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Stellar Occultation by (19615) 1999 OB3 on 2025-09-29 (21:32:09 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] : 9b52ef30-ddb8-11f0-547e-bb20ddffc82e [observed] Occultation Date + Time : 2025-09-29 at 21:32:09 UT +/- 0.01 min [1] Object Designation : (19615) 1999 OB3 Star Designation : GDR3 0119177031703446656 Star Coordinates (ICRF) : RA = 03 19 52.8722, DE = +28 53 42.788 [2] Star Magnitudes : G = 14.57 mag, RP = 13.71 mag, BP = 15.32 mag Object Magnitude : V = 16.97 mag Estimated Magnitude Drop : 2.5 mag Estimated Max. Duration : 3.7 sec Speed of the shadow : 3.2 km/s Object Mean Diameter : 11.8 km (src: astorb) => apparent = 8 mas Apparent Motion : 0.1283 arcs/min @ PA = 252 deg Horizontal Parallax : 4.3060 arcs Dynamical Class : MBA Elongation to Moon & Sun : 139° (sunlit = 49%), Sun = 131° Cross-track uncertainty : 0.2 mas = 0 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#72 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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