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Stellar Occultation by (930) Westphalia on 2024-10-20 (00:25:19 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] : 9713ed50-ddb5-11f0-547e-e28076fbaaaa [observed]

 Occultation Date + Time   : 2024-10-20 at 00:25:19 UT +/- 0.02 min  [1]
 Object Designation        : (930) Westphalia
 Star Designation          : GDR3 0252648053872412800
 Star Coordinates (ICRF)   : RA = 04 32 53.8577, DE = +43 49 46.447  [2]
 Star Magnitudes           : G = 12.84 mag, RP = 11.58 mag, BP = 12.53 mag
 Object Magnitude          : V = 15.41 mag
 Estimated Magnitude Drop  : 2.7 mag
 Estimated Max. Duration   : 4.6 sec
 Speed of the shadow       : 7.9 km/s
 Object Mean Diameter      : 36.5 km  (src: astorb) => apparent = 29 mas
 Apparent Motion           : 0.3800 arcs/min @ PA = 321 deg
 Horizontal Parallax       : 5.1290 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 20° (sunlit = 91%), Sun = 130°
 Cross-track uncertainty   : 3.7 mas = 4 km = 0.13 path-width (1-sig)
 RUWE and duplicate source : 28.51 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#86
 Note                      : FP:true

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


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