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Stellar Occultation by (284471) 2007 HP21 on 2024-12-27 (05:26:35 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] : d0fdabf0-ddb5-11f0-547e-db27fffb75b4 [observed]

 Occultation Date + Time   : 2024-12-27 at 05:26:35 UT +/- 0.14 min  [1]
 Object Designation        : (284471) 2007 HP21
 Star Designation          : GDR3 3811456512225482368
 Star Coordinates (ICRF)   : RA = 11 06 53.7493, DE = +01 57 16.888  [2]
 Star Magnitudes           : G = 9.5 mag, RP = 14.44 mag, BP = 15.35 mag
 Object Magnitude          : V = 21.77 mag
 Estimated Magnitude Drop  : 12.3 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 5.3 km/s
 Object Mean Diameter      : 2.0 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.1617 arcs/min @ PA = 120 deg
 Horizontal Parallax       : 3.2300 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 65° (sunlit = 14%), Sun = 109°
 Cross-track uncertainty   : 15.0 mas = 29 km = 14.81 path-width (1-sig)
 RUWE and duplicate source : 2.55 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#32
 Note                      : FP:true

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


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