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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2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 804be3ba-b175-4755-873e-c11b97d23adc [observed]
Occultation Date + Time : 2017-12-15 at 19:00:23 UT +/- 0.03 min [1]
Object Designation : (114) Kassandra
Orbit Class : MBA
Star Designation : GDR3 3356299822638892672
Star Coordinates (ICRF) : RA = 06 39 36.4578, DE = +15 30 00.357 [2]
Star Magnitudes : G = 12.83 mag, RP = 12.05 mag, BP = 13.48 mag
Object Magnitude : V = 11.91 mag
Estimated Magnitude Drop : 0.4 mag
Estimated Max. Duration : 10.4 sec
Object Mean Diameter : 100 km (src: astorb)
Speed of the shadow : 9.6 km/s
Elongation to Moon & Sun : 137° (sunlit = 6%), Sun = 163°
Cross-track uncertainty : 1.7 mas = 1 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 2.45 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#146
Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0