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Stellar Occultation by (15521) 1999 XH133 on 2023-03-27 (19:57:06 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] : 7ef40090-ddb3-11f0-547e-1051bfff6082 [observed]

 Occultation Date + Time   : 2023-03-27 at 19:57:06 UT +/- 0.01 min  [1]
 Object Designation        : (15521) 1999 XH133
 Star Designation          : GDR3 0171463757407015424
 Star Coordinates (ICRF)   : RA = 04 29 06.1113, DE = +31 18 53.027  [2]
 Star Magnitudes           : G = 11.17 mag, RP = 10.63 mag, BP = 11.53 mag
 Object Magnitude          : V = 19.29 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 25.4 km/s
 Object Mean Diameter      : 19.0 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.3717 arcs/min @ PA = 88 deg
 Horizontal Parallax       : 1.5590 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 13° (sunlit = 38%), Sun = 64°
 Cross-track uncertainty   : 1.0 mas = 4 km = 0.22 path-width (1-sig)
 RUWE and duplicate source : 1.16 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#54
 Note                      : FP:true

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


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