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] : 3694e3d1-d80c-478b-82ef-cdedb93f9129 [observed]
Occultation Date + Time : 2022-01-05 at 19:34:19 UT +/- 0.02 min [1]
Object Designation : (4327) Ries
Orbit Class : MBA
Star Designation : GDR3 0811220026867098624
Star Coordinates (ICRF) : RA = 09 28 40.5376, DE = +37 23 52.043 [2]
Star Magnitudes : G = 9.2 mag, RP = 8.52 mag, BP = 9.71 mag
Object Magnitude : V = 17.02 mag
Estimated Magnitude Drop : 7.8 mag
Estimated Max. Duration : 1.1 sec
Object Mean Diameter : 15 km (src: astorb)
Speed of the shadow : 13.9 km/s
Elongation to Moon & Sun : 158° (sunlit = 13%), Sun = 146°
Cross-track uncertainty : 1.7 mas = 2 km = 0.20 path-width (1-sig)
RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#64
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0