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Stellar Occultation by (256) Walpurga on 2017-08-12 (22:19:05 UT)



Event Details
 Occultation UUID [and db] : dcea6302-fff4-49dc-b5c4-107877f6ef4c [observed]

 Occultation Date + Time   : 2017-08-12 at 22:19:05 UT +/- 0.0 min  [1]
 Object Designation        : (256) Walpurga
 Star Designation          : GDR3 4211792917852535168
 Star Coordinates (ICRF)   : RA = 19 20 58.6677, DE = -04 46 15.162  [2]
 Star Magnitudes           : G = 12.35 mag, RP = 11.77 mag, BP = 12.75 mag
 Object Magnitude          : V = 14.5 mag
 Estimated Magnitude Drop  : 2.3 mag
 Estimated Max. Duration   : 6.5 sec
 Object Mean Diameter      : 63 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 9.7 km/s
 Elongation to Moon & Sun  : 93° (sunlit = 73%), Sun = 146°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.04 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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