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Stellar Occultation by (1845) Helewalda on 2023-11-08 (20:42:24 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] : 366cb0f0-ddb4-11f0-547e-3c9efd7d2e32 [observed] Occultation Date + Time : 2023-11-08 at 20:42:24 UT +/- 0.01 min [1] Object Designation : (1845) Helewalda Star Designation : GDR3 2481632382802424448 Star Coordinates (ICRF) : RA = 01 21 33.3708, DE = -06 21 03.526 [2] Star Magnitudes : G = 13.96 mag, RP = 13.29 mag, BP = 14.49 mag Object Magnitude : V = 15.82 mag Estimated Magnitude Drop : 2.0 mag Estimated Max. Duration : 2.1 sec Speed of the shadow : 9.1 km/s Object Mean Diameter : 19.1 km (src: astorb) => apparent = 13 mas Apparent Motion : 0.3683 arcs/min @ PA = 256 deg Horizontal Parallax : 4.3010 arcs Dynamical Class : MBA Elongation to Moon & Sun : 156° (sunlit = 19%), Sun = 147° Cross-track uncertainty : 1.1 mas = 1 km = 0.09 path-width (1-sig) RUWE and duplicate source : 7.98 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#69 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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