Session Notes for session: r4092 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4092 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-282-18:30:00 Nominal end: 2003-283-18:45:00 Current yyyyddd: 2003282 (2003.77) ( 12922 MJD, THUR 9OCT.) Greenwich sidereal time: 19:41:51.28 (18:30: 0 UT) Sun's RA and DEC: 12h 59.2m -6d 18.9 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4092.skd for experiment R4092 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 1611+343 03282-183000| 98 98 98 98 98| 1156+295 03282-183000| 341 341 | 0133+476 03282-183401| 98 98 98| 3C446 03282-183630| 98 98| 0727-115 03282-183804| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4092.skd for experiment R4092 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0458-020 03283-182409| 232 232 | End of listing. Observation listing from file ./r4092.skd for experiment R4092 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0552+398 03283-180437| 98 98 98 98 | 3C446 03283-180527| 98 98| 1308+326 03283-180801| 98 98 | 0014+813 03283-181225| 98 98 224 224 | 1357+769 03283-181833| 98 252 150 252 159 146| 0458-020 03283-182409| 232 232 | End of listing. =========================================================== SKED Summary from file ./r4092.skd for experiment R4092 (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 3C446 ) RMS = 4.2 Total time: 1438 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 39 40 37 19 36 31 % cal. time: 2 1 2 2 2 0 2 2 % slew time: 56 21 18 12 13 2 8 19 % idle time: 17 55 39 44 45 76 51 47 # of tapes : .8 2.8 1.3 1.3 1.2 .7 1.2 total # scans: 187 119 247 211 224 66 211 180 # scans/hour : 7 4 10 8 9 2 8 7.5 Avg scan (sec): 109 161 136 163 145 259 151 160 tape change times (hhmm): 0000 0433 1305 1218 1434 0000 1519 0000 1137 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ny Tc Wz StnTotal ------------------------------------------ Ap|187 69 144 116 123 32 102 586 Ft| 119 48 33 54 44 84 332 Gc| 247 185 168 18 121 684 Kk| 211 114 37 72 557 Ny| 224 6 176 641 Tc| 66 17 154 Wz| 211 572 Number of 2-station scans: 145 Number of 3-station scans: 79 Number of 4-station scans: 75 Number of 5-station scans: 67 Number of 6-station scans: 16 Number of 7-station scans: 1 Total # of scans, observations: 383 1763 =========================================================== 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