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: sodis
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 8f4cc009-b4be-4c45-bd5b-f7dcfd576f0e [observed]
Occultation Date + Time : 2023-08-24 at 19:22:16 UT +/- 0.11 min [1]
Object Designation : (82781) 2001 QX18
Orbit Class : MBA
Star Designation : GDR3 6871776360245187072
Star Coordinates (ICRF) : RA = 19 43 04.6227, DE = -16 40 57.970 [2]
Star Magnitudes : G = 13.54 mag, RP = 13.0 mag, BP = 13.92 mag
Object Magnitude : V = 19.61 mag
Estimated Magnitude Drop : 6.1 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 4 km (src: astorb)
Speed of the shadow : 8.1 km/s
Elongation to Moon & Sun : 49° (sunlit = 54%), Sun = 143°
Cross-track uncertainty : 20.3 mas = 34 km = 8.23 path-width (1-sig)
RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#42
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0