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Stellar Occultation by (164686) 1997 MW5 on 2025-08-12 (21:48:19 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] : 39ae8e20-ddb7-11f0-547e-72feb763804b [observed]

 Occultation Date + Time   : 2025-08-12 at 21:48:19 UT +/- 0.1 min  [1]
 Object Designation        : (164686) 1997 MW5
 Star Designation          : GDR3 4203800980145377536
 Star Coordinates (ICRF)   : RA = 18 59 17.7651, DE = -08 08 50.496  [2]
 Star Magnitudes           : G = 11.24 mag, RP = 10.72 mag, BP = 11.58 mag
 Object Magnitude          : V = 20.51 mag
 Estimated Magnitude Drop  : 9.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 8.8 km/s
 Object Mean Diameter      : 2.4 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3450 arcs/min @ PA = 242 deg
 Horizontal Parallax       : 4.1890 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 81° (sunlit = 85%), Sun = 142°
 Cross-track uncertainty   : 25.7 mas = 39 km = 16.30 path-width (1-sig)
 RUWE and duplicate source : 0.63 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#31
 Note                      : FP:true

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


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