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Stellar Occultation by (519817) 2013 HN157 on 2024-10-11 (23:44:27 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] : 8114f9e0-ddb5-11f0-547e-879bebff48d1 [observed] Occultation Date + Time : 2024-10-11 at 23:44:27 UT +/- 0.18 min [1] Object Designation : (519817) 2013 HN157 Star Designation : GDR3 2652410315534825088 Star Coordinates (ICRF) : RA = 22 59 27.5988, DE = +00 57 44.828 [2] Star Magnitudes : G = 5.18 mag, RP = 4.53 mag, BP = 5.66 mag Object Magnitude : V = 20.95 mag Estimated Magnitude Drop : 15.8 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 6.6 km/s Object Mean Diameter : 1.50 km (src: astorb) => apparent = 1 mas Apparent Motion : 0.3050 arcs/min @ PA = 233 deg Horizontal Parallax : 4.8810 arcs Dynamical Class : MBA Elongation to Moon & Sun : 44° (sunlit = 63%), Sun = 147° Cross-track uncertainty : 31.7 mas = 41 km = 27.62 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#16 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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