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] : d71bd3dd-05ef-4d09-8bfb-3a7830de27a3 [observed]
Occultation Date + Time : 2019-09-20 at 18:14:38 UT +/- 0.02 min [1]
Object Designation : (190) Ismene
Orbit Class : MBA
Star Designation : GDR3 2611894789519853952
Star Coordinates (ICRF) : RA = 22 47 34.6515, DE = -06 04 11.801 [2]
Star Magnitudes : G = 12.13 mag, RP = 11.44 mag, BP = 12.66 mag
Object Magnitude : V = 13.71 mag
Estimated Magnitude Drop : 1.8 mag
Estimated Max. Duration : 6.3 sec
Object Mean Diameter : 89 km (src: astorb)
Speed of the shadow : 14.1 km/s
Elongation to Moon & Sun : 90° (sunlit = 64%), Sun = 163°
Cross-track uncertainty : 2.7 mas = 5 km = 0.07 path-width (1-sig)
RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#131
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0