Session Notes for session: r4068 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4068 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-114-18:30:00 Nominal end: 2003-115-18:45:00 Current yyyyddd: 2003114 (2003.31) ( 12754 MJD, THUR 24APR.) Greenwich sidereal time: 8:39:29.98 (18:30: 0 UT) Sun's RA and DEC: 2h 7.7m 12d 54.5 ========================================================== The following sources were included for research purposes: 2201+171 2205+166 0610+171 =========================================================== First observations Observation listing from file ./r4068.skd for experiment R4068 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0014+813 03114-183000| 98 98 98 | 1156+295 03114-183607| 98 98| 0642+449 03114-184008| 98 116 98 116 108| 0552+398 03114-184427| 98 98 151 152 152 98| 2136+141 03114-184847| 98 98 | End of listing. =========================================================== Last observations Observation listing from file ./r4068.skd for experiment R4068 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 1611+343 03115-182748| 98 98 98 98| End of listing. Observation listing from file ./r4068.skd for experiment R4068 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk Ny Tc Wz 0454-234 03115-181530| 98 149 149 | 3C274 03115-181714| 98 98| 1749+096 03115-181754| 98 98 | 3C446 03115-182055| 98 98 98 | 0003-066 03115-182359| 98 98 98 | 1611+343 03115-182748| 98 98 98 98| End of listing. =========================================================== SKED Summary from file ./r4068.skd for experiment R4068 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.8 Min = .0 Max = 68.6 (Baseline Ny-Wz on 1741-038) RMS = 5.2 Total time: 1439 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: 24 23 37 42 40 21 35 32 % cal. time: 2 1 2 2 2 0 2 2 % slew time: 51 22 17 12 13 2 8 18 % idle time: 20 52 41 42 43 75 53 47 # of tapes : .8 3.0 1.2 1.4 1.3 .8 1.1 total # scans: 193 125 240 200 226 66 211 180 # scans/hour : 8 5 10 8 9 2 8 7.5 Avg scan (sec): 111 162 135 182 153 276 143 166 tape change times (hhmm): 0000 0205 1445 1139 1244 0000 1623 0000 1003 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk Ny Tc Wz StnTotal ------------------------------------------ Ap|193 85 146 109 126 38 110 614 Ft| 125 52 31 65 40 97 370 Gc| 240 174 169 18 118 677 Kk| 200 111 38 66 529 Ny| 226 6 174 651 Tc| 66 22 162 Wz| 211 587 Number of 2-station scans: 123 Number of 3-station scans: 92 Number of 4-station scans: 70 Number of 5-station scans: 70 Number of 6-station scans: 17 Number of 7-station scans: 1 Total # of scans, observations: 373 1795 =========================================================== 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