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Stellar Occultation by (51919) 2001 QL86 on 2023-07-22 (20:37:53 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] : d67dd2a0-ddb3-11f0-547e-f610ad6f4181 [observed]

 Occultation Date + Time   : 2023-07-22 at 20:37:53 UT +/- 0.0 min  [1]
 Object Designation        : (51919) 2001 QL86
 Star Designation          : GDR3 4162890935614581248
 Star Coordinates (ICRF)   : RA = 17 32 17.7017, DE = -11 38 55.330  [2]
 Star Magnitudes           : G = 12.48 mag, RP = 11.37 mag, BP = 13.77 mag
 Object Magnitude          : V = 18.29 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 1.0 sec
 Speed of the shadow       : 8.6 km/s
 Object Mean Diameter      : 8.7 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.2850 arcs/min @ PA = 271 deg
 Horizontal Parallax       : 3.5150 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 87° (sunlit = 22%), Sun = 142°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#64
 Note                      : FP:true

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


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