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Stellar Occultation by (44245) 1998 QG40 on 2023-09-05 (22:37:08 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] : febed890-ddb3-11f0-547e-1fdeff6f8a37 [observed] Occultation Date + Time : 2023-09-05 at 22:37:08 UT +/- 0.01 min [1] Object Designation : (44245) 1998 QG40 Star Designation : GDR3 2576180315387845760 Star Coordinates (ICRF) : RA = 01 08 07.1963, DE = +05 43 48.532 [2] Star Magnitudes : G = 11.28 mag, RP = 10.59 mag, BP = 11.84 mag Object Magnitude : V = 18.2 mag Estimated Magnitude Drop : 6.9 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 6.3 km/s Object Mean Diameter : 3.4 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.3967 arcs/min @ PA = 217 deg Horizontal Parallax : 6.6660 arcs Dynamical Class : MBA Elongation to Moon & Sun : 44° (sunlit = 60%), Sun = 145° Cross-track uncertainty : 1.0 mas = 0 km = 0.28 path-width (1-sig) RUWE and duplicate source : 1.2 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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