CRDS-88 (Southern Hemisphere Astrometry) 2017 May 17 (DOY 137) Notes prepared by Alan Fey, U.S. Naval Observatory Schedule name: crds88.skd Nominal Start: 18:00 U.T. on 2017 May 17 (DOY 137) first observation at 18:00 U.T. on 1659-621 Hh-Hb-Ho-Ke-Ww Duration: 24 hours Nominal Stop: 18:00 U.T. on 2017 May 18 (DOY 138) last observation at 17:58 U.T. on 1633-810 Hh-Hb-Ho-Ke-Ww Correlator: Station Codes # of tapes # of obs Occupation Code HARTRAO J 160 HOBART12 160 HOBART26 156 KATH12M 132 WARK12M 126 Total number of observations (delay measurements): 1362 Total number of scans in the schedule: 160 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) = 8.5 Min = 1.6 Max = 30.3 (Baseline Hh-Ww on 1313-333) RMS = 5.3 Total time: 1445 minutes ( 24.1 hours). Key: Hh=HARTRAO Hb=HOBART12 Ho=HOBART26 Ke=KATH12M Ww=WARK12M Hh Hb Ho Ke Ww Avg % obs. time: 66 66 65 55 52 61 % cal. time: 2 2 2 2 1 2 % slew time: 30 3 15 2 2 11 % idle time: 1 27 17 40 43 26 total # scans: 160 160 156 132 126 146 # scans/hour : 7 7 6 5 5 6 Avg scan (sec): 360 360 360 360 360 360 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total TB(M5): 1.8 1.8 1.8 1.5 1.5 1.7 # OF OBSERVATIONS BY BASELINE | Hh Hb Ho Ke Ww Total ----------------------------------- Hh| 160 156 132 126 574 Hb| 156 132 126 574 Ho| 132 126 570 Ke| 116 512 Ww| 494 Number of 2-station scans: 4 Number of 3-station scans: 14 Number of 4-station scans: 26 Number of 5-station scans: 116 Total number of scans: 160 Total number of obs: 1362 Total integrated obs-time: 490320 Average obs-time: 360.0 Histogram of observation durations Dur: 360#Obs: Average X-band SNRs by baseline | Hh Hb Ho Ke Ww AVG ---------------------------------- Hh| 29 54 28 28 35 Hb| 32 16 17 24 Ho| 30 31 37 Ke| 16 23 Ww| 23 Average S-band SNRs by baseline | Hh Hb Ho Ke Ww AVG ---------------------------------- Hh| 22 55 23 24 32 Hb| 28 11 12 19 Ho| 29 31 36 Ke| 13 19 Ww| 20