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Stellar Occultation by (12712) 1991 EY3 on 2026-09-18 (18:17:12 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] : c5a878a0-d9b0-11f1-43f3-c0a7ff4e9a11 [observed]

 Occultation Date + Time   : 2026-09-18 at 18:17:12 UT +/- 0.0 min  [1]
 Object Designation        : (12712) 1991 EY3
 Star Designation          : GDR3 4076870269834703104
 Star Coordinates (ICRF)   : RA = 18 39 04.2898, DE = -23 34 50.320  [2]
 Star Magnitudes           : G = 13.34 mag, RP = 12.19 mag, BP = 14.73 mag
 Object Magnitude          : V = 19.18 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 10.7 km/s
 Object Mean Diameter      : 5.6 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3600 arcs/min @ PA = 83 deg
 Horizontal Parallax       : 3.5640 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 15° (sunlit = 49%), Sun = 103°
 Cross-track uncertainty   : 0.2 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL54
 Note                      : FP:true

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


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