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Stellar Occultation by (256) Walpurga on 2024-08-11 (01:17:26 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : 4c2900a0-ddb5-11f0-547e-cf997fd2cd08 [observed]

 Occultation Date + Time   : 2024-08-11 at 01:17:26 UT +/- 0.0 min  [1]
 Object Designation        : (256) Walpurga
 Star Designation          : GDR3 3296126819720545280
 Star Coordinates (ICRF)   : RA = 04 53 12.4792, DE = +12 36 05.000  [2]
 Star Magnitudes           : G = 13.65 mag, RP = 12.9 mag, BP = 14.27 mag
 Object Magnitude          : V = 16.05 mag
 Estimated Magnitude Drop  : 2.5 mag
 Estimated Max. Duration   : 2.3 sec
 Speed of the shadow       : 28.2 km/s
 Object Mean Diameter      : 63.3 km  (src: astorb) => apparent = 25 mas
 Apparent Motion           : 0.6700 arcs/min @ PA = 96 deg
 Horizontal Parallax       : 2.5270 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 136° (sunlit = 35%), Sun = 66°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#81
 Note                      : FP:true

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


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