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Stellar Occultation by (131330) 2001 HW26 on 2024-07-18 (21:44:38 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] : 05e6db80-ddb5-11f0-547e-0a1df2f6d76b [observed]

 Occultation Date + Time   : 2024-07-18 at 21:44:38 UT +/- 0.01 min  [1]
 Object Designation        : (131330) 2001 HW26
 Star Designation          : GDR3 1785917770421928832
 Star Coordinates (ICRF)   : RA = 21 35 34.2173, DE = +18 21 26.492  [2]
 Star Magnitudes           : G = 11.93 mag, RP = 11.49 mag, BP = 12.2 mag
 Object Magnitude          : V = 18.93 mag
 Estimated Magnitude Drop  : 7.0 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 8.1 km/s
 Object Mean Diameter      : 4.8 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3267 arcs/min @ PA = 289 deg
 Horizontal Parallax       : 4.2670 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 75° (sunlit = 92%), Sun = 134°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.31 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#48
 Note                      : FP:true

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


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