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Stellar Occultation by (38312) 1999 RO107 on 2026-09-14 (19:38:25 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] : 7291df30-d9b0-11f1-43f3-76c5ff3b1fc7 [observed]

 Occultation Date + Time   : 2026-09-14 at 19:38:25 UT +/- 0.02 min  [1]
 Object Designation        : (38312) 1999 RO107
 Star Designation          : GDR3 4123632430650822912
 Star Coordinates (ICRF)   : RA = 17 41 58.4610, DE = -17 50 54.078  [2]
 Star Magnitudes           : G = 13.88 mag, RP = 12.71 mag, BP = 15.31 mag
 Object Magnitude          : V = 19.88 mag
 Estimated Magnitude Drop  : 6.0 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 13.4 km/s
 Object Mean Diameter      : 5.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3750 arcs/min @ PA = 94 deg
 Horizontal Parallax       : 2.9680 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 50° (sunlit = 15%), Sun = 94°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.28 path-width (1-sig)
 RUWE and duplicate source : 1.09 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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