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Stellar Occultation by (159398) 1998 TN38 on 2025-08-27 (21:48:12 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] : 550cc7e0-ddb7-11f0-547e-f520ca7e1239 [observed]

 Occultation Date + Time   : 2025-08-27 at 21:48:12 UT +/- 0.07 min  [1]
 Object Designation        : (159398) 1998 TN38
 Star Designation          : GDR3 1733683340240041216
 Star Coordinates (ICRF)   : RA = 21 06 53.2231, DE = +05 56 43.060  [2]
 Star Magnitudes           : G = 13.56 mag, RP = 13.16 mag, BP = 13.82 mag
 Object Magnitude          : V = 19.56 mag
 Estimated Magnitude Drop  : 6.0 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 12.7 km/s
 Object Mean Diameter      : 2.9 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5633 arcs/min @ PA = 225 deg
 Horizontal Parallax       : 4.7270 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 113° (sunlit = 20%), Sun = 155°
 Cross-track uncertainty   : 22.0 mas = 29 km = 10.24 path-width (1-sig)
 RUWE and duplicate source : 3.3 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#33
 Note                      : FP:true

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


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