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Stellar Occultation by (6484) Barthibbs on 2023-05-18 (22:30:20 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] : 9a270ba0-ddb3-11f0-547e-a53bb237d075 [observed]

 Occultation Date + Time   : 2023-05-18 at 22:30:20 UT +/- 0.01 min  [1]
 Object Designation        : (6484) Barthibbs
 Star Designation          : GDR3 3975988218184076544
 Star Coordinates (ICRF)   : RA = 11 43 33.3275, DE = +19 45 42.119  [2]
 Star Magnitudes           : G = 11.75 mag, RP = 11.27 mag, BP = 12.06 mag
 Object Magnitude          : V = 17.98 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 1.2 sec
 Speed of the shadow       : 8.0 km/s
 Object Mean Diameter      : 9.8 km  (src: astorb) => apparent = 6 mas
 Apparent Motion           : 0.2683 arcs/min @ PA = 167 deg
 Horizontal Parallax       : 3.5860 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 118° (sunlit = 1%), Sun = 110°
 Cross-track uncertainty   : 0.5 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.66 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#61
 Note                      : FP:true

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


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