Session Notes for session: r4018 Prepared by Merri Sue Carter, USNO. =========================================================== Parameter values for experiment R4012 Experiment description: NEOSA Scheduler: tbd Correlator: USNO Nominal start: 2002-122-18:30:00 Nominal end: 2002-123-18:45:00 Current yyyyddd: 2002122 (2002.33) ( 12397 MJD, THUR 2MAY.) Greenwich sidereal time: 9:11:59.71 (18:30: 0 UT) Sun's RA and DEC: 2h 39.0m 15d 29.5 =========================================================== The following sources were included for research purposes: 0037+139 (13 observations), 0629+160 (18 observations), 1307+1221 (4 observations), 1830+139 (11 observations). =========================================================== First observations Observation listing from file ./r4018.skd for experiment R4012 Source Start DURATIONS name yyddd-hhmmss Ap Gc Ho Kk Ny Wz 0014+813 02122-183000| 98 145 145| 2136+141 02122-183000| 98 98 98 | 1830+139 02122-183447| 119 123 135 | 1307+121 02122-183448| 339 339| 1749+096 02122-183814| 98 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4018.skd for experiment R4012 Source Start DURATIONS name yyddd-hhmmss Ap Gc Ho Kk Ny Wz 0552+398 02123-182940| 98 98 98 98| End of listing. Observation listing from file ./r4018.skd for experiment R4012 Source Start DURATIONS name yyddd-hhmmss Ap Gc Ho Kk Ny Wz 1830+139 02123-181612| 124 124 | 0037+139 02123-181805| 98 319 319 | 1606+106 02123-182056| 148 148 | 1741-038 02123-182524| 98 98 | 0528+134 02123-182547| 98 98 98| 0552+398 02123-182940| 98 98 98 98| End of listing. =========================================================== SKED Summary from file ./r4018.skd for experiment R4012 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.2 Min = .0 Max = 31.1 (Baseline Gc-Ho on 0727-115) RMS = 4.9 Total time: 1441 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: 30 50 32 51 54 52 45 % cal. time: 2 3 1 3 3 3 3 % slew time: 53 19 30 16 17 10 24 % idle time: 13 26 35 28 24 33 26 # of tapes : 1.6 .8 1.8 .8 .8 .8 total # scans: 250 290 167 290 292 282 261 # scans/hour : 10 12 6 12 12 11 10.9 Avg scan (sec): 106 150 167 153 162 161 149 tape change times (hhmm): 0957 0000 0931 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Gc Ho Kk Ny Wz StnTotal -------------------------------------- Ap|250 164 11 108 115 130 528 Gc| 290 43 150 148 129 634 Ho| 167 132 22 15 223 Kk| 290 57 40 487 Ny| 292 225 567 Wz| 282 539 Number of 2-station scans: 320 Number of 3-station scans: 175 Number of 4-station scans: 84 Number of 5-station scans: 14 Number of 6-station scans: 0 Total # of scans, observations: 593 1489 =========================================================== 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