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Stellar Occultation by (9038) Helensteel on 2023-06-03 (22:13:08 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] : d1a87cd0-ddb3-11f0-547e-015bf97b3d80 [observed] Occultation Date + Time : 2023-06-03 at 22:13:08 UT +/- 0.0 min [1] Object Designation : (9038) Helensteel Star Designation : GDR3 4368875814786002944 Star Coordinates (ICRF) : RA = 17 32 48.5809, DE = -03 25 14.189 [2] Star Magnitudes : G = 11.65 mag, RP = 10.7 mag, BP = 12.58 mag Object Magnitude : V = 17.18 mag Estimated Magnitude Drop : 5.5 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 10.8 km/s Object Mean Diameter : 7.2 km (src: astorb) => apparent = 6 mas Apparent Motion : 0.5383 arcs/min @ PA = 270 deg Horizontal Parallax : 5.2760 arcs Dynamical Class : MBA Elongation to Moon & Sun : 26° (sunlit = 100%), Sun = 158° Cross-track uncertainty : 0.3 mas = 0 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#71 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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