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Stellar Occultation by (16538) 1991 PO12 on 2025-08-15 (20:51:25 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] : 427f2d70-ddb7-11f0-547e-b5ccffb84a97 [observed] Occultation Date + Time : 2025-08-15 at 20:51:25 UT +/- 0.0 min [1] Object Designation : (16538) 1991 PO12 Star Designation : GDR3 6869799438338467584 Star Coordinates (ICRF) : RA = 19 42 01.3291, DE = -18 28 57.677 [2] Star Magnitudes : G = 12.22 mag, RP = 11.67 mag, BP = 12.59 mag Object Magnitude : V = 17.42 mag Estimated Magnitude Drop : 5.2 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 8.3 km/s Object Mean Diameter : 5.3 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.4800 arcs/min @ PA = 246 deg Horizontal Parallax : 6.1600 arcs Dynamical Class : MBA Elongation to Moon & Sun : 114° (sunlit = 54%), Sun = 151° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#66 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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