Session Notes for session: r4080 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4080 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-198-18:30:00 Nominal end: 2003-199-18:45:00 Current yyyyddd: 2003198 (2003.54) ( 12838 MJD, THUR 17JUL.) Greenwich sidereal time: 14:10:40.63 (18:30: 0 UT) Sun's RA and DEC: 7h 46.8m 21d 10.3 ========================================================== The following sources were included for research purposes: 0743+259, 1023+131 Removed: 1034-293 even though it has the grade "A" Added: 1053+815 due to good results in R1, has grade "C" ========================================================== First observations Observation listing from file ./r4080.skd for experiment R4080 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 4C39.25 03198-183000| 98 98 | 3C418 03198-183000| 109 116 155 155| 0458-020 03198-183419| 98 98 | 0642+449 03198-183741| 98 139 98 98 128 139| 0537-441 03198-184039| 123 123 | End of listing. =========================================================== Last observations Observation listing from file ./r4080.skd for experiment R4080 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0642+449 03199-182321| 98 98 98 128 128| End of listing. Observation listing from file ./r4080.skd for experiment R4080 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 2318+049 03199-180740| 98 98 | 2201+315 03199-181009| 254 254 | 3C274 03199-181022| 98 98 98| 0537-441 03199-181559| 114 114 | 0552+398 03199-181918| 98 98 98 98 98| 0642+449 03199-182321| 98 98 98 128 128| End of listing. =========================================================== SKED Summary from file ./r4080.skd for experiment R4080 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.4 Min = .0 Max = 68.6 (Baseline Ny-Wz on 1741-038) RMS = 4.8 Total time: 1435 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 21 36 43 39 24 34 31 % cal. time: 2 1 2 2 2 0 2 1 % slew time: 55 20 17 12 13 3 8 18 % idle time: 19 56 43 41 45 71 54 47 # of tapes : .8 3.0 1.2 1.5 1.3 .9 1.2 total # scans: 175 116 224 193 199 76 188 167 # scans/hour : 7 4 9 8 8 3 7 7.0 Avg scan (sec): 114 162 140 193 170 279 157 173 tape change times (hhmm): 0000 0142 1555 1123 1400 0000 1512 0000 1106 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ny Tc Wz StnTotal ------------------------------------------ Ap|175 65 129 96 103 35 89 517 Ft| 116 38 26 50 47 80 306 Gc| 224 162 146 16 102 593 Kk| 193 95 42 55 476 Ny| 199 7 154 555 Tc| 76 18 165 Wz| 188 498 Number of 2-station scans: 134 Number of 3-station scans: 96 Number of 4-station scans: 67 Number of 5-station scans: 56 Number of 6-station scans: 10 Number of 7-station scans: 1 Total # of scans, observations: 364 1555 =========================================================== 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