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] : fcf6db9d-2486-45af-ad79-196d731ee970 [observed]
Occultation Date + Time : 2020-01-02 at 02:25:42 UT +/- 0.01 min [1]
Object Designation : (131) Vala
Orbit Class : MBA
Star Designation : GDR3 0682463504402708736
Star Coordinates (ICRF) : RA = 08 17 56.5162, DE = +25 43 18.345 [2]
Star Magnitudes : G = 12.33 mag, RP = 11.69 mag, BP = 12.82 mag
Object Magnitude : V = 13.5 mag
Estimated Magnitude Drop : 1.5 mag
Estimated Max. Duration : 4.0 sec
Object Mean Diameter : 40 km (src: astorb)
Speed of the shadow : 10.1 km/s
Elongation to Moon & Sun : 122° (sunlit = 40%), Sun = 159°
Cross-track uncertainty : 1.3 mas = 1 km = 0.04 path-width (1-sig)
RUWE and duplicate source : 1.29 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#94
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0