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Stellar Occultation by (3109) Machin on 2026-10-19 (05:03:19 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] : 26973360-d9b4-11f1-43f3-8f8a7edf3ee0 [observed]

 Occultation Date + Time   : 2026-10-19 at 05:03:19 UT +/- 0.02 min  [1]
 Object Designation        : (3109) Machin
 Star Designation          : GDR3 3444374487890930048
 Star Coordinates (ICRF)   : RA = 05 45 49.8733, DE = +30 02 54.434  [2]
 Star Magnitudes           : G = 15.21 mag, RP = 14.79 mag, BP = 15.48 mag
 Object Magnitude          : V = 16.8 mag
 Estimated Magnitude Drop  : 1.8 mag
 Estimated Max. Duration   : 5.5 sec
 Speed of the shadow       : 4.2 km/s
 Object Mean Diameter      : 22.9 km  (src: astorb) => apparent = 16 mas
 Apparent Motion           : 0.1733 arcs/min @ PA = 21 deg
 Horizontal Parallax       : 4.3760 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 145° (sunlit = 55%), Sun = 119°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL70
 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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