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Stellar Occultation by (2908) Shimoyama on 2026-05-28 (00:29:22 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] : 5a1c1a90-3408-11f1-6999-affe97ffa181 [asteroids]

 Occultation Date + Time   : 2026-05-28 at 00:29:22 UT +/- 0.0 min  [1]
 Object Designation        : (2908) Shimoyama
 Star Designation          : GDR3 4148814751585210112
 Star Coordinates (ICRF)   : RA = 17 54 36.0115, DE = -14 10 52.784  [2]
 Star Magnitudes           : G = 14.07 mag, RP = 13.02 mag, BP = 15.19 mag
 Object Magnitude          : V = 16.76 mag
 Estimated Magnitude Drop  : 2.8 mag
 Estimated Max. Duration   : 2.4 sec
 Speed of the shadow       : 12.3 km/s
 Object Mean Diameter      : 29.4 km  (src: astorb) => apparent = 18 mas
 Apparent Motion           : 0.4550 arcs/min @ PA = 294 deg
 Horizontal Parallax       : 3.9440 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 60° (sunlit = 90%), Sun = 156°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67
 Note                      : FP:true

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


More Data and Informations
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