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Stellar Occultation by (255) Oppavia on 2025-12-09 (20:33:54 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] : d31e3aa0-ddb8-11f0-547e-dbaec7f7f066 [observed] Occultation Date + Time : 2025-12-09 at 20:33:54 UT +/- 0.01 min [1] Object Designation : (255) Oppavia Star Designation : GDR3 0189512511358644992 Star Coordinates (ICRF) : RA = 05 34 14.8781, DE = +37 04 03.204 [2] Star Magnitudes : G = 12.27 mag, RP = 11.06 mag, BP = 13.91 mag Object Magnitude : V = 14.36 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 4.8 sec Speed of the shadow : 12.0 km/s Object Mean Diameter : 57.4 km (src: astorb) => apparent = 45 mas Apparent Motion : 0.5683 arcs/min @ PA = 276 deg Horizontal Parallax : 5.0270 arcs Dynamical Class : MBA Elongation to Moon & Sun : 60° (sunlit = 71%), Sun = 165° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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