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Stellar Occultation by (8109) Danielwilliam on 2024-08-11 (21:21:10 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] : 39825ff0-ddb5-11f0-547e-1feadbdd749d [observed]

 Occultation Date + Time   : 2024-08-11 at 21:21:10 UT +/- 0.01 min  [1]
 Object Designation        : (8109) Danielwilliam
 Star Designation          : GDR3 4123772201683988864
 Star Coordinates (ICRF)   : RA = 17 45 04.0748, DE = -17 14 30.134  [2]
 Star Magnitudes           : G = 12.37 mag, RP = 11.77 mag, BP = 12.8 mag
 Object Magnitude          : V = 18.74 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 9.2 km/s
 Object Mean Diameter      : 4.8 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3950 arcs/min @ PA = 195 deg
 Horizontal Parallax       : 4.5570 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 46° (sunlit = 43%), Sun = 126°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 0.86 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL54
 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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