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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2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : b61a54f4-3611-488d-957d-b5328727759a [observed]
Occultation Date + Time : 2014-06-23 at 23:04:22 UT +/- 0.0 min [1]
Object Designation : (198) Ampella
Orbit Class : MBA
Star Designation : GDR3 4111169191453579264
Star Coordinates (ICRF) : RA = 17 20 07.5698, DE = -23 54 04.817 [2]
Star Magnitudes : G = 11.19 mag, RP = 10.25 mag, BP = 12.11 mag
Object Magnitude : V = 11.47 mag
Estimated Magnitude Drop : 0.9 mag
Estimated Max. Duration : 5.4 sec
Object Mean Diameter : 57 km (src: astorb)
Speed of the shadow : 10.5 km/s
Elongation to Moon & Sun : 153° (sunlit = 11%), Sun = 168°
Cross-track uncertainty : 1.7 mas = 1 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 0.93 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