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Stellar Occultation by (10790) 1991 XS on 2023-12-23 (20:16:51 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] : 4c5c8930-ddb4-11f0-547e-e641efbf1e28 [observed]

 Occultation Date + Time   : 2023-12-23 at 20:16:51 UT +/- 0.0 min  [1]
 Object Designation        : (10790) 1991 XS
 Star Designation          : GDR3 3159738346531811968
 Star Coordinates (ICRF)   : RA = 07 08 17.9836, DE = +11 15 45.921  [2]
 Star Magnitudes           : G = 10.82 mag, RP = 9.89 mag, BP = 11.71 mag
 Object Magnitude          : V = 16.67 mag
 Estimated Magnitude Drop  : 5.9 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 9.2 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.5133 arcs/min @ PA = 257 deg
 Horizontal Parallax       : 5.1660 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 55° (sunlit = 89%), Sun = 161°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#61
 Note                      : FP:true

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


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