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Stellar Occultation by (1638) Ruanda on 2026-05-04 (22:55:21 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] : 085b1a50-33ed-11f1-6999-7527f65f48cc [asteroids]

 Occultation Date + Time   : 2026-05-04 at 22:55:21 UT +/- 0.01 min  [1]
 Object Designation        : (1638) Ruanda
 Star Designation          : GDR3 6299931495189681536
 Star Coordinates (ICRF)   : RA = 14 19 25.8520, DE = -13 44 46.203  [2]
 Star Magnitudes           : G = 10.82 mag, RP = 10.28 mag, BP = 11.03 mag
 Object Magnitude          : V = 14.68 mag
 Estimated Magnitude Drop  : 3.9 mag
 Estimated Max. Duration   : 1.6 sec
 Speed of the shadow       : 9.9 km/s
 Object Mean Diameter      : 16.2 km  (src: astorb) => apparent = 15 mas
 Apparent Motion           : 0.5600 arcs/min @ PA = 290 deg
 Horizontal Parallax       : 6.0340 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 43° (sunlit = 91%), Sun = 173°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#75
 Note                      : FP:true

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


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