Session Notes for session: r4032 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4032 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2002-220-18:30:00 Nominal end: 2002-221-18:45:00 Current yyyyddd: 2002220 (2002.60) ( 12495 MJD, THUR 8AUG.) Greenwich sidereal time: 15:38:22.14 (18:30: 0 UT) Sun's RA and DEC: 9h 14.0m 16d 1.8 ========================================================== The following sources were included for research purposes: none =========================================================== First observations Observation listing from file ./r4032.skd for experiment R4032 Source Start DURATIONS name yyddd-hhmmss Ap Gc Ho Kk Ny Wz 0459+135 02220-183000| 98 98 104 | 1749+096 02220-183000| 98 98| 0202+149 02220-183407| 98 98 98 | 0642+449 02220-183718| 98 98 98 107 107| 1156+295 02220-184013| 98 98 98| End of listing. =========================================================== Last observations Observation listing from file ./r4032.skd for experiment R4032 Source Start DURATIONS name yyddd-hhmmss Ap Gc Ho Kk Ny Wz 0402-362 02221-182131| 645 645 | End of listing. Observation listing from file ./r4032.skd for experiment R4032 Source Start DURATIONS name yyddd-hhmmss Ap Gc Ho Kk Ny Wz 3C274 02221-180844| 98 128 128| 0552+398 02221-181211| 98 98 98 | 1156+295 02221-181239| 98 98| 0229+131 02221-181521| 231 231 | 1101+384 02221-181640| 333 784 784 784| 0402-362 02221-182131| 645 645 | End of listing. =========================================================== SKED Summary from file ./r4032.skd for experiment R4032 (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 = 30.0 (Baseline Ny-Wz on 0458-020) RMS = 4.1 Total time: 1442 minutes ( 24.0 hours). Key: Ap=ALGOPARK Gc=GILCREEK Ho=HOBART26 Kk=KOKEE Ny=NYALES20 Wz=WETTZELL Ap Gc Ho Kk Ny Wz Avg % obs. time: 34 53 26 56 48 50 45 % cal. time: 2 3 1 3 3 3 2 % slew time: 46 16 19 13 16 10 20 % idle time: 15 26 52 27 31 35 31 # of tapes : 1.9 .8 1.5 .8 .7 .8 total # scans: 241 270 115 262 293 274 242 # scans/hour : 10 11 4 10 12 11 10.1 Avg scan (sec): 125 170 201 186 143 160 164 tape change times (hhmm): 0755 0000 0854 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Gc Ho Kk Ny Wz StnTotal -------------------------------------- Ap|241 140 0 97 124 117 478 Gc| 270 28 167 113 96 544 Ho| 115 88 16 19 151 Kk| 262 65 43 460 Ny| 293 205 523 Wz| 274 480 Number of 2-station scans: 308 Number of 3-station scans: 194 Number of 4-station scans: 43 Number of 5-station scans: 17 Number of 6-station scans: 0 Total # of scans, observations: 562 1318 =========================================================== Recording mode Name Code NEOS-WB NW Recording mode setup for: ALGOPARK HOBART26 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 Recording mode setup for: GILCREEK KOKEE 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 =========================================================== Tape types ID Station Tape length Density Ap ALGOPARK 8700feet (Thick) 33333. (Low ) Gc GILCREEK 17400feet (Thin ) 56250. (High) Ho HOBART26 8700feet (Thick) 33333. (Low ) Kk KOKEE 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) Ap Gc Ho Kk Ny Ap Gc Ho Kk Ny Gc 20 Gc 15 Ho 20 20 Ho 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