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Stellar Occultation by (171056) 2005 ED121 on 2024-10-20 (20:43:57 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] : 8aadcb30-ddb5-11f0-547e-2cd86bff2025 [observed]

 Occultation Date + Time   : 2024-10-20 at 20:43:57 UT +/- 0.03 min  [1]
 Object Designation        : (171056) 2005 ED121
 Star Designation          : GDR3 6885255582523241984
 Star Coordinates (ICRF)   : RA = 21 00 32.5327, DE = -14 22 40.500  [2]
 Star Magnitudes           : G = 12.94 mag, RP = 12.35 mag, BP = 13.36 mag
 Object Magnitude          : V = 20.6 mag
 Estimated Magnitude Drop  : 7.7 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 8.5 km/s
 Object Mean Diameter      : 3.5 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2550 arcs/min @ PA = 52 deg
 Horizontal Parallax       : 3.1870 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 121° (sunlit = 84%), Sun = 105°
 Cross-track uncertainty   : 3.3 mas = 6 km = 1.89 path-width (1-sig)
 RUWE and duplicate source : 3.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL35
 Note                      : FP:true

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


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