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Stellar Occultation by (393707) 2004 TH172 on 2026-08-26 (20:45:58 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] : d6f8c300-d9ae-11f1-43f3-8521bfdde478 [observed]

 Occultation Date + Time   : 2026-08-26 at 20:45:58 UT +/- 0.27 min  [1]
 Object Designation        : (393707) 2004 TH172
 Star Designation          : GDR3 4478826122878524672
 Star Coordinates (ICRF)   : RA = 18 22 25.8813, DE = +09 26 12.698  [2]
 Star Magnitudes           : G = 10.99 mag, RP = 10.19 mag, BP = 11.68 mag
 Object Magnitude          : V = 19.54 mag
 Estimated Magnitude Drop  : 8.6 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 6.1 km/s
 Object Mean Diameter      : 2.7 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2967 arcs/min @ PA = 152 deg
 Horizontal Parallax       : 5.2150 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 52° (sunlit = 98%), Sun = 117°
 Cross-track uncertainty   : 18.3 mas = 22 km = 8.29 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL35
 Note                      : FP:true

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


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