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Stellar Occultation by (917) Lyka on 2023-05-03 (21:12:17 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] : 97c35210-ddb3-11f0-547e-dac4ffbba1ed [observed]

 Occultation Date + Time   : 2023-05-03 at 21:12:17 UT +/- 0.0 min  [1]
 Object Designation        : (917) Lyka
 Star Designation          : GDR3 3432935031477483520
 Star Coordinates (ICRF)   : RA = 06 18 01.9359, DE = +26 44 50.135  [2]
 Star Magnitudes           : G = 12.52 mag, RP = 12.07 mag, BP = 12.8 mag
 Object Magnitude          : V = 17.19 mag
 Estimated Magnitude Drop  : 4.7 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 35.6 km/s
 Object Mean Diameter      : 28.1 km  (src: astorb) => apparent = 12 mas
 Apparent Motion           : 0.9450 arcs/min @ PA = 95 deg
 Horizontal Parallax       : 2.8190 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 106° (sunlit = 96%), Sun = 51°
 Cross-track uncertainty   : 0.1 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.24 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#73
 Note                      : FP:true

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


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