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] : 4fe7f43a-fdb7-47d3-89a6-a6945447930a [observed]
Occultation Date + Time : 2017-11-15 at 22:34:15 UT +/- 0.02 min [1]
Object Designation : (8931) Hirokimatsuo
Orbit Class : MBA
Star Designation : GDR3 0065835187156065536
Star Coordinates (ICRF) : RA = 03 55 59.0243, DE = +24 07 44.936 [2]
Star Magnitudes : G = 13.0 mag, RP = 12.26 mag, BP = 13.6 mag
Object Magnitude : V = 16.84 mag
Estimated Magnitude Drop : 3.9 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 6 km (src: astorb)
Speed of the shadow : 11.6 km/s
Elongation to Moon & Sun : 142° (sunlit = 6%), Sun = 171°
Cross-track uncertainty : 2.3 mas = 2 km = 0.40 path-width (1-sig)
RUWE and duplicate source : 0.83 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#59
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0