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Stellar Occultation by (201817) 2003 YG17 on 2025-12-31 (22:23:21 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] : 44fbd580-d997-11f1-43f3-015aff7df625 [observed]

 Occultation Date + Time   : 2025-12-31 at 22:23:21 UT +/- 0.03 min  [1]
 Object Designation        : (201817) 2003 YG17
 Star Designation          : GDR3 3394080627012712192
 Star Coordinates (ICRF)   : RA = 05 21 33.9658, DE = +16 18 07.816  [2]
 Star Magnitudes           : G = 13.51 mag, RP = 12.86 mag, BP = 13.8 mag
 Object Magnitude          : V = 18.89 mag
 Estimated Magnitude Drop  : 5.4 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.1 km/s
 Object Mean Diameter      : 3.0 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.6217 arcs/min @ PA = 303 deg
 Horizontal Parallax       : 5.4630 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 19° (sunlit = 91%), Sun = 159°
 Cross-track uncertainty   : 6.4 mas = 7 km = 2.49 path-width (1-sig)
 RUWE and duplicate source : 10.79 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL38
 Note                      : FP:true

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


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