Session Notes for session: r4074 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4074 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-156-18:30:00 Nominal end: 2003-157-18:45:00 Current yyyyddd: 2003156 (2003.43) ( 12796 MJD, THUR 5JUN.) Greenwich sidereal time: 11:25: 5.30 (18:30: 0 UT) Sun's RA and DEC: 4h 53.5m 22d 33.6 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4074.skd for experiment R4074 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ma Tc Wz 3C418 03156-183000| 98 98 98 | 1334-127 03156-183000| 98 98 98| 1749+096 03156-183401| 98 98| 0537-441 03156-183456| 98 98 | 0201+113 03156-183515| 98 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4074.skd for experiment R4074 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ma Tc Wz 1745+624 03157-182531| 186 520 520 | End of listing. Observation listing from file ./r4074.skd for experiment R4074 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ma Tc Wz 3C446 03157-181139| 98 98 | 0133+476 03157-181540| 98 98 98 98| 1739+522 03157-181833| 98 98 98 98| 1357+769 03157-182121| 98 98 98 98 98| 1334-127 03157-182523| 98 98 98| 1745+624 03157-182531| 186 520 520 | End of listing. =========================================================== SKED Summary from file ./r4074.skd for experiment R4074 (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 = 28.6 (Baseline Gc-Kk on 0727-115) RMS = 4.6 Total time: 1438 minutes ( 24.0 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Gc=GILCREEK Kk=KOKEE Ma=MATERA Tc=TIGO Wz=WETTZELL Ap Ft Gc Kk Ma Tc Wz Avg % obs. time: 26 25 37 42 36 26 34 32 % cal. time: 2 1 2 2 2 0 2 2 % slew time: 51 23 18 12 20 3 9 20 % idle time: 19 49 41 42 40 69 53 45 # of tapes : .8 3.3 1.2 1.4 1.2 .9 1.1 total # scans: 197 133 232 209 210 84 222 183 # scans/hour : 8 5 9 8 8 3 9 7.7 Avg scan (sec): 115 165 140 173 151 268 133 163 tape change times (hhmm): 0000 0032 1427 1220 1510 0000 1547 0000 0801 0000 0000 0000 0000 0000 0000 1610 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ma Tc Wz StnTotal ------------------------------------------ Ap|197 82 143 110 81 41 97 554 Ft| 133 42 28 96 51 90 389 Gc| 232 170 81 18 99 553 Kk| 209 35 46 50 439 Ma| 210 23 203 519 Tc| 84 22 201 Wz| 222 561 Number of 2-station scans: 181 Number of 3-station scans: 103 Number of 4-station scans: 78 Number of 5-station scans: 44 Number of 6-station scans: 14 Number of 7-station scans: 0 Total # of scans, observations: 420 1608 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK GILCREEK KOKEE MATERA 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) Ma MATERA 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 Ma Tc Ap Ft Gc Kk Ma Tc Ft 20 Ft 15 Gc 20 20 Gc 15 15 Kk 20 20 20 Kk 15 15 15 Ma 20 20 20 20 Ma 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