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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3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : a9f81c94-84c2-4c93-9d2d-4ad85b39e6f2 [observed]
Occultation Date + Time : 2018-11-02 at 02:41:31 UT +/- 0.01 min [1]
Object Designation : (895) Helio
Orbit Class : MBA
Star Designation : GDR3 0582314900102905728
Star Coordinates (ICRF) : RA = 08 44 45.3376, DE = +04 44 40.871 [2]
Star Magnitudes : G = 13.12 mag, RP = 12.65 mag, BP = 13.42 mag
Object Magnitude : V = 13.73 mag
Estimated Magnitude Drop : 1.1 mag
Estimated Max. Duration : 6.6 sec
Object Mean Diameter : 142 km (src: astorb)
Speed of the shadow : 21.6 km/s
Elongation to Moon & Sun : 22° (sunlit = 34%), Sun = 87°
Cross-track uncertainty : 3.7 mas = 7 km = 0.05 path-width (1-sig)
RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#96
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0