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Stellar Occultation by (59973) 1999 RY252 on 2023-08-10 (21:29:20 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] : e9026c60-ddb3-11f0-547e-3da3f7fb637b [observed]

 Occultation Date + Time   : 2023-08-10 at 21:29:20 UT +/- 0.01 min  [1]
 Object Designation        : (59973) 1999 RY252
 Star Designation          : GDR3 4195221323418663936
 Star Coordinates (ICRF)   : RA = 19 53 31.3026, DE = -08 40 25.826  [2]
 Star Magnitudes           : G = 14.0 mag, RP = 13.23 mag, BP = 14.64 mag
 Object Magnitude          : V = 19.49 mag
 Estimated Magnitude Drop  : 5.5 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 13.3 km/s
 Object Mean Diameter      : 5.6 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3933 arcs/min @ PA = 255 deg
 Horizontal Parallax       : 3.1370 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 136° (sunlit = 26%), Sun = 157°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.36 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#44
 Note                      : FP:true

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


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