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Stellar Occultation by (469442) 2002 GG166 on 2025-09-14 (19:00:14 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] : 7414a8b0-ddb7-11f0-547e-9863f9e70b6d [observed]

 Occultation Date + Time   : 2025-09-14 at 19:00:14 UT +/- 22.68 min  [1]
 Object Designation        : (469442) 2002 GG166
 Star Designation          : GDR3 4046452207560811520
 Star Coordinates (ICRF)   : RA = 18 22 54.8568, DE = -30 30 30.322  [2]
 Star Magnitudes           : G = 14.37 mag, RP = 13.42 mag, BP = 15.31 mag
 Object Magnitude          : V = 20.24 mag
 Estimated Magnitude Drop  : 5.9 mag
 Estimated Max. Duration   : 18.0 sec
 Speed of the shadow       : 4.3 km/s
 Object Mean Diameter      : 77.5 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.0250 arcs/min @ PA = 43 deg
 Horizontal Parallax       : 0.6040 arcs
 Dynamical Class           : TNO
 Elongation to Moon & Sun  : 172° (sunlit = 46%), Sun = 103°
 Cross-track uncertainty   : 57.3 mas = 605 km = 7.81 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL12
 Note                      : FP:true

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


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