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Stellar Occultation by (23029) 1999 XF4 on 2025-12-16 (19:47:19 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] : dcc515b0-ddb8-11f0-547e-d24cc7ff39ed [observed]

 Occultation Date + Time   : 2025-12-16 at 19:47:19 UT +/- 0.01 min  [1]
 Object Designation        : (23029) 1999 XF4
 Star Designation          : GDR3 3423305783519892608
 Star Coordinates (ICRF)   : RA = 06 05 36.6631, DE = +20 58 03.999  [2]
 Star Magnitudes           : G = 11.57 mag, RP = 11.3 mag, BP = 11.72 mag
 Object Magnitude          : V = 18.53 mag
 Estimated Magnitude Drop  : 7.0 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 11.6 km/s
 Object Mean Diameter      : 3.8 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5367 arcs/min @ PA = 270 deg
 Horizontal Parallax       : 4.9410 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 138° (sunlit = 9%), Sun = 173°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.24 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#53
 Note                      : FP:true

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


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