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Stellar Occultation by (202791) 2008 QC4 on 2023-09-29 (02:36:36 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] : 149ef960-ddb4-11f0-547e-41b57f957cdf [observed] Occultation Date + Time : 2023-09-29 at 02:36:36 UT +/- 0.06 min [1] Object Designation : (202791) 2008 QC4 Star Designation : GDR3 3360101143573318784 Star Coordinates (ICRF) : RA = 07 05 02.8290, DE = +16 08 24.667 [2] Star Magnitudes : G = 11.85 mag, RP = 11.45 mag, BP = 12.09 mag Object Magnitude : V = 20.62 mag Estimated Magnitude Drop : 8.8 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 19.0 km/s Object Mean Diameter : 8.3 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3233 arcs/min @ PA = 109 deg Horizontal Parallax : 1.8110 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 104° (sunlit = 100%), Sun = 80° Cross-track uncertainty : 17.0 mas = 59 km = 7.21 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#29 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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