Session Notes for session: r4081 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4081 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-205-18:30:00 Nominal end: 2003-206-18:45:00 Current yyyyddd: 2003205 (2003.56) ( 12845 MJD, THUR 24JUL.) Greenwich sidereal time: 14:38:16.51 (18:30: 0 UT) Sun's RA and DEC: 8h 14.8m 19d 50.1 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4081.skd for experiment R4081 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ma Ny Sv Wz 0955+476 03205-183000| 98 169 169 168 168 98 145| 1749+096 03205-183532| 98 98 98| 1334-127 03205-183850| 98 98 98| 2136+141 03205-184242| 98 98 98 98| 0727-115 03205-184426| 98 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4081.skd for experiment R4081 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ma Ny Sv Wz 1923+210 03206-182004| 135 135 98 98| End of listing. Observation listing from file ./r4081.skd for experiment R4081 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ma Ny Sv Wz 1741-038 03206-175743| 98 98 98| 0727-115 03206-180019| 98 98 98 | 3C274 03206-180613| 158 345 345 98 177| 1611+343 03206-181402| 98 138 138 129 98 119| 1749+096 03206-181722| 98 98 98| 1923+210 03206-182004| 135 135 98 98| End of listing. =========================================================== SKED Summary from file ./r4081.skd for experiment R4081 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.0 Min = .0 Max = 32.5 (Baseline Ny-Sv on CTA26 ) RMS = 4.7 Total time: 1432 minutes ( 23.9 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Kk=KOKEE Ma=MATERA Ny=NYALES20 Sv=SVETLOE Wz=WETTZELL Ap Ft Kk Ma Ny Sv Wz Avg % obs. time: 26 35 37 47 47 20 38 36 % cal. time: 2 1 1 2 2 1 2 1 % slew time: 55 22 7 19 13 24 8 21 % idle time: 15 40 53 30 37 53 50 40 # of tapes : .4 2.2 .5 .7 .7 1.1 .6 total # scans: 182 123 147 197 192 144 207 170 # scans/hour : 7 5 6 8 8 6 8 7.1 Avg scan (sec): 125 250 216 207 212 120 159 184 tape change times (hhmm): 0000 0556 0000 0000 0000 1547 0000 0000 1618 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Kk Ma Ny Sv Wz StnTotal ------------------------------------------ Ap|182 81 111 82 106 83 98 561 Ft| 123 42 88 57 48 85 401 Kk| 147 43 91 51 56 394 Ma| 197 142 124 189 668 Ny| 192 129 155 680 Sv| 144 136 571 Wz| 207 719 Number of 2-station scans: 77 Number of 3-station scans: 77 Number of 4-station scans: 60 Number of 5-station scans: 48 Number of 6-station scans: 44 Number of 7-station scans: 9 Total # of scans, observations: 315 1997 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK 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 SVETLOE 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 Ap ALGOPARK 17400feet (Thin ) 56250. (High) Ft FORTLEZA 8700feet (Thick) 33333. (Low ) Kk KOKEE 17400feet (Thin ) 56250. (High) Ma MATERA 17400feet (Thin ) 56250. (High) Ny NYALES20 17400feet (Thin ) 56250. (High) Sv SVETLOE 8700feet (Thick) 33333. (Low ) Wz WETTZELL 17400feet (Thin ) 56250. (High) =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 3) Ap Ft Kk Ma Ny Sv Ap Ft Kk Ma Ny Sv Ft 20 Ft 15 Kk 20 20 Kk 15 15 Ma 20 20 20 Ma 15 15 15 Ny 20 20 20 20 Ny 15 15 15 15 Sv 20 20 20 20 20 Sv 15 15 15 15 15 Wz 20 20 20 20 20 20 Wz 15 15 15 15 15 15