Session Notes for session: r4076 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4076 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2003-170-18:30:00 Nominal end: 2003-171-18:45:00 Current yyyyddd: 2003170 (2003.47) ( 12810 MJD, THUR 19JUN.) Greenwich sidereal time: 12:20:17.08 (18:30: 0 UT) Sun's RA and DEC: 5h 51.6m 23d 25.5 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4076.skd for experiment R4076 Source Start DURATIONS name yyddd-hhmmss Ap Gc Kk Ma Ny Tc Wz 3C418 03170-183000| 98 98 98 | 1606+106 03170-183000| 98 98 98| 1255-316 03170-183401| 774 774 661| 1749+096 03170-184837| 98 98 98| 4C39.25 03170-185252| 98 98 98 98| End of listing. =========================================================== Last observations Observation listing from file ./r4076.skd for experiment R4076 Source Start DURATIONS name yyddd-hhmmss Ap Gc Kk Ma Ny Tc Wz 3C446 03171-182639| 98 98 | End of listing. Observation listing from file ./r4076.skd for experiment R4076 Source Start DURATIONS name yyddd-hhmmss Ap Gc Kk Ma Ny Tc Wz 0552+398 03171-181006| 98 98 140 140 98 98| 2318+049 03171-181426| 98 98 | CTA26 03171-181810| 98 196 128 196 | 0454-234 03171-182212| 98 124 124 | 0727-115 03171-182603| 98 98 | 3C446 03171-182639| 98 98 | End of listing. =========================================================== SKED Summary from file ./r4076.skd for experiment R4076 (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 = 54.1 (Baseline Ny-Wz on CTA26 ) RMS = 4.9 Total time: 1438 minutes ( 24.0 hours). Key: Ap=ALGOPARK Gc=GILCREEK Kk=KOKEE Ma=MATERA Ny=NYALES20 Tc=TIGO Wz=WETTZELL Ap Gc Kk Ma Ny Tc Wz Avg % obs. time: 26 35 44 36 34 29 32 34 % cal. time: 2 2 2 2 2 0 2 2 % slew time: 50 18 13 20 14 2 8 18 % idle time: 20 42 40 40 48 66 56 45 # of tapes : .8 1.1 1.4 1.2 1.1 1.0 1.0 total # scans: 189 231 205 204 213 74 218 190 # scans/hour : 7 9 8 8 8 3 9 7.9 Avg scan (sec): 120 134 185 153 139 345 127 171 tape change times (hhmm): 0000 1605 1227 1451 1616 0000 1747 # OF OBSERVATIONS BY BASELINE | Ap Gc Kk Ma Ny Tc Wz StnTotal ------------------------------------------ Ap|189 137 107 83 114 44 98 583 Gc| 231 170 90 152 18 107 674 Kk| 205 47 101 44 61 530 Ma| 204 151 19 201 591 Ny| 213 10 167 695 Tc| 74 17 152 Wz| 218 651 Number of 2-station scans: 135 Number of 3-station scans: 105 Number of 4-station scans: 64 Number of 5-station scans: 57 Number of 6-station scans: 30 Number of 7-station scans: 4 Total # of scans, observations: 395 1938 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK GILCREEK KOKEE MATERA 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 =========================================================== Tape types ID Station Tape length Density Ap ALGOPARK 17400feet (Thin ) 56250. (High) Gc GILCREEK 17400feet (Thin ) 56250. (High) Kk KOKEE 17400feet (Thin ) 56250. (High) Ma MATERA 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 Gc Kk Ma Ny Tc Ap Gc Kk Ma Ny Tc Gc 20 Gc 15 Kk 20 20 Kk 15 15 Ma 20 20 20 Ma 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