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] : ee45440d-8f6d-4312-ae98-79eb95f2def3 [observed]
Occultation Date + Time : 2012-06-25 at 23:37:27 UT +/- 0.04 min [1]
Object Designation : (60558) Echeclus
Orbit Class : CEN
Star Designation : GDR3 4122820922313712256
Star Coordinates (ICRF) : RA = 17 24 26.1130, DE = -18 10 21.065 [2]
Star Magnitudes : G = 13.61 mag, RP = 12.72 mag, BP = 14.43 mag
Object Magnitude : V = 17.86 mag
Estimated Magnitude Drop : 4.3 mag
Estimated Max. Duration : 2.9 sec
Object Mean Diameter : 50 km (src: astorb)
Speed of the shadow : 17.1 km/s
Elongation to Moon & Sun : 92° (sunlit = 37%), Sun = 166°
Cross-track uncertainty : 1.0 mas = 4 km = 0.09 path-width (1-sig)
RUWE and duplicate source : 0.89 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#112
Object is a "TNOs are cool" target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0