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Stellar Occultation by (85424) 1997 AA3 on 2023-08-13 (00:33:24 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] : ea190c80-ddb3-11f0-547e-f25abfbec72a [observed]

 Occultation Date + Time   : 2023-08-13 at 00:33:24 UT +/- 0.01 min  [1]
 Object Designation        : (85424) 1997 AA3
 Star Designation          : GDR3 0298172611262458240
 Star Coordinates (ICRF)   : RA = 01 53 37.5399, DE = +27 15 31.059  [2]
 Star Magnitudes           : G = 10.57 mag, RP = 10.19 mag, BP = 10.8 mag
 Object Magnitude          : V = 18.12 mag
 Estimated Magnitude Drop  : 7.5 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 15.6 km/s
 Object Mean Diameter      : 6.2 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.6767 arcs/min @ PA = 35 deg
 Horizontal Parallax       : 4.6200 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 66° (sunlit = 10%), Sun = 103°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.45 path-width (1-sig)
 RUWE and duplicate source : 1.25 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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