UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0
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Map with groundtrack and observer stations
Event Details
Occultation UUID [and DB] : 3d972ea0-85a9-11ef-78cd-f8d5effee179 [asteroids]
Occultation Date + Time : 2025-09-17 at 18:45:20 UT +/- 0.01 min [1]
Object Designation : (418) Alemannia
Orbit Class : MBA
Star Designation : GDR3 4099882494079529344
Star Coordinates (ICRF) : RA = 18 39 36.4870, DE = -16 19 15.856 [2]
Star Magnitudes : G = 13.37 mag, RP = 12.42 mag, BP = 14.29 mag
Object Magnitude : V = 14.36 mag
Estimated Magnitude Drop : 1.4 mag
Estimated Max. Duration : 3.5 sec
Object Mean Diameter : 34.1 km (src: astorb)
Speed of the shadow : 9.8 km/s
Elongation to Moon & Sun : 150° (sunlit = 16%), Sun = 104°
Cross-track uncertainty : 0.7 mas = 1 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#103
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
