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Stellar Occultation by (44519) 1998 XY91 on 2024-09-21 (18:31:23 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] : 70bd5240-ddb5-11f0-547e-e01097f5689a [observed]

 Occultation Date + Time   : 2024-09-21 at 18:31:23 UT +/- 0.01 min  [1]
 Object Designation        : (44519) 1998 XY91
 Star Designation          : GDR3 4207884536282496896
 Star Coordinates (ICRF)   : RA = 19 22 29.0231, DE = -06 57 01.968  [2]
 Star Magnitudes           : G = 11.24 mag, RP = 10.93 mag, BP = 11.41 mag
 Object Magnitude          : V = 19.73 mag
 Estimated Magnitude Drop  : 8.5 mag
 Estimated Max. Duration   : 1.5 sec
 Speed of the shadow       : 4.2 km/s
 Object Mean Diameter      : 6.2 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.1150 arcs/min @ PA = 136 deg
 Horizontal Parallax       : 2.8970 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 117° (sunlit = 81%), Sun = 111°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.11 path-width (1-sig)
 RUWE and duplicate source : 0.76 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#57
 Note                      : FP:true

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


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