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Stellar Occultation by (223318) 2003 QT12 on 2025-09-19 (19:32:16 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] : 73cb1c90-ddb7-11f0-547e-60ac9ebd9605 [observed]

 Occultation Date + Time   : 2025-09-19 at 19:32:16 UT +/- 0.07 min  [1]
 Object Designation        : (223318) 2003 QT12
 Star Designation          : GDR3 4080379189328716288
 Star Coordinates (ICRF)   : RA = 19 08 18.2593, DE = -23 39 30.028  [2]
 Star Magnitudes           : G = 14.02 mag, RP = 13.23 mag, BP = 14.68 mag
 Object Magnitude          : V = 20.12 mag
 Estimated Magnitude Drop  : 6.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 9.2 km/s
 Object Mean Diameter      : 2.7 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3750 arcs/min @ PA = 106 deg
 Horizontal Parallax       : 4.3420 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 132° (sunlit = 4%), Sun = 108°
 Cross-track uncertainty   : 3.7 mas = 5 km = 2.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#32
 Note                      : FP:true

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


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