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):
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] : 3d110e62-3587-44a7-9ff4-53f834f6a979 [observed]
Occultation Date + Time : 2022-12-14 at 21:49:15 UT +/- 0.04 min [1]
Object Designation : (385) Ilmatar
Orbit Class : MBA
Star Designation : GDR3 0207547083333232640
Star Coordinates (ICRF) : RA = 05 16 10.0235, DE = +43 38 36.474 [2]
Star Magnitudes : G = 13.43 mag, RP = 12.57 mag, BP = 14.21 mag
Object Magnitude : V = 11.99 mag
Estimated Magnitude Drop : 0.3 mag
Estimated Max. Duration : 7.3 sec
Object Mean Diameter : 92 km (src: astorb)
Speed of the shadow : 12.6 km/s
Elongation to Moon & Sun : 74° (sunlit = 64%), Sun = 159°
Cross-track uncertainty : 2.7 mas = 3 km = 0.04 path-width (1-sig)
RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#124
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0