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Stellar Occultation by (1241) Dysona on 2024-10-21 (18:57:06 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] : 8af9a140-ddb5-11f0-547e-d5f5ec5f2473 [observed]

 Occultation Date + Time   : 2024-10-21 at 18:57:06 UT +/- 0.0 min  [1]
 Object Designation        : (1241) Dysona
 Star Designation          : GDR3 6765599374208539776
 Star Coordinates (ICRF)   : RA = 19 25 32.1813, DE = -27 46 59.927  [2]
 Star Magnitudes           : G = 14.02 mag, RP = 13.52 mag, BP = 14.36 mag
 Object Magnitude          : V = 15.32 mag
 Estimated Magnitude Drop  : 1.6 mag
 Estimated Max. Duration   : 3.5 sec
 Speed of the shadow       : 23.7 km/s
 Object Mean Diameter      : 83.0 km  (src: astorb) => apparent = 40 mas
 Apparent Motion           : 0.6800 arcs/min @ PA = 58 deg
 Horizontal Parallax       : 3.0430 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 159° (sunlit = 76%), Sun = 80°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.93 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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