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Stellar Occultation by (14685) 1999 XM172 on 2025-10-09 (21:20:04 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] : 8a16db00-ddb8-11f0-547e-46bcbeeb0d97 [observed]

 Occultation Date + Time   : 2025-10-09 at 21:20:04 UT +/- 0.0 min  [1]
 Object Designation        : (14685) 1999 XM172
 Star Designation          : GDR3 0295064910365732864
 Star Coordinates (ICRF)   : RA = 01 28 35.0250, DE = +25 16 13.945  [2]
 Star Magnitudes           : G = 13.9 mag, RP = 13.4 mag, BP = 14.24 mag
 Object Magnitude          : V = 17.81 mag
 Estimated Magnitude Drop  : 3.9 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 12.4 km/s
 Object Mean Diameter      : 7.8 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.4817 arcs/min @ PA = 258 deg
 Horizontal Parallax       : 4.1340 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 27° (sunlit = 89%), Sun = 160°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.14 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL66
 Note                      : FP:true

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


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