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Stellar Occultation by (420) Bertholda on 2024-09-17 (04:54:44 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] : a75ecd70-85a9-11ef-78cd-e1207fd8f464 [asteroids]

 Occultation Date + Time   : 2024-09-17 at 04:54:44 UT +/- 0.01 min  [1]
 Object Designation        : (420) Bertholda
 Star Designation          : GDR3 3373037486288078208
 Star Coordinates (ICRF)   : RA = 06 31 43.3751, DE = +21 11 37.598  [2]
 Star Magnitudes           : G = 14.94 mag, RP = 14.11 mag, BP = 15.65 mag
 Object Magnitude          : V = 14.55 mag
 Estimated Magnitude Drop  : 0.6 mag
 Estimated Max. Duration   : 6.4 sec
 Object Mean Diameter      : 141 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 22.0 km/s
 Elongation to Moon & Sun  : 115° (sunlit = 99%), Sun = 77°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#135

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


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