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Stellar Occultation by (209) Dido on 2025-11-03 (01:29:27 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] : a9c97ac0-ddb8-11f0-547e-d120bfd9ddeb [observed]

 Occultation Date + Time   : 2025-11-03 at 01:29:27 UT +/- 0.03 min  [1]
 Object Designation        : (209) Dido
 Star Designation          : GDR3 3450294602092303488
 Star Coordinates (ICRF)   : RA = 06 01 00.2108, DE = +32 21 37.689  [2]
 Star Magnitudes           : G = 12.86 mag, RP = 12.0 mag, BP = 13.63 mag
 Object Magnitude          : V = 13.74 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 29.4 sec
 Speed of the shadow       : 5.4 km/s
 Object Mean Diameter      : 159.9 km  (src: astorb) => apparent = 85 mas
 Apparent Motion           : 0.1733 arcs/min @ PA = 309 deg
 Horizontal Parallax       : 3.3900 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 84° (sunlit = 91%), Sun = 130°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.00 path-width (1-sig)
 RUWE and duplicate source : 0.94 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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