Session Notes for R1 (Rapid Turnaround Monday) session: r1052 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 R1052 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2003-006-17:00:00 Nominal end: 2003-007-17:00:00 Current yyyyddd: 2003006 (2003.02) ( 12646 MJD, MON. 6JAN.) Greenwich sidereal time: 0: 3:27.21 (17: 0: 0 UT) Sun's RA and DEC: 19h 9.3m -22d 29.1 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ny Sh Tc Wf Wz 2136+141 03006-170000| 190 190 190 | 4C39.25 03006-170000| 40 40 40 40| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ny Sh Tc Wf Wz 0104-408 03007-164328| 139 139 | 0823+033 03007-164428| 116 116 | 2145+067 03007-164714| 55 64 64 44| OJ287 03007-165004| 40 40 40 | 0528+134 03007-165139| 40 40| =========================================================== SKED Summary from file ./r1052.skd for experiment R1052 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.8 Min = .0 Max = 54.1 (Baseline Ny-Wz on CTA26 ) RMS = 5.2 Total time: 1432 minutes ( 23.9 hours). Key: Gc=GILCREEK Hh=HARTRAO Ny=NYALES20 Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Ny Sh Tc Wf Wz Avg % obs. time: 32 19 36 20 24 43 36 30 % cal. time: 5 2 5 2 1 4 5 3 % slew time: 28 42 25 45 5 20 16 26 % idle time: 33 35 32 30 68 31 41 39 # of tapes : 1.9 1.1 2.4 1.2 1.4 2.4 2.1 total # scans: 441 197 460 239 145 419 439 334 # scans/hour : 18 8 19 10 6 17 18 13.9 Avg scan (sec): 63 86 68 73 144 88 71 84 tape change times (hhmm): 0546 1428 0307 1358 1045 0257 0500 0000 0000 1303 0000 0000 1313 1647 # OF OBSERVATIONS BY BASELINE | Gc Hh Ny Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|441 11 342 176 37 305 250 1121 Hh| 197 57 62 70 63 124 387 Ny| 460 145 34 295 365 1238 Sh| 239 1 82 125 591 Tc| 145 102 48 292 Wf| 419 282 1129 Wz| 439 1194 Number of 2-station scans: 290 Number of 3-station scans: 143 Number of 4-station scans: 207 Number of 5-station scans: 97 Number of 6-station scans: 3 Number of 7-station scans: 0 Total # of scans, observations: 740 2976 =========================================================== 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 NYALES20 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) Ny NYALES20 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 Ny Sh Tc Wf Gc Hh Ny Sh Tc Wf Hh 20 Hh 15 Ny 20 20 Ny 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