Session Notes for session: r4029 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4029 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2002-199-18:30:00 Nominal end: 2002-200-19:00:00 Current yyyyddd: 2002199 (2002.55) ( 12474 MJD, THUR 18JUL.) Greenwich sidereal time: 14:15:34.47 (18:30: 0 UT) Sun's RA and DEC: 7h 51.8m 20d 57.3 ========================================================== The following sources were included for research purposes: 1251-407 1622-253 1647-296 I couldn't get 1251 on the intensive baseline, so didn't bother to observe it. msc =========================================================== First observations Observation listing from file ./r4029.skd for experiment R4029 Source Start DURATIONS name yyddd-hhmmss Kk Ap Ft Gc Ny Wz 0642+449 02199-183000| 117 142 142| 0718+793 02199-183000| 98 156 156 | 0202+149 02199-183459| 98 98 | 1606+106 02199-183545| 133 133 98| 0458-020 02199-183801| 107 107 | End of listing. =========================================================== Last observations Observation listing from file ./r4029.skd for experiment R4029 Source Start DURATIONS name yyddd-hhmmss Kk Ap Ft Gc Ny Wz 0059+581 02200-182741| 322 98 125 322 | End of listing. Observation listing from file ./r4029.skd for experiment R4029 Source Start DURATIONS name yyddd-hhmmss Kk Ap Ft Gc Ny Wz 1611+343 02200-181056| 98 98 98| 1357+769 02200-181405| 336 336 185 209 187| 1749+096 02200-181857| 98 98| 0458-020 02200-182201| 145 111 145 | 1334-127 02200-182240| 98 98| 0059+581 02200-182741| 322 98 125 322 | End of listing. =========================================================== SKED Summary from file ./r4029.skd for experiment R4029 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.7 Min = .0 Max = 64.0 (Baseline Ny-Wz on 1351-018) RMS = 5.8 Total time: 1443 minutes ( 24.0 hours). Key: Kk=KOKEE Ap=ALGOPARK Ft=FORTLEZA Gc=GILCREEK Ny=NYALES20 Wz=WETTZELL Kk Ap Ft Gc Ny Wz Avg % obs. time: 49 33 36 49 54 49 45 % cal. time: 2 2 2 3 3 3 2 % slew time: 13 50 30 20 15 10 23 % idle time: 33 13 30 27 26 37 28 # of tapes : .8 1.7 2.0 .8 .8 .8 total # scans: 253 241 176 282 260 260 245 # scans/hour : 10 10 7 11 10 10 10.2 Avg scan (sec): 169 118 179 151 179 163 159 tape change times (hhmm): 0000 0916 0531 0000 0000 0000 0000 0000 1802 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Kk Ap Ft Gc Ny Wz StnTotal -------------------------------------- Kk|253 100 31 204 92 45 472 Ap| 241 105 111 92 94 502 Ft| 176 42 65 110 353 Gc| 282 127 79 563 Ny| 260 184 560 Wz| 260 512 Number of 2-station scans: 311 Number of 3-station scans: 131 Number of 4-station scans: 82 Number of 5-station scans: 15 Number of 6-station scans: 9 Total # of scans, observations: 548 1481 =========================================================== Recording mode Name Code NEOS-WB NW Recording mode setup for: KOKEE GILCREEK 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= 680.0 MHz rms spanned bw= 252.6 MHz S-band spanned bw= 110.0 MHz rms spanned bw= 43.7 MHz Effective number of channels recorded per sub-pass X S Total 8.000 6.000 14.000 Recording mode setup for: ALGOPARK 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= 680.0 MHz rms spanned bw= 252.6 MHz S-band spanned bw= 110.0 MHz rms spanned bw= 43.7 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 Kk KOKEE 17400feet (Thin ) 56250. (High) Ap ALGOPARK 8700feet (Thick) 33333. (Low ) Ft FORTLEZA 8700feet (Thick) 33333. (Low ) Gc GILCREEK 17400feet (Thin ) 56250. (High) Ny NYALES20 17400feet (Thin ) 56250. (High) Wz WETTZELL 17400feet (Thin ) 56250. (High) =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 10) S-band (margin 6) Kk Ap Ft Gc Ny Kk Ap Ft Gc Ny Ap 20 Ap 15 Ft 20 20 Ft 15 15 Gc 20 20 20 Gc 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