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Stellar Occultation by (4489) Dracius on 2023-11-07 (20:40:38 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] : 3497f0f0-ddb4-11f0-547e-0a46d6f63206 [observed] Occultation Date + Time : 2023-11-07 at 20:40:38 UT +/- 0.04 min [1] Object Designation : (4489) Dracius Star Designation : GDR3 3397890464866839168 Star Coordinates (ICRF) : RA = 05 39 04.2510, DE = +19 00 38.022 [2] Star Magnitudes : G = 11.27 mag, RP = 10.66 mag, BP = 11.7 mag Object Magnitude : V = 16.09 mag Estimated Magnitude Drop : 4.8 mag Estimated Max. Duration : 8.3 sec Speed of the shadow : 11.2 km/s Object Mean Diameter : 92.9 km (src: astorb) => apparent = 31 mas Apparent Motion : 0.2267 arcs/min @ PA = 288 deg Horizontal Parallax : 2.1510 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 78° (sunlit = 27%), Sun = 140° Cross-track uncertainty : 3.4 mas = 10 km = 0.11 path-width (1-sig) RUWE and duplicate source : 5.35 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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