(16684) 1994 JQ1

(16684) 1994 JQ₁
Discovery
Discovered by	Michael J. Irwin Anna N. Zytkow
Discovery date	May 11, 1994^[1]
Designations
Alternative names	none
Minor planet category	TNO (cubewano)^[2]
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion	6999.289 Gm (46.787 AU)
Perihelion	6279.097 Gm (41.973 AU)
Semi-major axis	6639.193 Gm (44.380 AU)
Eccentricity	0.054
Orbital period	107989.929 d (295.66 yr)
Average orbital speed	4.47 km/s
Mean anomaly	318.096°
Inclination	3.738°
Longitude of ascending node	25.613°
Argument of perihelion	246.446°
Physical characteristics
Dimensions	183 km^[3]
Mass	6.4×10¹⁸? kg
Mean density	2.0? g/cm³
Surface gravity	0.0511? m/s²
Escape velocity	0.0967? km/s
Rotation period	? d
Albedo	0.09 (assumed)
Temperature	~42 K
Spectral type	?
Absolute magnitude (H)	6.9^[1]

(16684) 1994 JQ₁, also written as (16684) 1994 JQ1, is a trans-Neptunian object of the cubewano class. It was discovered on May 11, 1994, by Michael J. Irwin and Anna N. Zytkow.

(16684) 1994 JQ₁ is the third cubewano to be given an official Minor Planet Center catalog number.^[4] The first two official cubewanos are (15760) 1992 QB1 and (15807) 1994 GV9.

References

1 2 "JPL Small-Body Database Browser: 16684 (1994 JQ1)". 23 May 2001. Retrieved 2008-09-29.
↑ Marc W. Buie (23 May 2001). "Orbit Fit and Astrometric record for 16684". SwRI (Space Science Department). Retrieved 2008-09-29.
↑ Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 28 September 2008. Retrieved 2008-09-29.
↑ "MPEC 2008-O05 : Distant Minor Planets (2008 AUG. 2.0 TT)". Minor Planet Center. 17 July 2008. Archived from the original on 7 December 2008. Retrieved 2008-09-29.

External links

Orbital simulation from JPL (Java) / Ephemeris

Minor planets navigator

16683 Alepieri (16684) 1994 JQ₁ (16685) 1994 JU8

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