IVS-T2077 (International VLBI Service - Terrestical Reference Frame Observations) 2011 Aug.23-24 doy 235-236 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 17h30 UT Nominal End Time: 17h30 UT Duration: 24.0 hr Correlator: see master schedule file Participating stations: Code=Station =========== Cc=CHICHI10 13=DSS13 Ft=FORTLEZA K1=KASHIM11 Km=KUNMING Kg=KOGANEI Mc=MEDICINA On=ONSALA60 Ts=TSUKUB32 Tc=TIGO Mh=METSAHOV Ur=URUMQI Vm=VERAMZSW Sh=SESHAN25 Ny=NYALES20 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 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 40 sec. and the most recent source flux models are included. SNR goals are 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 - using 63 source for improving the sky covorage (and some new astrometric sources / see $ASTROMETRIC ) Session Notes for session: t2077 =========================================================== Experiment: T2077 Description IVS-T2.077 Scheduler: IGGB/Muesk Correlator: HAYS Start: 2011-235-17:30:00 End: 2011-236-17:30:01 Current yyyyddd: 2011235 (2011.64) ( 15797 MJD, TUES 23AUG.) =========================================================== 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 t2077.skd for experiment T2077 Source Start DURATIONS name yyddd-hhmmss Cc 13 Ft K1 Kg Km Mc Ny On Sh Tc Ts Ur Vs Vm Wz Zc 0552+398 11235-173000| 275 49 161 112 110 271 43 40 66 486 486 | 2355-106 11235-173301| 288 288 102 | 1741-038 11235-173447| 223 99 46 223 46 40| Last observations 0332-403 11236-171142| 720 720 | 1921-293 11236-171153| 40 40 40 40| 0119+115 11236-171306| 601 602 602 | 2008-159 11236-171402| 121 343 285 95 343 326 131| 0454-234 11236-171930| 40 40 | 1546+027 11236-172125| 122 161 161 99 61| 0134+311 11236-172136| 204 204 | 0743+277 11236-172155| 84 84 | 1351-018 11236-172426| 276 276 222 144| 0727-115 11236-172435| 40 219 219 | 0748+126 11236-172612| 40 40 | 2052-474 11236-172722| 58 58 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.9 Min = 0.0 Max = 55.4 (Baseline Ts-Wz on 2008-159) RMS = 5.8 Total time: 1439 minutes ( 24.0 hours). Key: Cc=CHICHI10 13=DSS13 Ft=FORTLEZA K1=KASHIM11 Kg=KOGANEI Km=KUNMING Mc=MEDICINA Ny=NYALES20 On=ONSALA60 Sh=SESHAN25 Tc=TIGO Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Zc=ZELENCHK Cc 13 Ft K1 Kg Km Mc Ny On Sh Tc Ts Ur Vs Vm Wz Zc Avg % obs. time: 50 28 48 64 61 28 43 47 53 39 49 26 45 45 39 36 22 42 % cal. time: 2 3 2 2 2 3 2 2 2 3 2 4 3 1 1 2 3 2 % slew time: 5 35 25 6 6 32 29 12 10 32 6 16 27 5 6 7 35 18 % idle time: 43 33 24 27 29 36 25 37 34 25 42 54 24 48 53 53 40 38 total # scans: 138 259 140 172 174 269 212 200 144 267 147 315 227 98 103 207 222 193 # scans/hour : 6 11 6 7 7 11 9 8 6 11 6 13 9 4 4 9 9 8 Avg scan (sec): 311 94 298 319 304 89 174 205 317 127 289 71 173 393 323 150 84 218 # 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: 774 439 750 987 951 430 665 737 822 611 764 402 705 694 599 559 334 660 Total GB(M5): 688 390 667 877 845 382 591 655 730 543 680 357 627 617 533 497 297 587 Total GBytes (M5) recorded: 9975.0 # OF OBSERVATIONS BY BASELINE | Cc 13 Ft K1 Kg Km Mc Ny On Sh Tc Ts Ur Vs Vm Wz Zc StnTotal ----------------------------------------------------------------------------------------------- Cc| 39 0 80 80 88 32 43 40 105 1 119 68 61 52 33 41 882 13| 83 52 54 55 67 79 47 64 107 81 53 18 19 68 55 941 Ft| 9 9 14 53 36 34 11 80 10 19 0 0 49 37 444 K1| 153 120 59 82 56 137 1 160 111 56 57 59 72 1264 Kg| 127 59 84 57 145 1 162 117 55 59 59 74 1295 Km| 98 112 76 221 0 205 180 72 67 99 124 1658 Mc| 134 117 86 23 83 112 21 24 191 169 1328 Ny| 105 107 12 106 127 35 33 137 131 1363 On| 70 18 64 84 26 23 112 107 1036 Sh| 0 225 174 82 74 88 108 1697 Tc| 5 0 0 1 22 11 282 Ts| 163 77 93 88 102 1743 Ur| 50 48 113 144 1563 Vs| 42 23 31 649 Vm| 23 31 646 Wz| 165 1329 Zc| 1402 Total # of scans, observations: 695 9761 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: CHICHI10 DSS13 FORTLEZA KASHIM11 KOGANEI MEDICINA NYALES20 ONSALA60 SESHAN25 TIGOCONC TSUKUB32 URUMQI VERAISGK VERAMZSW WETTZELL ZELENCHK 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: KUNMING 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 80.00 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 ===========================================================