247 Eukrate

247 Eukrate
Discovery
Discovered by Robert Luther
Discovery date 14 March 1885
Designations
MPC designation (247) Eukrate
A901 TB, 1947 TA,
1960 TC
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 131.09 yr (47880 d)
Aphelion 3.4086 AU (509.92 Gm)
Perihelion 2.0778 AU (310.83 Gm)
2.7432 AU (410.38 Gm)
Eccentricity 0.24257
4.54 yr (1659.5 d)
18.0 km/s
75.9892°
0° 13m 0.948s / day
Inclination 24.991°
0.16410°
54.969°
Physical characteristics
Dimensions 134.43±2.5 km
12.093 h (0.5039 d)
0.0595±0.002
CP
8.04

    247 Eukrate is a rather large main-belt asteroid. It is dark and probably a primitive carbonaceous body. The asteroid was discovered by Robert Luther on March 14, 1885, in Düsseldorf. It was named after Eukrate, a Nereid in Greek mythology.

    In 2001, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.18 AU. The resulting data yielded an effective diameter of 134 ± 15 km.[2]

    An Occult (Software) plot of 5 Occultation chords (and a miss) with DAMIT Inversion model at event time.

    There have been 9 occultation observations of this asteroid since 2004.[3] The latest of 2018 May 12 was a 5 chord observation that allows, using Occult (Software), the scaling of the DAMIT model 1207, to yield a Mean volume-equivalent diameter of 137.5km and a Mean surface-equivalent diameter of 140.0 km.


    References

    1. ↑ "247 Eukrate". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
    2. ↑ Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999 2003" (PDF), Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018, retrieved 2015-04-14.
    3. ↑ "PDS Asteroid/Dust Subnode". sbn.psi.edu. Archived from the original on 2018-04-25. Retrieved 2018-05-19.


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