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Stellar Occultation by (1817) Katanga on 2023-07-09 (21:43:24 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] : c6a916a0-ddb3-11f0-547e-474a7e7f95fd [observed]

 Occultation Date + Time   : 2023-07-09 at 21:43:24 UT +/- 0.0 min  [1]
 Object Designation        : (1817) Katanga
 Star Designation          : GDR3 4112283713926493184
 Star Coordinates (ICRF)   : RA = 17 01 54.5937, DE = -25 30 00.302  [2]
 Star Magnitudes           : G = 14.71 mag, RP = 14.07 mag, BP = 15.14 mag
 Object Magnitude          : V = 13.77 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 1.5 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 15.9 km  (src: astorb) => apparent = 21 mas
 Apparent Motion           : 0.8233 arcs/min @ PA = 215 deg
 Horizontal Parallax       : 8.2960 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 118° (sunlit = 52%), Sun = 149°
 Cross-track uncertainty   : 1.0 mas = 0 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#72
 Note                      : FP:true

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


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