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Stellar Occultation by (3010) Ushakov on 2023-05-19 (23:15:23 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] : 9947cf30-ddb3-11f0-547e-cd7baf9eeb01 [observed]

 Occultation Date + Time   : 2023-05-19 at 23:15:23 UT +/- 0.01 min  [1]
 Object Designation        : (3010) Ushakov
 Star Designation          : GDR3 4115971136665628160
 Star Coordinates (ICRF)   : RA = 17 16 02.2832, DE = -20 31 23.108  [2]
 Star Magnitudes           : G = 10.84 mag, RP = 10.36 mag, BP = 11.14 mag
 Object Magnitude          : V = 17.02 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 8.5 km/s
 Object Mean Diameter      : 9.2 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.3800 arcs/min @ PA = 275 deg
 Horizontal Parallax       : 4.7210 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 162° (sunlit = 0%), Sun = 159°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 4.99 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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