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Stellar Occultation by (149) Medusa on 2023-09-22 (02:32:44 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] : 1120a810-ddb4-11f0-547e-3460ddef0164 [observed] Occultation Date + Time : 2023-09-22 at 02:32:44 UT +/- 0.0 min [1] Object Designation : (149) Medusa Star Designation : GDR3 3403978082792327296 Star Coordinates (ICRF) : RA = 05 27 22.3374, DE = +22 07 28.466 [2] Star Magnitudes : G = 14.87 mag, RP = 14.24 mag, BP = 15.32 mag Object Magnitude : V = 14.45 mag Estimated Magnitude Drop : 0.6 mag Estimated Max. Duration : 1.3 sec Speed of the shadow : 15.1 km/s Object Mean Diameter : 19.7 km (src: astorb) => apparent = 16 mas Apparent Motion : 0.7517 arcs/min @ PA = 89 deg Horizontal Parallax : 5.2830 arcs Dynamical Class : MBA Elongation to Moon & Sun : 174° (sunlit = 43%), Sun = 96° Cross-track uncertainty : 0.4 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#79 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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