Session Notes for session: r4156 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4156 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2005-013-18:30:00 Nominal end: 2005-014-18:45:00 Current yyyyddd: 2005013 (2005.04) ( 13384 MJD, THUR 13JAN.) Greenwich sidereal time: 2: 3:19.86 (18:30: 0 UT) Sun's RA and DEC: 19h 42.2m -21d 21.7 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4156.skd for experiment R4156 Source Start DURATIONS name yyddd-hhmmss Ap Ft Hh Kk Ny Tc Wz 3C446 05013-183000| 98 125 98 125 | 1741-038 05013-183526| 98 98 | 0642+449 05013-184124| 98 98 | OQ208 05013-184525| 98 98 | CTA26 05013-184615| 119 119 | End of listing. =========================================================== Last observations Observation listing from file ./r4156.skd for experiment R4156 Source Start DURATIONS name yyddd-hhmmss Ap Ft Hh Kk Ny Tc Wz 1156+295 05014-182513| 293 293 | End of listing. Observation listing from file ./r4156.skd for experiment R4156 Source Start DURATIONS name yyddd-hhmmss Ap Ft Hh Kk Ny Tc Wz 0743+259 05014-180453| 520 520 275| 1622-253 05014-180623| 98 98 | 2126-158 05014-180720| 244 244 | 1749+096 05014-181613| 98 371 115 371 | 1300+580 05014-182152| 98 155 155 155| 1156+295 05014-182513| 293 293 | End of listing. =========================================================== SKED Summary from file ./r4156.skd for experiment R4156 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.4 Min = .0 Max = 32.7 (Baseline Ny-Wz on CTA26 ) RMS = 4.5 Total time: 1440 minutes ( 24.0 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Hh=HARTRAO Kk=KOKEE Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Ft Hh Kk Ny Tc Wz Avg % obs. time: 24 27 23 37 37 25 37 30 % cal. time: 2 1 1 1 2 1 2 1 % slew time: 55 26 23 9 13 4 8 20 % idle time: 18 44 51 51 45 68 50 47 total # scans: 180 143 110 166 211 96 217 160 # scans/hour : 7 5 4 6 8 4 9 6.7 Avg scan (sec): 118 167 185 194 153 233 150 171 Total GBytes: 364 400 338 534 544 368 550 442 # of tapes : .8 3.3 .8 1.2 1.2 .9 1.3 tape change times (hhmm): 0000 0125 0000 1505 1453 0000 1304 0000 0846 0000 0000 0000 0000 0000 0000 1638 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Hh Kk Ny Tc Wz StnTotal ------------------------------------------ Ap|180 70 26 99 104 48 89 436 Ft| 143 74 33 45 69 79 370 Hh| 110 0 33 35 83 251 Kk| 166 96 46 58 332 Ny| 211 3 162 443 Tc| 96 24 225 Wz| 217 495 Number of 2-station scans: 151 Number of 3-station scans: 111 Number of 4-station scans: 92 Number of 5-station scans: 24 Number of 6-station scans: 0 Number of 7-station scans: 0 Total # of scans, observations: 378 1276 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK HARTRAO 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 Hh HARTRAO 17400feet (Thin ) 56250. (High) 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 Hh Kk Ny Tc Ap Ft Hh Kk Ny Tc Ft 20 Ft 15 Hh 20 20 Hh 15 15 Kk 20 20 20 Kk 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