IVS-T2068 (International VLBI Service - Terrestical Reference Frame Observations) 2010 April 13-14 doy 103-104 Institute for Geodesy and Geoinformation (IGG) of the University of Bonn, Germany Correlator ========== see MASTER SCHEDULE 2010 (master10.txt) 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 ) COMMENT ======= Two new Vera stations will participate this time. From the following VLBI network stations we planed to transfer the recorded data via eVLBI Ai,Cc,Ts,Vm,Vs,Kb,Ny Session Notes for session: t2068 =========================================================== Experiment: T2068 Description IVS-T2.068 Scheduler: IGGB/Muesk Correlator: BONN Start: 2010-103-17:30:00 End: 2010-104-17:30:01 Current yyyyddd: 2010103 (2010.28) ( 15300 MJD, TUES 13APR.) Greenwich sidereal time: 6:57: 0.00 (17:30: 0 UT) Sun's RA and DEC: 1h 27.7m 9d 11.5 =========================================================== There are no observations for Kokee and Wettzell from 18:20 U.T. to 19:40 U.T. Kokee and Wettzell will participate in the intensive session during this 1.5 hour period. =========================================================== First observations Observation listing from file t2068.skd for experiment T2068 Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm 3C446 10103-173000| 40 40 | 4C39.25 10103-173000| 100 40 100 40 40 41 40 40 183 183| 1803+784 10103-182010| 720 74 720 106 48 219 84 154 41 211 | Last observations name yyddd-hhmmss Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm 2234+282 10104-171804| 195 195 | 3C345 10104-172302| 129 129 | 1921-293 10104-172455| 125 40 125 40 51| 2121+053 10104-172653| 40 40 40 | 0552+398 10104-172657| 40 40 40 40 40 | 0133+476 10104-172912| 40 40 40 40 | End of listing. =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 3.3 Min = 0.0 Max = 120.0 (Baseline Tc-Ts on 0537-441) RMS = 7.6 Total time: 1440 minutes ( 24.0 hours). Key: Ai=AIRA Bd=BADARY Cc=CHICHI10 13=DSS13 Kb=KASHIM34 Kk=KOKEE Mc=MEDICINA Ny=NYALES20 Tc=TIGO Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm Avg % obs. time: 59 19 62 30 21 39 28 35 34 19 34 65 61 39 % cal. time: 2 3 2 3 4 3 3 3 2 4 3 2 2 3 % slew time: 7 47 7 38 49 17 27 13 4 17 28 7 8 21 % idle time: 31 29 28 28 25 40 41 48 60 59 34 26 29 37 total # scans: 199 291 187 287 341 265 225 224 141 346 252 130 142 233 # scans/hour : 8 12 8 12 14 11 9 9 6 14 11 5 6 10 Avg scan (sec): 256 58 286 90 54 128 108 134 207 47 117 429 369 175 # data tracks: 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 Total GBytes: 916 303 962 467 329 609 436 540 526 294 531 1005 943 604 Total GB(M5): 815 269 855 415 292 541 387 480 467 261 472 893 838 537 # OF OBSERVATIONS BY BASELINE | Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm StnTotal --------------------------------------------------------------------------- Ai| 104 172 53 167 86 46 60 1 172 98 107 99 1165 Bd| 100 114 238 142 149 174 0 235 235 92 86 1669 Cc| 52 158 89 39 57 1 161 96 110 104 1139 13| 133 180 94 113 109 135 90 44 50 1167 Kb| 182 109 149 9 337 203 122 136 1943 Kk| 66 120 56 185 126 79 82 1393 Mc| 147 45 108 134 34 40 1011 Ny| 17 152 166 53 60 1268 Tc| 11 1 0 1 251 Ts| 202 122 137 1957 Ur| 89 81 1521 Vs| 94 946 Vm| 970 Total # of scans, observations: 604 8200 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 DSS13 KASHIM34 KOKEE MEDICINA NYALES20 TIGOCONC TSUKUB32 URUMQI VERAISGK VERAMZSW 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 =========================================================== Session Notes for session: t2068 =========================================================== Experiment: T2068 Description IVS-T2.068 Scheduler: IGGB/Muesk Correlator: BONN Start: 2010-103-17:30:00 End: 2010-104-17:30:01 Current yyyyddd: 2010103 (2010.28) ( 15300 MJD, TUES 13APR.) Greenwich sidereal time: 6:57: 0.00 (17:30: 0 UT) Sun's RA and DEC: 1h 27.7m 9d 11.5 =========================================================== There are no observations for Kokee and Wettzell from 18:20 U.T. to 19:40 U.T. Kokee and Wettzell will participate in the intensive session during this 1.5 hour period. =========================================================== First observations Observation listing from file t2068.skd for experiment T2068 Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm Wz 3C446 10103-173000| 40 40 | 4C39.25 10103-173000| 100 40 100 40 40 41 40 40 183 183 | 4C39.25 10103-182008| 40 40 40 40 40 40| 3C446 10103-182121| 40 40 40 | Last observations 0104-408 10104-171352| 115 115 | 1156+295 10104-171430| 40 40 40 55 40 58 58| 3C345 10104-171518| 107 107 | 2136+141 10104-171902| 477 531 48 40 104 40 531 | 1611+343 10104-172239| 70 61 183 276 169 276 | 1739+522 10104-172541| 56 42 58 46 49 58| 3C418 10104-172645| 117 117 | 3C371 10104-172820| 79 40 58 72 49 79| End of listing. =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 3.2 Min = 0.0 Max = 130.9 (Baseline Bd-13 on 1741-038) RMS = 7.2 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Bd=BADARY Cc=CHICHI10 13=DSS13 Kb=KASHIM34 Kk=KOKEE Mc=MEDICINA Ny=NYALES20 Tc=TIGO Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm Wz Avg % obs. time: 58 20 61 28 21 38 26 36 35 19 35 61 59 38 38 % cal. time: 2 3 2 3 4 3 3 3 2 4 3 2 2 3 3 % slew time: 6 48 6 38 48 15 30 15 5 17 31 8 8 7 21 % idle time: 33 28 30 29 27 43 39 45 58 60 30 28 31 51 38 total # scans: 182 290 178 273 322 240 261 233 146 328 258 131 133 223 228 # scans/hour : 8 12 7 11 13 10 11 10 6 14 11 5 6 9 10 Avg scan (sec): 275 59 294 90 56 137 87 135 207 49 116 404 381 147 173 # data tracks: 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 Total GBytes: 900 308 943 442 327 593 411 566 545 288 540 953 912 591 594 Total GB(M5): 800 274 839 393 291 527 365 503 485 256 480 847 811 525 528 # OF OBSERVATIONS BY BASELINE | Ai Bd Cc 13 Kb Kk Mc Ny Tc Ts Ur Vs Vm Wz StnTotal -------------------------------------------------------------------------------- Ai| 104 149 47 151 82 50 64 0 156 101 96 93 53 1146 Bd| 102 108 220 114 178 186 0 222 239 92 86 148 1799 Cc| 47 151 84 44 60 0 155 96 104 97 43 1132 13| 116 152 84 110 104 115 87 39 47 69 1125 Kb| 147 130 156 4 318 197 124 129 113 1956 Kk| 55 99 49 149 103 70 66 49 1219 Mc| 167 47 130 155 41 39 209 1329 Ny| 19 157 174 53 57 159 1461 Tc| 4 0 0 0 38 265 Ts| 197 125 129 114 1971 Ur| 88 82 142 1661 Vs| 88 39 959 Vm| 39 952 Wz| 1215 Total # of scans, observations: 615 9095 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 DSS13 KASHIM34 KOKEE MEDICINA NYALES20 TIGOCONC TSUKUB32 URUMQI VERAISGK VERAMZSW 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 ===========================================================