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Stellar Occultation by (78677) 2002 TW128 on 2024-09-30 (19:35:40 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] : 7c3da840-ddb5-11f0-547e-c1adfff75f07 [observed]

 Occultation Date + Time   : 2024-09-30 at 19:35:40 UT +/- 0.01 min  [1]
 Object Designation        : (78677) 2002 TW128
 Star Designation          : GDR3 4089319039194129664
 Star Coordinates (ICRF)   : RA = 18 24 38.2571, DE = -23 57 23.095  [2]
 Star Magnitudes           : G = 12.26 mag, RP = 10.65 mag, BP = 16.06 mag
 Object Magnitude          : V = 20.37 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 17.8 km/s
 Object Mean Diameter      : 3.8 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5250 arcs/min @ PA = 79 deg
 Horizontal Parallax       : 3.1320 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 109° (sunlit = 3%), Sun = 87°
 Cross-track uncertainty   : 1.1 mas = 2 km = 0.59 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL47
 Note                      : FP:true

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


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