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] : e06a8298-aa20-46cc-a305-d1d3f459789c [observed]
Occultation Date + Time : 2012-10-23 at 02:46:34 UT +/- 0.03 min [1]
Object Designation : (17802) 1998 FA71
Orbit Class : MBA
Star Designation : GDR3 0122314002800850304
Star Coordinates (ICRF) : RA = 03 20 40.7691, DE = +29 43 29.676 [2]
Star Magnitudes : G = 10.03 mag, RP = 9.49 mag, BP = 10.4 mag
Object Magnitude : V = 17.54 mag
Estimated Magnitude Drop : 7.5 mag
Estimated Max. Duration : 0.8 sec
Object Mean Diameter : 9 km (src: astorb)
Speed of the shadow : 11.9 km/s
Elongation to Moon & Sun : 102° (sunlit = 61%), Sun = 153°
Cross-track uncertainty : 5.7 mas = 8 km = 0.98 path-width (1-sig)
RUWE and duplicate source : 5.1 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#45
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0