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Stellar Occultation by (19693) 1999 RU230 on 2023-06-19 (21:17:05 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] : b805d5c0-ddb3-11f0-547e-0b1abfdfb83c [observed]

 Occultation Date + Time   : 2023-06-19 at 21:17:05 UT +/- 0.0 min  [1]
 Object Designation        : (19693) 1999 RU230
 Star Designation          : GDR3 3902090664452373888
 Star Coordinates (ICRF)   : RA = 12 20 09.7461, DE = +07 56 07.587  [2]
 Star Magnitudes           : G = 12.57 mag, RP = 11.98 mag, BP = 12.99 mag
 Object Magnitude          : V = 18.8 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 14.0 km/s
 Object Mean Diameter      : 9.2 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.3800 arcs/min @ PA = 139 deg
 Horizontal Parallax       : 2.8830 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 73° (sunlit = 3%), Sun = 93°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL69
 Note                      : FP:true

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


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