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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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