Session Notes for session: r4124 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4124 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2004-155-18:30:00 Nominal end: 2004-156-18:45:00 Current yyyyddd: 2004155 (2004.42) ( 13160 MJD, THUR 3JUN.) Greenwich sidereal time: 11:20:11.45 (18:30: 0 UT) Sun's RA and DEC: 4h 48.4m 22d 25.2 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4124.skd for experiment R4124 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 0642+449 04155-183000| 98 135 135 | 0552+398 04155-183641| 98 98 232 232 | 0537-441 04155-184256| 132 132 | 3C371 04155-185005| 98 98 | 1308+326 04155-185429| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4124.skd for experiment R4124 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 1334-127 04156-183054| 98 98| End of listing. Observation listing from file ./r4124.skd for experiment R4124 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 0537-441 04156-181525| 144 144 | 1726+455 04156-181750| 98 98| 0458-020 04156-181841| 112 112 | 3C274 04156-182115| 98 98| 0727-115 04156-182308| 98 119 119 | 1334-127 04156-183054| 98 98| End of listing. =========================================================== SKED Summary from file ./r4124.skd for experiment R4124 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.1 Min = .0 Max = 54.1 (Baseline Ny-Wz on CTA26 ) RMS = 4.3 Total time: 1442 minutes ( 24.0 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Kk=KOKEE Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Ft Kk Ny Tc Wz Avg % obs. time: 24 21 40 43 17 39 31 % cal. time: 2 1 1 2 0 2 1 % slew time: 58 21 9 15 2 8 19 % idle time: 14 55 47 38 78 49 47 total # scans: 185 114 163 221 63 206 158 # scans/hour : 7 4 6 9 2 8 6.6 Avg scan (sec): 116 163 216 171 243 166 179 Total GBytes: 369 311 581 631 251 571 452 # of tapes : .8 2.8 1.3 1.4 .7 1.3 tape change times (hhmm): 0000 0249 1120 1122 0000 1348 0000 1223 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Kk Ny Tc Wz StnTotal -------------------------------------- Ap|185 65 110 115 33 94 417 Ft| 114 20 51 43 81 260 Kk| 163 102 29 60 321 Ny| 221 4 171 443 Tc| 63 17 126 Wz| 206 423 Number of 2-station scans: 156 Number of 3-station scans: 98 Number of 4-station scans: 75 Number of 5-station scans: 8 Number of 6-station scans: 1 Total # of scans, observations: 338 995 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK 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 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 Kk Ny Tc Ap Ft Kk Ny Tc Ft 20 Ft 15 Kk 20 20 Kk 15 15 Ny 20 20 20 Ny 15 15 15 Tc 15 15 15 15 Tc 12 12 12 12 Wz 20 20 20 20 15 Wz 15 15 15 15 12