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Stellar Occultation by (332) Siri on 2025-01-27 (17:48:03 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] : dd5e4340-858d-11ef-78cd-8eabffefb6f2 [asteroids]

 Occultation Date + Time   : 2025-01-27 at 17:48:03 UT +/- 0.01 min  [1]
 Object Designation        : (332) Siri
 Star Designation          : GDR3 3433240210375819136
 Star Coordinates (ICRF)   : RA = 06 11 56.2640, DE = +27 14 19.738  [2]
 Star Magnitudes           : G = 12.61 mag, RP = 12.07 mag, BP = 12.98 mag
 Object Magnitude          : V = 14.33 mag
 Estimated Magnitude Drop  : 1.9 mag
 Estimated Max. Duration   : 4.9 sec
 Object Mean Diameter      : 40.4 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 8.2 km/s
 Elongation to Moon & Sun  : 167° (sunlit = 4%), Sun = 144°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#69

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


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