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Stellar Occultation by (78186) 2002 NH38 on 2025-08-17 (22:24:42 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] : 470d6820-ddb7-11f0-547e-6c37bf9b5c6d [observed]

 Occultation Date + Time   : 2025-08-17 at 22:24:42 UT +/- 0.01 min  [1]
 Object Designation        : (78186) 2002 NH38
 Star Designation          : GDR3 4181475229047409664
 Star Coordinates (ICRF)   : RA = 19 28 54.7036, DE = -15 23 02.910  [2]
 Star Magnitudes           : G = 12.05 mag, RP = 11.31 mag, BP = 12.64 mag
 Object Magnitude          : V = 18.74 mag
 Estimated Magnitude Drop  : 6.7 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 8.7 km/s
 Object Mean Diameter      : 6.0 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.3117 arcs/min @ PA = 276 deg
 Horizontal Parallax       : 3.8310 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 144° (sunlit = 31%), Sun = 146°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.28 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#51
 Note                      : FP:true

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


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