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Stellar Occultation by (15636) 2000 JD31 on 2023-10-04 (20:20:22 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] : 1b924d30-ddb4-11f0-547e-1e3aa2feab25 [observed]

 Occultation Date + Time   : 2023-10-04 at 20:20:22 UT +/- 0.0 min  [1]
 Object Designation        : (15636) 2000 JD31
 Star Designation          : GDR3 4070618481100151552
 Star Coordinates (ICRF)   : RA = 17 55 21.1405, DE = -21 09 34.965  [2]
 Star Magnitudes           : G = 10.29 mag, RP = 9.36 mag, BP = 11.2 mag
 Object Magnitude          : V = 19.61 mag
 Estimated Magnitude Drop  : 9.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 22.1 km/s
 Object Mean Diameter      : 7.2 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5300 arcs/min @ PA = 89 deg
 Horizontal Parallax       : 2.5510 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 170° (sunlit = 67%), Sun = 78°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 0.86 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63
 Note                      : FP:true

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


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