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Stellar Occultation by (470309) 2007 JK43 on 2023-05-12 (20:28:34 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] : 98f5dea0-ddb3-11f0-547e-e13df7847d6b [observed]

 Occultation Date + Time   : 2023-05-12 at 20:28:34 UT +/- 1.43 min  [1]
 Object Designation        : (470309) 2007 JK43
 Star Designation          : GDR3 4483611506716815232
 Star Coordinates (ICRF)   : RA = 18 25 09.6413, DE = +11 16 59.955  [2]
 Star Magnitudes           : G = 14.93 mag, RP = 14.11 mag, BP = 15.65 mag
 Object Magnitude          : V = 21.56 mag
 Estimated Magnitude Drop  : 6.6 mag
 Estimated Max. Duration   : 5.6 sec
 Speed of the shadow       : 21.2 km/s
 Object Mean Diameter      : 119.5 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.0700 arcs/min @ PA = 314 deg
 Horizontal Parallax       : 0.3510 arcs
 Dynamical Class           : TNO
 Elongation to Moon & Sun  : 60° (sunlit = 47%), Sun = 125°
 Cross-track uncertainty   : 45.7 mas = 830 km = 6.95 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL9
 Note                      : FP:true

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


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