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Stellar Occultation by (347299) 2011 OA28 on 2024-12-25 (18:28:48 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] : cd865f80-ddb5-11f0-547e-f2c83f5d5b0f [observed]

 Occultation Date + Time   : 2024-12-25 at 18:28:48 UT +/- 0.06 min  [1]
 Object Designation        : (347299) 2011 OA28
 Star Designation          : GDR3 2761012308826210816
 Star Coordinates (ICRF)   : RA = 23 22 40.6192, DE = +08 06 08.187  [2]
 Star Magnitudes           : G = 13.07 mag, RP = 12.39 mag, BP = 13.35 mag
 Object Magnitude          : V = 21.27 mag
 Estimated Magnitude Drop  : 8.2 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 18.8 km/s
 Object Mean Diameter      : 6.6 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3083 arcs/min @ PA = 78 deg
 Horizontal Parallax       : 1.7480 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 139° (sunlit = 25%), Sun = 80°
 Cross-track uncertainty   : 16.3 mas = 59 km = 9.01 path-width (1-sig)
 RUWE and duplicate source : 4.51 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL22
 Note                      : FP:true

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


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