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Stellar Occultation by (369438) 2010 AO1 on 2025-09-18 (18:27:03 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] : 709fa630-ddb7-11f0-547e-a69bed988c44 [observed]

 Occultation Date + Time   : 2025-09-18 at 18:27:03 UT +/- 0.09 min  [1]
 Object Designation        : (369438) 2010 AO1
 Star Designation          : GDR3 0316583418073538304
 Star Coordinates (ICRF)   : RA = 01 29 02.7572, DE = +32 59 58.051  [2]
 Star Magnitudes           : G = 11.5 mag, RP = 11.02 mag, BP = 11.81 mag
 Object Magnitude          : V = 20.24 mag
 Estimated Magnitude Drop  : 8.7 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 8.9 km/s
 Object Mean Diameter      : 2.8 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3450 arcs/min @ PA = 294 deg
 Horizontal Parallax       : 4.1050 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 105° (sunlit = 10%), Sun = 138°
 Cross-track uncertainty   : 22.3 mas = 34 km = 12.37 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#29
 Note                      : FP:true

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


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