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Stellar Occultation by (118815) 2000 SM108 on 2023-07-09 (01:21:20 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] : c4b053e0-ddb3-11f0-547e-fe36fcb7150a [observed]

 Occultation Date + Time   : 2023-07-09 at 01:21:20 UT +/- 0.13 min  [1]
 Object Designation        : (118815) 2000 SM108
 Star Designation          : GDR3 2602582407069054336
 Star Coordinates (ICRF)   : RA = 22 31 58.7036, DE = -11 14 14.066  [2]
 Star Magnitudes           : G = 13.62 mag, RP = 13.06 mag, BP = 14.02 mag
 Object Magnitude          : V = 18.98 mag
 Estimated Magnitude Drop  : 5.4 mag
 Estimated Max. Duration   : 2.8 sec
 Speed of the shadow       : 4.3 km/s
 Object Mean Diameter      : 12.0 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.0983 arcs/min @ PA = 244 deg
 Horizontal Parallax       : 2.3970 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 28° (sunlit = 62%), Sun = 131°
 Cross-track uncertainty   : 5.0 mas = 13 km = 1.11 path-width (1-sig)
 RUWE and duplicate source : 1.23 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#47
 Note                      : FP:true

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


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