Session Notes for R1 (Rapid Turnaround Monday) session: r1098 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 R1098 Experiment description: IVS-R1 Scheduler: NASA Correlator: HAYSTACK Nominal start: 2003-328-17:00:00 Nominal end: 2003-329-17:00:00 Current yyyyddd: 2003328 (2003.90) ( 12968 MJD, MON. 24NOV.) Greenwich sidereal time: 21:12:58.04 (17: 0: 0 UT) Sun's RA and DEC: 15h 59.6m -20d 33.6 =========================================================== 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 were included for research purposes: 0017+200 (103 observations), 1617+229 (26 observations), 2223+210 ( 37 observations), 0725+219 (37 observations), 1040+244 ( 22 observations). ============================================================ First observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 1741-038 03328-170000| 40 76 50 76| 1044+719 03328-170000| 150 150 40 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Hh Ma Sh Tc Wf Wz 1606+106 03329-163726| 162 190 190 111 190| 0552+398 03329-164259| 40 40 40 40| 1739+522 03329-164533| 40 40 40 40| OQ208 03329-164732| 40 40 40| 0017+200 03329-165423| 40 40 40| =========================================================== SKED Summary from file ./r1098.skd for experiment R1098 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.7 Min = .0 Max = 22.7 (Baseline Tc-Wf on 0552+398) RMS = 4.8 Total time: 1435 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: 32 18 36 22 18 40 31 28 % cal. time: 4 2 4 2 1 4 4 3 % slew time: 26 35 31 45 4 18 12 25 % idle time: 36 43 27 28 75 36 51 42 # of tapes : 1.9 1.1 2.1 1.3 1.0 2.3 1.8 total # scans: 389 183 375 238 113 390 360 292 # scans/hour : 16 7 15 9 4 16 15 12.2 Avg scan (sec): 72 86 83 82 142 89 74 89 tape change times (hhmm): 0621 1626 0503 1306 0000 0410 0734 0000 0000 1654 0000 0000 1428 0000 # OF OBSERVATIONS BY BASELINE | Gc Hh Ma Sh Tc Wf Wz StnTotal ------------------------------------------ Gc|389 12 180 181 49 290 197 909 Hh| 183 157 60 41 66 126 462 Ma| 375 125 49 227 328 1066 Sh| 238 2 90 126 584 Tc| 113 98 49 288 Wf| 390 235 1006 Wz| 360 1061 Number of 2-station scans: 232 Number of 3-station scans: 134 Number of 4-station scans: 164 Number of 5-station scans: 98 Number of 6-station scans: 6 Number of 7-station scans: 0 Total # of scans, observations: 634 2688 =========================================================== 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 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