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Stellar Occultation by (104253) 2000 EK138 on 2025-09-02 (01:49:45 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] : 5bd8e4a0-ddb7-11f0-547e-ebb1febfdbfc [observed]

 Occultation Date + Time   : 2025-09-02 at 01:49:45 UT +/- 0.04 min  [1]
 Object Designation        : (104253) 2000 EK138
 Star Designation          : GDR3 2639978824754457728
 Star Coordinates (ICRF)   : RA = 23 39 40.4526, DE = -02 37 32.496  [2]
 Star Magnitudes           : G = 10.6 mag, RP = 10.16 mag, BP = 10.88 mag
 Object Magnitude          : V = 19.57 mag
 Estimated Magnitude Drop  : 9.0 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 2.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5117 arcs/min @ PA = 256 deg
 Horizontal Parallax       : 5.1640 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 84° (sunlit = 67%), Sun = 166°
 Cross-track uncertainty   : 18.0 mas = 22 km = 9.67 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#33
 Note                      : FP:true

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


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