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Stellar Occultation by (19933) 1981 EW5 on 2023-06-24 (21:36:18 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] : bcdadd70-ddb3-11f0-547e-bfdefeff738d [observed]

 Occultation Date + Time   : 2023-06-24 at 21:36:18 UT +/- 0.0 min  [1]
 Object Designation        : (19933) 1981 EW5
 Star Designation          : GDR3 4253933350259319808
 Star Coordinates (ICRF)   : RA = 18 53 21.3489, DE = -06 27 25.523  [2]
 Star Magnitudes           : G = 8.86 mag, RP = 8.17 mag, BP = 9.4 mag
 Object Magnitude          : V = 18.11 mag
 Estimated Magnitude Drop  : 9.2 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 12.4 km/s
 Object Mean Diameter      : 5.3 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.5667 arcs/min @ PA = 281 deg
 Horizontal Parallax       : 4.8670 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 114° (sunlit = 36%), Sun = 161°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 0.9 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#51
 Note                      : FP:true

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


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