EUROPE-93 (EUROPEAN Geodetic VLBI Network session No. 91) 2008 Mai 26-27 doy 147-148 Institute for Geodesy and GeoInformation of the University of Bonn, Germany Nominal start time: 2008-147-1200 UT Nominal end time: 2008-148-1200 UT Duration: 24 hrs Purpose ======= The purpose of this experiment is to determine station coordinates and their evolution in the southern part of the European geodetic VLBI network with the highest precision possible. Schedule ======== The schedule was optimized for local sky coverage. Scans are scheduled to have scan length purely according to SNR limits. No time second modulo is applied. The sky coverage for all stations were optimized. The minimum SNR on all baselines is at X band and at S band different. Matera and Crimea was scheduled in the tagged-along modus! e-VLBI Transfer =============== We will try to transfer data via eVLBI from Mh, Ny and Wz ! Session Notes ============= Parameter values for experiment EURO93 Experiment description: EUROPE-93 Scheduler: IGG/am Correlator: BONN Nominal start: 2008-147-12:00:00 Nominal end: 2008-148-12:00:01 Current yyyyddd: 2008147 (2008.40) ( 14613 MJD, MON. 26MAY.) Greenwich sidereal time: 4:17: 0.00 (12: 0: 0 UT) Sun's RA and DEC: 4h 14.8m 21d 14.3 =========================================================== First observations Observation listing from file euro93.skd for experiment EURO93 Source Start DURATIONS name yyddd-hhmmss 6a Eb Mc Nt Ny Wz Zc Ma Sm 0528+134 08147-120000| 30 30 30 30 30 30 30 | 0727-115 08147-120311| 30 30 30 30 30 30 30 30| =========================================================== Last observations 0607-157 08148-113825| 30 30 30 30 30 30 30 30| 0458-020 08148-114033| 30 30 73 130 130 109 | 0823+033 08148-114507| 30 30 41 75 75 46 | End of listing. =========================================================== Average number of obs. per baseline per source (normalized by up-time) = 8.0 Min = 0.0 Max = 54.1 (Baseline 6a-Ny on CTA26 ) RMS = 9.4 Total time: 1426 minutes ( 23.8 hours). Key: 6a=DSS65A Eb=EFLSBERG Mc=MEDICINA Nt=NOTO Ny=NYALES20 Wz=WETTZELL Zc=ZELENCHK Ma=MATERA Sm=CRIMEA 6a Eb Mc Nt Ny Wz Zc Ma Sm Avg % obs. time: 16 12 27 46 33 45 28 17 11 26 % cal. time: 2 2 2 2 1 2 2 1 1 2 % slew time: 60 54 24 26 9 7 37 12 13 27 % idle time: 20 32 46 25 56 45 32 69 74 45 total # scans: 348 331 366 337 207 342 312 165 101 278 # scans/hour : 14.6 13.9 15.4 14.2 8.7 14.4 13.1 6.9 4.2 11.7 Avg scan (sec): 40 31 63 116 137 112 77 91 97 84 Total GBytes: 251 182 414 706 511 690 431 269 155 401 Total GB(M5): 223 162 368 628 454 613 383 239 157 359 # OF OBSERVATIONS BY BASELINE | 6a Eb Mc Nt Ny Wz Zc Ma Sm StnTotal -------------------------------------------------- 6a|348 313 330 306 184 306 277 147 87 1950 Eb| 331 312 289 179 291 263 142 82 1871 Mc| 366 335 194 336 308 163 101 2079 Nt| 337 188 325 300 157 98 1998 Ny| 207 189 176 119 81 1310 Wz| 342 297 160 99 2003 Zc| 312 135 97 1853 Ma| 165 75 1098 Sm| 101 720 Total # of scans, observations: 388 7441 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: CRIMEA Mode Tot.Rate Tot.BandW #chan #bits Barrel C 112.000 Mbits 56.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 2 14(*0) 28 270.00 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 8.000 6.000 14.000 Recording mode setup for: DSS65A EFLSBERG MATERA MEDICINA NOTO NYALES20 WETTZELL ZELENCHK Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 128.000 Mbits 64.000 MHz 14 1 16 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 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) 6a Eb Mc Nt Ny Wz Zc Ma 6a Eb Mc Nt Ny Wz Zc Ma Eb 30 Eb 27 Mc 30 30 Mc 27 27 Nt 30 30 30 Nt 27 27 27 Ny 30 30 30 30 Ny 27 27 27 27 Wz 30 30 30 30 30 Wz 27 27 27 27 27 Zc 30 30 30 30 30 30 Zc 27 27 27 27 27 27 Ma 25 25 25 25 25 25 25 Ma 25 25 25 25 25 25 25 Sm 20 20 20 20 20 20 20 20 Sm 20 20 20 20 20 20 20 20