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Stellar Occultation by (13) Egeria on 2024-12-13 (18:34:17 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] : bcb14a80-ddb5-11f0-547e-5ce8ffd9ee08 [observed]

 Occultation Date + Time   : 2024-12-13 at 18:34:17 UT +/- 0.01 min  [1]
 Object Designation        : (13) Egeria
 Star Designation          : GDR3 0176997805590240128
 Star Coordinates (ICRF)   : RA = 04 14 20.6845, DE = +35 39 41.341  [2]
 Star Magnitudes           : G = 11.15 mag, RP = 10.17 mag, BP = 12.12 mag
 Object Magnitude          : V = 10.22 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 18.7 sec
 Speed of the shadow       : 11.1 km/s
 Object Mean Diameter      : 207.6 km  (src: astorb) => apparent = 195 mas
 Apparent Motion           : 0.6250 arcs/min @ PA = 278 deg
 Horizontal Parallax       : 5.9820 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 12° (sunlit = 97%), Sun = 160°
 Cross-track uncertainty   : 3.3 mas = 3 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.58 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#129
 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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