Session Notes for R1 (Rapid Turnaround Monday) session: r1029.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 R1029 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2002-203-17:00:00 Nominal end: 2002-204-17:00:00 Current yyyyddd: 2002203 (2002.56) ( 12478 MJD, MON. 22JUL.) Greenwich sidereal time: 13: 1: 5.91 (17: 0: 0 UT) Sun's RA and DEC: 8h 7.5m 20d 12.6 =========================================================== The following sources were included for research purposes: 1622-253 (8 observations), 1647-296 (5 observations), There were no scheduled observations on source 1251-407. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1334-127 02203-170000| 89 103 103| 0552+398 02203-170000| 40 40 40 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 0955+476 02204-164451| 40 40 40 40 40| OK290 02204-164617| 102 102 | 0607-157 02204-164708| 40 40 | =========================================================== SKED Summary from file ./r1029.skd for experiment R1029 (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 = 68.6 (Baseline Ny-Wz on 1741-038) RMS = 6.9 Total time: 1427 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: 33 32 34 12 37 34 30 % cal. time: 5 5 5 1 5 5 4 % slew time: 28 33 27 2 19 16 21 % idle time: 32 28 33 83 38 44 43 # of tapes : 1.9 1.9 2.3 .7 2.1 1.9 total # scans: 448 430 490 88 435 490 396 # scans/hour : 18 18 20 3 18 20 16.5 Avg scan (sec): 63 64 59 123 73 59 73 tape change times (hhmm): 0623 0605 0350 0000 0400 0519 0000 0000 1432 0000 1548 0000 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny Tc Wf Wz StnTotal -------------------------------------- Gc|448 235 385 40 343 285 1288 Ma| 430 328 38 259 426 1286 Ny| 490 29 316 385 1443 Tc| 88 83 39 229 Wf| 435 301 1302 Wz| 490 1436 Number of 2-station scans: 202 Number of 3-station scans: 148 Number of 4-station scans: 131 Number of 5-station scans: 185 Number of 6-station scans: 14 Total # of scans, observations: 680 3492 =========================================================== 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