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Stellar Occultation by (590) Tomyris on 2025-01-14 (23:39:46 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] : 0f439600-828a-11ef-6618-3805ef5e9697 [asteroids]

 Occultation Date + Time   : 2025-01-14 at 23:39:46 UT +/- 0.01 min  [1]
 Object Designation        : (590) Tomyris
 Star Designation          : GDR3 0689208973879210240
 Star Coordinates (ICRF)   : RA = 08 52 16.9385, DE = +23 08 05.834  [2]
 Star Magnitudes           : G = 10.8 mag, RP = 10.43 mag, BP = 11.01 mag
 Object Magnitude          : V = 14.13 mag
 Estimated Magnitude Drop  : 3.4 mag
 Estimated Max. Duration   : 3.3 sec
 Object Mean Diameter      : 40 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 12.1 km/s
 Elongation to Moon & Sun  : 2° (sunlit = 99%), Sun = 165°
 Cross-track uncertainty   : 0.8 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 4.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68

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


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