Session Notes for session: r4100 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4100 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-338-18:30:00 Nominal end: 2003-339-18:45:00 Current yyyyddd: 2003338 (2003.93) ( 12978 MJD, THUR 4DEC.) Greenwich sidereal time: 23:22:38.38 (18:30: 0 UT) Sun's RA and DEC: 16h 42.8m -22d 15.2 ========================================================== The following sources were included for research purposes: 1434+235, 0002+200, 0515+208, 1056+212, 1318+225 =========================================================== First observations Observation listing from file ./r4100.skd for experiment R4100 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 1611+343 03338-183000| 98 98 98 98 98| 1255-316 03338-183000| 638 638 | 0552+398 03338-183401| 98 98 98| 0119+115 03338-183647| 98 98| 2149+056 03338-183922| 98 98 98| End of listing. =========================================================== Last observations Observation listing from file ./r4100.skd for experiment R4100 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 1318+225 03339-182939| 98 168 198 198 | End of listing. Observation listing from file ./r4100.skd for experiment R4100 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0059+581 03339-180959| 98 98 98 98 98| 1334-127 03339-181043| 508 508 | 2201+315 03339-181411| 187 98 187 | 3C446 03339-182028| 127 142 142| 3C274 03339-182439| 98 98 98 | 1318+225 03339-182939| 98 168 198 198 | End of listing. =========================================================== SKED Summary from file ./r4100.skd for experiment R4100 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.3 Min = .0 Max = 35.1 (Baseline Ny-Wz on 1741-038) RMS = 3.9 Total time: 1441 minutes ( 24.0 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 42 43 41 21 36 32 % cal. time: 2 1 2 2 2 0 2 2 % slew time: 55 19 18 12 15 2 8 19 % idle time: 19 56 35 41 40 75 51 45 total # scans: 186 116 251 207 233 64 210 181 # scans/hour : 7 4 10 8 9 2 8 7.5 Avg scan (sec): 107 170 145 179 152 288 152 170 Total GBytes: 342 330 613 619 598 301 536 477 # of tapes : .8 2.9 1.4 1.4 1.3 .7 1.2 tape change times (hhmm): 0000 0245 1200 1124 1353 0000 1502 0000 1134 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ny Tc Wz StnTotal ------------------------------------------ Ap|186 76 142 103 124 32 106 583 Ft| 116 49 27 60 42 83 337 Gc| 251 186 171 16 119 683 Kk| 207 115 32 68 531 Ny| 233 5 180 655 Tc| 64 18 145 Wz| 210 574 Number of 2-station scans: 137 Number of 3-station scans: 90 Number of 4-station scans: 71 Number of 5-station scans: 72 Number of 6-station scans: 12 Number of 7-station scans: 1 Total # of scans, observations: 383 1754 =========================================================== 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 Passes Ap ALGOPARK 17400feet (Thin ) 56250. (High) 12 Ft FORTLEZA 8700feet (Thick) 33333. (Low ) 12 Gc GILCREEK 17400feet (Thin ) 56250. (High) 12 Kk KOKEE 17400feet (Thin ) 56250. (High) 12 Ny NYALES20 17400feet (Thin ) 56250. (High) 12 Tc TIGOCONC 17400feet (Thin ) 56250. (High) 12 Wz WETTZELL 17400feet (Thin ) 56250. (High) 12 =========================================================== 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