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Stellar Occultation by (40202) 1998 SN26 on 2025-10-07 (19:47:44 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] : 8773f590-ddb8-11f0-547e-35cc6efeba36 [observed]

 Occultation Date + Time   : 2025-10-07 at 19:47:44 UT +/- 0.02 min  [1]
 Object Designation        : (40202) 1998 SN26
 Star Designation          : GDR3 6860534060008071936
 Star Coordinates (ICRF)   : RA = 20 20 46.3218, DE = -19 18 20.838  [2]
 Star Magnitudes           : G = 12.41 mag, RP = 11.72 mag, BP = 12.95 mag
 Object Magnitude          : V = 19.38 mag
 Estimated Magnitude Drop  : 7.0 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 7.9 km/s
 Object Mean Diameter      : 5.3 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2583 arcs/min @ PA = 66 deg
 Horizontal Parallax       : 3.4870 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 81° (sunlit = 99%), Sun = 108°
 Cross-track uncertainty   : 1.3 mas = 2 km = 0.45 path-width (1-sig)
 RUWE and duplicate source : 0.92 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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