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] : 968e331a-4b81-4bb5-bea6-97fd7d09d073 [observed]
Occultation Date + Time : 2018-08-16 at 23:48:28 UT +/- 0.02 min [1]
Object Designation : (176) Iduna
Orbit Class : MBA
Star Designation : GDR3 4308452776091751552
Star Coordinates (ICRF) : RA = 19 28 25.2774, DE = +09 37 17.473 [2]
Star Magnitudes : G = 14.29 mag, RP = 13.18 mag, BP = 15.61 mag
Object Magnitude : V = 13.36 mag
Estimated Magnitude Drop : 0.4 mag
Estimated Max. Duration : 10.4 sec
Object Mean Diameter : 121 km (src: astorb)
Speed of the shadow : 11.6 km/s
Elongation to Moon & Sun : 77° (sunlit = 37%), Sun = 139°
Cross-track uncertainty : 1.3 mas = 2 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#74
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0