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Stellar Occultation by (1794) Finsen on 2026-08-04 (23:28:20 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] : dd63bee0-d9ac-11f1-43f3-0c673fc647e4 [observed]

 Occultation Date + Time   : 2026-08-04 at 23:28:20 UT +/- 0.01 min  [1]
 Object Designation        : (1794) Finsen
 Star Designation          : GDR3 4262234873534447104
 Star Coordinates (ICRF)   : RA = 19 10 21.0363, DE = -01 46 36.245  [2]
 Star Magnitudes           : G = 14.32 mag, RP = 13.43 mag, BP = 15.14 mag
 Object Magnitude          : V = 15.66 mag
 Estimated Magnitude Drop  : 1.6 mag
 Estimated Max. Duration   : 3.7 sec
 Speed of the shadow       : 10.2 km/s
 Object Mean Diameter      : 37.3 km  (src: astorb) => apparent = 24 mas
 Apparent Motion           : 0.3900 arcs/min @ PA = 248 deg
 Horizontal Parallax       : 4.0750 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 97° (sunlit = 62%), Sun = 149°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL75
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

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


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