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Stellar Occultation by (58211) 1992 HF4 on 2026-08-18 (00:29:16 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] : 0b1098d0-d9ae-11f1-43f3-82e47f7fa229 [observed]

 Occultation Date + Time   : 2026-08-18 at 00:29:16 UT +/- 0.02 min  [1]
 Object Designation        : (58211) 1992 HF4
 Star Designation          : GDR3 4256027443186663424
 Star Coordinates (ICRF)   : RA = 18 33 25.1938, DE = -06 18 06.978  [2]
 Star Magnitudes           : G = 12.33 mag, RP = 10.97 mag, BP = 14.61 mag
 Object Magnitude          : V = 17.13 mag
 Estimated Magnitude Drop  : 4.8 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 4.8 km/s
 Object Mean Diameter      : 3.7 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.4133 arcs/min @ PA = 139 deg
 Horizontal Parallax       : 9.2380 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 70° (sunlit = 30%), Sun = 131°
 Cross-track uncertainty   : 1.1 mas = 0 km = 0.21 path-width (1-sig)
 RUWE and duplicate source : 1.16 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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