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Stellar Occultation by (295336) 2008 HY8 on 2025-10-06 (22:21:04 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] : 87ce4a90-ddb8-11f0-547e-8f4b57bca159 [observed]

 Occultation Date + Time   : 2025-10-06 at 22:21:04 UT +/- 0.08 min  [1]
 Object Designation        : (295336) 2008 HY8
 Star Designation          : GDR3 2501909507522252032
 Star Coordinates (ICRF)   : RA = 02 39 22.1598, DE = +00 50 33.332  [2]
 Star Magnitudes           : G = 9.74 mag, RP = 9.22 mag, BP = 10.09 mag
 Object Magnitude          : V = 20.34 mag
 Estimated Magnitude Drop  : 10.6 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 15.8 km/s
 Object Mean Diameter      : 7.9 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3050 arcs/min @ PA = 230 deg
 Horizontal Parallax       : 2.0590 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 31° (sunlit = 100%), Sun = 153°
 Cross-track uncertainty   : 1.7 mas = 5 km = 0.67 path-width (1-sig)
 RUWE and duplicate source : 1.11 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#33
 Note                      : FP:true

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


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