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Stellar Occultation by (1136) Mercedes on 2023-08-04 (00:17:30 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] : e7859060-ddb3-11f0-547e-b30bbe2ff3ba [observed] Occultation Date + Time : 2023-08-04 at 00:17:30 UT +/- 0.0 min [1] Object Designation : (1136) Mercedes Star Designation : GDR3 4223546735813693312 Star Coordinates (ICRF) : RA = 20 06 43.2840, DE = -02 40 32.830 [2] Star Magnitudes : G = 14.55 mag, RP = 13.85 mag, BP = 15.09 mag Object Magnitude : V = 13.68 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 3.6 sec Speed of the shadow : 7.1 km/s Object Mean Diameter : 25.3 km (src: astorb) => apparent = 32 mas Apparent Motion : 0.5417 arcs/min @ PA = 252 deg Horizontal Parallax : 8.1050 arcs Dynamical Class : MBA Elongation to Moon & Sun : 45° (sunlit = 93%), Sun = 161° Cross-track uncertainty : 0.7 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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