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Stellar Occultation by (4293) Masumi on 2025-11-25 (23:50:43 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] : cd3b4560-ddb8-11f0-547e-4e75ff3d330a [observed]

 Occultation Date + Time   : 2025-11-25 at 23:50:43 UT +/- 0.01 min  [1]
 Object Designation        : (4293) Masumi
 Star Designation          : GDR3 3443577749986577024
 Star Coordinates (ICRF)   : RA = 05 55 29.5066, DE = +29 01 22.283  [2]
 Star Magnitudes           : G = 13.96 mag, RP = 13.14 mag, BP = 14.66 mag
 Object Magnitude          : V = 15.23 mag
 Estimated Magnitude Drop  : 1.6 mag
 Estimated Max. Duration   : 1.6 sec
 Speed of the shadow       : 7.0 km/s
 Object Mean Diameter      : 11.4 km  (src: astorb) => apparent = 13 mas
 Apparent Motion           : 0.4683 arcs/min @ PA = 307 deg
 Horizontal Parallax       : 7.0810 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 142° (sunlit = 27%), Sun = 154°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63
 Note                      : FP:true

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


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