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Stellar Occultation by (70887) 1999 VY166 on 2026-08-17 (20:00:37 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] : 028dcb60-d9ae-11f1-43f3-1ffbdfaf21e6 [observed]

 Occultation Date + Time   : 2026-08-17 at 20:00:37 UT +/- 0.12 min  [1]
 Object Designation        : (70887) 1999 VY166
 Star Designation          : GDR3 4039049814247872896
 Star Coordinates (ICRF)   : RA = 18 04 57.6613, DE = -35 14 43.768  [2]
 Star Magnitudes           : G = 13.46 mag, RP = 12.62 mag, BP = 14.22 mag
 Object Magnitude          : V = 19.26 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 3.0 km/s
 Object Mean Diameter      : 2.8 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.1583 arcs/min @ PA = 43 deg
 Horizontal Parallax       : 5.5860 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 62° (sunlit = 28%), Sun = 125°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.82 path-width (1-sig)
 RUWE and duplicate source : 0.82 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL43
 Note                      : FP:true

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


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