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Stellar Occultation by (18023) 1999 JQ129 on 2025-04-26 (23:07:15 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] : 83963110-ddb6-11f0-547e-0fe7eded8718 [observed]

 Occultation Date + Time   : 2025-04-26 at 23:07:15 UT +/- 0.0 min  [1]
 Object Designation        : (18023) 1999 JQ129
 Star Designation          : GDR3 4414712392962156288
 Star Coordinates (ICRF)   : RA = 15 17 17.3195, DE = -02 58 12.325  [2]
 Star Magnitudes           : G = 13.06 mag, RP = 12.46 mag, BP = 13.49 mag
 Object Magnitude          : V = 18.46 mag
 Estimated Magnitude Drop  : 5.4 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 13.6 km/s
 Object Mean Diameter      : 5.2 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.5617 arcs/min @ PA = 303 deg
 Horizontal Parallax       : 4.3910 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 152° (sunlit = 1%), Sun = 162°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.11 path-width (1-sig)
 RUWE and duplicate source : 2.35 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#56
 Note                      : FP:true

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


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