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Stellar Occultation by (86159) 1999 RB204 on 2026-07-12 (21:54:02 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] : 4059a300-d9aa-11f1-43f3-87f82bfb733e [observed]

 Occultation Date + Time   : 2026-07-12 at 21:54:02 UT +/- 0.02 min  [1]
 Object Designation        : (86159) 1999 RB204
 Star Designation          : GDR3 6767181674519665536
 Star Coordinates (ICRF)   : RA = 19 40 13.2048, DE = -25 03 56.986  [2]
 Star Magnitudes           : G = 10.55 mag, RP = 9.79 mag, BP = 11.17 mag
 Object Magnitude          : V = 18.88 mag
 Estimated Magnitude Drop  : 8.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.8 km/s
 Object Mean Diameter      : 4.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5067 arcs/min @ PA = 273 deg
 Horizontal Parallax       : 4.1990 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 157° (sunlit = 3%), Sun = 176°
 Cross-track uncertainty   : 4.3 mas = 6 km = 1.59 path-width (1-sig)
 RUWE and duplicate source : 1.81 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL39
 Note                      : FP:true

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


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