Session Notes for R1 (Rapid Turnaround Monday) session: r1112 Prepared by C. Thomas, NVI, Inc./GSFC Refer to http://ivscc.gsfc.nasa.gov/program/descrip2004.html#r1 for the session purpose. =========================================================== Parameter values for experiment R1112 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2004-061-17:00:00 Nominal end: 2004-062-17:00:00 Current yyyyddd: 2004061 (2004.17) ( 13066 MJD, MON. 1MAR.) Greenwich sidereal time: 3:39:20.46 (17: 0: 0 UT) Sun's RA and DEC: 22h 51.6m -7d 16.0 =========================================================== There are no observations for Wettzell from 18:00 U.T. to 20:00 U.T. Wettzell will participate in the intensive session during this two hour period. =========================================================== First observations name yyddd-hhmmss Gc Hh Sh Tc Wf Wz 0454-234 04061-170000| 70 135 135| 1611+343 04061-170000| 40 40 40 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Sh Tc Wf Wz 0235+164 04062-164047| 190 190 190 190| 0133+476 04062-164442| 40 40 40| LSI61303 04062-164605| 72 126 126 99| 1044+719 04062-164857| 58 58 40| 4C39.25 04062-165128| 40 40 40| =========================================================== SKED Summary from file ./r1112.skd for experiment R1112 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.5 Min = .0 Max = 37.8 (Baseline Tc-Wf on 1606+106) RMS = 6.2 Total time: 1432 minutes ( 23.9 hours). Key: Gc=GILCREEK Hh=HARTRAO Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Sh Tc Wf Wz Avg % obs. time: 38 27 26 34 46 38 35 % cal. time: 4 2 2 2 4 4 3 % slew time: 23 41 43 6 20 13 24 % idle time: 32 28 26 57 29 42 36 total # scans: 375 221 251 201 388 361 299 # scans/hour : 15 9 10 8 16 15 12.5 Avg scan (sec): 89 105 92 145 102 92 104 Total GBytes: 1341 918 923 1125 1570 1336 1202 # of tapes : 2.5 1.5 1.5 1.9 2.5 2.1 tape change times (hhmm): 0254 0922 0946 0631 0313 0530 1239 0000 0000 0000 1216 1533 # OF OBSERVATIONS BY BASELINE | Gc Hh Sh Tc Wf Wz StnTotal -------------------------------------- Gc|375 18 175 93 281 212 779 Hh| 221 80 79 88 161 426 Sh| 251 1 90 125 471 Tc| 201 175 92 440 Wf| 388 256 890 Wz| 361 846 Number of 2-station scans: 213 Number of 3-station scans: 239 Number of 4-station scans: 156 Number of 5-station scans: 6 Number of 6-station scans: 0 Total # of scans, observations: 614 1926 =========================================================== 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 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 Passes Gc GILCREEK 17400feet (Thin ) 56700. (High) 12 Hh HARTRAO 17400feet (Thin ) 56250. (High) 14 Sh SESHAN25 17400feet (Thin ) 56250. (High) 14 Tc TIGOCONC 17400feet (Thin ) 56250. (High) 14 Wf WESTFORD 17400feet (Thin ) 56250. (High) 14 Wz WETTZELL 17400feet (Thin ) 56250. (High) 14 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 3) Gc Hh Sh Tc Wf Gc Hh Sh Tc Wf Hh 20 Hh 15 Sh 20 20 Sh 15 15 Tc 15 15 15 Tc 12 12 12 Wf 20 20 20 15 Wf 15 15 15 12 Wz 20 20 20 15 20 Wz 15 15 15 12 15