Session Notes for R1 (Rapid Turnaround Monday) session: r1103 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 R1103 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2003-363-17:00:00 Nominal end: 2003-364-17:00:00 Current yyyyddd: 2003363 (2003.99) ( 13003 MJD, MON. 29DEC.) Greenwich sidereal time: 23:30:57.00 (17: 0: 0 UT) Sun's RA and DEC: 18h 32.9m -23d 13.4 =========================================================== There are no observations for Wettzell from 18:00 U.T. to 20:00 U.T. Wettzell will participate in the intensive session during this two hour period. =========================================================== The following sources could not be included for research purposes because the SNRs were too low: 2302+232, 0021+243, 0601+245, and 0547+234. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 2145+067 03363-170000| 190 71 190 | 1357+769 03363-170000| 56 101 101 90| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 4C39.25 03364-164622| 40 40 40| 1606+106 03364-164859| 177 177 112 | 0104-408 03364-165051| 66 66 | =========================================================== SKED Summary from file ./r1103.skd for experiment R1103 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 7.1 Min = .0 Max = 72.0 (Baseline Sh-Tc on 0607-157) RMS = 7.7 Total time: 1432 minutes ( 23.9 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: 36 20 39 27 21 40 35 31 % cal. time: 4 2 4 2 1 3 4 3 % slew time: 24 35 29 43 4 16 12 23 % idle time: 34 42 26 27 72 38 47 41 total # scans: 362 176 354 243 124 343 347 278 # scans/hour : 15 7 14 10 5 14 14 11.6 Avg scan (sec): 86 99 95 95 145 101 88 101 Total GBytes: 1122 617 1199 820 617 1224 1089 955 # of 8-packs: 1.2 .6 1.2 .9 .6 1.3 1.1 # of tapes : 2.0 1.1 2.1 1.5 1.1 2.2 1.9 tape change times (hhmm): 0451 1443 0414 0958 1330 0337 0651 0000 0000 1522 0000 0000 1506 0000 Total number of tapes: 12.1 Total GBytes recorded: 6690.8 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|362 14 184 182 53 253 203 889 Hh| 176 148 58 46 60 119 445 Ma| 354 137 54 200 306 1029 Sh| 243 1 96 134 608 Tc| 124 108 52 314 Wf| 343 213 930 Wz| 347 1027 Number of 2-station scans: 186 Number of 3-station scans: 144 Number of 4-station scans: 148 Number of 5-station scans: 107 Number of 6-station scans: 3 Number of 7-station scans: 0 Total # of scans, observations: 588 2621 =========================================================== 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 Speed ID Station Tape length Speed Gc GILCREEK 17400feet (Thin ) 56700. (High) 14 Hh HARTRAO 17400feet (Thin ) 56250. (High) 14 Ma MATERA 17400feet (Thin ) 56250. (High) 14 Sh SESHAN25 17400feet (Thin ) 56250. (High) 14 Tc TIGOCONC 17400feet (Thin ) 56250. (High) 14 Wf WESTFORD 17400feet (Thin ) 56250. (High) 14 Wz WETTZELL 17400feet (Thin ) 56250. (High) 14 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 3) 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 15 15 15 15 Tc 12 12 12 12 Wf 20 20 20 20 15 Wf 15 15 15 15 12 Wz 20 20 20 20 15 20 Wz 15 15 15 15 12 15