Session Notes for session: r4149 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4149 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2002-328-18:30:00 Nominal end: 2004-329-18:45:00 Current yyyyddd: 2002328 (2002.90) ( 12603 MJD, SUN. 24NOV.) Greenwich sidereal time: 22:44:10.11 (18:30: 0 UT) Sun's RA and DEC: 16h .9m -20d 37.3 ========================================================== WZ is down, so this is a re-made sked with out them. =========================================================== First observations Observation listing from file ./r4149.skd for experiment R4149 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk On Sv 3C446 02328-183000| 132 132 98| 1741-038 02328-183735| 98 98 | 4C39.25 02328-184026| 98 98 98| 2201+315 02328-184427| 98 98 | 1739+522 02328-184709| 183 98 183 98| End of listing. =========================================================== Last observations Observation listing from file ./r4149.skd for experiment R4149 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk On Sv 2136+141 02329-182434| 98 381 381 234| End of listing. Observation listing from file ./r4149.skd for experiment R4149 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk On Sv 1334-127 02329-180054| 98 98 | 1424-418 02329-180315| 576 576 | 2201+315 02329-180917| 98 98 | 2302+232 02329-181419| 220 220| 3C446 02329-181959| 132 132 98| 2136+141 02329-182434| 98 381 381 234| End of listing. =========================================================== SKED Summary from file ./r4149.skd for experiment R4149 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.2 Min = .0 Max = 26.2 (Baseline Gc-Kk on 1334-127) RMS = 3.7 Total time: 1436 minutes ( 23.9 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Gc=GILCREEK Kk=KOKEE On=ONSALA60 Sv=SVETLOE Ap Ft Gc Kk On Sv Avg % obs. time: 27 23 43 37 43 38 35 % cal. time: 2 1 2 1 2 2 1 % slew time: 55 17 14 9 12 31 23 % idle time: 15 58 39 51 41 27 38 total # scans: 183 87 202 151 178 201 167 # scans/hour : 7 3 8 6 7 8 7.0 Avg scan (sec): 128 231 186 216 210 164 189 Total GBytes: 198 165 313 269 309 276 255 # of tapes : .4 1.3 .7 .6 .7 .6 tape change times (hhmm): 0000 1252 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk On Sv StnTotal -------------------------------------- Ap|183 60 122 87 87 98 454 Ft| 87 32 23 57 45 217 Gc| 202 136 85 111 486 Kk| 151 45 58 349 On| 178 162 436 Sv| 201 474 Number of 2-station scans: 140 Number of 3-station scans: 96 Number of 4-station scans: 50 Number of 5-station scans: 42 Number of 6-station scans: 4 Total # of scans, observations: 332 1208 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK GILCREEK KOKEE ONSALA60 SVETLOE Mode Tot.Rate Tot.BandW #chan #bits Barrel C 56.000 Mbits 28.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 2.00 MHz 2 14(*0) 28 80.00 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 56.000 Mbits 28.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 2.00 MHz 2 14(*0) 28 135.00 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 Gc GILCREEK 17400feet (Thin ) 56250. (High) 12 Kk KOKEE 17400feet (Thin ) 56250. (High) 12 On ONSALA60 17400feet (Thin ) 56250. (High) 12 Sv SVETLOE 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 Gc Kk On Ap Ft Gc Kk On Ft 20 Ft 15 Gc 20 20 Gc 15 15 Kk 20 20 20 Kk 15 15 15 On 20 20 20 20 On 15 15 15 15 Sv 20 20 20 20 20 Sv 15 15 15 15 15