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Stellar Occultation by (3307) Athabasca on 2026-09-27 (18:07:51 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] : 0509cb10-d9b2-11f1-43f3-de78f56fb379 [observed]

 Occultation Date + Time   : 2026-09-27 at 18:07:51 UT +/- 0.0 min  [1]
 Object Designation        : (3307) Athabasca
 Star Designation          : GDR3 4087003953067816448
 Star Coordinates (ICRF)   : RA = 18 55 10.2697, DE = -17 17 16.261  [2]
 Star Magnitudes           : G = 12.55 mag, RP = 12.15 mag, BP = 12.8 mag
 Object Magnitude          : V = 18.34 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 12.6 km/s
 Object Mean Diameter      : 13.5 km  (src: astorb) => apparent = 10 mas
 Apparent Motion           : 0.5483 arcs/min @ PA = 87 deg
 Horizontal Parallax       : 4.6410 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 94° (sunlit = 99%), Sun = 99°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL62
 Note                      : FP:true

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


More Data and Informations
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