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Stellar Occultation by (28303) 1999 CY72 on 2025-08-17 (22:45:50 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] : 5f3778f0-ddb7-11f0-547e-64d4ffe59f47 [observed] Occultation Date + Time : 2025-08-17 at 22:45:50 UT +/- 0.01 min [1] Object Designation : (28303) 1999 CY72 Star Designation : GDR3 4086989796855861632 Star Coordinates (ICRF) : RA = 18 56 13.9466, DE = -17 19 32.881 [2] Star Magnitudes : G = 13.59 mag, RP = 13.03 mag, BP = 13.96 mag Object Magnitude : V = 17.8 mag Estimated Magnitude Drop : 4.2 mag Estimated Max. Duration : 1.4 sec Speed of the shadow : 4.2 km/s Object Mean Diameter : 5.9 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.2050 arcs/min @ PA = 293 deg Horizontal Parallax : 5.2670 arcs Dynamical Class : MBA Elongation to Moon & Sun : 152° (sunlit = 31%), Sun = 138° Cross-track uncertainty : 0.7 mas = 0 km = 0.14 path-width (1-sig) RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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