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Stellar Occultation by (17979) 1999 JS55 on 2024-11-10 (01:48:05 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] : a121eea0-ddb5-11f0-547e-a2f1afe5dd33 [observed]

 Occultation Date + Time   : 2024-11-10 at 01:48:05 UT +/- 0.0 min  [1]
 Object Designation        : (17979) 1999 JS55
 Star Designation          : GDR3 3423381684181589760
 Star Coordinates (ICRF)   : RA = 06 05 17.2731, DE = +21 23 12.545  [2]
 Star Magnitudes           : G = 8.16 mag, RP = 7.45 mag, BP = 8.65 mag
 Object Magnitude          : V = 18.45 mag
 Estimated Magnitude Drop  : 10.3 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 7.3 km/s
 Object Mean Diameter      : 6.7 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.2700 arcs/min @ PA = 289 deg
 Horizontal Parallax       : 3.9400 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 122° (sunlit = 59%), Sun = 137°
 Cross-track uncertainty   : 0.6 mas = 0 km = 0.14 path-width (1-sig)
 RUWE and duplicate source : 2.52 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#61
 Note                      : FP:true

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


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