 35 112 1700 Kg| 51 8 65 117 127 49 39 54 1182 Ma| 55 90 74 71 19 14 116 1036 Mh| 59 29 31 2 5 79 497 Ny| 95 97 20 23 135 1179 Sh| 187 49 34 89 1615 Ts| 59 51 95 1739 Vs| 24 18 552 Vm| 18 418 Wz| 1237 Total # of scans, observations: 553 9436 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 CRIMEA HARTRAO KASHIM11 KUNMING KOGANEI MATERA NYALES20 SESHAN25 TSUKUB32 VERAMZSW 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: KASHIM34 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 Recording mode setup for: METSAHOV Mode Tot.Rate Tot.BandW #chan #bits Barrel VLBA1:2 128.000 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 ===========================================================