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Stellar Occultation by (256) Walpurga on 2017-07-16 (00:25:23 UT)



Event Details
 Occultation UUID [and db] : 5b0399df-16ca-4cc5-aeb8-935e67aa5434 [observed]

 Occultation Date + Time   : 2017-07-16 at 00:25:23 UT +/- 0.0 min  [1]
 Object Designation        : (256) Walpurga
 Star Designation          : GDR3 4213877939801497344
 Star Coordinates (ICRF)   : RA = 19 39 38.3700, DE = -02 21 11.888  [2]
 Star Magnitudes           : G = 14.4 mag, RP = 13.78 mag, BP = 14.83 mag
 Object Magnitude          : V = 14.21 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 5.4 sec
 Object Mean Diameter      : 63 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 11.7 km/s
 Elongation to Moon & Sun  : 79° (sunlit = 59%), Sun = 161°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#65

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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