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Stellar Occultation by (173717) 2001 QC152 on 2023-10-15 (18:11:38 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] : 34b69c80-ddb4-11f0-547e-ffe4fff651b7 [observed]

 Occultation Date + Time   : 2023-10-15 at 18:11:38 UT +/- 0.1 min  [1]
 Object Designation        : (173717) 2001 QC152
 Star Designation          : GDR3 1918330997979149312
 Star Coordinates (ICRF)   : RA = 23 10 46.5079, DE = +40 11 54.464  [2]
 Star Magnitudes           : G = 13.44 mag, RP = 12.9 mag, BP = 13.8 mag
 Object Magnitude          : V = 18.69 mag
 Estimated Magnitude Drop  : 5.3 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 7.8 km/s
 Object Mean Diameter      : 3.2 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4350 arcs/min @ PA = 213 deg
 Horizontal Parallax       : 5.9540 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 134° (sunlit = 1%), Sun = 137°
 Cross-track uncertainty   : 22.3 mas = 23 km = 7.47 path-width (1-sig)
 RUWE and duplicate source : 1.52 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#20
 Note                      : FP:true

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


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