Session Notes for session: r4113 Prepared by Merri Sue Carter, USNO. (msc@maia.usno.navy.mil) =========================================================== Parameter values for experiment R4113 Experiment description: NEOSA Scheduler: tbd Correlator: TBD Nominal start: 2004-078-18:30:00 Nominal end: 2004-079-18:45:00 Current yyyyddd: 2004078 (2004.21) ( 13083 MJD, THUR 18MAR.) Greenwich sidereal time: 6:16:36.69 (18:30: 0 UT) Sun's RA and DEC: 23h 54.5m 0d 35.8 ========================================================== The following sources were included for research purposes: =========================================================== First observations Observation listing from file ./r4113.skd for experiment R4113 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk On Sv Wz 1308+326 04078-183000| 98 98 | 0727-115 04078-183000| 110 110 98 98| 3C274 04078-183413| 98 98 98| 0048-097 04078-183540| 136 136 | 3C446 04078-184002| 98 184 166 184 | End of listing. =========================================================== Last observations Observation listing from file ./r4113.skd for experiment R4113 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk On Sv Wz 2136+141 04079-182957| 98 98 98 | End of listing. Observation listing from file ./r4113.skd for experiment R4113 Source Start DURATIONS name yyddd-hhmmss Ap Ft Gc Kk On Sv Wz 1023+131 04079-175802| 421 421| 0552+398 04079-180751| 98 145 145 127 98 98| 1611+343 04079-181313| 109 102 109 98 | 1741-038 04079-181605| 98 98 | 0059+581 04079-181942| 98 216 102 216 152 98 98| 2136+141 04079-182957| 98 98 98 | End of listing. =========================================================== SKED Summary from file ./r4113.skd for experiment R4113 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 2.1 Min = .0 Max = 26.2 (Baseline Gc-Kk on 1334-127) RMS = 3.6 Total time: 1441 minutes ( 24.0 hours). Key: Ap=ALGOPARK Ft=FORTLEZA Gc=GILCREEK Kk=KOKEE On=ONSALA60 Sv=SVETLOE Wz=WETTZELL Ap Ft Gc Kk On Sv Wz Avg % obs. time: 24 20 46 38 44 38 43 36 % cal. time: 1 0 2 1 1 2 2 1 % slew time: 53 13 15 9 11 29 7 20 % idle time: 20 65 35 50 41 29 47 41 total # scans: 156 65 193 139 155 180 174 151 # scans/hour : 6 2 8 5 6 7 7 6.3 Avg scan (sec): 134 271 209 238 249 186 213 214 Total GBytes: 176 144 334 271 316 278 306 260 # of tapes : .4 1.3 .7 .6 .7 2.3 .7 tape change times (hhmm): 0000 1408 0000 0000 0000 0440 0000 0000 0000 0000 0000 0000 1550 0000 # OF OBSERVATIONS BY BASELINE | Ap Ft Gc Kk On Sv Wz StnTotal ------------------------------------------ Ap|156 43 112 74 71 80 77 457 Ft| 65 27 17 43 33 47 210 Gc| 193 130 79 103 81 532 Kk| 139 46 53 44 364 On| 155 134 150 523 Sv| 180 149 552 Wz| 174 548 Number of 2-station scans: 96 Number of 3-station scans: 98 Number of 4-station scans: 44 Number of 5-station scans: 30 Number of 6-station scans: 37 Number of 7-station scans: 4 Total # of scans, observations: 309 1593 =========================================================== Recording mode Name Code GEOSXR4 SX Recording mode setup for: ALGOPARK GILCREEK KOKEE ONSALA60 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= 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 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) 28 135.00 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 8700feet (Thick) 33333. (Low ) 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 Gc Kk On Sv Ap Ft Gc Kk On Sv 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 Wz 20 20 20 20 20 20 Wz 15 15 15 15 15 15