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Stellar Occultation by (129921) 1999 TF123 on 2024-07-30 (21:32:37 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] : 315d9100-ddb5-11f0-547e-daf9fdffb4a4 [observed]

 Occultation Date + Time   : 2024-07-30 at 21:32:37 UT +/- 0.09 min  [1]
 Object Designation        : (129921) 1999 TF123
 Star Designation          : GDR3 4077165557388153984
 Star Coordinates (ICRF)   : RA = 18 25 20.0719, DE = -25 12 44.086  [2]
 Star Magnitudes           : G = 13.88 mag, RP = 12.93 mag, BP = 14.8 mag
 Object Magnitude          : V = 20.08 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 7.2 km/s
 Object Mean Diameter      : 2.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3600 arcs/min @ PA = 264 deg
 Horizontal Parallax       : 5.3070 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 158° (sunlit = 21%), Sun = 147°
 Cross-track uncertainty   : 23.7 mas = 28 km = 14.24 path-width (1-sig)
 RUWE and duplicate source : 0.85 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL29
 Note                      : FP:true

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


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