IVS-T2097 (International VLBI Service - Terrestical Reference Frame Observations) 2014 Jun.24-25 doy 175-176 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2014:175:17h30 UT Nominal End Time: 2014:176:17h30 UT Duration: 24.0 hr Correlator: HAYS Participating stations (17): ====================== Ai=AIRA Bd=BADARY Cc=CHICHI10 Sm=CRIMEA 13=DSS13 45=DSS45 Ft=FORTLEZA Kb=KASHIM34 K1=KASHIM11 Km=KUNMING Kg=KOGANEI Mh=METSAHOV Ny=NYALES20 Ts=TSUKUB32 Wf=WESTFORD 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 Comment ======= DSS45, DSS13 and Crimea was scheduled in tag-alog mode Session Notes for session: t2097 =========================================================== Experiment: T2097 Description IVS-T2.097 Scheduler: IGGB/Muesk Correlator: BONN Start: 2014-175-17:30:00 End: 2014-176-17:30:01 Current yyyyddd: 2014175 (2014.48) ( 16833 MJD, TUES 24JUN.) =========================================================== 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 t2097.skd for experiment T2097 Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc Sm 13 45 Ft Kb K1 Km Kg Mh Ny Ts Wf Wz Zc 1749+096 14175-173000| 638 44 720 39 47 310 40 306 720 124 161 68| 0133+476 14175-173620| 48 41 19 22 131 43 132 91 132 113 | 0642+449 14175-173924| 186 186 178 113 75| 1958-179 14175-174014| 40 22 26 169 39 169 24 | 3C446 14175-174230| 85 85 52 62 73 | 2255-282 14175-174438| 418 418 24 29 318 102 182 165 | 0059+581 14175-174810| 43 93 45 50 60 58 142 72 142 60 31| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc Sm 13 45 Ft Kb K1 Km Kg Mh Ny Ts Wf Wz Zc OJ287 14176-172402| 115 115 82 46| 0420-014 14176-172450| 17 70 70 | 1921-293 14176-172552| 20 21 15 15 21 15 15 | 0454-234 14176-172653| 25 76 76 | 1145+268 14176-172654| 159 159| 0552+398 14176-172702| 52 52 41 | 2227-088 14176-172732| 63 74 93 93 52 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 2.6 Min = 0.0 Max = 720.0 (Baseline Ts-Zc on 0008-264) RMS = 10.2 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Bd=BADARY Cc=CHICHI10 Sm=CRIMEA 13=DSS13 45=DSS45 Ft=FORTLEZA Kb=KASHIM34 K1=KASHIM11 Km=KUNMING Kg=KOGANEI Mh=METSAHOV Ny=NYALES20 Ts=TSUKUB32 Wf=WESTFORD Wz=WETTZELL Zc=ZELENCHK Ai Bd Cc Sm 13 45 Ft Kb K1 Km Kg Mh Ny Ts Wf Wz Zc Avg % obs. time: 58 21 59 13 11 14 53 15 54 25 43 51 37 11 43 34 22 33 % cal. time: 2 4 2 1 2 4 2 4 2 4 3 2 3 2 3 3 3 3 % slew time: 5 46 5 9 23 48 30 42 6 35 8 16 14 8 12 10 45 22 % idle time: 34 29 34 75 62 32 14 38 36 35 45 30 45 78 42 51 29 42 total # scans: 178 305 162 72 184 364 196 336 212 330 261 173 248 194 248 270 302 237 # scans/hour : 7 13 7 3 8 15 8 14 9 14 11 7 10 8 10 11 13 10 Avg scan (sec): 283 59 313 159 53 34 235 39 219 66 142 255 128 47 148 110 62 137 # 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 TBytes: 0.9 0.3 0.9 0.2 0.2 0.2 0.8 0.2 0.8 0.4 0.7 0.8 0.6 0.2 0.7 0.5 0.3 0.5 Total TB(M5): 0.8 0.3 0.8 0.2 0.2 0.2 0.7 0.2 0.7 0.3 0.6 0.7 0.5 0.1 0.6 0.5 0.3 0.5 # OF OBSERVATIONS BY BASELINE | Ai Bd Cc Sm 13 45 Ft Kb K1 Km Kg Mh Ny Ts Wf Wz Zc Total ----------------------------------------------------------------------------------------------- Ai| 79 132 22 26 147 0 138 132 121 134 14 24 82 7 21 33 1112 Bd| 62 37 49 200 9 195 93 227 124 80 143 108 42 116 173 1737 Cc| 18 26 149 0 131 138 98 136 10 16 83 8 11 23 1041 Sm| 10 29 30 27 21 41 22 51 32 15 28 47 62 492 13| 60 82 59 41 28 43 40 75 22 122 72 47 802 45| 1 327 195 227 242 52 89 166 36 65 97 2082 Ft| 0 0 14 0 40 36 1 158 77 50 498 Kb| 182 217 232 50 85 159 34 59 90 1985 K1| 122 202 12 37 101 18 22 36 1352 Km| 154 68 105 140 25 91 155 1833 Kg| 13 48 136 20 30 52 1588 Mh| 103 18 44 130 137 862 Ny| 33 99 153 154 1232 Ts| 9 22 50 1145 Wf| 108 57 815 Wz| 197 1221 Zc| 1413 Total number of scans: 812 Total number of obs: 10605 Total integrated obs-time: 777463 Average obs-time: 73.3 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 CRIMEA KASHIM11 KUNMING KOGANEI NYALES20 TSUKUB32 WESTFORD 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: DSS13 DSS45 FORTLEZA 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 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 ===========================================================