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Stellar Occultation by (284986) 2010 HT23 on 2024-12-31 (22:16:21 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] : df74d3c0-ddb5-11f0-547e-19b97afc9ac8 [observed]

 Occultation Date + Time   : 2024-12-31 at 22:16:21 UT +/- 0.03 min  [1]
 Object Designation        : (284986) 2010 HT23
 Star Designation          : GDR3 3308936095824923008
 Star Coordinates (ICRF)   : RA = 04 47 51.2716, DE = +15 08 41.741  [2]
 Star Magnitudes           : G = 11.55 mag, RP = 10.92 mag, BP = 12.02 mag
 Object Magnitude          : V = 20.43 mag
 Estimated Magnitude Drop  : 8.9 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.8 km/s
 Object Mean Diameter      : 3.2 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4167 arcs/min @ PA = 286 deg
 Horizontal Parallax       : 3.4650 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 138° (sunlit = 1%), Sun = 151°
 Cross-track uncertainty   : 4.3 mas = 7 km = 2.47 path-width (1-sig)
 RUWE and duplicate source : 3.58 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL30
 Note                      : FP:true

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


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