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Stellar Occultation by (131406) 2001 LB12 on 2025-09-05 (04:04:56 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] : 63d2abf0-ddb7-11f0-547e-392b7bb7acc6 [observed]

 Occultation Date + Time   : 2025-09-05 at 04:04:56 UT +/- 0.0 min  [1]
 Object Designation        : (131406) 2001 LB12
 Star Designation          : GDR3 3430302418387503872
 Star Coordinates (ICRF)   : RA = 06 08 26.4141, DE = +27 24 52.695  [2]
 Star Magnitudes           : G = 13.18 mag, RP = 12.4 mag, BP = 13.84 mag
 Object Magnitude          : V = 20.2 mag
 Estimated Magnitude Drop  : 7.0 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 23.9 km/s
 Object Mean Diameter      : 5.2 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5817 arcs/min @ PA = 97 deg
 Horizontal Parallax       : 2.5820 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 142° (sunlit = 92%), Sun = 71°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.33 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#50
 Note                      : FP:true

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


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