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Stellar Occultation by (386) Siegena on 2024-09-24 (18:48:47 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] : 7161cfa0-ddb5-11f0-547e-5c0abfe794db [observed]

 Occultation Date + Time   : 2024-09-24 at 18:48:47 UT +/- 0.01 min  [1]
 Object Designation        : (386) Siegena
 Star Designation          : GDR3 4204851499100496768
 Star Coordinates (ICRF)   : RA = 19 17 48.7093, DE = -07 22 11.530  [2]
 Star Magnitudes           : G = 13.91 mag, RP = 13.28 mag, BP = 14.38 mag
 Object Magnitude          : V = 12.68 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 12.9 sec
 Speed of the shadow       : 12.8 km/s
 Object Mean Diameter      : 165.0 km  (src: astorb) => apparent = 101 mas
 Apparent Motion           : 0.4700 arcs/min @ PA = 139 deg
 Horizontal Parallax       : 3.9130 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 153° (sunlit = 50%), Sun = 107°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#140
 Note                      : FP:true

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


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