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Stellar Occultation by (209) Dido on 2025-11-25 (20:40:49 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] : cda1a850-ddb8-11f0-547e-d89093e647f9 [observed]

 Occultation Date + Time   : 2025-11-25 at 20:40:49 UT +/- 0.01 min  [1]
 Object Designation        : (209) Dido
 Star Designation          : GDR3 3454287444211696512
 Star Coordinates (ICRF)   : RA = 05 48 50.0664, DE = +33 11 28.726  [2]
 Star Magnitudes           : G = 14.87 mag, RP = 14.04 mag, BP = 15.6 mag
 Object Magnitude          : V = 13.35 mag
 Estimated Magnitude Drop  : 0.2 mag
 Estimated Max. Duration   : 13.3 sec
 Speed of the shadow       : 12.0 km/s
 Object Mean Diameter      : 159.9 km  (src: astorb) => apparent = 92 mas
 Apparent Motion           : 0.4150 arcs/min @ PA = 279 deg
 Horizontal Parallax       : 3.6650 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 142° (sunlit = 26%), Sun = 154°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL138
 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


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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