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Stellar Occultation by (18519) 1996 VH4 on 2023-12-17 (01:08:57 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] : 476c3150-ddb4-11f0-547e-c2d5ffefc02d [observed]

 Occultation Date + Time   : 2023-12-17 at 01:08:57 UT +/- 0.01 min  [1]
 Object Designation        : (18519) 1996 VH4
 Star Designation          : GDR3 3989724971001228416
 Star Coordinates (ICRF)   : RA = 10 51 10.0551, DE = +22 48 23.282  [2]
 Star Magnitudes           : G = 10.85 mag, RP = 10.38 mag, BP = 11.13 mag
 Object Magnitude          : V = 18.06 mag
 Estimated Magnitude Drop  : 7.2 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 11.9 km/s
 Object Mean Diameter      : 6.4 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.5150 arcs/min @ PA = 72 deg
 Horizontal Parallax       : 4.5950 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 161° (sunlit = 20%), Sun = 109°
 Cross-track uncertainty   : 5.8 mas = 8 km = 1.26 path-width (1-sig)
 RUWE and duplicate source : 54.33 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#50
 Note                      : FP:true

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


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