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Stellar Occultation by (206) Hersilia on 2026-02-15 (20:33:21 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] : dd07aca0-de6b-11f0-4858-a630fdff4a09 [asteroids]

 Occultation Date + Time   : 2026-02-15 at 20:33:21 UT +/- 0.07 min  [1]
 Object Designation        : (206) Hersilia
 Star Designation          : GDR3 3372623825098945024
 Star Coordinates (ICRF)   : RA = 06 27 25.5277, DE = +20 30 47.308  [2]
 Star Magnitudes           : G = 13.87 mag, RP = 12.88 mag, BP = 14.87 mag
 Object Magnitude          : V = 13.32 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 22.9 sec
 Speed of the shadow       : 2.5 km/s
 Object Mean Diameter      : 56.2 km  (src: astorb) => apparent = 41 mas
 Apparent Motion           : 0.1067 arcs/min @ PA = 323 deg
 Horizontal Parallax       : 4.6300 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 148° (sunlit = 3%), Sun = 129°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 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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