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Stellar Occultation by (407) Arachne on 2023-09-21 (22:23:53 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] : 650929b0-c33f-11ef-5276-d914fe7e9987 [observed]

 Occultation Date + Time   : 2023-09-21 at 22:23:53 UT +/- 0.0 min  [1]
 Object Designation        : (407) Arachne
 Star Designation          : GDR3 3444459150286038400
 Star Coordinates (ICRF)   : RA = 05 41 49.8494, DE = +30 00 43.539  [2]
 Star Magnitudes           : G = 15.07 mag, RP = 13.97 mag, BP = 16.32 mag
 Object Magnitude          : V = 14.04 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 6.1 sec
 Object Mean Diameter      : 95.1 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 15.5 km/s
 Elongation to Moon & Sun  : 171° (sunlit = 41%), Sun = 93°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#72

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


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