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Stellar Occultation by (3784) Chopin on 2023-05-24 (23:17:33 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] : a7c0cbc0-ddb3-11f0-547e-b27077f702fd [observed]

 Occultation Date + Time   : 2023-05-24 at 23:17:33 UT +/- 0.0 min  [1]
 Object Designation        : (3784) Chopin
 Star Designation          : GDR3 4344198036511310080
 Star Coordinates (ICRF)   : RA = 16 19 16.4363, DE = -10 16 46.139  [2]
 Star Magnitudes           : G = 11.47 mag, RP = 10.56 mag, BP = 12.34 mag
 Object Magnitude          : V = 15.27 mag
 Estimated Magnitude Drop  : 3.8 mag
 Estimated Max. Duration   : 2.5 sec
 Speed of the shadow       : 11.3 km/s
 Object Mean Diameter      : 28.5 km  (src: astorb) => apparent = 23 mas
 Apparent Motion           : 0.5400 arcs/min @ PA = 262 deg
 Horizontal Parallax       : 5.0960 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 119° (sunlit = 26%), Sun = 169°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.36 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#75
 Note                      : FP:true

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


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