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Stellar Occultation by (3731) Hancock on 2026-07-18 (20:08:46 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] : f6f7d1e0-d9aa-11f1-43f3-975937bf44a5 [observed]

 Occultation Date + Time   : 2026-07-18 at 20:08:46 UT +/- 0.02 min  [1]
 Object Designation        : (3731) Hancock
 Star Designation          : GDR3 6238963644152028032
 Star Coordinates (ICRF)   : RA = 15 23 54.4603, DE = -24 54 37.639  [2]
 Star Magnitudes           : G = 12.86 mag, RP = 12.04 mag, BP = 13.52 mag
 Object Magnitude          : V = 16.21 mag
 Estimated Magnitude Drop  : 3.4 mag
 Estimated Max. Duration   : 5.9 sec
 Speed of the shadow       : 8.4 km/s
 Object Mean Diameter      : 49.3 km  (src: astorb) => apparent = 26 mas
 Apparent Motion           : 0.2717 arcs/min @ PA = 25 deg
 Horizontal Parallax       : 3.4260 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 60° (sunlit = 24%), Sun = 119°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.27 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL64
 Note                      : FP:true

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


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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