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] : 7638bfe4-584e-4d41-8cb1-36bad12e83bb [observed]
Occultation Date + Time : 2018-04-19 at 02:50:17 UT +/- 0.04 min [1]
Object Designation : (29) Amphitrite
Orbit Class : MBA
Star Designation : GDR3 4049884848502583936
Star Coordinates (ICRF) : RA = 18 04 39.1116, DE = -31 02 17.727 [2]
Star Magnitudes : G = 11.38 mag, RP = 10.29 mag, BP = 12.63 mag
Object Magnitude : V = 10.7 mag
Estimated Magnitude Drop : 0.5 mag
Estimated Max. Duration : 47.4 sec
Object Mean Diameter : 212 km (src: astorb)
Speed of the shadow : 4.5 km/s
Elongation to Moon & Sun : 155° (sunlit = 12%), Sun = 118°
Cross-track uncertainty : 2.7 mas = 4 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 0.6 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#164
Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
