Session Notes for session: r4160 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4160 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2005-041-18:30:00 Nominal end: 2005-042-18:45:00 Current yyyyddd: 2005041 (2005.11) ( 13412 MJD, THUR 10FEB.) Greenwich sidereal time: 3:53:43.41 (18:30: 0 UT) Sun's RA and DEC: 21h 38.0m -14d 8.0 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4160.skd for experiment R4160 Source Start DURATIONS name yyddd-hhmmss Ap Ft Hh Kk Ny Wz 1611+343 05041-183000| 98 98 | 0454-234 05041-183000| 98 98 | 4C39.25 05041-183534| 98 98 | 2243-123 05041-183654| 98 98 | 0552+398 05041-184413| 98 98 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4160.skd for experiment R4160 Source Start DURATIONS name yyddd-hhmmss Ap Ft Hh Kk Ny Wz 1053+815 05042-182255| 98 487 144 487| End of listing. Observation listing from file ./r4160.skd for experiment R4160 Source Start DURATIONS name yyddd-hhmmss Ap Ft Hh Kk Ny Wz 0552+398 05042-175910| 98 98 98 98 98| 2318+049 05042-180408| 231 231 212| 1749+096 05042-180708| 98 98 | 0955+476 05042-181037| 98 98 98| 0133+476 05042-181633| 98 255 255 98| 1053+815 05042-182255| 98 487 144 487| End of listing. =========================================================== SKED Summary from file ./r4160.skd for experiment R4160 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.9 Min = .0 Max = 21.8 (Baseline Ny-Wz on CTA26 ) RMS = 4.5 Total time: 1434 minutes ( 23.9 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Hh=HARTRAO Kk=KOKEE Ny=NYALES20 Wz=WETTZELL Ap Ft Hh Kk Ny Wz Avg % obs. time: 25 25 22 32 41 40 31 % cal. time: 2 1 1 1 2 2 2 % slew time: 57 27 25 8 14 10 23 % idle time: 14 45 50 57 41 46 42 total # scans: 192 146 120 160 229 236 180 # scans/hour : 8 6 5 6 9 9 7.5 Avg scan (sec): 114 147 161 173 156 147 149 Total GBytes: 376 362 323 461 599 585 451 # of tapes : .8 3.0 .7 1.0 2.3 1.3 tape change times (hhmm): 0000 0255 0000 1822 1932 1344 0000 1109 0000 0000 1304 0000 0000 1816 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Hh Kk Ny Wz StnTotal -------------------------------------- Ap|192 74 24 111 121 102 432 Ft| 146 79 36 59 92 340 Hh| 120 0 44 97 244 Kk| 160 107 69 323 Ny| 229 177 508 Wz| 236 537 Number of 2-station scans: 150 Number of 3-station scans: 120 Number of 4-station scans: 82 Number of 5-station scans: 19 Number of 6-station scans: 0 Total # of scans, observations: 371 1192 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK HARTRAO KOKEE NYALES20 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 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 Ap Ft Hh Kk Ny 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 Wz 20 20 20 20 20 Wz 15 15 15 15 15