CRDS-78 (Southern Hemisphere Astrometry) 2015 August 12 (DOY 224) Notes prepared by Alan Fey, U.S. Naval Observatory Schedule name: crds78.skd Nominal Start: 17:30 U.T. on 2015 August 12 (DOY 224) first observation at 17:30 U.T. on 2220-351 Hh-Ho-Ke-Ww-Yg Duration: 24 hours Nominal Stop: 17:30 U.T. on 2015 August 13 (DOY 225) last observation at 17:26 U.T. on 2106-413 Hh-Ho-Ke-Ww-Yg Correlator: WACO at Washington, DC Station Codes # of tapes # of obs Occupation Code HARTRAO J 147 HOBART26 147 KATH12M 118 WARK12M 120 YARRA12M 141 Total number of observations (delay measurements): 1244 Total number of scans in the schedule: 147 Purpose ======= Astrometric observations to strenghten the ICRF in the Southern Hemisphere. Schedule ======== This is a new schedule generated by Alan Fey using sked. Correlation =========== Data should be shipped to the correlator as soon after the experiment as practical. Special procedures ================== None Summary ======= The following listing is a summary of the observations in this schedule. Average number of obs. per baseline per source(normalized by up-time) = 7.3 Min = 1.4 Max = 27.7 (Baseline Hh-Ww on 1144-379) RMS = 4.3 Total time: 1443 minutes ( 24.0 hours). Key: Hh=HARTRAO Ho=HOBART26 Ke=KATH12M Ww=WARK12M Yg=YARRA12M Hh Ho Ke Ww Yg Avg % obs. time: 71 71 57 58 68 65 % cal. time: 1 1 1 1 1 1 % slew time: 26 13 2 2 3 10 % idle time: 1 14 39 38 27 24 total # scans: 147 147 118 120 141 134 # scans/hour : 6 6 5 5 6 6 Avg scan (sec): 420 420 420 420 420 420 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total TB(M5): 2.0 2.0 1.6 1.6 1.9 1.8 # OF OBSERVATIONS BY BASELINE | Hh Ho Ke Ww Yg Total ----------------------------------- Hh| 147 118 120 141 526 Ho| 118 120 141 526 Ke| 105 118 459 Ww| 116 461 Yg| 516 Number of 2-station scans: 2 Number of 3-station scans: 16 Number of 4-station scans: 24 Number of 5-station scans: 105 Total number of scans: 147 Total number of obs: 1244 Total integrated obs-time: 522480 Average obs-time: 420.0 Histogram of observation durations Dur: 420#Obs: Average X-band SNRs by baseline | Hh Ho Ke Ww Yg AVG ---------------------------------- Hh| 58 30 30 27 37 Ho| 33 34 30 39 Ke| 17 15 24 Ww| 15 24 Yg| 22 Average S-band SNRs by baseline | Hh Ho Ke Ww Yg AVG ---------------------------------- Hh| 60 25 26 26 35 Ho| 31 33 33 40 Ke| 14 14 21 Ww| 15 22 Yg| 23