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] : d684e019-7ae1-46c5-a2ef-022791829575 [observed]
Occultation Date + Time : 2021-07-14 at 02:14:27 UT +/- 0.02 min [1]
Object Designation : (4830) Thomascooley
Orbit Class : MBA
Star Designation : GDR3 4082976094046776192
Star Coordinates (ICRF) : RA = 19 19 44.7819, DE = -20 16 29.466 [2]
Star Magnitudes : G = 12.12 mag, RP = 10.7 mag, BP = 14.36 mag
Object Magnitude : V = 16.16 mag
Estimated Magnitude Drop : 4.1 mag
Estimated Max. Duration : 0.7 sec
Object Mean Diameter : 7 km (src: astorb)
Speed of the shadow : 10.2 km/s
Elongation to Moon & Sun : 129° (sunlit = 17%), Sun = 176°
Cross-track uncertainty : 1.0 mas = 0 km = 0.14 path-width (1-sig)
RUWE and duplicate source : 1.25 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#55
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0