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Stellar Occultation by (38454) Boroson on 2025-12-11 (05:01:41 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] : d4751810-ddb8-11f0-547e-91d5aee7e180 [observed]

 Occultation Date + Time   : 2025-12-11 at 05:01:41 UT +/- 0.01 min  [1]
 Object Designation        : (38454) Boroson
 Star Designation          : GDR3 3397906132907543552
 Star Coordinates (ICRF)   : RA = 05 36 54.0891, DE = +18 47 44.408  [2]
 Star Magnitudes           : G = 12.13 mag, RP = 11.67 mag, BP = 12.43 mag
 Object Magnitude          : V = 16.42 mag
 Estimated Magnitude Drop  : 4.3 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 12.1 km/s
 Object Mean Diameter      : 7.1 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.6967 arcs/min @ PA = 290 deg
 Horizontal Parallax       : 6.1120 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 77° (sunlit = 57%), Sun = 173°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.15 path-width (1-sig)
 RUWE and duplicate source : 1.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63
 Note                      : FP:true

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


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