Jupiter LXX

Jupiter LXX, originally known as S/2017 J 9, is an outer natural satellite of Jupiter. It was discovered by Scott S. Sheppard and his team in 2017, but not announced until July 17, 2018, via a Minor Planet Electronic Circular from the Minor Planet Center.^[2] It is about 3 kilometers in diameter and orbits at a semi-major axis of about 21,487,000 km with an inclination of about 152.7°.^[3] It belongs to the Ananke group.^[3]

Jupiter LXX

S/2017 J 9 imaged by the Cerro Tololo Observatory's Dark Energy Camera on 26 March 2017
Discovery
Discovered by	Scott S. Sheppard et al.
Discovery date	2017
Designations
Designation	Jupiter LXX
Alternative names	S/2017 J 9
Orbital characteristics [1]
Semi-major axis	21487000 km
Eccentricity	0.229
Orbital period (sidereal)	−639.2 days
Mean anomaly	259.5°
Inclination	152.7°
Longitude of ascending node	306.4°
Argument of perihelion	317.7°
Satellite of	Jupiter
Group	Ananke group
Physical characteristics
Mean diameter	3 km
Apparent magnitude	22.8