Session Notes for R1 (Rapid Turnaround Monday) session: r1091 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 R1091 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2003-279-17:00:00 Nominal end: 2003-280-17:00:00 Current yyyyddd: 2003279 (2003.76) ( 12919 MJD, MON. 6OCT.) Greenwich sidereal time: 17:59:46.83 (17: 0: 0 UT) Sun's RA and DEC: 12h 47.9m -5d 8.7 =========================================================== 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 Source Start DURATIONS name yyddd-hhmmss Gc Hh Sh Tc Wf Wz 1519-273 03279-170000| 132 132 127 | 1739+522 03279-170000| 40 41 41| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Sh Tc Wf Wz 0552+398 03280-163858| 40 51 51 | 1606+106 03280-164120| 115 190 111 190| 1741-038 03280-164521| 40 112 67 112| OQ208 03280-164801| 40 40 40| =========================================================== SKED Summary from file ./r1091.skd for experiment R1091 (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 = 25.0 (Baseline Tc-Wf on 1606+106) RMS = 5.0 Total time: 1428 minutes ( 23.8 hours). Key: Gc=GILCREEK Hh=HARTRAO Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Sh Tc Wf Wz Avg % obs. time: 34 18 21 19 42 34 28 % cal. time: 5 2 2 1 5 4 3 % slew time: 28 36 43 4 21 15 25 % idle time: 31 43 32 74 31 45 43 # of tapes : 1.9 1.0 1.2 1.1 2.3 1.9 total # scans: 435 175 240 124 436 393 300 # scans/hour : 18 7 10 5 18 16 12.5 Avg scan (sec): 68 89 77 133 83 75 87 tape change times (hhmm): 0505 0000 1323 1634 0336 0626 0000 0000 0000 0000 1410 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Sh Tc Wf Wz StnTotal -------------------------------------- Gc|435 12 190 52 332 244 830 Hh| 175 52 46 63 131 304 Sh| 240 1 97 122 462 Tc| 124 108 51 258 Wf| 436 283 883 Wz| 393 831 Number of 2-station scans: 276 Number of 3-station scans: 254 Number of 4-station scans: 116 Number of 5-station scans: 5 Number of 6-station scans: 0 Total # of scans, observations: 651 1784 =========================================================== 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 Gc GILCREEK 17400feet (Thin ) 56700. (High) Hh HARTRAO 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 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