IVS-T2037 (International VLBI Service - Terrestical Reference Frame Observations) 2005 Feb. 01/02 doy 032/033 Geodetic Institute of the University of Bonn, Germany Correlator ========== see MASTER SCHEDULE 2004 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 SKED ((NRV/JMG 2004May05) using the EUR-SX band and the EURSX-C-2 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 ) 70% 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 ) Procedures ========== NO PREPASS TIME: There is no time allowed in the schedule for prepassing tapes. Therefore all tapes needed for this experiment must be pre-checked before the start of this experiment. Parameter values for experiment T2037 Experiment description: IVS-T2.037 Scheduler: BONN/Mueskens Nominal start: 2005-032-17:30:00 Nominal end: 2005-033-17:30:01 Current yyyyddd: 2005032 (2005.09) ( 13403 MJD, TUES 1FEB.) Greenwich sidereal time: 2:18: 4.00 (17:30: 0 UT) Sun's RA and DEC: 21h 1.7m -16d 55.3 =========================================================== There are no observations for Kokee and Wettzell from 17:30 U.T. to 19:00 U.T. Kokee and Wettzell will participate in the intensive session during this two hour period. =========================================================== First observations Observation listing from file t2037.skd for experiment T2037 Source Start DURATIONS name yyddd-hhmmss Sm Ft Gc Hh Ho Kb Kk Nt Ny Oh Gg Sh Tc Ur Wz 0208-512 05032-173000| 236 236 | 0955+476 05032-173000| 414 165 76 198 248 414 266 | 1622-253 05032-173000| 156 435 435 | 1741-038 05032-173508| 150 150 | End of listing. =========================================================== Last observations 1057-797 05033-170448| 760 760 | 0405-385 05033-170702| 760 513 760 | 0955+476 05033-170831| 412 165 75 178 248 412 266 261| 1741-038 05033-171329| 40 40 | 1923+210 05033-171507| 144 144 | 1424-418 05033-171951| 85 85 | End of listing. =========================================================== Average number of obs. per baseline per source (normalized by up-time) = 2.1 Min = .0 Max = 90.0 (Baseline Sm-Ny on 1741-038) RMS = 5.2 Total time: 1431 minutes ( 23.9 hours). Key: Sm=CRIMEA Ft=FORTLEZA Gc=GILCREEK Hh=HARTRAO Ho=HOBART26 Kb=KASHIM34 Kk=KOKEE Nt=NOTO Ny=NYALES20 Oh=OHIGGINS Gg=ORION_5M Sh=SESHAN25 Tc=TIGO Ur=URUMQI Wz=WETTZELL Sm Ft Gc Hh Ho Kb Kk Nt Ny Oh Gg Sh Tc Ur Wz Avg % obs. time: 45 57 58 49 55 39 58 54 58 44 11 47 35 52 54 48 % cal. time: 1 1 2 1 1 2 2 2 1 0 0 1 0 1 2 1 % slew time: 21 18 14 30 25 28 10 24 9 8 0 28 2 15 6 16 % idle time: 30 22 24 18 16 29 28 19 29 45 87 21 61 29 37 33 total # scans: 151 119 195 140 143 214 185 183 163 75 19 154 53 148 184 141 # scans/hour : 6.3 5.0 8.2 5.9 6.0 9.0 7.8 7.7 6.8 3.1 .8 6.5 2.2 6.2 7.7 5.9 Avg scan (sec): 259 413 257 303 334 159 270 253 307 511 529 265 575 307 253 333 Total GBytes: 308 387 395 334 376 268 394 365 395 302 79 322 240 358 367 326 Total GB(M5): 313 394 402 339 382 272 400 371 401 306 80 327 243 363 372 332 # of tapes : 2.6 3.3 .9 .8 .9 2.3 .9 .8 .9 .7 .2 .8 .5 .8 .8 tape change times (hhmm): 0202 0112 0000 0000 0000 0541 0000 0000 0000 0000 0000 0000 0000 0000 0000 1141 0834 0000 0000 0000 1449 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1512 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Total number of tapes: 17.0 Total GBytes (M5) recorded: 4972.7 # OF OBSERVATIONS BY BASELINE | Sm Ft Gc Hh Ho Kb Kk Nt Ny Oh Gg Sh Tc Ur Wz StnTotal -------------------------------------------------------------------------- Sm|151 15 34 41 4 23 9 98 59 0 0 25 0 54 92 454 Ft| 119 6 56 4 1 9 29 3 23 5 0 33 4 22 210 Gc| 195 2 9 84 97 37 111 0 7 45 0 56 52 540 Hh| 140 33 16 0 45 4 21 1 26 11 27 26 309 Ho| 143 59 50 2 3 34 0 39 9 26 2 274 Kb| 214 86 16 51 2 0 114 1 76 32 561 Kk| 185 9 37 14 8 36 10 29 16 410 Nt| 183 62 3 3 17 9 41 132 503 Ny| 163 0 3 43 0 72 88 536 Oh| 75 0 0 15 0 1 113 Gg| 19 0 0 0 2 29 Sh| 154 0 95 25 465 Tc| 53 0 4 92 Ur| 148 54 534 Wz| 184 548 Number of 2-station scans: 368 Number of 3-station scans: 168 Number of 4-station scans: 73 Number of 5-station scans: 50 Number of 6-station scans: 27 Number of 7-station scans: 18 Number of 8-station scans: 7 Number of 9-station scans: 0 Number of 10-station scans: 0 Number of 11-station scans: 0 Number of 12-station scans: 0 Number of 13-station scans: 0 Number of 14-station scans: 0 Number of 15-station scans: 0 Number of 16-station scans: 0 Total # of scans, observations: 711 2789 =========================================================== Recording mode Name Code EUR-SX SX Recording mode setup for: CRIMEA FORTLEZA KASHIM34 Mode Tot.Rate Tot.BandW #chan #bits Barrel C 56.000 Mbits 28.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 2.00 MHz 2 14(*0) 28 135.00 X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz S-band spanned bw= 85.0 MHz rms spanned bw= 33.0 MHz Effective number of channels recorded per sub-pass X S Total 8.000 6.000 14.000 Recording mode setup for: DSS45 GILCREEK HARTRAO HOBART26 KOKEE NOTO NYALES20 OHIGGINS GGAO7108 SESHAN25 TIGOCONC URUMQI WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel C 56.000 Mbits 28.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 2.00 MHz 2 14(*0) 28 80.00 X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz S-band spanned bw= 85.0 MHz rms spanned bw= 33.0 MHz Effective number of channels recorded per sub-pass X S Total 8.000 6.000 14.000 =========================================================== Monitoring Sources Source Min Max Actual Num #Scans 0405-385 3.00 100.00 1.65 46 20 1034-293 3.00 100.00 1.08 30 20 1519-273 3.00 100.00 2.98 83 21 1622-253 5.00 100.00 5.67 158 32 Total 11.37 317 93 =========================================================== 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 3.00 FFFFF FFFFF TTFTF F =========================================================== Major Options SkyCov Yes Min_Between 20 Best% 70.0 Last_Hrs 24.00 Add_ps 30.00 Obs_Wts SNRwt =========================================================== Tape types ID Station Tape length Density Passes Sm CRIMEA 8700feet (Thick ) 33333 (Low ) 12 45 DSS45 17400feet (Thin ) 56250 (HIGH ) 12 Ft FORTLEZA 8700feet (Thick ) 33333 (Low ) 12 Gc GILCREEK 17400feet (Thin ) 56250 (HIGH ) 12 Hh HARTRAO 17400feet (Thin ) 56250 (HIGH ) 12 Ho HOBART26 17400feet (Thin ) 56250 (HIGH ) 12 Kb KASHIM34 8700feet (Thick ) 33333 (Low ) 12 Kk KOKEE 17400feet (Thin ) 56250 (HIGH ) 12 Nt NOTO 17400feet (Thin ) 56250 (HIGH ) 12 Ny NYALES20 17400feet (Thin ) 56250 (HIGH ) 12 Oh OHIGGINS 17400feet (Thin ) 56250 (HIGH ) 12 Gg GGAO7108 17400feet (Thin ) 56250 (HIGH ) 12 Sh SESHAN25 17400feet (Thin ) 56250 (HIGH ) 12 Tc TIGOCONC 17400feet (Thin ) 56250 (HIGH ) 12 Ur URUMQI 17400feet (Thin ) 56250 (HIGH ) 12 Wz WETTZELL 17400feet (Thin ) 56250 (HIGH ) 12 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 3) S-band (margin 3) Sm Ft Gc Hh Ho Kb Kk Nt Ny Oh Gg Sh Tc Ur Sm Ft Gc Hh Ho Kb Kk Nt Ny Oh Gg Sh Tc Ur Ft 23 Ft 23 Gc 23 23 Gc 23 23 Hh 23 23 23 Hh 23 23 23 Ho 23 23 23 23 Ho 23 23 23 23 Kb 23 23 23 23 23 Kb 23 23 23 23 23 Kk 23 23 23 23 23 23 Kk 23 23 23 23 23 23 Nt 23 23 23 23 23 23 23 Nt 23 23 23 23 23 23 23 Ny 23 23 23 23 23 23 23 23 Ny 23 23 23 23 23 23 23 23 Oh 18 18 18 18 18 18 18 18 18 Oh 18 18 18 18 18 18 18 18 18 Gg 15 15 15 15 15 15 15 15 15 15 Gg 15 15 15 15 15 15 15 15 15 15 Sh 23 23 23 23 23 23 23 23 23 18 15 Sh 23 23 23 23 23 23 23 23 23 18 15 Tc 18 18 18 18 18 18 18 18 18 18 15 18 Tc 18 18 18 18 18 18 18 18 18 18 15 18 Ur 23 23 23 23 23 23 23 23 23 18 15 23 18 Ur 23 23 23 23 23 23 23 23 23 18 15 23 18 Wz 23 23 23 23 23 23 23 23 23 18 15 23 18 23 Wz 23 23 23 23 23 23 23 23 23 18 15 23 18 23