IVS-T2080 (International VLBI Service - Terrestical Reference Frame Observations) 2011 Dec.13-14 doy 347-348 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany +---------------------- ** Update notice ** ------------------------------+ | | | This is an updated version of the schedule which reverts back to the | | EUR2-SX frequency sequence. This roll-back became necessary because the | | Japanese stations at AIRA, CHICHI10, VERAISGK, and VERAMZSW and possibly | | other stations (such as URUMQI) cannot observe the channels XR5U-XR8U and | | XR8L. | | | +---------------------------------------------------------------------------+ Nominal Start Time: 17h30 UT Nominal End Time: 17h30 UT Duration: 24.0 hr Correlator: HAYS Participating stations: =========== AIRA BADARY CHICHI10 CRIMEA DSS13 KASHIM11 KUNMING KOGANEI MATERA METSAHOV NYALES20 SESHAN25 SVETLOE TSUKUB32 URUMQI VERAISGK VERAMZSW WETTZELL YEBES40M 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 ) FREQ SETUP ========== We use since Dec.2011 another frequency setup called GEOSXR4 with 128Mb and 4Mhz BW, but x-band spanned bw 720Mhz and s-band spanned bw 125Mhz. Effective recorded channels are 10 in x-band and 6 in s-band (16 total). Note: For T2080 the frequency sequence was reverted to EUR2-SX. Session Notes for session: t2080 =========================================================== Experiment: T2080 Description IVS-T2.080 Scheduler: IGGB/Muesk Correlator: BONN Start: 2011-347-17:30:00 End: 2011-348-17:30:00 Current yyyyddd: 2011347 (2011.95) ( 15909 MJD, TUES 13DEC.) =========================================================== 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 t2080.skd for experiment T2080 Source Start DURATIONS name yyddd-hhmmss 13 Ai Bd Cc K1 Kg Km Ma Sm Mh Ny Sh Sv Ts Ur Vs Vm Wz Ys 0552+398 11347-173000| 526 40 720 632 339 40 563 632 720 104 62 60 40 71 625 595 206 167| 1803+784 11347-173420| 40 40 40 56 91 40 48 56 40 91| Last observations 1156+295 11348-171629| 84 719 71 720 696 365 52 322 110 40 172 720 | 0642+449 11348-172315| 81 89 229 209 229 193 51 65 198 77 132| 0607-157 11348-172726| 40 72 40 40 72 | 1611+343 11348-172730| 40 40 40 40 40| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 2.7 Min = 0.0 Max = 180.0 (Baseline 13-Wz on 0607-157) RMS = 6.0 Total time: 1438 minutes ( 24.0 hours). Key: 13=DSS13 Ai=AIRA Bd=BADARY Cc=CHICHI10 K1=KASHIM11 Kg=KOGANEI Km=KUNMING Ma=MATERA Sm=CRIMEA Mh=METSAHOV Ny=NYALES20 Sh=SESHAN25 Sv=SVETLOE Ts=TSUKUB32 Ur=URUMQI Vs=VERAISGK Vm=VERAMZSW Wz=WETTZELL Ys=YEBES40M 13 Ai Bd Cc K1 Kg Km Ma Sm Mh Ny Sh Sv Ts Ur Vs Vm Wz Ys Avg % obs. time: 15 62 21 61 60 52 22 46 47 32 40 32 20 20 38 60 44 31 37 39 % cal. time: 2 2 3 2 2 3 3 2 2 1 3 3 3 4 3 1 2 2 2 2 % slew time: 26 5 46 4 7 8 34 16 27 22 14 31 41 16 30 6 7 8 20 20 % idle time: 56 31 28 32 30 37 39 34 23 43 43 32 35 59 27 32 46 57 40 39 total # scans: 181 140 284 131 188 226 293 163 173 127 217 275 248 327 260 114 130 213 174 203 # scans/hour : 8 6 12 5 8 9 12 7 7 5 9 11 10 14 11 5 5 9 7 8 Avg scan (sec): 71 381 65 401 274 197 66 246 233 219 157 102 71 54 128 451 294 125 182 194 # 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: 230 960 331 947 927 801 349 721 725 500 615 503 317 317 598 925 689 481 570 606 Total GB(M5): 204 853 294 841 824 712 310 641 645 444 547 447 282 282 531 823 612 427 507 538 Total GBytes (M5) recorded: 10227.4 # OF OBSERVATIONS BY BASELINE | 13 Ai Bd Cc K1 Kg Km Ma Sm Mh Ny Sh Sv Ts Ur Vs Vm Wz Ys StnTotal --------------------------------------------------------------------------------------------------------- 13| 34 102 32 52 72 75 49 40 38 111 79 103 112 82 20 32 81 63 1177 Ai| 95 114 107 107 104 43 56 24 56 114 56 119 87 76 60 47 34 1333 Bd| 84 121 139 226 108 116 80 158 211 175 207 212 81 68 135 106 2424 Cc| 100 101 95 40 53 23 52 101 51 115 84 75 59 43 31 1253 K1| 177 124 54 67 25 81 142 72 172 118 84 88 60 39 1683 Kg| 146 56 68 25 89 160 76 211 127 85 105 66 42 1852 Km| 103 124 75 134 228 159 212 215 92 71 129 105 2417 Ma| 132 77 102 90 141 84 108 34 18 134 122 1495 Sm| 74 107 103 133 91 126 45 24 132 112 1603 Mh| 72 61 111 55 82 18 20 87 78 1025 Ny| 128 164 132 153 46 33 138 117 1873 Sh| 128 227 191 98 83 103 87 2334 Sv| 129 159 40 24 186 147 2054 Ts| 177 94 124 102 79 2442 Ur| 82 60 134 113 2310 Vs| 60 37 23 1090 Vm| 16 11 956 Wz| 140 1770 Ys| 1449 Total # of scans, observations: 573 16270 =========================================================== Recording mode (Note: this is the sequence that we rolled back to.) Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 CRIMEA DSS13 KASHIM11 KOGANEI MATERA NYALES20 SESHAN25 SVETLOE TSUKUB32 URUMQI VERAISGK VERAMZSW WETTZELL YEBES40M 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 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 ===========================================================