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Stellar Occultation by (31603) 1999 GQ3 on 2023-05-02 (19:40:14 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] : 93097380-ddb3-11f0-547e-082a67fde427 [observed]

 Occultation Date + Time   : 2023-05-02 at 19:40:14 UT +/- 0.0 min  [1]
 Object Designation        : (31603) 1999 GQ3
 Star Designation          : GDR3 3358045679602516480
 Star Coordinates (ICRF)   : RA = 06 52 29.1952, DE = +16 19 22.281  [2]
 Star Magnitudes           : G = 11.81 mag, RP = 11.6 mag, BP = 11.92 mag
 Object Magnitude          : V = 19.5 mag
 Estimated Magnitude Drop  : 7.7 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 30.2 km/s
 Object Mean Diameter      : 6.3 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.7633 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 2.6930 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 85° (sunlit = 91%), Sun = 61°
 Cross-track uncertainty   : 0.1 mas = 0 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 0.89 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#66
 Note                      : FP:true

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


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