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Stellar Occultation by (206) Hersilia on 2026-01-12 (20:32:14 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] : dd3ffab0-de6b-11f0-4858-b88157bb3844 [asteroids]

 Occultation Date + Time   : 2026-01-12 at 20:32:14 UT +/- 0.01 min  [1]
 Object Designation        : (206) Hersilia
 Star Designation          : GDR3 3365619562371972608
 Star Coordinates (ICRF)   : RA = 06 46 42.2012, DE = +19 09 39.031  [2]
 Star Magnitudes           : G = 13.05 mag, RP = 12.3 mag, BP = 13.68 mag
 Object Magnitude          : V = 12.52 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 5.0 sec
 Speed of the shadow       : 11.1 km/s
 Object Mean Diameter      : 56.2 km  (src: astorb) => apparent = 47 mas
 Apparent Motion           : 0.5533 arcs/min @ PA = 281 deg
 Horizontal Parallax       : 5.2820 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 125° (sunlit = 30%), Sun = 168°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#139
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

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


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