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Stellar Occultation by (217553) 2007 GA47 on 2025-09-19 (21:54:07 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] : 74310a50-ddb7-11f0-547e-597c6f7b979d [observed]

 Occultation Date + Time   : 2025-09-19 at 21:54:07 UT +/- 0.09 min  [1]
 Object Designation        : (217553) 2007 GA47
 Star Designation          : GDR3 1740910636328845440
 Star Coordinates (ICRF)   : RA = 21 35 21.4051, DE = +08 39 28.321  [2]
 Star Magnitudes           : G = 11.0 mag, RP = 10.61 mag, BP = 11.22 mag
 Object Magnitude          : V = 19.96 mag
 Estimated Magnitude Drop  : 9.0 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 11.7 km/s
 Object Mean Diameter      : 2.6 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5050 arcs/min @ PA = 210 deg
 Horizontal Parallax       : 4.5960 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 156° (sunlit = 4%), Sun = 145°
 Cross-track uncertainty   : 19.7 mas = 27 km = 10.51 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#34
 Note                      : FP:true

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


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