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Stellar Occultation by (497003) 2002 UG78 on 2026-10-21 (21:52:08 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] : 7a73b4e0-d9b4-11f1-43f3-e7dff7bef765 [observed]

 Occultation Date + Time   : 2026-10-21 at 21:52:08 UT +/- 0.23 min  [1]
 Object Designation        : (497003) 2002 UG78
 Star Designation          : GDR3 0058498042983926400
 Star Coordinates (ICRF)   : RA = 03 32 06.0807, DE = +21 25 24.604  [2]
 Star Magnitudes           : G = 9.64 mag, RP = 8.91 mag, BP = 10.23 mag
 Object Magnitude          : V = 20.61 mag
 Estimated Magnitude Drop  : 11.0 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 9.6 km/s
 Object Mean Diameter      : 2.5 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.3433 arcs/min @ PA = 257 deg
 Horizontal Parallax       : 3.8090 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 81° (sunlit = 80%), Sun = 153°
 Cross-track uncertainty   : 43.3 mas = 72 km = 29.00 path-width (1-sig)
 RUWE and duplicate source : 1.13 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL19
 Note                      : FP:true

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


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