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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3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : be77219e-06b8-45ab-8f41-545ed0af20b9 [observed]
Occultation Date + Time : 2021-08-14 at 23:36:11 UT +/- 0.03 min [1]
Object Designation : (3731) Hancock
Orbit Class : MBA
Star Designation : GDR3 4212170363892659968
Star Coordinates (ICRF) : RA = 19 17 59.0145, DE = -04 56 15.194 [2]
Star Magnitudes : G = 14.87 mag, RP = 13.9 mag, BP = 15.86 mag
Object Magnitude : V = 16.29 mag
Estimated Magnitude Drop : 1.7 mag
Estimated Max. Duration : 4.7 sec
Object Mean Diameter : 49 km (src: astorb)
Speed of the shadow : 10.5 km/s
Elongation to Moon & Sun : 67° (sunlit = 43%), Sun = 144°
Cross-track uncertainty : 5.0 mas = 9 km = 0.19 path-width (1-sig)
RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#50
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0