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Stellar Occultation by (57) Mnemosyne on 2023-04-20 (20:43:45 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] : 8ec5d660-ddb3-11f0-547e-56abefead7aa [observed]

 Occultation Date + Time   : 2023-04-20 at 20:43:45 UT +/- 0.0 min  [1]
 Object Designation        : (57) Mnemosyne
 Star Designation          : GDR3 3339149885082087808
 Star Coordinates (ICRF)   : RA = 05 24 22.9168, DE = +10 29 51.442  [2]
 Star Magnitudes           : G = 13.82 mag, RP = 13.21 mag, BP = 14.25 mag
 Object Magnitude          : V = 12.78 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 3.1 sec
 Speed of the shadow       : 36.1 km/s
 Object Mean Diameter      : 112.6 km  (src: astorb) => apparent = 45 mas
 Apparent Motion           : 0.8750 arcs/min @ PA = 82 deg
 Horizontal Parallax       : 2.5760 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 43° (sunlit = 1%), Sun = 52°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79
 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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