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Stellar Occultation by (407) Arachne on 2023-09-26 (04:20:54 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] : 9bde8700-ddb0-11f0-547e-909e7cefb395 [observed] Occultation Date + Time : 2023-09-26 at 04:20:54 UT +/- 0.0 min [1] Object Designation : (407) Arachne Star Designation : GDR3 3444375067711492224 Star Coordinates (ICRF) : RA = 05 46 07.3650, DE = +30 05 59.357 [2] Star Magnitudes : G = 11.83 mag, RP = 11.36 mag, BP = 12.14 mag Object Magnitude : V = 13.94 mag Estimated Magnitude Drop : 2.3 mag Estimated Max. Duration : 6.9 sec Speed of the shadow : 13.9 km/s Object Mean Diameter : 95.1 km (src: astorb) => apparent = 60 mas Apparent Motion : 0.5233 arcs/min @ PA = 85 deg Horizontal Parallax : 4.0210 arcs Dynamical Class : MBA Elongation to Moon & Sun : 130° (sunlit = 85%), Sun = 96° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.29 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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