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Stellar Occultation by (99984) 1981 EL23 on 2026-07-27 (22:30:53 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] : a03b9390-d9ab-11f1-43f3-168352f67b68 [observed]

 Occultation Date + Time   : 2026-07-27 at 22:30:53 UT +/- 0.01 min  [1]
 Object Designation        : (99984) 1981 EL23
 Star Designation          : GDR3 4095483077501958272
 Star Coordinates (ICRF)   : RA = 18 10 20.8434, DE = -19 11 33.466  [2]
 Star Magnitudes           : G = 15.65 mag, RP = 14.52 mag, BP = 16.3 mag
 Object Magnitude          : V = 19.9 mag
 Estimated Magnitude Drop  : 4.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 8.6 km/s
 Object Mean Diameter      : 2.6 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3767 arcs/min @ PA = 259 deg
 Horizontal Parallax       : 4.6850 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 16° (sunlit = 97%), Sun = 147°
 Cross-track uncertainty   : 1.1 mas = 1 km = 0.58 path-width (1-sig)
 RUWE and duplicate source : 1.27 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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