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Stellar Occultation by (187) Lamberta on 2025-10-06 (23:38:18 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] : 92ee3110-ddb8-11f0-547e-bf357f1f9693 [observed]

 Occultation Date + Time   : 2025-10-06 at 23:38:18 UT +/- 0.01 min  [1]
 Object Designation        : (187) Lamberta
 Star Designation          : GDR3 3451057899383526144
 Star Coordinates (ICRF)   : RA = 05 57 23.1700, DE = +32 43 11.357  [2]
 Star Magnitudes           : G = 14.58 mag, RP = 14.01 mag, BP = 14.97 mag
 Object Magnitude          : V = 14.09 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 14.4 sec
 Speed of the shadow       : 9.1 km/s
 Object Mean Diameter      : 131.2 km  (src: astorb) => apparent = 64 mas
 Apparent Motion           : 0.2683 arcs/min @ PA = 51 deg
 Horizontal Parallax       : 3.1180 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 78° (sunlit = 100%), Sun = 104°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#131
 Note                      : FP:true

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


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