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Stellar Occultation by (76) Freia on 2023-06-20 (20:43:59 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] : 3bc16cc0-ddb0-11f0-547e-6ac8ebff9208 [observed]

 Occultation Date + Time   : 2023-06-20 at 20:43:59 UT +/- 0.01 min  [1]
 Object Designation        : (76) Freia
 Star Designation          : GDR3 4115918355770124032
 Star Coordinates (ICRF)   : RA = 17 19 33.9099, DE = -20 41 01.104  [2]
 Star Magnitudes           : G = 13.3 mag, RP = 12.47 mag, BP = 14.04 mag
 Object Magnitude          : V = 13.59 mag
 Estimated Magnitude Drop  : 0.9 mag
 Estimated Max. Duration   : 12.0 sec
 Speed of the shadow       : 15.3 km/s
 Object Mean Diameter      : 183.7 km  (src: astorb) => apparent = 86 mas
 Apparent Motion           : 0.4283 arcs/min @ PA = 274 deg
 Horizontal Parallax       : 2.9790 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 141° (sunlit = 7%), Sun = 171°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.89 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#97
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

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


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