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Stellar Occultation by (406) Erna on 2024-06-29 (01:52:57 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] : af3e9730-ddb1-11f0-547e-7dd8d1f7ff2e [observed] Occultation Date + Time : 2024-06-29 at 01:52:57 UT +/- 0.0 min [1] Object Designation : (406) Erna Star Designation : GDR3 4052399362929648256 Star Coordinates (ICRF) : RA = 18 14 21.5518, DE = -27 45 03.889 [2] Star Magnitudes : G = 12.67 mag, RP = 11.25 mag, BP = 14.62 mag Object Magnitude : V = 14.05 mag Estimated Magnitude Drop : 1.7 mag Estimated Max. Duration : 4.5 sec Speed of the shadow : 11.0 km/s Object Mean Diameter : 49.2 km (src: astorb) => apparent = 40 mas Apparent Motion : 0.5317 arcs/min @ PA = 274 deg Horizontal Parallax : 5.1230 arcs Dynamical Class : MBA Elongation to Moon & Sun : 97° (sunlit = 48%), Sun = 174° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.78 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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