Session Notes for R1 (Rapid Turnaround Monday) session: r1063 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 R1063 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2003-083-17:00:00 Nominal end: 2003-084-17:00:00 Current yyyyddd: 2003083 (2003.23) ( 12723 MJD, MON. 24MAR.) Greenwich sidereal time: 5: 7: 1.97 (17: 0: 0 UT) Sun's RA and DEC: 0h 13.4m 1d 26.9 =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 0202+149 03083-170000| 115 183 186 186 | 0808+019 03083-170000| 160 160 144| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 1057-797 03084-163053| 155 155 | 1726+455 03084-163414| 40 40 | 0955+476 03084-163623| 40 40 40 40| 0642+449 03084-164013| 40 44 44 50 50 40| 0602+673 03084-164219| 190 190 190 190 93| 1357+769 03084-164659| 40 52 66 66 46| =========================================================== SKED Summary from file ./r1063.skd for experiment R1063 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 4.1 Min = .0 Max = 22.3 (Baseline Tc-Wf on 0552+398) RMS = 5.1 Total time: 1427 minutes ( 23.8 hours). Key: Gc=GILCREEK Hh=HARTRAO Ma=MATERA Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Gc Hh Ma Sh Tc Wf Wz Avg % obs. time: 31 17 32 20 22 43 32 28 % cal. time: 4 2 4 2 1 4 4 3 % slew time: 26 37 32 43 4 18 15 25 % idle time: 36 42 30 33 71 33 47 42 # of tapes : 1.8 1.0 1.8 1.1 1.2 2.4 1.8 total # scans: 402 183 377 237 124 400 398 303 # scans/hour : 16 7 15 9 5 16 16 12.6 Avg scan (sec): 68 82 74 73 155 92 69 87 tape change times (hhmm): 0716 0000 0600 1457 1157 0321 0620 0000 0000 0000 0000 0000 1309 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|402 18 202 187 40 301 242 990 Hh| 183 145 53 49 61 125 451 Ma| 377 129 45 233 357 1111 Sh| 237 1 98 134 602 Tc| 124 100 45 280 Wf| 400 265 1058 Wz| 398 1168 Number of 2-station scans: 233 Number of 3-station scans: 132 Number of 4-station scans: 166 Number of 5-station scans: 113 Number of 6-station scans: 5 Number of 7-station scans: 0 Total # of scans, observations: 649 2830 =========================================================== 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 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) Ma MATERA 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 Ma Sh Tc Wf Gc Hh Ma Sh Tc Wf Hh 20 Hh 15 Ma 20 20 Ma 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