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Stellar Occultation by (23948) 1998 UQ18 on 2024-11-29 (23:38:55 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] : aedf3c50-ddb5-11f0-547e-90cdb77de4f4 [observed]

 Occultation Date + Time   : 2024-11-29 at 23:38:55 UT +/- 0.0 min  [1]
 Object Designation        : (23948) 1998 UQ18
 Star Designation          : GDR3 0149701604796748928
 Star Coordinates (ICRF)   : RA = 04 23 01.7810, DE = +25 21 57.767  [2]
 Star Magnitudes           : G = 13.38 mag, RP = 12.67 mag, BP = 13.94 mag
 Object Magnitude          : V = 17.24 mag
 Estimated Magnitude Drop  : 3.9 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 14.5 km/s
 Object Mean Diameter      : 9.0 km  (src: astorb) => apparent = 6 mas
 Apparent Motion           : 0.5517 arcs/min @ PA = 273 deg
 Horizontal Parallax       : 4.0570 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 166° (sunlit = 2%), Sun = 176°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.12 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#59
 Note                      : FP:true

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


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