Session Notes for R1 (Rapid Turnaround Monday) session: r1050 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 R1050 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2002-350-17:00:00 Nominal end: 2002-351-17:00:00 Current yyyyddd: 2002350 (2002.96) ( 12625 MJD, MON. 16DEC.) Greenwich sidereal time: 22:40:39.55 (17: 0: 0 UT) Sun's RA and DEC: 17h 36.3m -23d 19.6 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 3C446 02350-170000| 87 87 64| 1726+455 02350-170000| 43 43 40 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1741-038 02351-162721| 190 190 | 0556+238 02351-162937| 164 164 104 108| 4C39.25 02351-163320| 40 40 40 | 0059+581 02351-163532| 40 40 40 40 40| 0804+499 02351-163732| 95 190 120 190 124| OK290 02351-164015| 40 40 | OJ287 02351-164138| 40 40 | 0528+134 02351-164321| 45 45 40 40| 0235+164 02351-164509| 40 40 40| 0106+013 02351-164710| 40 40 40| =========================================================== SKED Summary from file ./r1050.skd for experiment R1050 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 6.0 Min = .0 Max = 43.3 (Baseline Ny-Wz on CTA26 ) RMS = 6.6 Total time: 1428 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: 32 33 35 14 39 34 31 % cal. time: 5 4 5 1 4 5 4 % slew time: 28 34 26 3 20 16 21 % idle time: 34 26 32 81 34 44 42 # of tapes : 1.8 1.9 2.4 .8 2.2 1.9 total # scans: 436 424 492 86 425 482 390 # scans/hour : 18 17 20 3 17 20 16.3 Avg scan (sec): 63 67 62 144 79 61 79 tape change times (hhmm): 0617 0557 0316 0000 0442 0518 0000 0000 1342 0000 1453 0000 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny Tc Wf Wz StnTotal -------------------------------------- Gc|436 220 376 33 325 270 1224 Ma| 424 326 37 252 419 1254 Ny| 492 24 307 381 1414 Tc| 86 77 37 208 Wf| 425 290 1251 Wz| 482 1397 Number of 2-station scans: 194 Number of 3-station scans: 172 Number of 4-station scans: 124 Number of 5-station scans: 177 Number of 6-station scans: 10 Total # of scans, observations: 677 3374 =========================================================== 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