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Stellar Occultation by (313) Chaldaea on 2026-07-09 (19:58:45 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] : 64a33000-d9aa-11f1-43f3-c155ebeb01bc [observed]

 Occultation Date + Time   : 2026-07-09 at 19:58:45 UT +/- 0.01 min  [1]
 Object Designation        : (313) Chaldaea
 Star Designation          : GDR3 4222175026335682304
 Star Coordinates (ICRF)   : RA = 20 16 37.9118, DE = -04 08 47.287  [2]
 Star Magnitudes           : G = 13.32 mag, RP = 12.48 mag, BP = 14.06 mag
 Object Magnitude          : V = 13.29 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 8.0 sec
 Speed of the shadow       : 12.0 km/s
 Object Mean Diameter      : 96.3 km  (src: astorb) => apparent = 73 mas
 Apparent Motion           : 0.5433 arcs/min @ PA = 257 deg
 Horizontal Parallax       : 4.8180 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 97° (sunlit = 28%), Sun = 157°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL130
 Note                      : FP:true

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


More Data and Informations
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