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Stellar Occultation by (17490) 1991 UC3 on 2023-10-14 (22:54:53 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] : 29970420-ddb4-11f0-547e-6232fc9df4cb [observed] Occultation Date + Time : 2023-10-14 at 22:54:53 UT +/- 0.0 min [1] Object Designation : (17490) 1991 UC3 Star Designation : GDR3 3374210867053747328 Star Coordinates (ICRF) : RA = 06 17 25.2413, DE = +19 57 55.804 [2] Star Magnitudes : G = 12.15 mag, RP = 11.5 mag, BP = 12.58 mag Object Magnitude : V = 18.97 mag Estimated Magnitude Drop : 6.8 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 8.4 km/s Object Mean Diameter : 4.2 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.3667 arcs/min @ PA = 104 deg Horizontal Parallax : 4.6410 arcs Dynamical Class : MBA Elongation to Moon & Sun : 110° (sunlit = 0%), Sun = 107° Cross-track uncertainty : 0.4 mas = 0 km = 0.13 path-width (1-sig) RUWE and duplicate source : 1.58 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#51 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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