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Stellar Occultation by (250769) 2005 SX279 on 2025-08-16 (21:59:27 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] : 44b10190-ddb7-11f0-547e-69a35fdd8b21 [observed]

 Occultation Date + Time   : 2025-08-16 at 21:59:27 UT +/- 0.12 min  [1]
 Object Designation        : (250769) 2005 SX279
 Star Designation          : GDR3 4215216590901371776
 Star Coordinates (ICRF)   : RA = 19 26 05.3759, DE = -00 53 47.072  [2]
 Star Magnitudes           : G = 11.96 mag, RP = 11.09 mag, BP = 12.76 mag
 Object Magnitude          : V = 20.59 mag
 Estimated Magnitude Drop  : 8.6 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 9.5 km/s
 Object Mean Diameter      : 2.1 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.3900 arcs/min @ PA = 224 deg
 Horizontal Parallax       : 4.3720 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 125° (sunlit = 42%), Sun = 143°
 Cross-track uncertainty   : 18.7 mas = 27 km = 12.99 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#34
 Note                      : FP:true

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


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