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Stellar Occultation by (950) Ahrensa on 2024-08-20 (23:20:38 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] : ed0ae730-ddb1-11f0-547e-5ce7ff7daafe [observed] Occultation Date + Time : 2024-08-20 at 23:20:38 UT +/- 0.0 min [1] Object Designation : (950) Ahrensa Star Designation : GDR3 4298165917077059328 Star Coordinates (ICRF) : RA = 19 53 49.3986, DE = +07 41 43.899 [2] Star Magnitudes : G = 14.95 mag, RP = 14.08 mag, BP = 15.75 mag Object Magnitude : V = 15.43 mag Estimated Magnitude Drop : 1.0 mag Estimated Max. Duration : 1.1 sec Speed of the shadow : 13.4 km/s Object Mean Diameter : 15.0 km (src: astorb) => apparent = 12 mas Apparent Motion : 0.6317 arcs/min @ PA = 212 deg Horizontal Parallax : 5.0150 arcs Dynamical Class : MBA Elongation to Moon & Sun : 51° (sunlit = 98%), Sun = 142° Cross-track uncertainty : 0.4 mas = 0 km = 0.03 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#81 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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