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Stellar Occultation by (66076) 1998 RD53 on 2025-10-27 (02:01:41 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] : a4d8adb0-ddb8-11f0-547e-6723d7ed4d0f [observed]

 Occultation Date + Time   : 2025-10-27 at 02:01:41 UT +/- 0.02 min  [1]
 Object Designation        : (66076) 1998 RD53
 Star Designation          : GDR3 0939455239084657408
 Star Coordinates (ICRF)   : RA = 06 55 49.7738, DE = +34 47 34.702  [2]
 Star Magnitudes           : G = 12.4 mag, RP = 11.69 mag, BP = 12.92 mag
 Object Magnitude          : V = 18.59 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 1.0 sec
 Speed of the shadow       : 7.3 km/s
 Object Mean Diameter      : 7.0 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.2550 arcs/min @ PA = 55 deg
 Horizontal Parallax       : 3.7120 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 170° (sunlit = 26%), Sun = 112°
 Cross-track uncertainty   : 3.1 mas = 5 km = 0.76 path-width (1-sig)
 RUWE and duplicate source : 31.27 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL61
 Note                      : FP:true

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


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