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Stellar Occultation by (77745) 2001 OT107 on 2023-08-09 (20:00:11 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] : e7cfdfd0-ddb3-11f0-547e-1d614e4fed75 [observed] Occultation Date + Time : 2023-08-09 at 20:00:11 UT +/- 0.0 min [1] Object Designation : (77745) 2001 OT107 Star Designation : GDR3 4189651712908475392 Star Coordinates (ICRF) : RA = 19 51 28.9157, DE = -12 13 37.335 [2] Star Magnitudes : G = 13.05 mag, RP = 12.32 mag, BP = 13.64 mag Object Magnitude : V = 17.41 mag Estimated Magnitude Drop : 4.4 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 12.8 km/s Object Mean Diameter : 6.6 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.6250 arcs/min @ PA = 296 deg Horizontal Parallax : 5.1740 arcs Dynamical Class : MBA Elongation to Moon & Sun : 125° (sunlit = 36%), Sun = 159° Cross-track uncertainty : 2.0 mas = 2 km = 0.37 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#51 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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