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] : 52957b7b-7820-4520-96de-796962a5aafb [observed]
Occultation Date + Time : 2021-12-08 at 20:04:50 UT +/- 0.21 min [1]
Object Designation : (588) Achilles
Orbit Class : JTRO
Star Designation : GDR3 2787522393164847488
Star Coordinates (ICRF) : RA = 01 14 16.0398, DE = +20 35 58.328 [2]
Star Magnitudes : G = 15.37 mag, RP = 14.79 mag, BP = 15.77 mag
Object Magnitude : V = 15.29 mag
Estimated Magnitude Drop : 0.7 mag
Estimated Max. Duration : 22.2 sec
Object Mean Diameter : 136 km (src: astorb)
Speed of the shadow : 6.1 km/s
Elongation to Moon & Sun : 68° (sunlit = 27%), Sun = 127°
Cross-track uncertainty : 6.3 mas = 18 km = 0.14 path-width (1-sig)
RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#104
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
