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Stellar Occultation by (142) Polana on 2021-04-22 (19:57:47 UT)



Event Details
 Occultation UUID [and db] : ac5829e5-83cf-4ca7-9004-567d81f5945b [observed]

 Occultation Date + Time   : 2021-04-22 at 19:57:47 UT +/- 0.0 min  [1]
 Object Designation        : (142) Polana
 Star Designation          : GDR3 0146472098625499520
 Star Coordinates (ICRF)   : RA = 04 39 50.0784, DE = +22 56 07.455  [2]
 Star Magnitudes           : G = 11.37 mag, RP = 10.47 mag, BP = 12.22 mag
 Object Magnitude          : V = 16.11 mag
 Estimated Magnitude Drop  : 4.8 mag
 Estimated Max. Duration   : 1.4 sec
 Object Mean Diameter      : 55 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 39.2 km/s
 Elongation to Moon & Sun  : 82° (sunlit = 76%), Sun = 39°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.17 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68

 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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