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Stellar Occultation by (797) Montana on 2026-06-22 (23:22:20 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] : 74f0a500-33d3-11f1-6999-c3c8bffc3a87 [asteroids] Occultation Date + Time : 2026-06-22 at 23:22:20 UT +/- 0.0 min [1] Object Designation : (797) Montana Star Designation : GDR3 4119893399544061952 Star Coordinates (ICRF) : RA = 17 44 46.0663, DE = -19 27 42.677 [2] Star Magnitudes : G = 11.93 mag, RP = 10.56 mag, BP = 14.28 mag Object Magnitude : V = 13.29 mag Estimated Magnitude Drop : 1.6 mag Estimated Max. Duration : 3.0 sec Speed of the shadow : 9.6 km/s Object Mean Diameter : 28.4 km (src: astorb) => apparent = 28 mas Apparent Motion : 0.5733 arcs/min @ PA = 279 deg Horizontal Parallax : 6.3250 arcs Dynamical Class : MBA Elongation to Moon & Sun : 73° (sunlit = 61%), Sun = 174° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.71 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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