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Stellar Occultation by (331303) 2011 EP42 on 2025-11-11 (19:13:38 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] : b34e75f0-ddb8-11f0-547e-2f3735fb8aac [observed]

 Occultation Date + Time   : 2025-11-11 at 19:13:38 UT +/- 0.02 min  [1]
 Object Designation        : (331303) 2011 EP42
 Star Designation          : GDR3 2354880957230512896
 Star Coordinates (ICRF)   : RA = 01 19 23.2397, DE = -18 43 37.125  [2]
 Star Magnitudes           : G = 12.8 mag, RP = 12.18 mag, BP = 13.25 mag
 Object Magnitude          : V = 19.89 mag
 Estimated Magnitude Drop  : 7.1 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 6.7 km/s
 Object Mean Diameter      : 3.1 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2667 arcs/min @ PA = 245 deg
 Horizontal Parallax       : 4.2110 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 122° (sunlit = 55%), Sun = 135°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.34 path-width (1-sig)
 RUWE and duplicate source : 1.03 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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