Session Notes for R1 (Rapid Turnaround Monday) session: r1027 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 R1027 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2002-189-17:00:00 Nominal end: 2002-190-17:00:00 Current yyyyddd: 2002189 (2002.52) ( 12464 MJD, MON. 8JUL.) Greenwich sidereal time: 12: 5:54.13 (17: 0: 0 UT) Sun's RA and DEC: 7h 11.0m 22d 26.2 =========================================================== The following sources were included for research purposes: 0536+145 (87 observations), 0748+126 (131 observations), 1551+130 (77 observations), CTA102 (111 observations). =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 0552+398 02189-170000| 111 136 135 136 40 78| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 0454-234 02190-164205| 107 107 | 1334-127 02190-164228| 40 40| 1741-038 02190-164432| 40 40| 0528+134 02190-164443| 40 40 40 | 1300+580 02190-164708| 40 44 40 44 40| 1044+719 02190-164851| 44 40 44 | 1417+385 02190-165045| 60 54 60 50| =========================================================== SKED Summary from file ./r1027.skd for experiment R1027 (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 = 54.5 (Baseline Ny-Wz on CTA26 ) RMS = 6.8 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 35 11 36 32 30 % cal. time: 5 5 6 1 5 5 4 % slew time: 27 35 27 2 19 16 21 % idle time: 35 25 30 85 38 44 43 # of tapes : 1.8 1.9 2.4 .6 2.1 1.9 total # scans: 455 442 519 86 442 495 406 # scans/hour : 19 18 21 3 18 20 16.9 Avg scan (sec): 58 64 58 112 71 56 69 tape change times (hhmm): 0622 0607 0257 0000 0357 0542 0000 0000 1326 0000 1626 0000 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny Tc Wf Wz StnTotal -------------------------------------- Gc|455 238 395 41 348 283 1305 Ma| 442 351 35 268 441 1333 Ny| 519 33 334 405 1518 Tc| 86 81 37 227 Wf| 442 306 1337 Wz| 495 1472 Number of 2-station scans: 198 Number of 3-station scans: 153 Number of 4-station scans: 134 Number of 5-station scans: 194 Number of 6-station scans: 13 Total # of scans, observations: 692 3596 =========================================================== 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 NONE 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