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Stellar Occultation by (38312) 1999 RO107 on 2026-08-06 (22:29:16 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] : f7af1720-d9ae-11f1-43f3-cb06bdd77fef [observed]

 Occultation Date + Time   : 2026-08-06 at 22:29:16 UT +/- 0.09 min  [1]
 Object Designation        : (38312) 1999 RO107
 Star Designation          : GDR3 4124225239198601344
 Star Coordinates (ICRF)   : RA = 17 32 24.5018, DE = -17 41 16.071  [2]
 Star Magnitudes           : G = 12.29 mag, RP = 11.09 mag, BP = 13.83 mag
 Object Magnitude          : V = 19.38 mag
 Estimated Magnitude Drop  : 7.1 mag
 Estimated Max. Duration   : 1.7 sec
 Speed of the shadow       : 3.1 km/s
 Object Mean Diameter      : 5.3 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.1017 arcs/min @ PA = 278 deg
 Horizontal Parallax       : 3.5290 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 150° (sunlit = 41%), Sun = 129°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.34 path-width (1-sig)
 RUWE and duplicate source : 0.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL44
 Note                      : FP:true

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


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