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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2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 349c1dde-893a-4f75-9615-7ae179a21beb [observed]
Occultation Date + Time : 2017-12-25 at 18:53:46 UT +/- 0.05 min [1]
Object Designation : (141) Lumen
Orbit Class : MBA
Star Designation : GDR3 0193657468336100096
Star Coordinates (ICRF) : RA = 05 26 35.4498, DE = +38 51 05.055 [2]
Star Magnitudes : G = 12.67 mag, RP = 12.17 mag, BP = 13.02 mag
Object Magnitude : V = 11.62 mag
Estimated Magnitude Drop : 0.4 mag
Estimated Max. Duration : 12.5 sec
Object Mean Diameter : 131 km (src: astorb)
Speed of the shadow : 10.5 km/s
Elongation to Moon & Sun : 87° (sunlit = 44%), Sun = 161°
Cross-track uncertainty : 2.7 mas = 2 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 3.96 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#93
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0