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Stellar Occultation by (519817) 2013 HN157 on 2024-10-11 (23:44:27 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] : 8114f9e0-ddb5-11f0-547e-879bebff48d1 [observed]

 Occultation Date + Time   : 2024-10-11 at 23:44:27 UT +/- 0.18 min  [1]
 Object Designation        : (519817) 2013 HN157
 Star Designation          : GDR3 2652410315534825088
 Star Coordinates (ICRF)   : RA = 22 59 27.5988, DE = +00 57 44.828  [2]
 Star Magnitudes           : G = 5.18 mag, RP = 4.53 mag, BP = 5.66 mag
 Object Magnitude          : V = 20.95 mag
 Estimated Magnitude Drop  : 15.8 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 6.6 km/s
 Object Mean Diameter      : 1.50 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.3050 arcs/min @ PA = 233 deg
 Horizontal Parallax       : 4.8810 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 44° (sunlit = 63%), Sun = 147°
 Cross-track uncertainty   : 31.7 mas = 41 km = 27.62 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#16
 Note                      : FP:true

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


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