IVS-T2099 (International VLBI Service - Terrestical Reference Frame Observations) 2014 Sep.16-17 doy 259-260 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2014:259:17h30 UT Nominal End Time: 2014:260:17h30 UT Duration: 24.0 hr Correlator: HAYS Participating stations (15): ====================== Ai=AIRA Bd=BADARY Cc=CHICHI10 Sm=CRIMEA 13=DSS13 Ft=FORTLEZA K1=KASHIM11 Kg=KOGANEI Mh=METSAHOV Ny=NYALES20 Sv=SVETLOE Ts=TSUKUB32 Vm=VERAMZSW 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 ======= DSS13 and CRIMEA was scheduled in tag-along mode Session Notes for session: t2099 =========================================================== Experiment: T2099 Description IVS-T2.099 Scheduler: IGGB/Muesk Correlator: BONN Start: 2014-259-17:30:00 End: 2014-260-17:30:01 Current yyyyddd: 2014259 (2014.71) ( 16917 MJD, TUES 16SEP.) =========================================================== 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 t2099.skd for experiment T2099 Source Start DURATIONS name yyddd-hhmmss Ai Bd Cc Sm 13 Ft K1 Kg Mh Ny Sv Ts Vm Wz Zc 1156+295 14259-173000| 720 720 | 3C446 14259-173000| 720 121 720 720 600 720 171 73 720 617 171| 0119+115 14259-174341| 720 49 720 368 720 630 720 720 36 720 54| 1741-038 14259-174546| 68 42 68 | 0003-066 14259-174558| 15 15 | 1639-062 14259-174800| 332 189 332 189| 0017+200 14259-175433| 86 86 52 86 86| 0552+398 14259-175851| 385 35 410 131 320 194 581 113 44 20 581 | Last observations 1751+288 14260-170627| 255 720 720 720 631 250 466 250| 1749+096 14260-171444| 15 15 15| 0454-234 14260-171600| 720 720 430 431 53 720 | 2008-159 14260-171647| 94 94 94| 0119+115 14260-172047| 33 89 89 33| 0229+131 14260-172250| 18 18 | 0552+398 14260-172339| 22 22 22 | 0748+126 14260-172347| 251 251 31 | 0322+222 14260-172507| 229 229 153 | =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.7 Min = 0.0 Max = 68.6 (Baseline Ai-Ft on 1749+096) RMS = 4.8 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Bd=BADARY Cc=CHICHI10 Sm=CRIMEA 13=DSS13 Ft=FORTLEZA K1=KASHIM11 Kg=KOGANEI Mh=METSAHOV Ny=NYALES20 Sv=SVETLOE Ts=TSUKUB32 Vm=VERAMZSW Wz=WETTZELL Zc=ZELENCHK Ai Bd Cc Sm 13 Ft K1 Kg Mh Ny Sv Ts Vm Wz Zc Avg % obs. time: 80 40 81 47 14 73 65 60 76 66 42 14 80 57 46 56 % cal. time: 2 3 2 1 1 1 2 2 1 2 3 3 1 2 3 2 % slew time: 4 29 4 15 15 18 5 5 10 9 30 10 5 6 31 13 % idle time: 14 27 12 36 69 6 27 32 12 22 25 73 13 35 20 29 total # scans: 140 218 141 118 106 120 186 190 118 178 244 230 126 193 243 170 # scans/hour : 6 9 6 5 4 5 8 8 5 7 10 10 5 8 10 7 Avg scan (sec): 494 160 497 345 117 525 300 271 555 320 148 52 548 253 162 315 # data tracks: 16 16 16 16 32 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 32 16 16 16 16 16 16 16 16 16 16 Total TBytes: 1.2 0.6 1.3 0.7 0.4 1.1 1.0 0.9 1.2 1.0 0.6 0.2 1.2 0.9 0.7 0.9 # OF OBSERVATIONS BY BASELINE | Ai Bd Cc Sm 13 Ft K1 Kg Mh Ny Sv Ts Vm Wz Zc Total ------------------------------------------------------------------------------------- Ai| 71 114 22 17 7 104 106 23 26 23 116 99 12 21 761 Bd| 52 56 15 34 76 82 57 91 104 113 54 65 119 989 Cc| 14 20 0 121 117 16 19 15 123 107 3 13 734 Sm| 11 50 18 19 55 60 87 31 12 69 92 596 13| 31 31 31 27 53 50 34 18 47 29 414 Ft| 1 2 72 78 81 3 3 100 75 537 K1| 174 19 26 28 169 115 9 24 915 Kg| 20 28 30 179 112 10 27 937 Mh| 88 103 25 19 84 93 701 Ny| 129 44 23 109 105 879 Sv| 48 16 150 194 1058 Ts| 111 23 49 1068 Vm| 6 13 708 Wz| 136 823 Zc| 990 Number of 2-station scans: 106 Number of 3-station scans: 142 Number of 4-station scans: 67 Number of 5-station scans: 44 Number of 6-station scans: 70 Number of 7-station scans: 66 Number of 8-station scans: 34 Number of 9-station scans: 9 Number of 10-station scans: 1 Number of 11-station scans: 12 Number of 12-station scans: 4 Number of 13-station scans: 0 Number of 14-station scans: 0 Number of 15-station scans: 0 Total number of scans: 555 Total number of obs: 6055 Total integrated obs-time: 1553542 Average obs-time: 256.6 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: AIRA BADARY CHICHI10 CRIMEA KASHIM11 KOGANEI NYALES20 SVETLOE TSUKUB32 VERAMZSW 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 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: FORTLEZA 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 ===========================================================