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] : 5da24bc9-56e2-434a-bea1-30ae483f3e38 [observed]
Occultation Date + Time : 2020-04-18 at 20:44:09 UT +/- 0.0 min [1]
Object Designation : (773) Irmintraud
Orbit Class : MBA
Star Designation : GDR3 0170604897091953024
Star Coordinates (ICRF) : RA = 04 07 01.7714, DE = +33 16 41.306 [2]
Star Magnitudes : G = 12.0 mag, RP = 11.6 mag, BP = 12.24 mag
Object Magnitude : V = 15.17 mag
Estimated Magnitude Drop : 3.2 mag
Estimated Max. Duration : 2.4 sec
Object Mean Diameter : 96 km (src: astorb)
Speed of the shadow : 40.0 km/s
Elongation to Moon & Sun : 84° (sunlit = 16%), Sun = 39°
Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#98
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0