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] : c93edf79-b113-49fe-8c97-7e75bd002366 [observed]
Occultation Date + Time : 2020-11-20 at 19:34:06 UT +/- 0.01 min [1]
Object Designation : (8778) 1931 TD3
Orbit Class : MBA
Star Designation : GDR3 0155202083511727616
Star Coordinates (ICRF) : RA = 04 49 50.2131, DE = +28 49 52.845 [2]
Star Magnitudes : G = 10.2 mag, RP = 9.7 mag, BP = 10.53 mag
Object Magnitude : V = 16.93 mag
Estimated Magnitude Drop : 6.7 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 7 km (src: astorb)
Speed of the shadow : 12.4 km/s
Elongation to Moon & Sun : 122° (sunlit = 36%), Sun = 163°
Cross-track uncertainty : 1.7 mas = 1 km = 0.28 path-width (1-sig)
RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#51
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0