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Stellar Occultation by (13919) 1984 SO4 on 2025-08-28 (02:39:32 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] : 54bde490-ddb7-11f0-547e-819e8fda17a3 [observed] Occultation Date + Time : 2025-08-28 at 02:39:32 UT +/- 0.0 min [1] Object Designation : (13919) 1984 SO4 Star Designation : GDR3 2667707958251294720 Star Coordinates (ICRF) : RA = 21 39 38.0427, DE = -06 46 25.787 [2] Star Magnitudes : G = 13.68 mag, RP = 13.05 mag, BP = 13.86 mag Object Magnitude : V = 16.11 mag Estimated Magnitude Drop : 2.5 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 7.1 km/s Object Mean Diameter : 5.2 km (src: astorb) => apparent = 7 mas Apparent Motion : 0.5767 arcs/min @ PA = 259 deg Horizontal Parallax : 8.6670 arcs Dynamical Class : MBA Elongation to Moon & Sun : 115° (sunlit = 22%), Sun = 168° Cross-track uncertainty : 1.5 mas = 1 km = 0.21 path-width (1-sig) RUWE and duplicate source : 6.41 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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