Session Notes for session: r4101 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4101 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-345-18:30:00 Nominal end: 2003-346-18:35:00 Current yyyyddd: 2003345 (2003.95) ( 12985 MJD, THUR 11DEC.) Greenwich sidereal time: 23:50:14.26 (18:30: 0 UT) Sun's RA and DEC: 17h 13.4m -23d .4 ========================================================== The following sources were included for research purposes: 1608+243, 0354+231, 0025+197, 0834+250, 1756+237 =========================================================== First observations Observation listing from file ./r4101.skd for experiment R4101 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ma Ny Wz 1156+295 03345-183000| 98 98 98 98 | 3C446 03345-183000| 128 128 98| 0642+449 03345-183446| 98 98 126 126 114| CTA26 03345-183825| 98 98 98| 1741-038 03345-183854| 98 98 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4101.skd for experiment R4101 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ma Ny Wz 3C274 03346-181709| 185 185 | End of listing. Observation listing from file ./r4101.skd for experiment R4101 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ma Ny Wz 0104-408 03346-174803| 714 714 | 0834+250 03346-175017| 741 774 774 | 1908-201 03346-180258| 227 227 | 0536+145 03346-180403| 281 281 248| 0133+476 03346-181210| 98 162 162 111 137 98| 3C274 03346-181709| 185 185 | End of listing. =========================================================== SKED Summary from file ./r4101.skd for experiment R4101 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.7 Min = .0 Max = 174.5 (Baseline Ny-Wz on CTA26 ) RMS = 6.3 Total time: 1430 minutes ( 23.8 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Gc=GILCREEK Kk=KOKEE Ma=MATERA Ny=NYALES20 Wz=WETTZELL Ap Ft Gc Kk Ma Ny Wz Avg % obs. time: 25 24 45 46 47 49 38 39 % cal. time: 2 1 2 1 2 2 2 2 % slew time: 56 18 16 9 18 12 8 20 % idle time: 16 56 35 42 31 35 50 38 total # scans: 173 93 215 171 186 187 196 174 # scans/hour : 7 3 9 7 7 7 8 7.3 Avg scan (sec): 124 222 182 230 219 227 169 196 Total GBytes: 182 170 325 324 336 349 277 280 # of tapes : .4 1.4 .7 .8 .8 .8 .6 tape change times (hhmm): 0000 1223 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ma Ny Wz StnTotal ------------------------------------------ Ap|173 62 131 98 84 105 95 575 Ft| 93 42 25 71 44 69 313 Gc| 215 162 87 136 99 657 Kk| 171 46 92 58 481 Ma| 186 137 183 608 Ny| 187 149 663 Wz| 196 653 Number of 2-station scans: 90 Number of 3-station scans: 96 Number of 4-station scans: 57 Number of 5-station scans: 37 Number of 6-station scans: 45 Number of 7-station scans: 10 Total # of scans, observations: 335 1975 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK GILCREEK KOKEE MATERA NYALES20 WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel C 56.000 Mbits 28.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 2.00 MHz 2 14(*0) 28 80.00 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 56.000 Mbits 28.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 2.00 MHz 2 14(*0) 28 135.00 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 Gc GILCREEK 17400feet (Thin ) 56250. (High) 12 Kk KOKEE 17400feet (Thin ) 56250. (High) 12 Ma MATERA 17400feet (Thin ) 56250. (High) 12 Ny NYALES20 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 Gc Kk Ma Ny Ap Ft Gc Kk Ma Ny Ft 20 Ft 15 Gc 20 20 Gc 15 15 Kk 20 20 20 Kk 15 15 15 Ma 20 20 20 20 Ma 15 15 15 15 Ny 20 20 20 20 20 Ny 15 15 15 15 15 Wz 20 20 20 20 20 20 Wz 15 15 15 15 15 15