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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5 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : a8d176e1-f424-4a6c-b039-ac5114b44af8 [observed]
Occultation Date + Time : 2018-12-09 at 23:18:08 UT +/- 0.01 min [1]
Object Designation : (1191) Alfaterna
Orbit Class : MBA
Star Designation : GDR3 3129338396215057920
Star Coordinates (ICRF) : RA = 06 51 53.8707, DE = +05 13 20.822 [2]
Star Magnitudes : G = 13.82 mag, RP = 12.93 mag, BP = 14.64 mag
Object Magnitude : V = 15.31 mag
Estimated Magnitude Drop : 1.7 mag
Estimated Max. Duration : 4.0 sec
Object Mean Diameter : 42 km (src: astorb)
Speed of the shadow : 10.6 km/s
Elongation to Moon & Sun : 163° (sunlit = 7%), Sun = 149°
Cross-track uncertainty : 1.3 mas = 1 km = 0.05 path-width (1-sig)
RUWE and duplicate source : 1.14 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