EUROPE-75 (EUROPEAN Geodetic VLBI Network session No. 74) 2005 Mar. 22/23 doy 081/082 Geodetic Institute of the University of Bonn, Germany Nominal start time: 081-17h30 UT Nominal end time: 082-17h30 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 20/25 at X band and 20/22 at S band. =========================================================== Parameter values for experiment EURO75 Experiment description: EUROPE-75 Scheduler: GIUB/am Correlator: BONN Nominal start: 2005-081-17:30:00 Nominal end: 2005-082-17:30:00 Current yyyyddd: 2005081 (2005.22) ( 13452 MJD, TUES 22MAR.) Greenwich sidereal time: 5:31:15.00 (17:30: 0 UT) Sun's RA and DEC: 0h 8.0m 0d 52.3 =========================================================== There are no observations for Wettzell from 18:30 U.T. to 20:00 U.T. Kokee and Wettzell will participate in the intensive session during this two hour period. =========================================================== First observations Observation listing from file euro75.skd for experiment EURO74 Source Start DURATIONS name yyddd-hhmmss Sm Eb Mc Mh Nt Ny On Sv Wz 4C39.25 05081-173000| 41 40 40 49 40 40 49 40 40| End of listing. =========================================================== Last observations name yyddd-hhmmss Sm Eb Mc Mh Nt Ny On Sv Wz 4C39.25 05082-170844| 41 40 40 49 40 40 49 40 40| 1128+385 05082-171113| 360 40 206 360 360 235 360| 3C274 05082-171854| 360 360 61 117| End of listing. =========================================================== Average number of obs. per baseline per source (normalized by up-time) = 6.4 Min = .0 Max = 90.0 (Baseline Sm-Ny on 1741-038) RMS = 9.6 Total time: 1435 minutes ( 23.9 hours). Key: Sm=CRIMEA Eb=EFLSBERG Mc=MEDICINA Mh=METSAHOV Nt=NOTO Ny=NYALES20 On=ONSALA60 Sv=SVETLOE Wz=WETTZELL Sm Eb Mc Mh Nt Ny On Sv Wz Avg % obs. time: 38 15 31 34 43 42 45 29 42 36 % cal. time: 2 3 3 1 2 2 2 2 2 2 % slew time: 26 53 24 22 26 9 11 33 6 23 % idle time: 32 27 40 40 27 45 40 34 48 37 total # scans: 179 260 272 157 224 187 194 241 226 215 # scans/hour : 7.5 10.9 11.4 6.6 9.4 7.8 8.1 10.1 9.4 9.0 Avg scan (sec): 187 50 100 191 167 196 201 106 160 150 Total GBytes: 263 103 215 236 296 289 307 203 286 245 Total GB(M5): 267 104 219 240 300 294 312 206 290 249 # of tapes : 2.1 .3 .5 .5 .6 .6 .7 .5 .6 tape change times (hhmm): 0543 0000 0000 0000 0000 0000 0000 0000 0000 1642 0000 0000 0000 0000 0000 0000 0000 0000 Total number of tapes: 6.3 Total GBytes (M5) recorded: 2237.1 # OF OBSERVATIONS BY BASELINE | Sm Eb Mc Mh Nt Ny On Sv Wz StnTotal -------------------------------------------------- Sm|179 152 150 107 138 107 116 132 135 1037 Eb| 260 233 122 191 158 163 200 184 1403 Mc| 272 149 219 173 184 230 218 1556 Mh| 157 129 113 122 143 138 1023 Nt| 224 166 176 196 208 1423 Ny| 187 158 177 169 1221 On| 194 177 176 1272 Sv| 241 197 1452 Wz| 226 1425 Number of 2-station scans: 36 Number of 3-station scans: 20 Number of 4-station scans: 36 Number of 5-station scans: 20 Number of 6-station scans: 20 Number of 7-station scans: 58 Number of 8-station scans: 69 Number of 9-station scans: 54 Total # of scans, observations: 313 5906 =========================================================== Recording mode Name Code EUR2-SX SX Recording mode setup for: CRIMEA 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= 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: EFLSBERG MEDICINA METSAHOV NOTO NYALES20 ONSALA60 SVETLOE 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= 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 =========================================================== Minor Options Option Norm Wt Aux_Parm BegScan Rel 1.00 EndScan Rel 1.00 NumObs Rel 1.00 StatWt Abs 1.00 FFFFF FFFF =========================================================== Major Options SkyCov Yes Min_Between 30 Best% 75.0 Last_Hrs 1.00 Add_ps 30.00 Obs_Wts SNRwt =========================================================== Tape types ID Station Tape length Density Passes Sm CRIMEA 8700feet (Thick ) 33333 (Low ) 12 Eb EFLSBERG 17400feet (Thin ) 56250 (HIGH ) 12 Mc MEDICINA 17400feet (Thin ) 56250 (HIGH ) 12 Mh METSAHOV 17400feet (Thin ) 56250 (HIGH ) 12 Nt NOTO 17400feet (Thin ) 56250 (HIGH ) 12 Ny NYALES20 17400feet (Thin ) 56250 (HIGH ) 12 On ONSALA60 17400feet (Thin ) 56250 (HIGH ) 12 Sv SVETLOE 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 5) S-band (margin 5) Sm Eb Mc Mh Nt Ny On Sv Sm Eb Mc Mh Nt Ny On Sv Eb 30 Eb 25 Mc 30 40 Mc 25 30 Mh 30 25 25 Mh 25 25 25 Nt 30 40 40 25 Nt 25 30 30 25 Ny 30 40 40 25 40 Ny 25 30 30 25 30 On 30 30 30 30 30 30 On 25 25 25 25 25 25 Sv 30 40 40 25 40 40 30 Sv 25 30 30 25 30 30 25 Wz 30 40 40 25 40 40 30 40 Wz 25 30 30 25 30 30 25 30