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Stellar Occultation by (19644) 1999 RD102 on 2025-09-14 (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] : 6e5bd0b0-ddb7-11f0-547e-63b6c7e6ca60 [observed]

 Occultation Date + Time   : 2025-09-14 at 21:29:20 UT +/- 0.03 min  [1]
 Object Designation        : (19644) 1999 RD102
 Star Designation          : GDR3 4194950740477298560
 Star Coordinates (ICRF)   : RA = 19 37 12.4304, DE = -08 03 24.579  [2]
 Star Magnitudes           : G = 8.16 mag, RP = 7.35 mag, BP = 8.86 mag
 Object Magnitude          : V = 17.45 mag
 Estimated Magnitude Drop  : 9.3 mag
 Estimated Max. Duration   : 2.3 sec
 Speed of the shadow       : 4.1 km/s
 Object Mean Diameter      : 9.3 km  (src: astorb) => apparent = 6 mas
 Apparent Motion           : 0.1667 arcs/min @ PA = 128 deg
 Horizontal Parallax       : 4.3570 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 148° (sunlit = 45%), Sun = 121°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.20 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#70
 Note                      : FP:true

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


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