Session Notes for session: r4130 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4130 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2004-197-18:30:00 Nominal end: 2004-198-18:45:00 Current yyyyddd: 2004197 (2004.54) ( 13202 MJD, THUR 15JUL.) Greenwich sidereal time: 14: 5:46.78 (18:30: 0 UT) Sun's RA and DEC: 7h 41.8m 21d 22.7 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4130.skd for experiment R4130 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Mc Ny Tc Wz 1726+455 04197-183000| 98 98 98 | 1622-253 04197-183636| 98 98 | 0727-115 04197-184211| 98 100 100 | 1334-127 04197-184756| 262 146 262 | 0133+476 04197-184847| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4130.skd for experiment R4130 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Mc Ny Tc Wz 1334-127 04198-182611| 266 152 383 383| End of listing. Observation listing from file ./r4130.skd for experiment R4130 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Mc Ny Tc Wz 1726+455 04198-180747| 98 98 98 98| 1101+384 04198-181258| 115 115| 0402-362 04198-181448| 485 485 | 1611+343 04198-181844| 98 98 98 98 98| 1741-038 04198-182210| 98 98| 1334-127 04198-182611| 266 152 383 383| End of listing. =========================================================== SKED Summary from file ./r4130.skd for experiment R4130 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.3 Min = .0 Max = 43.6 (Baseline Ny-Tc on 1741-038) RMS = 4.3 Total time: 1440 minutes ( 24.0 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Kk=KOKEE Mc=MEDICINA Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Ft Kk Mc Ny Tc Wz Avg % obs. time: 25 21 38 33 36 22 39 30 % cal. time: 2 1 1 2 2 0 2 1 % slew time: 54 19 8 32 13 3 8 20 % idle time: 17 57 51 31 48 73 49 47 total # scans: 177 110 152 237 199 76 218 167 # scans/hour : 7 4 6 9 8 3 9 7.0 Avg scan (sec): 123 168 217 121 156 251 157 170 Total GBytes: 372 308 545 489 521 312 574 445 # of tapes : .8 2.8 1.3 1.1 1.2 .8 1.3 tape change times (hhmm): 0000 0308 1414 1709 1506 0000 1335 0000 1135 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Kk Mc Ny Tc Wz StnTotal ------------------------------------------ Ap|177 61 94 106 106 35 91 493 Ft| 110 26 76 37 52 66 318 Kk| 152 52 88 36 59 355 Mc| 237 159 25 208 626 Ny| 199 4 153 547 Tc| 76 22 174 Wz| 218 599 Number of 2-station scans: 117 Number of 3-station scans: 99 Number of 4-station scans: 82 Number of 5-station scans: 50 Number of 6-station scans: 10 Number of 7-station scans: 0 Total # of scans, observations: 358 1556 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK KOKEE MEDICINA 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 Mc MEDICINA 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 Mc Ny Tc Ap Ft Kk Mc Ny Tc Ft 20 Ft 15 Kk 20 20 Kk 15 15 Mc 20 20 20 Mc 15 15 15 Ny 20 20 20 20 Ny 15 15 15 15 Tc 15 15 15 15 15 Tc 12 12 12 12 12 Wz 20 20 20 20 20 15 Wz 15 15 15 15 15 12