Session Notes for R1 (Rapid Turnaround Monday) session: r1065 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 R1065 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2003-097-17:00:00 Nominal end: 2003-098-17:00:00 Current yyyyddd: 2003097 (2003.27) ( 12737 MJD, MON. 7APR.) Greenwich sidereal time: 6: 2:13.75 (17: 0: 0 UT) Sun's RA and DEC: 1h 4.4m 6d 51.5 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 3C446 03097-170000| 59 100 100 | 3C274 03097-170000| 190 190 190 190| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 1057-797 03098-163859| 133 133 | 4C39.25 03098-163930| 40 40 40 40| 0749+540 03098-164125| 106 190 190 158 115| 0727-115 03098-164651| 40 40 40| =========================================================== SKED Summary from file ./r1065.skd for experiment R1065 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 4.1 Min = .0 Max = 26.2 (Baseline Gc-Sh on 1334-127) RMS = 5.0 Total time: 1427 minutes ( 23.8 hours). Key: Gc=GILCREEK Hh=HARTRAO Ma=MATERA Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Ma Sh Tc Wf Wz Avg % obs. time: 31 17 34 25 18 44 33 29 % cal. time: 4 2 4 2 1 4 4 3 % slew time: 27 37 31 44 3 18 13 25 % idle time: 36 42 28 27 76 32 47 41 # of tapes : 1.8 1.0 1.9 1.4 1.0 2.4 1.9 total # scans: 395 183 376 246 103 396 396 299 # scans/hour : 16 7 15 10 4 16 16 12.5 Avg scan (sec): 69 82 78 87 151 96 73 90 tape change times (hhmm): 0705 0000 0536 1113 0000 0309 0624 0000 0000 0000 0000 0000 1247 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|395 12 196 189 37 300 236 970 Hh| 183 152 60 35 61 132 452 Ma| 376 136 37 235 355 1111 Sh| 246 1 104 142 632 Tc| 103 89 38 237 Wf| 396 266 1055 Wz| 396 1169 Number of 2-station scans: 221 Number of 3-station scans: 128 Number of 4-station scans: 168 Number of 5-station scans: 117 Number of 6-station scans: 2 Number of 7-station scans: 0 Total # of scans, observations: 636 2813 =========================================================== 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: HARTRAO 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) Hh HARTRAO 17400feet (Thin ) 56250. (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 Hh Ma Sh Tc Wf Gc Hh Ma Sh Tc Wf Hh 20 Hh 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