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Stellar Occultation by (1618) Dawn on 2025-04-03 (22:41:08 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] : 475c2900-876a-11ef-78cd-f71bbaaffee6 [asteroids]

 Occultation Date + Time   : 2025-04-03 at 22:41:08 UT +/- 0.01 min  [1]
 Object Designation        : (1618) Dawn
 Star Designation          : GDR3 6328479146373425920
 Star Coordinates (ICRF)   : RA = 14 27 33.4303, DE = -09 42 44.790  [2]
 Star Magnitudes           : G = 12.35 mag, RP = 11.79 mag, BP = 12.74 mag
 Object Magnitude          : V = 15.43 mag
 Estimated Magnitude Drop  : 3.1 mag
 Estimated Max. Duration   : 2.1 sec
 Object Mean Diameter      : 19.6 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 9.4 km/s
 Elongation to Moon & Sun  : 127° (sunlit = 38%), Sun = 156°
 Cross-track uncertainty   : 0.8 mas = 1 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 2.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63

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


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