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Stellar Occultation by (5780) Lafontaine on 2025-12-31 (21:20:47 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] : 6a9e14b0-d997-11f1-43f3-cfdbfa0f921e [observed]

 Occultation Date + Time   : 2025-12-31 at 21:20:47 UT +/- 0.0 min  [1]
 Object Designation        : (5780) Lafontaine
 Star Designation          : GDR3 0595174165330395904
 Star Coordinates (ICRF)   : RA = 08 43 23.9237, DE = +07 03 30.509  [2]
 Star Magnitudes           : G = 13.51 mag, RP = 12.87 mag, BP = 13.99 mag
 Object Magnitude          : V = 17.72 mag
 Estimated Magnitude Drop  : 4.2 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 11.9 km/s
 Object Mean Diameter      : 12.9 km  (src: astorb) => apparent = 6 mas
 Apparent Motion           : 0.3550 arcs/min @ PA = 270 deg
 Horizontal Parallax       : 3.1760 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 68° (sunlit = 91%), Sun = 147°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 0.92 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL68
 Note                      : FP:true

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


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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