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Stellar Occultation by (313) Chaldaea on 2025-03-05 (04:28:38 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] : 0aca7410-8576-11ef-78cd-d758bf9dcb1d [asteroids]

 Occultation Date + Time   : 2025-03-05 at 04:28:38 UT +/- 0.02 min  [1]
 Object Designation        : (313) Chaldaea
 Star Designation          : GDR3 3602623794861336064
 Star Coordinates (ICRF)   : RA = 11 56 13.7729, DE = -01 25 50.116  [2]
 Star Magnitudes           : G = 13.06 mag, RP = 12.55 mag, BP = 13.4 mag
 Object Magnitude          : V = 11.36 mag
 Estimated Magnitude Drop  : 0.2 mag
 Estimated Max. Duration   : 11.2 sec
 Object Mean Diameter      : 96.3 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 8.6 km/s
 Elongation to Moon & Sun  : 124° (sunlit = 33%), Sun = 165°
 Cross-track uncertainty   : 1.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.89 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#122

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


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