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] : 01a75e39-36fe-4e61-ae3f-8059068fddff [observed]
Occultation Date + Time : 2018-08-01 at 00:35:26 UT +/- 0.01 min [1]
Object Designation : (5166) Olson
Orbit Class : MBA
Star Designation : GDR3 6882981861196759936
Star Coordinates (ICRF) : RA = 20 50 32.5456, DE = -17 05 42.256 [2]
Star Magnitudes : G = 11.02 mag, RP = 10.17 mag, BP = 11.77 mag
Object Magnitude : V = 16.52 mag
Estimated Magnitude Drop : 5.5 mag
Estimated Max. Duration : 0.6 sec
Object Mean Diameter : 6 km (src: astorb)
Speed of the shadow : 10.7 km/s
Elongation to Moon & Sun : 45° (sunlit = 85%), Sun = 178°
Cross-track uncertainty : 1.7 mas = 1 km = 0.29 path-width (1-sig)
RUWE and duplicate source : 1.12 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#58
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0