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Stellar Occultation by (16817) Onderlicka on 2023-09-23 (21:38:06 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] : 1036e450-ddb4-11f0-547e-df1bbe7e3c6a [observed]

 Occultation Date + Time   : 2023-09-23 at 21:38:06 UT +/- 0.01 min  [1]
 Object Designation        : (16817) Onderlicka
 Star Designation          : GDR3 2601535225322725504
 Star Coordinates (ICRF)   : RA = 22 38 59.9490, DE = -12 30 38.477  [2]
 Star Magnitudes           : G = 12.97 mag, RP = 12.38 mag, BP = 13.4 mag
 Object Magnitude          : V = 19.05 mag
 Estimated Magnitude Drop  : 6.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 10.7 km/s
 Object Mean Diameter      : 3.4 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4967 arcs/min @ PA = 256 deg
 Horizontal Parallax       : 4.9490 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 52° (sunlit = 62%), Sun = 156°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.49 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#53
 Note                      : FP:true

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


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