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Stellar Occultation by (48433) 1989 US1 on 2023-09-26 (19:03:05 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] : 33525190-ddb4-11f0-547e-5e1c3fbff62d [observed]

 Occultation Date + Time   : 2023-09-26 at 19:03:05 UT +/- 0.0 min  [1]
 Object Designation        : (48433) 1989 US1
 Star Designation          : GDR3 2385303615041861376
 Star Coordinates (ICRF)   : RA = 23 19 24.6851, DE = -22 41 53.993  [2]
 Star Magnitudes           : G = 11.03 mag, RP = 10.33 mag, BP = 11.58 mag
 Object Magnitude          : V = 16.2 mag
 Estimated Magnitude Drop  : 5.2 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 8.1 km/s
 Object Mean Diameter      : 6.2 km  (src: astorb) => apparent = 8 mas
 Apparent Motion           : 0.6133 arcs/min @ PA = 295 deg
 Horizontal Parallax       : 8.0130 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 19° (sunlit = 90%), Sun = 153°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#47
 Note                      : FP:true

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


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