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Stellar Occultation by (4557) Mika on 2024-10-09 (03:17:42 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] : 7eb9f2e0-ddb5-11f0-547e-e7917faf5f60 [observed]

 Occultation Date + Time   : 2024-10-09 at 03:17:42 UT +/- 0.0 min  [1]
 Object Designation        : (4557) Mika
 Star Designation          : GDR3 3357254611047022976
 Star Coordinates (ICRF)   : RA = 06 28 57.2570, DE = +15 52 03.214  [2]
 Star Magnitudes           : G = 10.13 mag, RP = 9.64 mag, BP = 10.46 mag
 Object Magnitude          : V = 17.49 mag
 Estimated Magnitude Drop  : 7.4 mag
 Estimated Max. Duration   : 1.2 sec
 Speed of the shadow       : 11.2 km/s
 Object Mean Diameter      : 13.5 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.3500 arcs/min @ PA = 94 deg
 Horizontal Parallax       : 3.3180 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 164° (sunlit = 33%), Sun = 99°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 3.62 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#70
 Note                      : FP:true

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


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