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Stellar Occultation by (157401) 2004 TY240 on 2026-08-07 (20:29:13 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] : 253361d0-d9ad-11f1-43f3-74103fdea01b [observed]

 Occultation Date + Time   : 2026-08-07 at 20:29:13 UT +/- 0.02 min  [1]
 Object Designation        : (157401) 2004 TY240
 Star Designation          : GDR3 4300631228306312192
 Star Coordinates (ICRF)   : RA = 20 06 57.7933, DE = +11 02 27.790  [2]
 Star Magnitudes           : G = 11.88 mag, RP = 11.42 mag, BP = 12.18 mag
 Object Magnitude          : V = 19.95 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 13.9 km/s
 Object Mean Diameter      : 4.2 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4417 arcs/min @ PA = 251 deg
 Horizontal Parallax       : 3.3790 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 114° (sunlit = 30%), Sun = 148°
 Cross-track uncertainty   : 2.7 mas = 5 km = 1.21 path-width (1-sig)
 RUWE and duplicate source : 1.44 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL33
 Note                      : FP:true

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


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