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Stellar Occultation by (409) Aspasia on 2022-12-16 (19:36:53 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] : 39fb2450-ddb3-11f0-547e-302bbedee622 [observed] Occultation Date + Time : 2022-12-16 at 19:36:53 UT +/- 0.0 min [1] Object Designation : (409) Aspasia Star Designation : GDR3 6899484980973473792 Star Coordinates (ICRF) : RA = 21 22 01.9325, DE = -05 14 51.243 [2] Star Magnitudes : G = 11.72 mag, RP = 10.95 mag, BP = 12.35 mag Object Magnitude : V = 12.92 mag Estimated Magnitude Drop : 1.5 mag Estimated Max. Duration : 4.7 sec Speed of the shadow : 34.7 km/s Object Mean Diameter : 161.6 km (src: astorb) => apparent = 74 mas Apparent Motion : 0.9550 arcs/min @ PA = 78 deg Horizontal Parallax : 2.9270 arcs Dynamical Class : MBA Elongation to Moon & Sun : 139° (sunlit = 46%), Sun = 57° Cross-track uncertainty : 1.0 mas = 2 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#136 Note : FP:true Object is a <Gaia mass determination> target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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