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Stellar Occultation by (41309) 1999 XT157 on 2024-07-19 (00:40:10 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] : 27713ce0-c34f-11ef-5276-82e36f7f1a21 [observed]

 Occultation Date + Time   : 2024-07-19 at 00:40:10 UT +/- 0.0 min  [1]
 Object Designation        : (41309) 1999 XT157
 Star Designation          : GDR3 4102591179670055936
 Star Coordinates (ICRF)   : RA = 18 51 04.9317, DE = -13 13 40.840  [2]
 Star Magnitudes           : G = 14.18 mag, RP = 13.2 mag, BP = 15.15 mag
 Object Magnitude          : V = 18.34 mag
 Estimated Magnitude Drop  : 4.2 mag
 Estimated Max. Duration   : 0.5 sec
 Object Mean Diameter      : 5.7 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 11.7 km/s
 Elongation to Moon & Sun  : 22° (sunlit = 93%), Sun = 163°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.18 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#45

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


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