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] : 8aaf2d4e-c44f-4560-978a-9a9454648d67 [observed]
Occultation Date + Time : 2021-05-27 at 01:22:32 UT +/- 0.01 min [1]
Object Designation : (895) Helio
Orbit Class : MBA
Star Designation : GDR3 4066655325765309440
Star Coordinates (ICRF) : RA = 18 13 10.3335, DE = -22 42 55.218 [2]
Star Magnitudes : G = 14.67 mag, RP = 13.1 mag, BP = 18.69 mag
Object Magnitude : V = 13.89 mag
Estimated Magnitude Drop : 0.4 mag
Estimated Max. Duration : 9.7 sec
Object Mean Diameter : 142 km (src: astorb)
Speed of the shadow : 14.6 km/s
Elongation to Moon & Sun : 19° (sunlit = 99%), Sun = 153°
Cross-track uncertainty : 2.3 mas = 4 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.14 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