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Stellar Occultation by (18402) 1992 YU2 on 2024-08-21 (21:10:45 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] : 448e4940-ddb5-11f0-547e-4934fdafe8ed [observed]

 Occultation Date + Time   : 2024-08-21 at 21:10:45 UT +/- 0.01 min  [1]
 Object Designation        : (18402) 1992 YU2
 Star Designation          : GDR3 4086935469786271360
 Star Coordinates (ICRF)   : RA = 18 57 05.1846, DE = -17 32 22.325  [2]
 Star Magnitudes           : G = 11.8 mag, RP = 10.87 mag, BP = 12.71 mag
 Object Magnitude          : V = 19.31 mag
 Estimated Magnitude Drop  : 7.5 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 6.1 km/s
 Object Mean Diameter      : 4.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2400 arcs/min @ PA = 254 deg
 Horizontal Parallax       : 4.2020 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 75° (sunlit = 94%), Sun = 134°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.26 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#59
 Note                      : FP:true

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


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