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Stellar Occultation by (482087) 2010 HP21 on 2026-09-06 (01:20:33 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] : 88122230-d9af-11f1-43f3-3fb5ceff8d13 [observed]

 Occultation Date + Time   : 2026-09-06 at 01:20:33 UT +/- 0.14 min  [1]
 Object Designation        : (482087) 2010 HP21
 Star Designation          : GDR3 0192596920650882432
 Star Coordinates (ICRF)   : RA = 05 44 09.1198, DE = +41 16 19.001  [2]
 Star Magnitudes           : G = 13.71 mag, RP = 13.39 mag, BP = 13.9 mag
 Object Magnitude          : V = 21.68 mag
 Estimated Magnitude Drop  : 8.0 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 17.9 km/s
 Object Mean Diameter      : 6.4 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2667 arcs/min @ PA = 78 deg
 Horizontal Parallax       : 1.5880 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 17° (sunlit = 31%), Sun = 77°
 Cross-track uncertainty   : 31.3 mas = 125 km = 19.64 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL27
 Note                      : FP:true

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


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