IVS-T2098 (International VLBI Service - Terrestical Reference Frame Observations) 2014 Aug,19-20 doy 231-232 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2014:231:17h30 UT Nominal End Time: 2014:232:17h30 UT Duration: 24.0 hr Correlator: HAYS Participating stations (16): ====================== Ai=AIRA Bd=BADARY Cc=CHICHI10 13=DSS13 Hh=HARTRAO Kb=KASHIM34 Km=KUNMING Mh=METSAHOV Ny=NYALES20 Sh=SESHAN25 Sv=SVETLOE Ts=TSUKUB32 Vm=VERAMZSW Wf=WESTFORD Ys=YEBES40M Wz=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 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 Comment ======= DSS13 was scheduled in tag-alog mode Session Notes for session: t2098new.skd =========================================================== Experiment: T2098 Description IVS-T2.098 Scheduler: IGGB/Muesk Correlator: BONN Start: 2014-231-17:30:00 End: 2014-232-17:30:01 Current yyyyddd: 2014231 (2014.63) ( 16889 MJD, TUES 19AUG.) =========================================================== 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 t2098new.skd for experiment T2098 Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc 13 Hh Kb Km Mh Ny Sh Sv Ts Vm Wf Wz Ys 0420-014 14231-173000| 290 290 18 18 290 | 1749+096 14231-173000| 75 458 73 458 154 164 59 114 171| 1920-211 14231-173339| 100 217 217 | 1958-179 14231-173551| 92 92 | OJ287 14231-173606| 18 40 31 40| Last observations CTA26 14232-171838| 437 435 190 26 71 22 437 | 3C446 14232-172203| 40 85 35 27 85 27 | 2318+049 14232-172410| 103 74 85 103 62 | 1519-273 14232-172437| 62 62| 1741-038 14232-172615| 222 113 222 | 1255-316 14232-172637| 158 158| 1954-388 14232-172722| 48 48 | 1958-179 14232-172745| 92 92 | 0420-014 14232-172757| 18 18 18 18 | 0454-234 14232-172852| 18 18 | End of listing. =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 2.9 Min = 0.0 Max = 90.0 (Baseline Hh-Ny on 1741-038) RMS = 7.4 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Bd=BADARY Cc=CHICHI10 13=DSS13 Hh=HARTRAO Kb=KASHIM34 Km=KUNMING Mh=METSAHOV Ny=NYALES20 Sh=SESHAN25 Sv=SVETLOE Ts=TSUKUB32 Vm=VERAMZSW Wf=WESTFORD Wz=WETTZELL Ys=YEBES40M Ai Bd Cc 13 Hh Kb Km Mh Ny Sh Sv Ts Vm Wf Wz Ys Avg % obs. time: 57 19 54 9 37 16 26 46 32 35 16 15 56 36 32 38 33 % cal. time: 2 3 2 2 2 4 4 2 3 4 3 4 2 2 3 3 3 % slew time: 4 40 3 18 30 40 32 18 13 29 41 15 6 12 8 28 22 % idle time: 36 37 39 71 30 38 37 33 51 31 39 64 35 49 56 30 43 total # scans: 155 283 139 153 142 327 345 182 245 313 275 342 145 192 250 248 233 # scans/hour : 6 12 6 6 6 14 14 8 10 13 11 14 6 8 10 10 10 Avg scan (sec): 319 57 338 50 226 43 65 216 112 96 49 39 335 163 109 131 146 # data tracks: 16 16 16 32 16 16 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 32 16 16 16 16 16 16 16 16 16 16 16 16 Total TBytes: 0.9 0.3 0.8 0.3 0.6 0.3 0.4 0.7 0.5 0.5 0.2 0.2 0.9 0.6 0.5 0.6 0.5 Total TB(M5): 0.8 0.3 0.8 0.2 0.5 0.2 0.4 0.6 0.4 0.5 0.2 0.2 0.8 0.5 0.4 0.5 0.5 # OF OBSERVATIONS BY BASELINE | Ai Bd Cc 13 Hh Kb Km Mh Ny Sh Sv Ts Vm Wf Wz Ys Total ------------------------------------------------------------------------------------------ Ai| 58 116 26 16 116 106 6 15 113 16 124 102 9 15 10 848 Bd| 49 61 42 200 208 82 125 188 135 206 61 54 91 74 1634 Cc| 23 15 115 88 4 12 99 14 126 102 7 11 5 786 13| 3 68 45 60 99 55 79 72 36 92 73 70 862 Hh| 29 79 43 31 47 54 29 10 37 76 85 596 Kb| 233 53 90 235 92 316 132 41 60 47 1827 Km| 67 93 262 118 238 78 35 92 76 1818 Mh| 126 59 158 57 8 93 129 115 1060 Ny| 85 177 96 24 135 152 133 1393 Sh| 86 241 90 35 71 55 1721 Sv| 99 17 109 185 157 1496 Ts| 133 44 66 52 1899 Vm| 14 16 12 835 Wf| 113 130 948 Wz| 194 1344 Ys| 1215 Number of 2-station scans: 135 Number of 3-station scans: 109 Number of 4-station scans: 98 Number of 5-station scans: 94 Number of 6-station scans: 83 Number of 7-station scans: 71 Number of 8-station scans: 46 Number of 9-station scans: 39 Number of 10-station scans: 27 Number of 11-station scans: 20 Number of 12-station scans: 5 Number of 13-station scans: 1 Total number of scans: 728 Total number of obs: 10141 Total integrated obs-time: 767175 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 HARTRAO KUNMING NYALES20 SESHAN25 SVETLOE TSUKUB32 VERAMZSW WESTFORD YEBES40M 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: DSS13 Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:1 256 Mbits 128 MHz 14 2 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 32(*1) 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 19.13 11.48 30.61 Recording mode setup for: KASHIM34 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 mm/s 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: METSAHOV Mode Tot.Rate Tot.BandW #BBC #bits Barrel VLBA1:2 128 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 ===========================================================