Jupiter LXI explained

Jupiter LXI
Discoverer:	Brett J. Gladman
Discovered:	April 2003
Mpc Name:	Jupiter LXI
Alt Names:	S/2003 J 19
Orbit Ref:	 ^[1]
Inclination:	166.7°
Eccentricity:	0.257
Arg Peri:	284.1°
Asc Node:	105.7°
Mean Anomaly:	205.7°
Period:	−697.6 days
Satellite Of:	Jupiter
Group:	Carme group
Magnitude:	23.7
Mean Diameter:	2 km

Jupiter LXI, provisionally known as , is a natural satellite of Jupiter. It was discovered by a team of astronomers led by Brett J. Gladman, et al. in 2003.^{[2] [3]}

is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 22,709 Mm in 699.125 days, at an inclination of 165° to the ecliptic (164° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.1961.

It belongs to the Carme group, made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165°.

This moon was lost following its discovery in 2003.^{[4] [5] [6]} It was recovered in 2018^[7] and given its permanent designation that year.^[8]

Notes and References

1. https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
2. http://cbat.eps.harvard.edu/iauc/08100/08125.html IAUC 8125: S/2003 J 19 and S/2003 J 20
3. https://www.minorplanetcenter.net/mpec/K03/K03G64.html MPEC 2003-G64: S/2003 J 19
4. Web site: Outer-Planet Moons Found — and Lost . Beatty . Kelly . 4 April 2012 . www.skyandtelescope.com . Sky & Telescope . 27 June 2017.
5. Brozović . Marina . Jacobson . Robert A. . 9 March 2017 . The Orbits of Jupiter's Irregular Satellites . The Astronomical Journal . 153 . 4 . 147 . 10.3847/1538-3881/aa5e4d. 2017AJ....153..147B . free .
6. Jacobson . B. . Brozović . M. . B. . Gladman . M. . Alexandersen . P. D. . Nicholson . C. . Veillet . 28 September 2012 . Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011 . The Astronomical Journal . 144 . 5 . 132 . 10.1088/0004-6256/144/5/132 . 2012AJ....144..132J . 123117568 . free .
7. Web site: MPEC 2018-O08 : S/2003 J 19. Minor Planet Center. International Astronomical Union. 7 August 2018.
8. Web site: M.P.C. 111804. Minor Planet Center. International Astronomical Union. 30 September 2018.