Session Notes for R1 (Rapid Turnaround Monday) session: r1038 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 R1038 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2002-266-17:00:00 Nominal end: 2002-267-17:00:00 Current yyyyddd: 2002266 (2002.73) ( 12541 MJD, MON. 23SEP.) Greenwich sidereal time: 17: 9:28.90 (17: 0: 0 UT) Sun's RA and DEC: 12h 1.8m 0d 11.8 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1156+295 02266-170000| 221 290 290 290 155 290| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 0727-115 02267-164229| 59 59 | 2234+282 02267-164253| 105 105 40 40| 3C418 02267-164547| 42 66 61 66 57| =========================================================== SKED Summary from file ./r1038.skd for experiment R1038 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 5.7 Min = .0 Max = 24.2 (Baseline Ny-Wz on 1351-018) RMS = 6.2 Total time: 1426 minutes ( 23.8 hours). Key: Gc=GILCREEK Ma=MATERA Ny=NYALES20 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Ma Ny Tc Wf Wz Avg % obs. time: 31 34 34 23 43 33 33 % cal. time: 4 4 5 1 4 5 4 % slew time: 25 32 24 3 19 15 20 % idle time: 38 28 35 71 32 46 42 # of tapes : 1.8 1.9 2.3 1.4 2.4 1.9 total # scans: 401 392 443 107 411 439 365 # scans/hour : 16 16 18 4 17 18 15.2 Avg scan (sec): 68 75 67 191 89 64 92 tape change times (hhmm): 0638 0529 0254 1202 0328 0511 0000 0000 1406 0000 1354 0000 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny Tc Wf Wz StnTotal -------------------------------------- Gc|401 221 355 47 313 264 1200 Ma| 392 303 46 253 390 1213 Ny| 443 36 306 352 1352 Tc| 107 99 47 275 Wf| 411 286 1257 Wz| 439 1339 Number of 2-station scans: 160 Number of 3-station scans: 130 Number of 4-station scans: 123 Number of 5-station scans: 179 Number of 6-station scans: 16 Total # of scans, observations: 608 3318 =========================================================== 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