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):
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0
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Map with groundtrack and observer stations
Event Details
Occultation UUID [and DB] : ffb2772c-204c-46aa-89d2-abd2cb78d71d [observed]
Occultation Date + Time : 2011-04-07 at 23:18:42 UT +/- 0.01 min [1]
Object Designation : (85) Io
Orbit Class : MBA
Star Designation : GDR3 6311715889017684608
Star Coordinates (ICRF) : RA = 14 50 15.1613, DE = -12 35 44.978 [2]
Star Magnitudes : G = 13.47 mag, RP = 12.8 mag, BP = 13.93 mag
Object Magnitude : V = 12.09 mag
Estimated Magnitude Drop : 0.3 mag
Estimated Max. Duration : 15.4 sec
Object Mean Diameter : 155 km (src: astorb)
Speed of the shadow : 10.1 km/s
Elongation to Moon & Sun : 157° (sunlit = 17%), Sun = 154°
Cross-track uncertainty : 1.1 mas = 1 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 4.49 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#125
Object is a "TNOs are cool" target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
