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Stellar Occultation by (15861) Ispahan on 2025-11-17 (01:15:06 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] : b94e4200-ddb8-11f0-547e-11f16ef5da30 [observed] Occultation Date + Time : 2025-11-17 at 01:15:06 UT +/- 0.0 min [1] Object Designation : (15861) Ispahan Star Designation : GDR3 0739117829592206080 Star Coordinates (ICRF) : RA = 10 05 59.6454, DE = +26 53 38.179 [2] Star Magnitudes : G = 12.87 mag, RP = 12.17 mag, BP = 13.43 mag Object Magnitude : V = 18.8 mag Estimated Magnitude Drop : 5.9 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 15.4 km/s Object Mean Diameter : 9.8 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.3950 arcs/min @ PA = 86 deg Horizontal Parallax : 2.7270 arcs Dynamical Class : MBA Elongation to Moon & Sun : 58° (sunlit = 9%), Sun = 91° Cross-track uncertainty : 0.7 mas = 1 km = 0.17 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#61 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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