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Stellar Occultation by (28303) 1999 CY72 on 2025-08-17 (22:45:50 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] : 5f3778f0-ddb7-11f0-547e-64d4ffe59f47 [observed]

 Occultation Date + Time   : 2025-08-17 at 22:45:50 UT +/- 0.01 min  [1]
 Object Designation        : (28303) 1999 CY72
 Star Designation          : GDR3 4086989796855861632
 Star Coordinates (ICRF)   : RA = 18 56 13.9466, DE = -17 19 32.881  [2]
 Star Magnitudes           : G = 13.59 mag, RP = 13.03 mag, BP = 13.96 mag
 Object Magnitude          : V = 17.8 mag
 Estimated Magnitude Drop  : 4.2 mag
 Estimated Max. Duration   : 1.4 sec
 Speed of the shadow       : 4.2 km/s
 Object Mean Diameter      : 5.9 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.2050 arcs/min @ PA = 293 deg
 Horizontal Parallax       : 5.2670 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 152° (sunlit = 31%), Sun = 138°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.14 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#62
 Note                      : FP:true

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


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