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] : f5476993-f942-43b3-abd4-1481c1f3bb96 [observed]
Occultation Date + Time : 2020-07-19 at 19:50:50 UT +/- 0.01 min [1]
Object Designation : (1646) Rosseland
Orbit Class : MBA
Star Designation : GDR3 4134954651594623360
Star Coordinates (ICRF) : RA = 17 19 39.7135, DE = -17 29 24.728 [2]
Star Magnitudes : G = 15.85 mag, RP = 14.96 mag, BP = 16.46 mag
Object Magnitude : V = 15.98 mag
Estimated Magnitude Drop : 0.8 mag
Estimated Max. Duration : 1.7 sec
Object Mean Diameter : 13 km (src: astorb)
Speed of the shadow : 7.3 km/s
Elongation to Moon & Sun : 153° (sunlit = 1%), Sun = 142°
Cross-track uncertainty : 0.8 mas = 0 km = 0.07 path-width (1-sig)
RUWE and duplicate source : 2.3 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#56
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0