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Stellar Occultation by (20120) Ryugatake on 2024-08-08 (22:00:23 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] : 34c0b930-ddb5-11f0-547e-291dfcf7c999 [observed]

 Occultation Date + Time   : 2024-08-08 at 22:00:23 UT +/- 0.01 min  [1]
 Object Designation        : (20120) Ryugatake
 Star Designation          : GDR3 4251557408704309760
 Star Coordinates (ICRF)   : RA = 18 47 15.7925, DE = -08 44 41.133  [2]
 Star Magnitudes           : G = 12.87 mag, RP = 11.87 mag, BP = 13.9 mag
 Object Magnitude          : V = 17.77 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 5.4 km/s
 Object Mean Diameter      : 4.8 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.3033 arcs/min @ PA = 271 deg
 Horizontal Parallax       : 6.0220 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 96° (sunlit = 17%), Sun = 143°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.29 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#57
 Note                      : FP:true

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


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