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Stellar Occultation by (72809) 2001 GW5 on 2023-09-24 (17:49:08 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] : 312d9cd0-ddb4-11f0-547e-8090dfd9a760 [observed]

 Occultation Date + Time   : 2023-09-24 at 17:49:08 UT +/- 0.01 min  [1]
 Object Designation        : (72809) 2001 GW5
 Star Designation          : GDR3 4240341977786408704
 Star Coordinates (ICRF)   : RA = 19 56 52.9499, DE = +01 14 55.204  [2]
 Star Magnitudes           : G = 11.98 mag, RP = 11.55 mag, BP = 12.25 mag
 Object Magnitude          : V = 18.37 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 14.5 km/s
 Object Mean Diameter      : 5.4 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.6450 arcs/min @ PA = 161 deg
 Horizontal Parallax       : 4.7220 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 27° (sunlit = 71%), Sun = 118°
 Cross-track uncertainty   : 0.6 mas = 0 km = 0.15 path-width (1-sig)
 RUWE and duplicate source : 5.27 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#54
 Note                      : FP:true

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


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