Session Notes for R1 (Rapid Turnaround Monday) session: r1024.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 R1024 Experiment description: IVS-R1 Scheduler: NASA Correlator: WACO Nominal start: 2002-168-17:00:00 Nominal end: 2002-169-17:00:00 Current yyyyddd: 2002168 (2002.46) ( 12443 MJD, MON. 17JUN.) Greenwich sidereal time: 10:43: 6.47 (17: 0: 0 UT) Sun's RA and DEC: 5h 44.0m 23d 23.3 =========================================================== The following sources were included for research purposes: 0253+133 (53 observations), 1117+146 (53 observations), 1705+135 (50 observations), 2029+121 (47 observations). =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Tc Ts Wf 0727-115 02168-170000| 52 60 60| 1300+580 02168-170000| 42 42 30 | =========================================================== Last observations Observation listing from file ./r1024.skd for experiment R1024 Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Tc Ts Wf 1417+385 02169-164200| 49 49 30 30 | 0454-234 02169-164218| 104 104| NRAO512 02169-164338| 131 131 77 | 0106+013 02169-164753| 30 30 30| 0458-020 02169-164953| 116 116| =========================================================== SKED Summary from file ./r1024.skd for experiment R1024 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.9 Min = .0 Max = 24.0 (Baseline Hh-Ma on 0253+133) RMS = 5.3 Total time: 1431 minutes ( 23.9 hours). Key: Gc=GILCREEK Hh=HARTRAO Ma=MATERA Tc=TIGO Ts=TSUKUB32 Wf=WESTFORD Gc Hh Ma Tc Ts Wf Avg % obs. time: 30 14 32 12 22 35 24 % cal. time: 6 2 4 1 5 5 4 % slew time: 33 37 34 2 22 20 25 % idle time: 30 46 28 83 49 38 46 # of tapes : 1.8 .9 1.8 .7 1.4 2.0 total # scans: 543 187 420 92 483 448 362 # scans/hour : 22 7 17 3 20 18 15.1 Avg scan (sec): 47 66 65 114 40 68 66 tape change times (hhmm): 0703 0000 0637 0000 1111 0432 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Tc Ts Wf StnTotal -------------------------------------- Gc|543 21 237 37 397 350 1042 Hh| 187 161 23 64 65 334 Ma| 420 32 220 256 906 Tc| 92 12 77 181 Ts| 483 208 901 Wf| 448 956 Number of 2-station scans: 343 Number of 3-station scans: 279 Number of 4-station scans: 160 Number of 5-station scans: 2 Number of 6-station scans: 0 Total # of scans, observations: 784 2160 =========================================================== 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 TSUKUB32 WESTFORD 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) Ts TSUKUB32 17400feet (Thin ) 56250. (High) Wf WESTFORD 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 Ts Gc Hh Ma Tc Ts Hh 20 Hh 15 Ma 20 20 Ma 15 15 Tc 20 20 20 Tc 15 15 15 Ts 20 20 20 20 Ts 15 15 15 15 Wf 20 20 20 20 20 Wf 15 15 15 15 15