Session Notes for R1 (Rapid Turnaround Monday) session: r1069.skd 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 R1069 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2003-125-17:00:00 Nominal end: 2003-126-17:00:00 Current yyyyddd: 2003125 (2003.34) ( 12765 MJD, MON. 5MAY.) Greenwich sidereal time: 7:52:37.30 (17: 0: 0 UT) Sun's RA and DEC: 2h 49.3m 16d 16.5 =========================================================== The following sources were included for research purposes: 1754+155 (67 observations) 1928+154 (72 observations) 2258+166 (68 observations) =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 0454-234 03125-170000| 73 92 92 78 | OQ208 03125-170000| 40 135 135| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 0727-115 03126-164520| 46 90 90 63 87| 1749+096 03126-164537| 40 40 | 0528+134 03126-164829| 128 91 44 128| =========================================================== SKED Summary from file ./r1069.skd for experiment R1069 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.5 Min = .0 Max = 19.7 (Baseline Hh-Ma on 2258+166) RMS = 4.7 Total time: 1430 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: 29 18 34 23 15 42 33 28 % cal. time: 4 2 4 2 1 4 4 3 % slew time: 25 38 31 43 3 18 13 24 % idle time: 41 41 30 30 80 34 49 43 # of tapes : 1.6 1.1 1.9 1.4 .9 2.4 1.9 total # scans: 365 175 352 222 89 372 367 277 # scans/hour : 15 7 14 9 3 15 15 11.6 Avg scan (sec): 68 91 84 92 144 97 77 93 tape change times (hhmm): 0844 1642 0529 1213 0000 0346 0615 0000 0000 0000 0000 0000 1327 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|365 17 180 175 27 273 211 883 Hh| 175 145 52 33 65 125 437 Ma| 352 118 32 215 331 1021 Sh| 222 0 90 127 562 Tc| 89 77 31 200 Wf| 372 244 964 Wz| 367 1069 Number of 2-station scans: 215 Number of 3-station scans: 122 Number of 4-station scans: 157 Number of 5-station scans: 100 Number of 6-station scans: 3 Number of 7-station scans: 0 Total # of scans, observations: 597 2568 =========================================================== 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