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Stellar Occultation by (33784) 1999 RE187 on 2026-09-28 (21:50:10 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] : 51479d90-d9b2-11f1-43f3-898cffefb5e0 [observed]

 Occultation Date + Time   : 2026-09-28 at 21:50:10 UT +/- 0.01 min  [1]
 Object Designation        : (33784) 1999 RE187
 Star Designation          : GDR3 2749603776176819328
 Star Coordinates (ICRF)   : RA = 00 37 13.1685, DE = +08 06 12.308  [2]
 Star Magnitudes           : G = 10.5 mag, RP = 9.8 mag, BP = 10.48 mag
 Object Magnitude          : V = 19.06 mag
 Estimated Magnitude Drop  : 8.6 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 15.5 km/s
 Object Mean Diameter      : 5.2 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5150 arcs/min @ PA = 258 deg
 Horizontal Parallax       : 3.5240 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 22° (sunlit = 94%), Sun = 173°
 Cross-track uncertainty   : 1.7 mas = 3 km = 0.59 path-width (1-sig)
 RUWE and duplicate source : 1.18 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL43
 Note                      : FP:true

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


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