Session Notes for session: r4148 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4148 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2004-323-18:30:00 Nominal end: 2004-324-18:45:00 Current yyyyddd: 2004323 (2004.88) ( 13328 MJD, THUR 18NOV.) Greenwich sidereal time: 22:22:32.76 (18:30: 0 UT) Sun's RA and DEC: 15h 37.9m -19d 26.0 ========================================================== This was scheduled using source.cat.geodetic.good msc =========================================================== First observations Observation listing from file ./r4148.skd for experiment R4148 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 2318+049 04323-183000| 269 269 | 1622-253 04323-183853| 98 197 197 | 1156+295 04323-184442| 98 98 | 1739+522 04323-184725| 98 98 | 0014+813 04323-185027| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4148.skd for experiment R4148 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 3C274 04324-182322| 187 187 | End of listing. Observation listing from file ./r4148.skd for experiment R4148 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ny Tc Wz 1908-201 04324-180745| 98 98 | 0202+149 04324-180908| 98 98| 3C446 04324-181221| 125 171 171| 0743+259 04324-181309| 211 211 | 1334-127 04324-181819| 98 231 231 | 3C274 04324-182322| 187 187 | End of listing. =========================================================== SKED Summary from file ./r4148.skd for experiment R4148 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.6 Min = .0 Max = 43.6 (Baseline Ny-Wz on 1741-038) RMS = 4.4 Total time: 1436 minutes ( 23.9 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Kk=KOKEE Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Ft Kk Ny Tc Wz Avg % obs. time: 25 25 39 37 22 35 30 % cal. time: 2 1 2 2 0 2 1 % slew time: 55 24 9 14 4 9 19 % idle time: 16 48 48 45 72 52 47 total # scans: 187 131 173 216 82 207 166 # scans/hour : 7 5 7 9 3 8 6.9 Avg scan (sec): 118 165 197 148 232 147 167 Total GBytes: 379 361 566 537 313 512 444 # of tapes : .8 3.2 1.3 1.2 .8 1.1 tape change times (hhmm): 0000 0230 1336 1456 0000 1549 0000 1003 0000 0000 0000 0000 0000 1700 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Kk Ny Tc Wz StnTotal -------------------------------------- Ap|187 73 117 115 37 99 441 Ft| 131 30 52 58 82 295 Kk| 173 106 39 69 361 Ny| 216 3 170 446 Tc| 82 22 159 Wz| 207 442 Number of 2-station scans: 159 Number of 3-station scans: 90 Number of 4-station scans: 88 Number of 5-station scans: 10 Number of 6-station scans: 1 Total # of scans, observations: 348 1072 =========================================================== 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