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Stellar Occultation by (31762) 1999 JB104 on 2024-12-30 (19:46:46 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] : db631c10-ddb5-11f0-547e-3f6e6e6b736e [observed]

 Occultation Date + Time   : 2024-12-30 at 19:46:46 UT +/- 0.0 min  [1]
 Object Designation        : (31762) 1999 JB104
 Star Designation          : GDR3 3431798445691855104
 Star Coordinates (ICRF)   : RA = 06 23 42.9397, DE = +25 15 22.171  [2]
 Star Magnitudes           : G = 13.12 mag, RP = 12.6 mag, BP = 13.46 mag
 Object Magnitude          : V = 16.52 mag
 Estimated Magnitude Drop  : 3.4 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 14.0 km/s
 Object Mean Diameter      : 9.9 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.6217 arcs/min @ PA = 296 deg
 Horizontal Parallax       : 4.7240 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 176° (sunlit = 0%), Sun = 175°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL62
 Note                      : FP:true

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


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