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Stellar Occultation by (16915) Bredthauer on 2025-10-06 (04:49:50 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] : 84529150-ddb8-11f0-547e-c2ea7aae91f2 [observed]

 Occultation Date + Time   : 2025-10-06 at 04:49:50 UT +/- 0.01 min  [1]
 Object Designation        : (16915) Bredthauer
 Star Designation          : GDR3 0113084328535958400
 Star Coordinates (ICRF)   : RA = 02 47 19.3793, DE = +23 45 36.721  [2]
 Star Magnitudes           : G = 13.92 mag, RP = 13.22 mag, BP = 14.48 mag
 Object Magnitude          : V = 18.66 mag
 Estimated Magnitude Drop  : 4.8 mag
 Estimated Max. Duration   : 1.0 sec
 Speed of the shadow       : 12.5 km/s
 Object Mean Diameter      : 12.9 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.2900 arcs/min @ PA = 266 deg
 Horizontal Parallax       : 2.4620 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 47° (sunlit = 99%), Sun = 146°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.20 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#64
 Note                      : FP:true

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


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