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Stellar Occultation by (1194) Aletta on 2026-08-27 (21:45:34 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] : aed7ef40-d9ae-11f1-43f3-20757e2a0c1d [observed]

 Occultation Date + Time   : 2026-08-27 at 21:45:34 UT +/- 0.05 min  [1]
 Object Designation        : (1194) Aletta
 Star Designation          : GDR3 4089698783016168192
 Star Coordinates (ICRF)   : RA = 18 22 18.5193, DE = -23 03 43.776  [2]
 Star Magnitudes           : G = 15.03 mag, RP = 13.96 mag, BP = 16.04 mag
 Object Magnitude          : V = 15.79 mag
 Estimated Magnitude Drop  : 1.2 mag
 Estimated Max. Duration   : 16.2 sec
 Speed of the shadow       : 3.4 km/s
 Object Mean Diameter      : 55.4 km  (src: astorb) => apparent = 32 mas
 Apparent Motion           : 0.1200 arcs/min @ PA = 24 deg
 Horizontal Parallax       : 3.7380 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 56° (sunlit = 100%), Sun = 120°
 Cross-track uncertainty   : 0.9 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 2.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL74
 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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