Session Notes for R1 (Rapid Turnaround Monday) session: r1023.skd 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 R1023 Experiment description: IVS-R1 Scheduler: NASA Correlator: BONN Nominal start: 2002-161-17:00:00 Nominal end: 2002-162-17:00:00 Current yyyyddd: 2002161 (2002.44) ( 12436 MJD, MON. 10JUN.) Greenwich sidereal time: 10:15:30.58 (17: 0: 0 UT) Sun's RA and DEC: 5h 14.9m 23d 2.1 =========================================================== The following sources were included for research purposes: 1116+128 (97 observations), 1252+119 (56 observations), 1551+130 (57 observations), 2000+148 (65 observations). =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Tc Wf Wz 0727-115 02161-170000| 56 99 99| 0642+449 02161-170000| 30 30 30 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Tc Wf Wz 1334-127 02162-164422| 30 30 30| 2234+282 02162-164526| 30 30 | 0642+449 02162-164734| 108 170 170 170 152| =========================================================== SKED Summary from file ./r1023.skd for experiment R1023 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 4.8 Min = .0 Max = 26.8 (Baseline Ma-Wz on 1116+128) RMS = 6.0 Total time: 1429 minutes ( 23.8 hours). Key: Gc=GILCREEK Hh=HARTRAO Ma=MATERA Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Ma Tc Wf Wz Avg % obs. time: 31 16 34 12 41 32 28 % cal. time: 5 2 5 0 5 5 4 % slew time: 25 33 35 2 20 16 22 % idle time: 38 48 24 84 32 44 45 # of tapes : 1.8 .9 2.0 .7 2.3 1.9 total # scans: 434 175 445 84 464 494 349 # scans/hour : 18 7 18 3 19 20 14.6 Avg scan (sec): 61 79 67 126 75 57 77 tape change times (hhmm): 0656 0000 0446 0000 0306 0547 0000 0000 0000 0000 1356 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Tc Wf Wz StnTotal -------------------------------------- Gc|434 22 244 47 381 299 993 Hh| 175 171 20 67 163 443 Ma| 445 32 264 435 1146 Tc| 84 77 35 211 Wf| 464 308 1097 Wz| 494 1240 Number of 2-station scans: 188 Number of 3-station scans: 214 Number of 4-station scans: 215 Number of 5-station scans: 40 Number of 6-station scans: 3 Total # of scans, observations: 660 2565 =========================================================== 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 TIGOCONC WESTFORD WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 256.000 Mbits 128.000 MHz 14 1 NONE 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) 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 Tc Wf Gc Hh Ma Tc Wf Hh 20 Hh 15 Ma 20 20 Ma 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