IVS-T2084 (International VLBI Service - Terrestical Reference Frame Observations) 2012 July 24-25 doy 206-207 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: HAYS skedfile: t2084.skd Participating stations: =========== AIRA CHICHI10 CRIMEA DSS13 HARTRAO KSHIM11 KUNMING KOGANEI METSAHOV NOTO (Tagged-along) NYALES20 SESHAN25 TSUKUB32 URUMQI VERAISGK VERAMZSW YEBES40M 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 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: t2084 =========================================================== Experiment: T2084 Description IVS-T2.084 Scheduler: IGGB/Muesk Correlator: BONN Start: 2012-206-17:30:00 End: 2012-207-17:30:01 Current yyyyddd: 2012206 (2012.56) ( 16133 MJD, TUES 24JUL.) =========================================================== 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 Source Start DURATIONS name yyddd-hhmmss Ai Cc Sm 13 Hh K1 Km Kg Mh Nt Ny Sh Ts Ur Vs Vm Wz Ys Zc 0059+581 12206-173000| 467 470 327 57 186 40 187 192 209 74 24 132 470 260 394 91| 2145+067 12206-173422| 141 27 141 53 19 91 141 93| 0552+398 12206-173607| 19 68 68 34 67 | 1044+719 12206-173751| 18 18 | 1739+522 12206-173758| 34 15 23 34 | 1741-038 12206-173805| 47 47 17| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ai Cc Sm 13 Hh K1 Km Kg Mh Nt Ny Sh Ts Ur Vs Vm Wz Ys Zc NRAO150 12207-171853| 593 593 242 242 31 593 | 1749+096 12207-172317| 344 123 344 176 275 305 111 296 205 293 104| 0235+164 12207-172636| 186 201 201 | 1622-253 12207-172718| 38 38 18| 2255-282 12207-172727| 102 83 102 | =========================================================== SKED Summary from file ./t2084.skd for experiment T2084 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 2.2 Min = 0.0 Max = 72.0 (Baseline Sm-Vm on 1622-253) RMS = 5.7 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Sm=CRIMEA 13=DSS13 Hh=HARTRAO K1=KASHIM11 Km=KUNMING Kg=KOGANEI Mh=METSAHOV Nt=NOTO Ny=NYALES20 Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Ys=YEBES40M Zc=ZELENCHK Ai Cc Sm 13 Hh K1 Km Kg Mh Nt Ny Sh Ts Ur Vs Vm Wz Ys Zc Avg % obs. time: 61 64 45 16 18 56 19 51 27 22 37 29 15 37 49 49 32 39 17 36 % cal. time: 2 2 2 2 1 3 4 3 1 2 3 4 4 3 1 1 3 2 3 2 % slew time: 5 5 32 32 20 9 35 10 27 26 16 36 19 30 7 8 9 21 40 21 % idle time: 31 29 20 49 59 32 42 35 44 49 43 30 60 29 41 40 55 36 39 41 total # scans: 155 142 186 209 92 219 310 258 125 169 242 311 367 269 124 128 227 183 254 208 # scans/hour : 6 6 8 9 4 9 13 11 5 7 10 13 15 11 5 5 9 8 11 9 Avg scan (sec): 341 389 209 68 173 220 52 170 184 114 131 81 36 118 342 333 122 184 58 174 # data tracks: 16 16 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 16 16 Total GBytes: 952 994 700 255 287 869 288 789 413 346 572 451 237 572 764 768 497 607 265 559 Total GB(M5): 846 883 623 227 255 772 256 702 367 307 508 401 211 508 679 683 442 540 236 497 # of tapes : 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 19.0 Total GBytes (M5) recorded: 9446.2 # OF OBSERVATIONS BY BASELINE | Ai Cc Sm 13 Hh K1 Km Kg Mh Nt Ny Sh Ts Ur Vs Vm Wz Ys Zc StnTotal --------------------------------------------------------------------------------------------------------- Ai| 124 62 51 17 113 99 115 11 44 70 126 134 100 53 56 59 52 66 1352 Cc| 62 51 18 104 90 109 9 43 66 107 132 93 51 55 56 48 62 1280 Sm| 59 46 67 118 73 50 123 116 100 94 124 30 40 142 123 168 1597 13| 4 69 93 86 62 57 132 113 130 103 34 41 94 72 85 1336 Hh| 16 46 19 23 45 27 29 25 46 15 10 40 38 59 523 K1| 140 192 18 54 92 158 200 124 76 79 71 61 74 1708 Km| 176 57 100 149 253 231 213 91 75 134 107 154 2326 Kg| 24 57 107 195 238 148 93 90 82 64 87 1955 Mh| 61 93 52 51 71 11 14 83 65 78 833 Nt| 115 85 77 115 19 34 137 131 134 1431 Ny| 149 149 184 40 51 171 129 162 2002 Sh| 255 205 104 81 120 95 130 2357 Ts| 190 101 112 118 89 125 2451 Ur| 69 62 156 121 166 2290 Vs| 43 27 19 35 911 Vm| 42 38 45 968 Wz| 152 184 1868 Ys| 139 1543 Zc| 1953 Number of 2-station scans: 125 Number of 3-station scans: 88 Number of 4-station scans: 81 Number of 5-station scans: 62 Number of 6-station scans: 48 Number of 7-station scans: 44 Number of 8-station scans: 28 Number of 9-station scans: 33 Number of 10-station scans: 28 Number of 11-station scans: 27 Number of 12-station scans: 20 Number of 13-station scans: 10 Number of 14-station scans: 12 Number of 15-station scans: 22 Number of 16-station scans: 12 Number of 17-station scans: 4 Number of 18-station scans: 0 Number of 19-station scans: 0 Total # of scans, observations: 644 15342 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA CHICHI10 CRIMEA DSS13 HARTRAO KASHIM11 KUNMING KOGANEI NOTO NYALES20 SESHAN25 TSUKUB32 URUMQI VERAISGK VERAMZSW WETTZELL YEBES40M 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: 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 =========================================================== Minor Options Option Norm Wt Aux_Parm Astro Abs 5.00 BegScan Rel 1.00 EndScan Rel 1.00 NumObs Rel 5.00 StatIdle Abs 1.00 StatWt Abs 10.00 1 AIRA 5.00 2 CHICHI10 5.00 3 CRIMEA 3.00 4 DSS13 1.00 5 HARTRAO 1.00 6 KASHIM11 5.00 7 KUNMING 1.00 8 KOGANEI 3.00 9 METSAHOV 4.00 10 NOTO 2.00 11 NYALES20 2.00 12 SESHAN25 1.00 13 TSUKUB32 1.00 14 URUMQI 2.00 15 VERAISGK 5.00 16 VERAMZSW 5.00 17 WETTZELL 1.00 18 YEBES40M 1.00 19 ZELENCHK 1.00 =========================================================== Major Options Subnet AiCcSm13HhK1KmKgMhNtNyShTsUrVsVmWzYsZc SkyCov Yes AllBlGood Yes MaxAngle 180 MinAngle 15 MinBetween 20 MinSunDist 15 MaxSlewTime 300 TimeWindow 24.00 MinSubNetSize 2 NumSubNet 1 Best 85 FillIn Yes FillMinSub 3 FillMinTime 120 FillBest 80 Add_ps 30.0 SNRWts Yes =========================================================== Tape types ID Station Tape length Density Passes Ai AIRA K5 Cc CHICHI10 K5 Sm CRIMEA Mark5B 13 DSS13 Mark5A Hh HARTRAO Mark5B K1 KASHIM11 K5 Km KUNMING Mark5B Kg KOGANEI K5 Mh METSAHOV Mark5A Nt NOTO Mark5A Ny NYALES20 Mark5A Sh SESHAN25 Mark5A Ts TSUKUB32 K5 Ur URUMQI Mark5A Vs VERAISGK K5 Vm VERAMZSW K5 Wz WETTZELL Mark5A Ys YEBES40M Mark5A Zc ZELENCHK Mark5A =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) Ai Cc Sm 13 Hh K1 Km Kg Mh Nt Ny Sh Ts Ur Vs Vm Wz Ys Ai Cc Sm 13 Hh K1 Km Kg Mh Nt Ny Sh Ts Ur Vs Vm Wz Ys Cc 22 Cc 22 Sm 22 22 Sm 22 22 13 22 22 24 13 22 22 24 Hh 22 22 24 25 Hh 22 22 24 25 K1 22 22 22 22 22 K1 22 22 23 23 23 Km 22 22 24 25 25 22 Km 22 22 24 25 25 23 Kg 22 22 23 23 23 22 23 Kg 22 22 23 23 23 23 23 Mh 22 22 23 23 23 22 23 23 Mh 22 22 23 23 23 23 23 23 Nt 22 22 24 25 25 22 25 23 23 Nt 22 22 24 25 25 23 25 23 23 Ny 22 22 24 25 25 22 25 23 23 25 Ny 22 22 24 25 25 23 25 23 23 25 Sh 22 22 24 25 25 22 25 23 23 25 25 Sh 22 22 24 25 25 23 25 23 23 25 25 Ts 22 19 24 25 25 22 25 23 23 25 25 25 Ts 22 22 24 25 25 23 25 23 23 25 25 25 Ur 22 22 24 24 24 22 24 23 23 24 24 24 24 Ur 22 22 24 24 24 23 24 23 23 24 24 24 24 Vs 22 22 23 23 23 22 23 23 23 23 23 23 23 23 Vs 20 20 20 20 20 20 20 20 20 20 20 20 20 20 Vm 22 22 23 23 23 22 23 23 23 23 23 23 23 23 23 Vm 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 Wz 22 22 24 25 25 22 25 23 23 25 25 25 25 24 23 23 Wz 22 22 24 25 25 23 25 23 23 25 25 25 25 24 20 20 Ys 22 22 24 25 25 22 25 23 23 25 25 25 25 24 23 23 25 Ys 22 22 24 25 25 23 25 23 23 25 25 25 25 24 20 20 25 Zc 22 22 24 25 25 22 25 23 23 25 25 25 25 24 23 23 25 25 Zc 22 22 24 25 25 23 25 23 23 25 25 25 25 24 20 20 25 25