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Stellar Occultation by (209) Dido on 2025-11-05 (04:10:28 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] : a9c7f420-ddb8-11f0-547e-4a79cdbd1737 [observed]

 Occultation Date + Time   : 2025-11-05 at 04:10:28 UT +/- 0.02 min  [1]
 Object Designation        : (209) Dido
 Star Designation          : GDR3 3450299206296845440
 Star Coordinates (ICRF)   : RA = 06 00 24.3718, DE = +32 27 05.405  [2]
 Star Magnitudes           : G = 13.34 mag, RP = 12.5 mag, BP = 14.07 mag
 Object Magnitude          : V = 13.71 mag
 Estimated Magnitude Drop  : 1.0 mag
 Estimated Max. Duration   : 26.4 sec
 Speed of the shadow       : 6.1 km/s
 Object Mean Diameter      : 159.9 km  (src: astorb) => apparent = 86 mas
 Apparent Motion           : 0.1950 arcs/min @ PA = 303 deg
 Horizontal Parallax       : 3.4200 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 52° (sunlit = 100%), Sun = 132°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.00 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#138
 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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