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Stellar Occultation by (259) Aletheia on 2019-03-31 (21:39:53 UT)



Event Details
 Occultation UUID [and db] : d257b311-dbbd-4fa0-b32a-5a27f247e509 [observed]

 Occultation Date + Time   : 2019-03-31 at 21:39:53 UT +/- 0.02 min  [1]
 Object Designation        : (259) Aletheia
 Star Designation          : GDR3 3714032532099594880
 Star Coordinates (ICRF)   : RA = 13 49 32.8309, DE = +04 57 09.844  [2]
 Star Magnitudes           : G = 11.2 mag, RP = 10.45 mag, BP = 11.83 mag
 Object Magnitude          : V = 12.1 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 16.6 sec
 Object Mean Diameter      : 179 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 10.7 km/s
 Elongation to Moon & Sun  : 118° (sunlit = 17%), Sun = 160°
 Cross-track uncertainty   : 5.3 mas = 7 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.25 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#134

 Object is a <Gaia mass determination> target !

 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


More Data and Informations
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