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Stellar Occultation by (85463) 1997 JR1 on 2026-08-07 (21:36:29 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] : 1cea4200-d9ad-11f1-43f3-3ca6fa9e17e0 [observed]

 Occultation Date + Time   : 2026-08-07 at 21:36:29 UT +/- 0.11 min  [1]
 Object Designation        : (85463) 1997 JR1
 Star Designation          : GDR3 4091169624685345152
 Star Coordinates (ICRF)   : RA = 18 23 45.5118, DE = -20 59 37.699  [2]
 Star Magnitudes           : G = 15.68 mag, RP = 14.73 mag, BP = 16.15 mag
 Object Magnitude          : V = 19.3 mag
 Estimated Magnitude Drop  : 3.7 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 4.2 km/s
 Object Mean Diameter      : 3.6 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.1817 arcs/min @ PA = 254 deg
 Horizontal Parallax       : 4.5540 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 153° (sunlit = 30%), Sun = 140°
 Cross-track uncertainty   : 1.8 mas = 2 km = 0.70 path-width (1-sig)
 RUWE and duplicate source : 3.58 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL47
 Note                      : FP:true

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


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