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Stellar Occultation by (58166) 1990 OF3 on 2024-10-20 (20:00:44 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] : 90904b40-ddb5-11f0-547e-41dfffed4d62 [observed]

 Occultation Date + Time   : 2024-10-20 at 20:00:44 UT +/- 0.03 min  [1]
 Object Designation        : (58166) 1990 OF3
 Star Designation          : GDR3 0176240856256102912
 Star Coordinates (ICRF)   : RA = 04 26 15.1709, DE = +34 42 55.909  [2]
 Star Magnitudes           : G = 8.2 mag, RP = 7.73 mag, BP = 8.46 mag
 Object Magnitude          : V = 18.98 mag
 Estimated Magnitude Drop  : 10.8 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 6.5 km/s
 Object Mean Diameter      : 4.7 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2600 arcs/min @ PA = 270 deg
 Horizontal Parallax       : 4.2700 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 9° (sunlit = 85%), Sun = 136°
 Cross-track uncertainty   : 2.7 mas = 4 km = 0.86 path-width (1-sig)
 RUWE and duplicate source : 2.61 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL49
 Note                      : FP:true

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


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