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Stellar Occultation by (24470) 2000 SJ310 on 2025-12-12 (16:33:23 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] : d86da270-ddb8-11f0-547e-5790abe73759 [observed]

 Occultation Date + Time   : 2025-12-12 at 16:33:23 UT +/- 0.04 min  [1]
 Object Designation        : (24470) 2000 SJ310
 Star Designation          : GDR3 0163908291460549632
 Star Coordinates (ICRF)   : RA = 04 05 30.5318, DE = +27 55 10.557  [2]
 Star Magnitudes           : G = 12.6 mag, RP = 12.16 mag, BP = 12.89 mag
 Object Magnitude          : V = 18.09 mag
 Estimated Magnitude Drop  : 5.5 mag
 Estimated Max. Duration   : 1.2 sec
 Speed of the shadow       : 18.2 km/s
 Object Mean Diameter      : 21.8 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.3483 arcs/min @ PA = 239 deg
 Horizontal Parallax       : 2.0380 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 115° (sunlit = 42%), Sun = 162°
 Cross-track uncertainty   : 2.3 mas = 7 km = 0.33 path-width (1-sig)
 RUWE and duplicate source : 1.45 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL57
 Note                      : FP:true

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


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