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Stellar Occultation by (99851) 2002 OA3 on 2023-05-27 (20:11:31 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] : 9e2cdc70-ddb3-11f0-547e-52fabfff0548 [observed]

 Occultation Date + Time   : 2023-05-27 at 20:11:31 UT +/- 0.0 min  [1]
 Object Designation        : (99851) 2002 OA3
 Star Designation          : GDR3 3559029876806076288
 Star Coordinates (ICRF)   : RA = 11 10 06.7721, DE = -17 30 21.707  [2]
 Star Magnitudes           : G = 11.24 mag, RP = 11.01 mag, BP = 11.37 mag
 Object Magnitude          : V = 19.24 mag
 Estimated Magnitude Drop  : 8.0 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 7.7 km/s
 Object Mean Diameter      : 6.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2400 arcs/min @ PA = 72 deg
 Horizontal Parallax       : 3.3400 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 30° (sunlit = 52%), Sun = 108°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.31 path-width (1-sig)
 RUWE and duplicate source : 1.55 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL48
 Note                      : FP:true

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


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