Predictions for Grazing Occultation of ZC 2617, 2006 Oct 27
Grazing Occultation of 2617 cK0 Magnitude 4.6
Date 2006 October 27 (Friday) Nominal site altitude 0m
E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA
o ' " o ' " h m s Alt Alt Az o o o
173 0 0 -37 20 58 8 23 52 38 260 1.29 167.7 168.51 14.45S
173 10 0 -37 15 7 8 24 6 38 260 1.30 167.7 168.48 14.48S
173 20 0 -37 9 15 8 24 20 37 260 1.31 167.7 168.46 14.50S
173 30 0 -37 3 23 8 24 35 37 260 1.32 167.6 168.44 14.51S
173 40 0 -36 57 29 8 24 49 37 260 1.33 167.6 168.42 14.53S
173 50 0 -36 51 35 8 25 3 37 259 1.34 167.6 168.41 14.55S
174 0 0 -36 45 39 8 25 17 37 259 1.35 167.6 168.39 14.57S
174 10 0 -36 39 43 8 25 31 36 259 1.36 167.6 168.37 14.58S
174 20 0 -36 33 46 8 25 45 36 259 1.37 167.6 168.36 14.60S
174 30 0 -36 27 49 8 25 59 36 259 1.38 167.5 168.34 14.62S
174 40 0 -36 21 50 8 26 13 36 258 1.39 167.5 168.32 14.63S
174 50 0 -36 15 51 8 26 27 36 258 1.40 167.5 168.31 14.65S
Path coordinates are referred to WGS84 (as used by GPS).
2617 is double : 5.1 5.9 0.26" 12.0
Graze Path of component #2 0.47km South, and 0.2 secs. later cf. primary.
Librations Long -6.93 Lat +6.30
P +167.6 D +5.0
Illumination of moon 24%+
Elongation of Moon 58
Vertical Profile Scale 2.01 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.72 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
10.6 6.0 7.5 8.3 8.8 9.2 9.5 9.8
12.6 6.0 7.5 8.3 8.9 9.3 9.6 9.8
14.6 6.1 7.6 8.4 8.9 9.3 9.6 9.9
16.6 6.1 7.6 8.4 9.0 9.4 9.7 9.9
18.6 6.2 7.7 8.5 9.0 9.4 9.7 10.0
Lunar Limb Profile for graze north of Auckland
