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Stellar Occultation by (386960) 2011 SL222 on 2026-09-07 (23:10:56 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] : be1d4710-d9af-11f1-43f3-b02f9f8d97e1 [observed]

 Occultation Date + Time   : 2026-09-07 at 23:10:56 UT +/- 0.13 min  [1]
 Object Designation        : (386960) 2011 SL222
 Star Designation          : GDR3 6891043166917643904
 Star Coordinates (ICRF)   : RA = 21 22 14.1001, DE = -12 24 59.706  [2]
 Star Magnitudes           : G = 11.6 mag, RP = 11.17 mag, BP = 11.87 mag
 Object Magnitude          : V = 20.2 mag
 Estimated Magnitude Drop  : 8.6 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 7.7 km/s
 Object Mean Diameter      : 2.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3600 arcs/min @ PA = 263 deg
 Horizontal Parallax       : 4.9630 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 164° (sunlit = 13%), Sun = 154°
 Cross-track uncertainty   : 30.3 mas = 38 km = 19.47 path-width (1-sig)
 RUWE and duplicate source : 1.23 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL22
 Note                      : FP:true

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


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