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Stellar Occultation by (51938) 2001 QL159 on 2023-09-09 (19:03:23 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] : 05f13130-ddb4-11f0-547e-5acaff8f857b [observed]

 Occultation Date + Time   : 2023-09-09 at 19:03:23 UT +/- 0.02 min  [1]
 Object Designation        : (51938) 2001 QL159
 Star Designation          : GDR3 4101432496236313856
 Star Coordinates (ICRF)   : RA = 18 59 39.8032, DE = -14 24 24.986  [2]
 Star Magnitudes           : G = 12.96 mag, RP = 12.41 mag, BP = 13.33 mag
 Object Magnitude          : V = 19.32 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 6.8 km/s
 Object Mean Diameter      : 6.0 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2133 arcs/min @ PA = 156 deg
 Horizontal Parallax       : 3.3430 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 166° (sunlit = 23%), Sun = 117°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL59
 Note                      : FP:true

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


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