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Stellar Occultation by (542968) 2013 QY22 on 2024-07-08 (21:55:31 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] : f532bc00-ddb4-11f0-547e-eda57f3d11ec [observed]

 Occultation Date + Time   : 2024-07-08 at 21:55:31 UT +/- 0.09 min  [1]
 Object Designation        : (542968) 2013 QY22
 Star Designation          : GDR3 4222661560230535424
 Star Coordinates (ICRF)   : RA = 20 15 34.3291, DE = -02 47 37.555  [2]
 Star Magnitudes           : G = 11.38 mag, RP = 10.8 mag, BP = 11.8 mag
 Object Magnitude          : V = 19.37 mag
 Estimated Magnitude Drop  : 8.0 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 9.6 km/s
 Object Mean Diameter      : 2.9 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4533 arcs/min @ PA = 240 deg
 Horizontal Parallax       : 5.0250 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 154° (sunlit = 9%), Sun = 156°
 Cross-track uncertainty   : 23.3 mas = 29 km = 10.20 path-width (1-sig)
 RUWE and duplicate source : 0.75 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#56
 Note                      : FP:true

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


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