IVS-T2111 (International VLBI Service - Terrestical Reference Frame Observations) 2016 Jun,21-22 doy 173-174 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2016:173:17h30 UT Nominal End Time: 2016:174:17h30 UT Duration: 24.0 hr Correlator: BONN Participating stations (17) ====================== Sm=CRIMEA 6a=DSS65A K1=KASHIM11 Ke=KATH12M Kk=KOKEE Kg=KOGANEI Ma=MATERA Mh=METSAHOV Ny=NYALES20 Kv=SEJONG Sv=SVETLOE Ur=URUMQI Ww=WARK12M Wn=WETTZ13N Wz=WETTZELL Yg=YARRA12M 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 15 min COMMENTS ======== DSS65 will stop observing at DOY 174-16:25 UT 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. Session Notes for session: t2111 =========================================================== Experiment: T2111 Description IVS-T2.111 Scheduler: IGGB/Muesk Correlator: BONN Start: 2016-173-17:30:00 End: 2016-174-17:30:01 Current yyyyddd: 2016173 (2016.47) ( 17561 MJD, TUES 21JUN.) =========================================================== First observations Observation listing from file t2111.skd for experiment T2111 Source Start DURATIONS name yyddd-hhmmss Sm 6a K1 Ke Kk Kg Ma Mh Ny Kv Sv Ur Ww Wn Wz Yg Zc 0059+581 16173-173000| 396 212 395 229 573 102 573 45 98 186 133 41| 3C418 16173-173000| 584 58 720 720 | Last observations 0823+033 16174-162232| 160 20 186 186 128 46 93 49| 1726+455 16174-171018| 720 565 543 297 498 176 216 720 552 720 231| 3C418 16174-171033| 573 220 630 630 | 0059+581 16174-171630| 38 33 22 38 27| 1418+546 16174-172244| 236 243 189 259 178 259 152 212 133 72| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.1 Min = 0.0 Max = 80.0 (Baseline Kk-Sv on 1749+096) RMS = 3.6 Total time: 1437 minutes ( 24.0 hours). Key: Sm=CRIMEA 6a=DSS65A K1=KASHIM11 Ke=KATH12M Kk=KOKEE Kg=KOGANEI Ma=MATERA Mh=METSAHOV Ny=NYALES20 Kv=SEJONG Sv=SVETLOE Ur=URUMQI Ww=WARK12M Wn=WETTZ13N Wz=WETTZELL Yg=YARRA12M Zc=ZELENCHK Sm 6a K1 Ke Kk Kg Ma Mh Ny Kv Sv Ur Ww Wn Wz Yg Zc Avg % obs. time: 55 11 70 64 46 68 55 60 51 72 25 50 58 55 40 68 23 51 % cal. time: 2 3 2 2 2 2 2 2 3 2 3 2 2 3 3 2 3 2 % slew time: 29 40 6 6 14 6 17 17 15 3 43 26 5 2 8 5 40 17 % idle time: 13 45 21 27 36 23 24 20 30 22 28 20 34 39 48 25 33 29 total # scans: 185 254 160 165 194 165 185 165 221 159 271 213 138 233 234 152 263 197 # scans/hour : 8 11 7 7 8 7 8 7 9 7 11 9 6 10 10 6 11 8 Avg scan (sec): 254 36 378 335 206 354 257 315 200 391 80 204 363 205 148 383 75 245 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 0.8 0.1 1.0 0.9 0.6 0.9 0.8 0.8 0.7 1.0 0.3 0.7 0.8 0.8 0.6 0.9 0.3 0.7 # OF OBSERVATIONS BY BASELINE | Sm 6a K1 Ke Kk Kg Ma Mh Ny Kv Sv Ur Ww Wn Wz Yg Zc Total ----------------------------------------------------------------------------------------------- Sm| 119 28 12 18 26 135 102 94 29 117 87 5 112 113 17 163 1177 6a| 23 5 39 17 144 121 141 26 198 92 0 168 197 10 193 1493 K1| 55 74 143 27 31 47 110 36 76 48 50 25 42 32 847 Ke| 91 67 4 3 11 71 14 32 130 11 6 139 14 665 Kk| 84 22 27 66 57 65 56 89 52 46 80 35 901 Kg| 21 23 42 121 32 81 55 43 23 50 27 855 Ma| 114 106 20 124 79 0 118 140 7 144 1205 Mh| 100 24 115 60 1 102 109 4 115 1051 Ny| 40 183 112 7 140 148 8 140 1385 Kv| 40 73 53 48 25 60 33 830 Sv| 129 3 166 190 10 208 1630 Ur| 24 91 95 31 127 1245 Ww| 2 0 122 2 541 Wn| 163 12 154 1432 Wz| 10 172 1462 Yg| 17 619 Zc| 1576 Number of 4-station scans: 193 Number of 5-station scans: 128 Number of 6-station scans: 74 Number of 7-station scans: 52 Number of 8-station scans: 50 Number of 9-station scans: 34 Number of 10-station scans: 19 Number of 11-station scans: 6 Number of 12-station scans: 7 Number of 13-station scans: 7 Total number of scans: 570 Total number of obs: 9457 Total integrated obs-time: 1482559 Average obs-time: 156.8 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: CRIMEA KASHIM11 KATH12M KOKEE KOGANEI MATERA NYALES20 SEJONG SVETLOE URUMQI WARK12M WETTZ13N YARRA12M 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 4.00 MHz 1 16(*1) 16 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 for: DSS65A 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 4.00 MHz 1 16(*2) 32 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 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 4.00 MHz 1 16(*2) 32 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 ===========================================================