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] : 28f0b1e8-1c58-4982-bf3c-3bf09f185193 [observed]
Occultation Date + Time : 2018-12-30 at 23:11:01 UT +/- 0.02 min [1]
Object Designation : (987) Wallia
Orbit Class : MBA
Star Designation : GDR3 0666389709556628096
Star Coordinates (ICRF) : RA = 08 34 24.0677, DE = +23 52 10.616 [2]
Star Magnitudes : G = 14.25 mag, RP = 13.74 mag, BP = 14.59 mag
Object Magnitude : V = 15.19 mag
Estimated Magnitude Drop : 1.3 mag
Estimated Max. Duration : 3.2 sec
Object Mean Diameter : 44 km (src: astorb)
Speed of the shadow : 13.6 km/s
Elongation to Moon & Sun : 83° (sunlit = 33%), Sun = 154°
Cross-track uncertainty : 3.0 mas = 5 km = 0.13 path-width (1-sig)
RUWE and duplicate source : 1.17 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#62
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0