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Stellar Occultation by (373510) 2001 NX18 on 2024-09-04 (18:36:48 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] : 53c98460-ddb5-11f0-547e-e9c2ce60bb21 [observed]

 Occultation Date + Time   : 2024-09-04 at 18:36:48 UT +/- 0.07 min  [1]
 Object Designation        : (373510) 2001 NX18
 Star Designation          : GDR3 2701568140383595136
 Star Coordinates (ICRF)   : RA = 21 39 03.3363, DE = +07 59 32.310  [2]
 Star Magnitudes           : G = 10.48 mag, RP = 9.68 mag, BP = 11.17 mag
 Object Magnitude          : V = 18.34 mag
 Estimated Magnitude Drop  : 7.9 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 7.2 km/s
 Object Mean Diameter      : 3.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4367 arcs/min @ PA = 242 deg
 Horizontal Parallax       : 6.4450 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 143° (sunlit = 3%), Sun = 156°
 Cross-track uncertainty   : 22.3 mas = 22 km = 7.12 path-width (1-sig)
 RUWE and duplicate source : 1.16 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL40
 Note                      : FP:true

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


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