Session Notes for R1 (Rapid Turnaround Monday) session: r1071 Prepared by C. Thomas, NVI, Inc./GSFC Refer to http://ivscc.gsfc.nasa.gov/program/descrip2003.html#r1 for the session purpose. =========================================================== Parameter values for experiment R1071 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2003-139-17:00:00 Nominal end: 2003-140-17:00:00 Current yyyyddd: 2003139 (2003.38) ( 12779 MJD, MON. 19MAY.) Greenwich sidereal time: 8:47:49.07 (17: 0: 0 UT) Sun's RA and DEC: 3h 44.3m 19d 47.0 =========================================================== The following sources were included for research purposes: NGC3862 (58 observations) 1155+169 (59 observations) 1331+170 (55 observations) =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 0202+149 03139-170000| 133 190 190 | 1156+295 03139-170000| 115 57 115 48| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 0454-234 03140-161742| 71 77 77 | 1128+385 03140-161816| 80 155 155 130| 2234+282 03140-162145| 40 40 | 1155+169 03140-162420| 190 190 190 190| 0202+149 03140-162834| 133 190 | 1334-127 03140-162958| 40 40 40 40| 1124-186 03140-163308| 53 52 53| 1606+106 03140-163331| 40 40 | CTA26 03140-163407| 179 | 1749+096 03140-163633| 40 40 | 1057-797 03140-163824| 190 | 0133+476 03140-163917| 40 40 40 40| 0642+449 03140-164110| 40 40 40 40| 1803+784 03140-164325| 40 40 40 40 40| 3C446 03140-164628| 58 | 0003-066 03140-164852| 40 40 | 0106+013 03140-165015| 40 40 | 1331+170 03140-165305| 190 190 190 190| =========================================================== SKED Summary from file ./r1071.skd for experiment R1071 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.7 Min = .0 Max = 28.2 (Baseline Tc-Wf on 0955+476) RMS = 4.7 Total time: 1436 minutes ( 23.9 hours). Key: Gc=GILCREEK Hh=HARTRAO Ma=MATERA Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Ma Sh Tc Wf Wz Avg % obs. time: 31 20 35 24 18 42 33 29 % cal. time: 4 2 4 2 1 4 4 3 % slew time: 25 39 33 45 4 18 13 25 % idle time: 38 37 27 27 75 34 48 41 # of tapes : 1.8 1.1 1.9 1.4 1.0 2.4 1.9 total # scans: 376 188 360 236 108 373 376 288 # scans/hour : 15 7 15 9 4 15 15 12.0 Avg scan (sec): 71 91 84 89 149 97 76 93 tape change times (hhmm): 0656 1518 0503 1151 0000 0239 0529 0000 0000 0000 0000 0000 1236 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|376 12 182 171 39 278 214 896 Hh| 188 151 66 37 59 136 461 Ma| 360 125 40 213 342 1053 Sh| 236 1 85 130 578 Tc| 108 89 40 246 Wf| 373 241 965 Wz| 376 1103 Number of 2-station scans: 219 Number of 3-station scans: 124 Number of 4-station scans: 180 Number of 5-station scans: 92 Number of 6-station scans: 4 Number of 7-station scans: 0 Total # of scans, observations: 622 2651 =========================================================== Recording mode Name Code GEOSX4F 4F Recording mode setup for: GILCREEK Mode Tot.Rate Tot.BandW #chan #bits Barrel VLBA1:2 256.000 Mbits 128.000 MHz 14 1 8:1 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 16(*2) 32 160.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 120.0 MHz rms spanned bw= 48.8 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 Recording mode setup for: HARTRAO MATERA SESHAN25 TIGOCONC WESTFORD WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 256.000 Mbits 128.000 MHz 14 1 16 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 16(*2) 32 160.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 120.0 MHz rms spanned bw= 48.8 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 =========================================================== Tape types ID Station Tape length Density Gc GILCREEK 17400feet (Thin ) 56700. (High) Hh HARTRAO 17400feet (Thin ) 56250. (High) Ma MATERA 17400feet (Thin ) 56250. (High) Sh SESHAN25 17400feet (Thin ) 56250. (High) Tc TIGOCONC 17400feet (Thin ) 56250. (High) Wf WESTFORD 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 5) Gc Hh Ma Sh Tc Wf Gc Hh Ma Sh Tc Wf Hh 20 Hh 15 Ma 20 20 Ma 15 15 Sh 20 20 20 Sh 15 15 15 Tc 20 20 20 20 Tc 15 15 15 15 Wf 20 20 20 20 20 Wf 15 15 15 15 15 Wz 20 20 20 20 20 20 Wz 15 15 15 15 15 15