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] : a6dab39c-f2b7-4640-8d3f-20c638e79926 [observed]
Occultation Date + Time : 2020-01-18 at 18:35:47 UT +/- 0.03 min [1]
Object Designation : (51921) 2001 QU90
Orbit Class : MBA
Star Designation : GDR3 0115617981284520960
Star Coordinates (ICRF) : RA = 03 07 00.8461, DE = +27 05 17.347 [2]
Star Magnitudes : G = 12.79 mag, RP = 12.25 mag, BP = 13.16 mag
Object Magnitude : V = 17.14 mag
Estimated Magnitude Drop : 4.4 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 7 km (src: astorb)
Speed of the shadow : 15.1 km/s
Elongation to Moon & Sun : 164° (sunlit = 37%), Sun = 113°
Cross-track uncertainty : 2.3 mas = 2 km = 0.36 path-width (1-sig)
RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#39
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0