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Stellar Occultation by (122539) 2000 QN220 on 2025-09-10 (04:31:23 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] : 68735d30-ddb7-11f0-547e-0074f2dd5235 [observed]

 Occultation Date + Time   : 2025-09-10 at 04:31:23 UT +/- 0.11 min  [1]
 Object Designation        : (122539) 2000 QN220
 Star Designation          : GDR3 2587041978441544832
 Star Coordinates (ICRF)   : RA = 01 27 00.9702, DE = +12 49 06.157  [2]
 Star Magnitudes           : G = 11.52 mag, RP = 11.07 mag, BP = 11.79 mag
 Object Magnitude          : V = 19.21 mag
 Estimated Magnitude Drop  : 7.7 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 3.4 km/s
 Object Mean Diameter      : 2.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2000 arcs/min @ PA = 272 deg
 Horizontal Parallax       : 6.3190 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 4° (sunlit = 92%), Sun = 143°
 Cross-track uncertainty   : 19.0 mas = 19 km = 8.34 path-width (1-sig)
 RUWE and duplicate source : 1.62 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#38
 Note                      : FP:true

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


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