Session Notes for R1 (Rapid Turnaround Monday) session: r1046 Prepared by C. Thomas, NVI, Inc./GSFC Refer to http://ivscc.gsfc.nasa.gov/program/descrip2002.html#r1 for the session purpose. =========================================================== Parameter values for experiment R1046 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2002-322-17:00:00 Nominal end: 2002-323-17:00:00 Current yyyyddd: 2002322 (2002.88) ( 12597 MJD, MON. 18NOV.) Greenwich sidereal time: 20:50:16.00 (17: 0: 0 UT) Sun's RA and DEC: 15h 35.5m -19d 17.8 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1606+106 02322-170000| 158 190 190 190 108 190| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ma Ny Tc Wf Wz 1334-127 02323-164001| 190 190 | 0048-097 02323-164151| 40 40| 0528+134 02323-164210| 40 40 | 2121+053 02323-164513| 40 40 40 40| 2113+293 02323-164636| 168 168| OQ208 02323-165049| 40 40 40 40| 4C39.25 02323-165254| 40 40 40 | =========================================================== SKED Summary from file ./r1046.skd for experiment R1046 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 6.0 Min = .0 Max = 34.3 (Baseline Ny-Wf on 1741-038) RMS = 6.4 Total time: 1433 minutes ( 23.9 hours). Key: Gc=GILCREEK Ma=MATERA Ny=NYALES20 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Ma Ny Tc Wf Wz Avg % obs. time: 33 34 36 14 38 33 31 % cal. time: 5 4 5 1 4 5 4 % slew time: 29 34 27 2 20 15 21 % idle time: 31 26 30 81 36 44 41 # of tapes : 1.9 2.0 2.4 .8 2.1 1.9 total # scans: 445 421 491 87 425 470 389 # scans/hour : 18 17 20 3 17 19 16.2 Avg scan (sec): 64 70 63 144 78 62 80 tape change times (hhmm): 0540 0521 0257 0000 0508 0458 0000 0000 1330 0000 1536 0000 # OF OBSERVATIONS BY BASELINE | Gc Ma Ny Tc Wf Wz StnTotal -------------------------------------- Gc|445 227 387 36 330 271 1251 Ma| 421 320 39 254 417 1257 Ny| 491 27 314 371 1419 Tc| 87 76 38 216 Wf| 425 287 1261 Wz| 470 1384 Number of 2-station scans: 201 Number of 3-station scans: 152 Number of 4-station scans: 132 Number of 5-station scans: 175 Number of 6-station scans: 13 Total # of scans, observations: 673 3394 =========================================================== 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: MATERA NYALES20 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) Ma MATERA 17400feet (Thin ) 56250. (High) Ny NYALES20 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 Ma Ny Tc Wf Gc Ma Ny Tc Wf Ma 20 Ma 15 Ny 20 20 Ny 15 15 Tc 20 20 20 Tc 15 15 15 Wf 20 20 20 20 Wf 15 15 15 15 Wz 20 20 20 20 20 Wz 15 15 15 15 15