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Stellar Occultation by (407) Arachne on 2023-11-25 (19:23:28 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] : dbff4e50-ddb0-11f0-547e-ebb6f3fade15 [observed]

 Occultation Date + Time   : 2023-11-25 at 19:23:28 UT +/- 0.01 min  [1]
 Object Designation        : (407) Arachne
 Star Designation          : GDR3 3443978762488152192
 Star Coordinates (ICRF)   : RA = 05 51 33.5025, DE = +30 24 35.621  [2]
 Star Magnitudes           : G = 12.36 mag, RP = 11.45 mag, BP = 13.22 mag
 Object Magnitude          : V = 12.84 mag
 Estimated Magnitude Drop  : 1.0 mag
 Estimated Max. Duration   : 10.5 sec
 Speed of the shadow       : 9.0 km/s
 Object Mean Diameter      : 95.1 km  (src: astorb) => apparent = 82 mas
 Apparent Motion           : 0.4650 arcs/min @ PA = 263 deg
 Horizontal Parallax       : 5.4780 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 45° (sunlit = 97%), Sun = 154°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#78
 Note                      : FP:true

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


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