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Stellar Occultation by (296690) 2009 SM245 on 2023-12-22 (02:41:19 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] : 4a356370-ddb4-11f0-547e-310bee5f401e [observed]

 Occultation Date + Time   : 2023-12-22 at 02:41:19 UT +/- 0.07 min  [1]
 Object Designation        : (296690) 2009 SM245
 Star Designation          : GDR3 3443672754657571840
 Star Coordinates (ICRF)   : RA = 05 54 47.8623, DE = +29 25 44.881  [2]
 Star Magnitudes           : G = 11.86 mag, RP = 11.34 mag, BP = 12.21 mag
 Object Magnitude          : V = 20.02 mag
 Estimated Magnitude Drop  : 8.2 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 16.0 km/s
 Object Mean Diameter      : 6.4 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3567 arcs/min @ PA = 266 deg
 Horizontal Parallax       : 2.3760 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 59° (sunlit = 75%), Sun = 174°
 Cross-track uncertainty   : 23.3 mas = 62 km = 9.77 path-width (1-sig)
 RUWE and duplicate source : 2.87 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL26
 Note                      : FP:true

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


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