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Stellar Occultation by (1766) Slipher on 2025-09-06 (19:23:06 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] : 64d2b6d0-ddb7-11f0-547e-35f1d5f7837e [observed] Occultation Date + Time : 2025-09-06 at 19:23:06 UT +/- 0.0 min [1] Object Designation : (1766) Slipher Star Designation : GDR3 4123900539686442496 Star Coordinates (ICRF) : RA = 17 41 03.6247, DE = -17 18 23.756 [2] Star Magnitudes : G = 13.77 mag, RP = 12.21 mag, BP = 17.29 mag Object Magnitude : V = 17.41 mag Estimated Magnitude Drop : 3.7 mag Estimated Max. Duration : 2.1 sec Speed of the shadow : 11.5 km/s Object Mean Diameter : 24.5 km (src: astorb) => apparent = 15 mas Apparent Motion : 0.4217 arcs/min @ PA = 105 deg Horizontal Parallax : 3.8770 arcs Dynamical Class : MBA Elongation to Moon & Sun : 67° (sunlit = 99%), Sun = 101° Cross-track uncertainty : 0.6 mas = 0 km = 0.04 path-width (1-sig) RUWE and duplicate source : 0.8 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#71 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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