Session Notes for R1 (Rapid Turnaround Monday) session: r1048.skd Prepared by C. Thomas, NVI, Inc./GSFC Refer to http://ivscc.gsfc.nasa.gov/program/descrip2002.html#r1 for the session purpose. =========================================================== Parameter values for experiment R1048 Experiment description: IVS-R1 Scheduler: NASA Correlator: WACO Nominal start: 2002-336-17:00:00 Nominal end: 2002-337-17:00:00 Current yyyyddd: 2002336 (2002.92) ( 12611 MJD, MON. 2DEC.) Greenwich sidereal time: 21:45:27.77 (17: 0: 0 UT) Sun's RA and DEC: 16h 34.9m -21d 59.9 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1749+096 02336-170000| 190 190 190 190 145 190| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1334-127 02337-163626| 190 190 | 2136+141 02337-164125| 40 40 40 40| 2113+293 02337-164248| 190 175 190| 2318+049 02337-164641| 66 66 58| CTA26 02337-165010| 40 40| =========================================================== SKED Summary from file ./r1048.skd for experiment R1048 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 5.8 Min = .0 Max = 36.6 (Baseline Ny-Wz on 1351-018) RMS = 6.4 Total time: 1431 minutes ( 23.9 hours). Key: Gc=GILCREEK Ma=MATERA Ny=NYALES20 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Ma Ny Tc Wf Wz Avg % obs. time: 31 33 36 14 37 33 31 % cal. time: 4 4 5 0 4 5 4 % slew time: 26 34 26 3 20 16 21 % idle time: 36 26 30 81 37 44 42 # of tapes : 1.8 1.9 2.4 .8 2.1 1.9 total # scans: 427 413 486 85 410 464 380 # scans/hour : 17 17 20 3 17 19 15.9 Avg scan (sec): 63 70 65 144 78 62 80 tape change times (hhmm): 0619 0531 0255 0000 0435 0500 0000 0000 1300 0000 1547 0000 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny Tc Wf Wz StnTotal -------------------------------------- Gc|427 219 373 34 315 261 1202 Ma| 413 320 38 249 411 1237 Ny| 486 26 306 372 1397 Tc| 85 76 38 212 Wf| 410 281 1227 Wz| 464 1363 Number of 2-station scans: 190 Number of 3-station scans: 158 Number of 4-station scans: 120 Number of 5-station scans: 177 Number of 6-station scans: 11 Total # of scans, observations: 656 3319 =========================================================== 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: MATERA NYALES20 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) Ma MATERA 17400feet (Thin ) 56250. (High) Ny NYALES20 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 Ma Ny Tc Wf Gc Ma Ny Tc Wf Ma 20 Ma 15 Ny 20 20 Ny 15 15 Tc 20 20 20 Tc 15 15 15 Wf 20 20 20 20 Wf 15 15 15 15 Wz 20 20 20 20 20 Wz 15 15 15 15 15