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Stellar Occultation by (1656) Suomi on 2025-09-06 (21:07:09 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] : 66117860-ddb7-11f0-547e-f4a15fb51c08 [observed]

 Occultation Date + Time   : 2025-09-06 at 21:07:09 UT +/- 0.02 min  [1]
 Object Designation        : (1656) Suomi
 Star Designation          : GDR3 4269388639810868608
 Star Coordinates (ICRF)   : RA = 19 08 27.4924, DE = +04 26 49.192  [2]
 Star Magnitudes           : G = 11.84 mag, RP = 11.24 mag, BP = 12.26 mag
 Object Magnitude          : V = 16.31 mag
 Estimated Magnitude Drop  : 4.5 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 13.4 km/s
 Object Mean Diameter      : 8.1 km  (src: astorb) => apparent = 8 mas
 Apparent Motion           : 0.8083 arcs/min @ PA = 170 deg
 Horizontal Parallax       : 6.4210 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 51° (sunlit = 99%), Sun = 121°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 0.84 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#70
 Note                      : FP:true

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


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