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: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 4d8f1ab2-13f6-4ccf-a9c1-9e49363b52b0 [observed]
Occultation Date + Time : 2021-11-10 at 05:15:16 UT +/- 0.03 min [1]
Object Designation : (106) Dione
Orbit Class : MBA
Star Designation : GDR3 3418482496588681344
Star Coordinates (ICRF) : RA = 05 07 01.7062, DE = +23 31 42.447 [2]
Star Magnitudes : G = 13.5 mag, RP = 12.86 mag, BP = 13.97 mag
Object Magnitude : V = 12.01 mag
Estimated Magnitude Drop : 0.2 mag
Estimated Max. Duration : 18.6 sec
Object Mean Diameter : 147 km (src: astorb)
Speed of the shadow : 7.9 km/s
Elongation to Moon & Sun : 136° (sunlit = 36%), Sun = 150°
Cross-track uncertainty : 2.3 mas = 3 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#141
Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0