IVS-T2106 (International VLBI Service - Terrestical Reference Frame Observations) 2015 Oct.06 - 07 doy 279-280 Institute for Geodesy and Geoinformation (IGGB) of the University of Bonn, Germany Nominal Start Time: 2015:279:17h30 UT Nominal End Time: 2015:280:17h30 UT Duration: 24.0 hr Correlator: BONN Participating stations (16+3): ====================== Sm=CRIMEA 13=DSS13 Ft=FORTLEZA Ht=HART15M Hb=HOBART12 K1=KASHIM11 Ke=KATH12M Km=KUNMING Kg=KOGANEI Ma=MATERA Ny=NYALES20 Oh=OHIGGINS Kv=SEJONG Ts=TSUKUB32 Vm=VERAMZSW Wn=WETTZ13N Wz=WETTZELL Yg=YARRA12M Is=ISHIOKA 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 COMMENT ======= TWIN Wettzell North, Ohiggins and ISHIOKA was scheduled in tag-along mode Session Notes for session: t2106 =========================================================== ----- Parameter listing -------------------------------------- Experiment: T2106 Description IVS-T2.106 Scheduler: IGGB/Muesk Correlator: BONN Start: 2015-279-17:30:00 End: 2015-280-17:30:00 Current yyyyddd: 2015279 (2015.76) ( 17302 MJD, TUES 6OCT.) Greenwich sidereal time: 18:30:13 (17:30:00 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. =========================================================== First observations Observation listing from file t2106.skd for experiment T2106 Source Start DURATIONS name yyddd-hhmmss Sm 13 Ft Ht Hb K1 Ke Km Kg Ma Ny Oh Kv Ts Vm Wn Wz Yg Is 0537-441 15279-173000| 274 412 412 247 412| 3C418 15279-173000| 185 720 153 277 47 277 203 139 460 35 720 167 104 | 0727-115 15279-173558| 15 37 37 37 15 24 | Last observations CTA26 15280-171723| 648 690 390 44 654 720 83 720 | 1908-201 15280-171925| 130 130 76 76 | 1726+455 15280-171929| 73 555 535 555 | 0059+581 15280-172228| 30 33 18 33 33| 1741-038 15280-172254| 15 15 15 15 | NRAO512 15280-172457| 160 110 160 100 90 | 0454-234 15280-172529| 129 15 15 129 72| =========================================================== Average number of obs. per baseline per source(normalized by up-time) = 1.0 Min = 0.0 Max = 63.5 (Baseline 13-Ht on 3C418 ) RMS = 3.9 Total time: 1436 minutes ( 23.9 hours). Key: Sm=CRIMEA 13=DSS13 Ft=FORTLEZA Ht=HART15M Hb=HOBART12 K1=KASHIM11 Ke=KATH12M Km=KUNMING Kg=KOGANEI Ma=MATERA Ny=NYALES20 Oh=OHIGGINS Kv=SEJONG Ts=TSUKUB32 Vm=VERAMZSW Wn=WETTZ13N Wz=WETTZELL Yg=YARRA12M Is=ISHIOKA Sm 13 Ft Ht Hb K1 Ke Km Kg Ma Ny Oh Kv Ts Vm Wn Wz Yg Is Avg % obs. time: 60 22 60 42 62 57 63 31 57 56 48 20 64 19 62 53 46 56 59 49 % cal. time: 2 3 2 2 2 3 2 3 3 2 2 1 2 3 2 3 3 2 3 2 % slew time: 28 35 22 13 5 8 6 30 8 17 14 3 4 15 10 2 8 6 5 13 % idle time: 9 40 16 42 31 31 27 35 31 24 34 76 29 62 26 42 42 36 33 35 total # scans: 159 226 140 199 157 228 187 256 234 198 206 50 203 279 190 227 220 172 234 198 # scans/hour : 7 9 6 8 7 10 8 11 10 8 9 2 8 12 8 9 9 7 10 8 Avg scan (sec): 323 84 368 181 340 215 293 104 210 243 202 347 272 58 279 200 181 280 216 230 # Mk5 tracks: 16 32 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 0.8 0.6 0.8 0.6 0.9 0.8 0.9 0.4 0.8 0.8 0.7 0.3 0.9 0.3 0.8 0.7 0.6 0.8 0.8 0.7 # OF OBSERVATIONS BY BASELINE | Sm 13 Ft Ht Hb K1 Ke Km Kg Ma Ny Oh Kv Ts Vm Wn Wz Yg Is Total --------------------------------------------------------------------------------------------------------- Sm| 45 69 69 8 33 9 69 30 100 93 8 35 42 29 95 90 8 35 867 13| 51 23 23 81 33 79 82 82 121 9 49 123 55 116 111 22 83 1188 Ft| 86 9 3 2 22 3 96 56 27 6 6 7 75 76 7 8 609 Ht| 48 14 50 61 15 94 41 31 21 26 11 85 83 59 17 834 Hb| 37 139 53 42 3 7 24 36 47 37 1 2 140 50 706 K1| 55 113 214 30 65 0 162 185 140 40 37 40 158 1407 Ke| 81 61 8 13 19 61 73 55 3 5 151 73 891 Km| 125 52 89 4 102 176 78 79 73 68 120 1444 Kg| 29 62 0 170 195 140 42 39 45 160 1454 Ma| 99 13 24 41 27 140 135 11 30 1014 Ny| 1 54 93 44 126 118 8 75 1165 Oh| 0 1 0 6 7 22 4 176 Kv| 138 139 33 34 42 149 1255 Ts| 128 71 64 56 163 1628 Vm| 23 25 40 125 1103 Wn| 207 2 54 1198 Wz| 4 53 1163 Yg| 54 779 Is| 1411 Number of 4-station scans: 231 Number of 5-station scans: 158 Number of 6-station scans: 99 Number of 7-station scans: 67 Number of 8-station scans: 41 Number of 9-station scans: 24 Number of 10-station scans: 18 Number of 11-station scans: 11 Number of 12-station scans: 3 Number of 13-station scans: 5 Number of 14-station scans: 3 Total number of scans: 660 Total number of obs: 10146 Average X-band SNRs by baseline | Sm 13 Ft Ht Hb K1 Ke Km Kg Ma Ny Oh Kv Ts Vm Wn Wz Yg Is AVG -------------------------------------------------------------------------------------------------------- Sm| 55 47 53 42 33 53 87 47 117 94 45 57 67 56 92 120 43 76 79 13| 59 61 48 40 48 99 55 77 105 38 58 153 66 78 107 43 87 83 Ft| 62 24 33 23 59 46 67 59 50 65 63 87 54 70 23 57 59 Ht| 50 36 47 79 54 75 59 48 52 77 60 59 80 53 57 62 Hb| 29 67 46 36 55 38 37 45 62 59 20 35 63 62 54 K1| 33 50 36 44 47 - 39 62 39 39 52 27 57 44 Ke| 66 43 58 49 26 52 80 60 50 53 60 82 59 Km| 70 108 98 42 83 201 85 89 129 59 114 98 Kg| 62 68 - 53 87 54 55 72 34 80 60 Ma| 119 57 82 91 89 135 175 53 93 106 Ny| 21 75 109 78 107 136 41 99 95 Oh| - 21 - 67 82 28 33 43 Kv| 94 71 69 88 44 94 68 Ts| 94 85 116 63 137 107 Vm| 83 98 47 95 70 Wn| 158 59 69 98 Wz| 48 94 120 Yg| 59 53 Is| 90 Average S-band SNRs by baseline | Sm 13 Ft Ht Hb K1 Ke Km Kg Ma Ny Oh Kv Ts Vm Wn Wz Yg Is AVG -------------------------------------------------------------------------------------------------------- Sm| 37 29 41 26 35 28 46 33 54 43 19 31 34 21 44 50 31 28 40 13| 35 53 43 46 38 60 44 38 60 22 38 89 25 40 49 43 37 49 Ft| 30 28 24 26 29 24 28 25 20 24 24 20 24 27 26 14 27 Ht| 37 42 33 55 38 40 35 19 31 42 24 34 43 40 24 38 Hb| 30 33 33 31 36 28 19 28 35 22 66 44 36 25 32 K1| 30 43 46 32 36 - 36 53 23 30 33 32 39 39 Ke| 44 32 27 27 20 29 42 21 24 29 37 30 34 Km| 44 40 44 24 40 101 24 36 45 44 41 49 Kg| 30 35 - 37 53 23 28 32 34 39 39 Ma| 40 19 29 32 21 46 53 33 22 40 Ny| 22 31 44 21 38 45 29 28 40 Oh| - 26 - 19 19 20 12 20 Kv| 43 21 27 31 31 32 33 Ts| 28 32 38 41 48 53 Vm| 21 21 22 21 23 Wn| 53 44 19 38 Wz| 42 22 43 Yg| 27 35 Is| 33 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode for: CRIMEA HART15M HOBART12 ISHIOKA KASHIM11 KATH12M KUNMING KOGANEI MATERA NYALES20 SEJONG TSUKUB32 VERAMZSW WETTZ13N YARRA12M 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: 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 4.00 MHz 1 32(*1) 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 19.13 11.48 30.61 Recording mode for: FORTLEZA OHIGGINS 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 ===========================================================