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Stellar Occultation by (19615) 1999 OB3 on 2025-11-12 (01:52:20 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] : b4098890-ddb8-11f0-547e-d8d2fcea2309 [observed]

 Occultation Date + Time   : 2025-11-12 at 01:52:20 UT +/- 0.0 min  [1]
 Object Designation        : (19615) 1999 OB3
 Star Designation          : GDR3 0114446245485820928
 Star Coordinates (ICRF)   : RA = 02 51 30.6314, DE = +25 38 44.452  [2]
 Star Magnitudes           : G = 13.22 mag, RP = 12.66 mag, BP = 13.59 mag
 Object Magnitude          : V = 16.23 mag
 Estimated Magnitude Drop  : 3.1 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 12.8 km/s
 Object Mean Diameter      : 11.8 km  (src: astorb) => apparent = 9 mas
 Apparent Motion           : 0.5717 arcs/min @ PA = 236 deg
 Horizontal Parallax       : 4.7500 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 90° (sunlit = 52%), Sun = 171°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL72
 Note                      : FP:true

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


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