Session Notes for session: r4090 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4090 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-268-18:30:00 Nominal end: 2003-269-18:45:00 Current yyyyddd: 2003268 (2003.73) ( 12908 MJD, THUR 25SEP.) Greenwich sidereal time: 18:46:39.50 (18:30: 0 UT) Sun's RA and DEC: 12h 8.4m 0d 54.4 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4090.skd for experiment R4090 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 1611+343 03268-183000| 98 98 98 98 98| 0229+131 03268-183424| 98 98 98 | 2149+056 03268-183707| 98 98| 1334-127 03268-183724| 103 266 266 | 0727-115 03268-183846| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4090.skd for experiment R4090 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 1611+343 03269-182255| 98 205 152 221 221 207| End of listing. Observation listing from file ./r4090.skd for experiment R4090 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0955+476 03269-180101| 98 98 98 98 98| 1300+580 03269-180708| 98 364 254 364 364 330| 2136+141 03269-181535| 98 98| 1308+326 03269-181541| 98 98 98 | 0642+449 03269-181854| 98 98 98 | 1611+343 03269-182255| 98 205 152 221 221 207| End of listing. =========================================================== SKED Summary from file ./r4090.skd for experiment R4090 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.5 Min = .0 Max = 36.0 (Baseline Ny-Tc on 3C446 ) RMS = 4.4 Total time: 1434 minutes ( 23.9 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Gc=GILCREEK Kk=KOKEE Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Ft Gc Kk Ny Tc Wz Avg % obs. time: 23 22 38 41 39 17 37 31 % cal. time: 2 1 2 2 2 0 2 2 % slew time: 57 21 17 11 14 2 9 19 % idle time: 15 54 41 44 43 79 50 47 # of tapes : .8 2.9 1.2 1.3 1.3 .6 1.2 total # scans: 184 118 232 202 220 51 209 173 # scans/hour : 7 4 9 8 9 2 8 7.2 Avg scan (sec): 112 166 142 177 154 302 155 172 tape change times (hhmm): 0000 0328 1442 1304 1427 0000 1428 0000 1145 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ny Tc Wz StnTotal ------------------------------------------ Ap|184 78 135 107 119 29 109 577 Ft| 118 48 34 60 32 89 341 Gc| 232 174 165 12 121 655 Kk| 202 113 31 72 531 Ny| 220 6 175 638 Tc| 51 13 123 Wz| 209 579 Number of 2-station scans: 128 Number of 3-station scans: 75 Number of 4-station scans: 79 Number of 5-station scans: 61 Number of 6-station scans: 19 Number of 7-station scans: 0 Total # of scans, observations: 362 1722 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK GILCREEK KOKEE NYALES20 TIGOCONC 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 Ap ALGOPARK 17400feet (Thin ) 56250. (High) Ft FORTLEZA 8700feet (Thick) 33333. (Low ) Gc GILCREEK 17400feet (Thin ) 56250. (High) Kk KOKEE 17400feet (Thin ) 56250. (High) Ny NYALES20 17400feet (Thin ) 56250. (High) Tc TIGOCONC 17400feet (Thin ) 56250. (High) 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 Gc Kk Ny Tc Ap Ft Gc Kk Ny Tc Ft 20 Ft 15 Gc 20 20 Gc 15 15 Kk 20 20 20 Kk 15 15 15 Ny 20 20 20 20 Ny 15 15 15 15 Tc 15 15 15 15 15 Tc 12 12 12 12 12 Wz 20 20 20 20 20 15 Wz 15 15 15 15 15 12