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Stellar Occultation by (54581) 2000 QW170 on 2025-11-10 (18:00:02 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] : b256cf80-ddb8-11f0-547e-977a2fcfdc3f [observed]

 Occultation Date + Time   : 2025-11-10 at 18:00:02 UT +/- 0.06 min  [1]
 Object Designation        : (54581) 2000 QW170
 Star Designation          : GDR3 0064414583772050560
 Star Coordinates (ICRF)   : RA = 03 41 03.3275, DE = +22 06 53.548  [2]
 Star Magnitudes           : G = 13.16 mag, RP = 12.46 mag, BP = 13.7 mag
 Object Magnitude          : V = 18.97 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 15.9 km/s
 Object Mean Diameter      : 11.6 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.3400 arcs/min @ PA = 253 deg
 Horizontal Parallax       : 2.2700 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 62° (sunlit = 66%), Sun = 170°
 Cross-track uncertainty   : 2.7 mas = 7 km = 0.65 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#43
 Note                      : FP:true

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


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