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Stellar Occultation by (578) Happelia on 2024-11-15 (02:49:54 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] : 904afd10-85f5-11ef-78cd-09057ffa7b57 [asteroids]

 Occultation Date + Time   : 2024-11-15 at 02:49:54 UT +/- 0.0 min  [1]
 Object Designation        : (578) Happelia
 Star Designation          : GDR3 3443734125449385088
 Star Coordinates (ICRF)   : RA = 05 57 09.5338, DE = +29 48 26.573  [2]
 Star Magnitudes           : G = 13.38 mag, RP = 12.67 mag, BP = 13.94 mag
 Object Magnitude          : V = 14.58 mag
 Estimated Magnitude Drop  : 1.5 mag
 Estimated Max. Duration   : 6.9 sec
 Object Mean Diameter      : 69.3 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 10.1 km/s
 Elongation to Moon & Sun  : 47° (sunlit = 99%), Sun = 143°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#139

 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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