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Stellar Occultation by (16844) 1997 XY3 on 2024-09-02 (00:31:34 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] : a62cfa70-ddb5-11f0-547e-ead07cdfd7c6 [observed]

 Occultation Date + Time   : 2024-09-02 at 00:31:34 UT +/- 0.0 min  [1]
 Object Designation        : (16844) 1997 XY3
 Star Designation          : GDR3 3395276925727934464
 Star Coordinates (ICRF)   : RA = 05 14 36.7882, DE = +17 51 54.376  [2]
 Star Magnitudes           : G = 14.42 mag, RP = 13.75 mag, BP = 14.93 mag
 Object Magnitude          : V = 19.21 mag
 Estimated Magnitude Drop  : 4.8 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 21.6 km/s
 Object Mean Diameter      : 5.9 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.6600 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 3.2490 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 70° (sunlit = 1%), Sun = 81°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#55
 Note                      : FP:true

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


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