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Stellar Occultation by (131) Vala on 2023-11-13 (02:50:22 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] : 4ab213e7-12b7-4e39-a2ef-dfeafde87121 [observed]

 Occultation Date + Time   : 2023-11-13 at 02:50:22 UT +/- 0.01 min  [1]
 Object Designation        : (131) Vala
 Star Designation          : GDR3 0621097595792108416
 Star Coordinates (ICRF)   : RA = 09 46 55.9210, DE = +17 55 00.289  [2]
 Star Magnitudes           : G = 12.86 mag, RP = 12.35 mag, BP = 13.2 mag
 Object Magnitude          : V = 14.93 mag
 Estimated Magnitude Drop  : 2.2 mag
 Estimated Max. Duration   : 2.1 sec
 Object Mean Diameter      : 40.4 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 18.9 km/s
 Elongation to Moon & Sun  : 84° (sunlit = 0%), Sun = 88°
 Cross-track uncertainty   : 2.0 mas = 3 km = 0.08 path-width (1-sig)
 RUWE and duplicate source : 1.61 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#94

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


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