Session Notes for session: r4023 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4023 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2002-157-18:30:00 Nominal end: 2002-128-19:00:00 Current yyyyddd: 2002157 (2002.43) ( 12432 MJD, THUR 6JUN.) Greenwich sidereal time: 11:29:59.15 (18:30: 0 UT) Sun's RA and DEC: 4h 58.7m 22d 41.4 ========================================================== The following sources were included for research purposes: 1116+128, 1551+130, 2000+148, 1252+119 =========================================================== First observations Observation listing from file ./r4023.skd for experiment R4023 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ma Ny Wz 1357+769 02157-183000| 113 113 98 98| 0552+398 02157-183000| 98 98 | 1116+128 02157-183456| 499 499 98 263| 0458-020 02157-183640| 132 132 | 0133+476 02157-184303| 98 98 98 98| End of listing. =========================================================== Last observations Observation listing from file ./r4023.skd for experiment R4023 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ma Ny Wz 1308+326 02158-181724| 98 98 98| End of listing. Observation listing from file ./r4023.skd for experiment R4023 Source Start DURATIONS name yyddd-hhmmss Ap Ft Kk Ma Ny Wz 1551+130 02158-175456| 525 98 525| 0458-020 02158-180210| 127 127 | 1252+119 02158-180636| 505 98 505| 0727-115 02158-180640| 98 98 | 0119+115 02158-181311| 485 485 | 1308+326 02158-181724| 98 98 98| End of listing. =========================================================== SKED Summary from file ./r4023.skd for experiment R4023 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.3 Min = .0 Max = 23.2 (Baseline Ny-Wz on 0458-020) RMS = 4.3 Total time: 1429 minutes ( 23.8 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Kk=KOKEE Ma=MATERA Ny=NYALES20 Wz=WETTZELL Ap Ft Kk Ma Ny Wz Avg % obs. time: 29 29 34 54 21 50 36 % cal. time: 2 1 1 2 2 2 2 % slew time: 48 21 6 21 11 9 19 % idle time: 19 47 57 21 64 37 41 # of tapes : 1.5 1.7 .5 .8 .3 .8 total # scans: 192 117 138 204 187 217 175 # scans/hour : 8 4 5 8 7 9 7.3 Avg scan (sec): 129 217 212 230 98 199 180 tape change times (hhmm): 1040 0711 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Kk Ma Ny Wz StnTotal -------------------------------------- Ap|192 84 119 84 119 95 501 Ft| 117 35 79 61 80 339 Kk| 138 40 83 53 330 Ma| 204 142 203 548 Ny| 187 153 558 Wz| 217 584 Number of 2-station scans: 87 Number of 3-station scans: 108 Number of 4-station scans: 64 Number of 5-station scans: 47 Number of 6-station scans: 11 Total # of scans, observations: 317 1430 =========================================================== Recording mode Name Code NEOS-WB NW Recording mode setup for: ALGOPARK 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= 680.0 MHz rms spanned bw= 252.6 MHz S-band spanned bw= 110.0 MHz rms spanned bw= 43.7 MHz Effective number of channels recorded per sub-pass X S Total 8.000 6.000 14.000 Recording mode setup for: KOKEE MATERA NYALES20 WETTZELL 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= 680.0 MHz rms spanned bw= 252.6 MHz S-band spanned bw= 110.0 MHz rms spanned bw= 43.7 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 8700feet (Thick) 33333. (Low ) Ft FORTLEZA 8700feet (Thick) 33333. (Low ) Kk KOKEE 17400feet (Thin ) 56250. (High) Ma MATERA 17400feet (Thin ) 56250. (High) Ny NYALES20 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 Kk Ma Ny Ap Ft Kk Ma Ny Ft 20 Ft 15 Kk 20 20 Kk 15 15 Ma 20 20 20 Ma 15 15 15 Ny 0 0 0 0 Ny 0 0 0 0 Wz 20 20 20 20 0 Wz 15 15 15 15 0