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] : 586e3086-004b-4067-8d54-4a66fda77a5f [observed]
Occultation Date + Time : 2020-07-11 at 23:24:53 UT +/- 0.03 min [1]
Object Designation : (2684) Douglas
Orbit Class : MBA
Star Designation : GDR3 4106395730439420416
Star Coordinates (ICRF) : RA = 18 40 43.2252, DE = -11 56 48.205 [2]
Star Magnitudes : G = 13.19 mag, RP = 11.98 mag, BP = 14.83 mag
Object Magnitude : V = 16.04 mag
Estimated Magnitude Drop : 2.9 mag
Estimated Max. Duration : 1.3 sec
Object Mean Diameter : 14 km (src: astorb)
Speed of the shadow : 11.5 km/s
Elongation to Moon & Sun : 90° (sunlit = 60%), Sun = 165°
Cross-track uncertainty : 0.7 mas = 0 km = 0.07 path-width (1-sig)
RUWE and duplicate source : 0.83 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#61
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0