Session Notes for R1 (Rapid Turnaround Monday) session: r1068 Prepared by C. Thomas, NVI, Inc./GSFC Refer to http://ivscc.gsfc.nasa.gov/program/descrip2003.html#r1 for the session purpose. =========================================================== Parameter values for experiment R1068 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2003-118-17:00:00 Nominal end: 2003-119-17:00:00 Current yyyyddd: 2003118 (2003.32) ( 12758 MJD, MON. 28APR.) Greenwich sidereal time: 7:25: 1.41 (17: 0: 0 UT) Sun's RA and DEC: 2h 22.5m 14d 10.5 =========================================================== The following sources were included for research purposes: 2201+171 (64 observations) 2205+166 (54 observations) 0610+171 (63 observations) =========================================================== First observations Observation listing from file ./r1068.skd for experiment R1068 Source Start DURATIONS name yyddd-hhmmss Gc Kk Ma Sh Tc Wf Wz 0454-234 03118-170000| 99 142 79 142| 0602+673 03118-170000| 56 141 141 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Kk Ma Sh Tc Wf Wz 1357+769 03119-164709| 40 40 62 78 78 54| 2255-282 03119-164954| 159 159 | =========================================================== SKED Summary from file ./r1068.skd for experiment R1068 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.9 Min = .0 Max = 22.7 (Baseline Tc-Wf on 0552+398) RMS = 5.0 Total time: 1432 minutes ( 23.9 hours). Key: Gc=GILCREEK Kk=KOKEE Ma=MATERA Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Kk Ma Sh Tc Wf Wz Avg % obs. time: 29 35 33 26 19 42 31 31 % cal. time: 4 4 4 3 1 4 4 3 % slew time: 24 19 29 47 4 18 12 22 % idle time: 41 40 33 23 74 35 51 42 # of tapes : 1.7 2.0 1.9 1.5 1.1 2.4 1.8 total # scans: 381 377 345 263 113 366 367 316 # scans/hour : 15 15 14 11 4 15 15 13.2 Avg scan (sec): 66 81 83 85 148 99 73 90 tape change times (hhmm): 0801 0521 0627 0950 1631 0304 0713 0000 0000 0000 0000 0000 1331 0000 # OF OBSERVATIONS BY BASELINE | Gc Kk Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|381 304 172 179 27 258 198 1138 Kk| 377 99 174 67 216 123 983 Ma| 345 151 35 218 338 1013 Sh| 263 1 97 158 760 Tc| 113 81 36 247 Wf| 366 240 1110 Wz| 367 1093 Number of 2-station scans: 158 Number of 3-station scans: 241 Number of 4-station scans: 116 Number of 5-station scans: 71 Number of 6-station scans: 59 Number of 7-station scans: 0 Total # of scans, observations: 645 3172 =========================================================== Recording mode Name Code GEOSX4F 4F Recording mode setup for: GILCREEK Mode Tot.Rate Tot.BandW #chan #bits Barrel VLBA1:2 256.000 Mbits 128.000 MHz 14 1 8:1 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 16(*2) 32 160.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 120.0 MHz rms spanned bw= 48.8 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 Recording mode setup for: KOKEE Mode Tot.Rate Tot.BandW #chan #bits Barrel VLBA1:2 256.000 Mbits 128.000 MHz 14 1 16:1 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 16(*2) 32 160.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 120.0 MHz rms spanned bw= 48.8 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 Recording mode setup for: MATERA SESHAN25 TIGOCONC WESTFORD WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 256.000 Mbits 128.000 MHz 14 1 16 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 16(*2) 32 160.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 120.0 MHz rms spanned bw= 48.8 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 =========================================================== Tape types ID Station Tape length Density Gc GILCREEK 17400feet (Thin ) 56700. (High) Kk KOKEE 17400feet (Thin ) 56700. (High) Ma MATERA 17400feet (Thin ) 56250. (High) Sh SESHAN25 17400feet (Thin ) 56250. (High) Tc TIGOCONC 17400feet (Thin ) 56250. (High) Wf WESTFORD 17400feet (Thin ) 56250. (High) Wz WETTZELL 17400feet (Thin ) 56250. (High) =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 5) Gc Kk Ma Sh Tc Wf Gc Kk Ma Sh Tc Wf Kk 20 Kk 15 Ma 20 20 Ma 15 15 Sh 20 20 20 Sh 15 15 15 Tc 20 20 20 20 Tc 15 15 15 15 Wf 20 20 20 20 20 Wf 15 15 15 15 15 Wz 20 20 20 20 20 20 Wz 15 15 15 15 15 15