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Stellar Occultation by (31227) 1998 BC41 on 2022-12-13 (22:25:16 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] : 38e54780-ddb3-11f0-547e-e8ade7199f98 [observed] Occultation Date + Time : 2022-12-13 at 22:25:16 UT +/- 0.0 min [1] Object Designation : (31227) 1998 BC41 Star Designation : GDR3 0872912009393594112 Star Coordinates (ICRF) : RA = 07 21 58.8159, DE = +27 17 06.143 [2] Star Magnitudes : G = 9.86 mag, RP = 8.84 mag, BP = 10.93 mag Object Magnitude : V = 16.93 mag Estimated Magnitude Drop : 7.1 mag Estimated Max. Duration : 1.0 sec Speed of the shadow : 12.0 km/s Object Mean Diameter : 11.7 km (src: astorb) => apparent = 8 mas Apparent Motion : 0.4733 arcs/min @ PA = 267 deg Horizontal Parallax : 4.1880 arcs Dynamical Class : MBA Elongation to Moon & Sun : 37° (sunlit = 73%), Sun = 153° Cross-track uncertainty : 0.3 mas = 0 km = 0.04 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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