Session Notes for R1 (Rapid Turnaround Monday) session: r1017.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 R1017 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2002-119-17:00:00 Nominal end: 2002-120-17:00:00 Current yyyyddd: 2002119 (2002.33) ( 12394 MJD, MON. 29APR.) Greenwich sidereal time: 7:29:55.26 (17: 0: 0 UT) Sun's RA and DEC: 2h 27.3m 14d 33.8 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny On Wf Wz 1357+769 02119-170000| 30 38 35 46 46 33| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny On Wf Wz 0823+033 02120-164900| 87 70 87 59| 0458-020 02120-165105| 117 117| 0119+115 02120-165429| 30 33 33 | 1606+106 02120-165742| 30 30 | =========================================================== SKED Summary from file ./r1017.skd for experiment R1017 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 9.7 Min = .0 Max = 69.7 (Baseline Ny-Wz on 0458-020) RMS = 9.1 Total time: 1438 minutes ( 24.0 hours). Key: Gc=GILCREEK Ma=MATERA Ny=NYALES20 On=ONSALA60 Wf=WESTFORD Wz=WETTZELL Gc Ma Ny On Wf Wz Avg % obs. time: 30 28 32 25 33 34 31 % cal. time: 4 4 5 4 4 6 5 % slew time: 26 29 26 24 19 17 24 % idle time: 37 36 34 45 42 41 39 # of tapes : 1.8 1.6 1.9 1.5 1.9 2.0 total # scans: 423 427 473 356 393 526 433 # scans/hour : 17 17 19 14 16 21 18.0 Avg scan (sec): 62 57 60 62 73 57 61 tape change times (hhmm): 0649 0746 0614 1032 0552 0518 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny On Wf Wz StnTotal -------------------------------------- Gc|423 186 356 191 315 273 1321 Ma| 427 288 315 232 423 1444 Ny| 473 276 292 387 1599 On| 356 210 339 1331 Wf| 393 281 1330 Wz| 526 1703 Number of 2-station scans: 169 Number of 3-station scans: 144 Number of 4-station scans: 128 Number of 5-station scans: 118 Number of 6-station scans: 121 Total # of scans, observations: 680 4364 =========================================================== 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 ONSALA60 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) On ONSALA60 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 0) S-band (margin 0) Gc Ma Ny On Wf Gc Ma Ny On Wf Ma 20 Ma 15 Ny 20 20 Ny 15 15 On 20 20 20 On 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