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Stellar Occultation by (58211) 1992 HF4 on 2026-08-31 (21:34:29 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] : 38badab0-d9af-11f1-43f3-202c359f8cae [observed]

 Occultation Date + Time   : 2026-08-31 at 21:34:29 UT +/- 0.01 min  [1]
 Object Designation        : (58211) 1992 HF4
 Star Designation          : GDR3 4251800984890332416
 Star Coordinates (ICRF)   : RA = 18 42 53.6453, DE = -08 01 05.051  [2]
 Star Magnitudes           : G = 13.67 mag, RP = 12.26 mag, BP = 15.5 mag
 Object Magnitude          : V = 17.45 mag
 Estimated Magnitude Drop  : 3.8 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 8.1 km/s
 Object Mean Diameter      : 3.7 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.6383 arcs/min @ PA = 118 deg
 Horizontal Parallax       : 8.3430 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 101° (sunlit = 85%), Sun = 121°
 Cross-track uncertainty   : 1.2 mas = 0 km = 0.25 path-width (1-sig)
 RUWE and duplicate source : 1.79 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL53
 Note                      : FP:true

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


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