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] : b6f2bf9b-d108-4965-8817-af675004a978 [observed]
Occultation Date + Time : 2020-12-09 at 05:20:26 UT +/- 0.0 min [1]
Object Designation : (498) Tokio
Orbit Class : MBA
Star Designation : GDR3 3899830377783484672
Star Coordinates (ICRF) : RA = 12 02 58.1014, DE = +08 49 08.833 [2]
Star Magnitudes : G = 9.5 mag, RP = 8.77 mag, BP = 10.1 mag
Object Magnitude : V = 14.93 mag
Estimated Magnitude Drop : 5.4 mag
Estimated Max. Duration : 4.3 sec
Object Mean Diameter : 83 km (src: astorb)
Speed of the shadow : 19.5 km/s
Elongation to Moon & Sun : 7° (sunlit = 37%), Sun = 81°
Cross-track uncertainty : 1.0 mas = 2 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#100
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0