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Stellar Occultation by (31020) Skarupa on 2023-10-01 (20:54:35 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] : 18216960-ddb4-11f0-547e-c6c1dffa8278 [observed]

 Occultation Date + Time   : 2023-10-01 at 20:54:35 UT +/- 0.02 min  [1]
 Object Designation        : (31020) Skarupa
 Star Designation          : GDR3 6839756863652358912
 Star Coordinates (ICRF)   : RA = 22 03 11.6636, DE = -13 52 37.381  [2]
 Star Magnitudes           : G = 13.32 mag, RP = 12.83 mag, BP = 13.64 mag
 Object Magnitude          : V = 19.78 mag
 Estimated Magnitude Drop  : 6.5 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 9.2 km/s
 Object Mean Diameter      : 7.8 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2117 arcs/min @ PA = 258 deg
 Horizontal Parallax       : 2.4510 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 74° (sunlit = 92%), Sun = 140°
 Cross-track uncertainty   : 1.7 mas = 4 km = 0.57 path-width (1-sig)
 RUWE and duplicate source : 3.5 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#52
 Note                      : FP:true

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


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