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Stellar Occultation by (59430) 1999 GT12 on 2023-07-27 (20:51:24 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] : d9f85360-ddb3-11f0-547e-8ae4e5f8faea [observed]

 Occultation Date + Time   : 2023-07-27 at 20:51:24 UT +/- 0.01 min  [1]
 Object Designation        : (59430) 1999 GT12
 Star Designation          : GDR3 2672686890499187456
 Star Coordinates (ICRF)   : RA = 21 30 43.9902, DE = -03 36 17.179  [2]
 Star Magnitudes           : G = 10.98 mag, RP = 10.72 mag, BP = 11.12 mag
 Object Magnitude          : V = 19.31 mag
 Estimated Magnitude Drop  : 8.3 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 11.8 km/s
 Object Mean Diameter      : 4.6 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4167 arcs/min @ PA = 253 deg
 Horizontal Parallax       : 3.7520 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 86° (sunlit = 70%), Sun = 158°
 Cross-track uncertainty   : 1.4 mas = 2 km = 0.52 path-width (1-sig)
 RUWE and duplicate source : 3.72 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL54
 Note                      : FP:true

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


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