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Stellar Occultation by (4489) Dracius on 2023-11-07 (20:40:38 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] : 3497f0f0-ddb4-11f0-547e-0a46d6f63206 [observed]

 Occultation Date + Time   : 2023-11-07 at 20:40:38 UT +/- 0.04 min  [1]
 Object Designation        : (4489) Dracius
 Star Designation          : GDR3 3397890464866839168
 Star Coordinates (ICRF)   : RA = 05 39 04.2510, DE = +19 00 38.022  [2]
 Star Magnitudes           : G = 11.27 mag, RP = 10.66 mag, BP = 11.7 mag
 Object Magnitude          : V = 16.09 mag
 Estimated Magnitude Drop  : 4.8 mag
 Estimated Max. Duration   : 8.3 sec
 Speed of the shadow       : 11.2 km/s
 Object Mean Diameter      : 92.9 km  (src: astorb) => apparent = 31 mas
 Apparent Motion           : 0.2267 arcs/min @ PA = 288 deg
 Horizontal Parallax       : 2.1510 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 78° (sunlit = 27%), Sun = 140°
 Cross-track uncertainty   : 3.4 mas = 10 km = 0.11 path-width (1-sig)
 RUWE and duplicate source : 5.35 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79
 Note                      : FP:true

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


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