UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
1 observation found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 4a52864a-9a08-41ac-90bd-c9694c353446 [observed]
Occultation Date + Time : 2020-07-19 at 20:02:42 UT +/- 0.01 min [1]
Object Designation : (1646) Rosseland
Orbit Class : MBA
Star Designation : GDR3 4134954651594623488
Star Coordinates (ICRF) : RA = 17 19 39.4707, DE = -17 29 27.700 [2]
Star Magnitudes : G = 11.86 mag, RP = 11.35 mag, BP = 12.2 mag
Object Magnitude : V = 15.98 mag
Estimated Magnitude Drop : 4.1 mag
Estimated Max. Duration : 1.8 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 : 0.7 mas = 0 km = 0.06 path-width (1-sig)
RUWE and duplicate source : 1.85 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