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Stellar Occultation by (166630) 2002 SW25 on 2023-04-30 (23:09:46 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] : 926e9310-ddb3-11f0-547e-55f9dd96f4ee [observed]

 Occultation Date + Time   : 2023-04-30 at 23:09:46 UT +/- 0.11 min  [1]
 Object Designation        : (166630) 2002 SW25
 Star Designation          : GDR3 4143273041135520128
 Star Coordinates (ICRF)   : RA = 17 13 25.6000, DE = -10 02 11.682  [2]
 Star Magnitudes           : G = 11.26 mag, RP = 10.61 mag, BP = 11.74 mag
 Object Magnitude          : V = 20.64 mag
 Estimated Magnitude Drop  : 9.4 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 8.6 km/s
 Object Mean Diameter      : 3.1 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2750 arcs/min @ PA = 301 deg
 Horizontal Parallax       : 3.3910 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 93° (sunlit = 78%), Sun = 140°
 Cross-track uncertainty   : 20.7 mas = 38 km = 12.56 path-width (1-sig)
 RUWE and duplicate source : 0.84 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#35
 Note                      : FP:true

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


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