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Stellar Occultation by (591) Irmgard on 2018-08-16 (01:38:27 UT)



Event Details
 Occultation UUID [and db] : 72902775-d55e-4dd4-bf7b-5ebfda70cfed [observed]

 Occultation Date + Time   : 2018-08-16 at 01:38:27 UT +/- 0.01 min  [1]
 Object Designation        : (591) Irmgard
 Star Designation          : GDR3 0116959694708441216
 Star Coordinates (ICRF)   : RA = 03 00 04.1782, DE = +28 51 11.897  [2]
 Star Magnitudes           : G = 13.79 mag, RP = 13.22 mag, BP = 14.19 mag
 Object Magnitude          : V = 16.52 mag
 Estimated Magnitude Drop  : 2.8 mag
 Estimated Max. Duration   : 3.5 sec
 Object Mean Diameter      : 52 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 14.8 km/s
 Elongation to Moon & Sun  : 150° (sunlit = 27%), Sun = 92°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63

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


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