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Stellar Occultation by (174353) 2002 TT257 on 2025-12-30 (23:45:58 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] : 2c81cff0-d997-11f1-43f3-30d3f7cf1ad2 [observed]

 Occultation Date + Time   : 2025-12-30 at 23:45:58 UT +/- 0.05 min  [1]
 Object Designation        : (174353) 2002 TT257
 Star Designation          : GDR3 3435259394761495168
 Star Coordinates (ICRF)   : RA = 06 28 13.3031, DE = +29 52 43.178  [2]
 Star Magnitudes           : G = 12.28 mag, RP = 11.54 mag, BP = 12.87 mag
 Object Magnitude          : V = 18.94 mag
 Estimated Magnitude Drop  : 6.7 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 2.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5900 arcs/min @ PA = 282 deg
 Horizontal Parallax       : 5.9550 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 44° (sunlit = 84%), Sun = 173°
 Cross-track uncertainty   : 21.0 mas = 22 km = 9.78 path-width (1-sig)
 RUWE and duplicate source : 1.09 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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