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Stellar Occultation by (13399) 1999 RJ88 on 2025-08-22 (22:17:02 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] : 4f432700-ddb7-11f0-547e-559cfd9d549d [observed]

 Occultation Date + Time   : 2025-08-22 at 22:17:02 UT +/- 0.01 min  [1]
 Object Designation        : (13399) 1999 RJ88
 Star Designation          : GDR3 2670337509028220672
 Star Coordinates (ICRF)   : RA = 21 58 13.4614, DE = -03 18 49.901  [2]
 Star Magnitudes           : G = 9.79 mag, RP = 9.31 mag, BP = 10.1 mag
 Object Magnitude          : V = 16.41 mag
 Estimated Magnitude Drop  : 6.6 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 11.1 km/s
 Object Mean Diameter      : 9.8 km  (src: astorb) => apparent = 8 mas
 Apparent Motion           : 0.5333 arcs/min @ PA = 235 deg
 Horizontal Parallax       : 5.0920 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 169° (sunlit = 0%), Sun = 171°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60
 Note                      : FP:true

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


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