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Stellar Occultation by (407) Arachne on 2025-02-26 (00:20:54 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] : 9c5869c0-85a6-11ef-78cd-ea5ceadb7af5 [asteroids]

 Occultation Date + Time   : 2025-02-26 at 00:20:54 UT +/- 0.01 min  [1]
 Object Designation        : (407) Arachne
 Star Designation          : GDR3 3576023584928515200
 Star Coordinates (ICRF)   : RA = 12 24 47.7282, DE = -13 30 27.518  [2]
 Star Magnitudes           : G = 10.13 mag, RP = 9.43 mag, BP = 10.68 mag
 Object Magnitude          : V = 13.56 mag
 Estimated Magnitude Drop  : 3.5 mag
 Estimated Max. Duration   : 11.0 sec
 Object Mean Diameter      : 95.1 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 8.7 km/s
 Elongation to Moon & Sun  : 118° (sunlit = 5%), Sun = 145°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#71

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


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