Session Notes for session: r4154 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4154 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2004-364-18:30:00 Nominal end: 2004-365-18:45:00 Current yyyyddd: 2004364 (2005.00) ( 13369 MJD, WED. 29DEC.) Greenwich sidereal time: 1: 4:11.53 (18:30: 0 UT) Sun's RA and DEC: 18h 36.6m -23d 10.3 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4154.skd for experiment R4154 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 3C446 04364-183000| 100 100 | 1741-038 04364-183531| 98 98 98 | 1739+522 04364-183856| 98 98 | 0133+476 04364-184418| 98 128 128 | 2243-123 04364-185044| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4154.skd for experiment R4154 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 0119+115 04365-182429| 98 98 98| End of listing. Observation listing from file ./r4154.skd for experiment R4154 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 2136+141 04365-180639| 98 243 243 98| 1424-418 04365-181009| 437 437 | 0059+581 04365-181335| 98 111 111 98| 0133+476 04365-181727| 98 112 112 98| 0552+398 04365-182142| 98 98| 0119+115 04365-182429| 98 98 98| End of listing. =========================================================== SKED Summary from file ./r4154.skd for experiment R4154 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.8 Min = .0 Max = 43.6 (Baseline Ny-Wz on CTA26 ) RMS = 5.2 Total time: 1436 minutes ( 23.9 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Kk=KOKEE Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Ft Kk Ny Tc Wz Avg % obs. time: 24 26 37 38 24 37 31 % cal. time: 2 1 2 2 1 2 2 % slew time: 57 26 9 14 4 9 20 % idle time: 16 45 50 44 69 50 46 total # scans: 191 144 173 229 100 222 176 # scans/hour : 7 6 7 9 4 9 7.4 Avg scan (sec): 110 155 189 144 208 144 158 Total GBytes: 362 376 542 557 344 539 453 # of tapes : .8 3.3 1.3 1.3 .8 1.2 tape change times (hhmm): 0000 0119 1403 1422 0000 1442 0000 0821 0000 0000 0000 0000 0000 1610 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Kk Ny Tc Wz StnTotal -------------------------------------- Ap|191 75 108 121 40 103 447 Ft| 144 29 55 70 90 319 Kk| 173 107 43 68 355 Ny| 229 5 182 470 Tc| 100 28 186 Wz| 222 471 Number of 2-station scans: 165 Number of 3-station scans: 102 Number of 4-station scans: 98 Number of 5-station scans: 5 Number of 6-station scans: 1 Total # of scans, observations: 371 1124 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK KOKEE NYALES20 TIGOCONC WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel C 112.000 Mbits 56.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 2 14(*0) 28 160.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 125.0 MHz rms spanned bw= 50.7 MHz Effective number of channels recorded per sub-pass X S Total 8.000 6.000 14.000 Recording mode setup for: FORTLEZA Mode Tot.Rate Tot.BandW #chan #bits Barrel C 112.000 Mbits 56.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 2 14(*0) 28 270.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 125.0 MHz rms spanned bw= 50.7 MHz Effective number of channels recorded per sub-pass X S Total 8.000 6.000 14.000 =========================================================== Tape types ID Station Tape length Density Passes Ap ALGOPARK 17400feet (Thin ) 56250. (High) 12 Ft FORTLEZA 8700feet (Thick) 33333. (Low ) 12 Kk KOKEE 17400feet (Thin ) 56250. (High) 12 Ny NYALES20 17400feet (Thin ) 56250. (High) 12 Tc TIGOCONC 17400feet (Thin ) 56250. (High) 12 Wz WETTZELL 17400feet (Thin ) 56250. (High) 12 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 3) Ap Ft Kk Ny Tc Ap Ft Kk Ny Tc Ft 20 Ft 15 Kk 20 20 Kk 15 15 Ny 20 20 20 Ny 15 15 15 Tc 15 15 15 15 Tc 12 12 12 12 Wz 20 20 20 20 15 Wz 15 15 15 15 12