2003 AZ84

Infobox Planet
bgcolour = #FFFFC0
name = mp|2003 AZ|84
symbol =


caption =
discovery = yes
discoverer = C. Trujillo,
M. Brown, E. Helin,
S. Pravdo, K. Lawrence, and M. Hicks
discovered = January 13, 2003
mp_name = mp|2003 AZ|84
alt_names = "none"
mp_category = plutino
orbit_ref = cite web
author=Marc W. Buie
date=2006/02/25
title=Orbit Fit and Astrometric record for 03AZ84
publisher=SwRI (Space Science Department)
url=http://www.boulder.swri.edu/~buie/kbo/astrom/03AZ84.html
accessdate=2008-07-23] cite web
date=2006-02-25 last obs
title=JPL Small-Body Database Browser: (2003 AZ84)
url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003AZ84
accessdate=2008-07-23]
epoch = December 31, 2006 (JD 2454100.5)
aphelion = 6 964.422 Gm (46.554 AU)
perihelion = 4 833.387 Gm (32.309 AU)
semimajor = 5 898.905 Gm (39.432 AU)
semiminor =
orbital_circ =
eccentricity = 0.181
period = 90 441.418 d (247.62 a)
avg_speed = 4.70 km/s
max_speed =
min_speed =
inclination = 13.595°
asc_node = 252.139°
arg_peri = 14.917°
mean_anomaly = 214.954°
satellites=1 (68 km)
physical_characteristics = yes
dimensions =686 ± 96 kmStansberry, Grundy, Brown, Spencer, Trilling, Cruikshank, Luc Margot "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope" (2007) [http://arxiv.org/abs/astro-ph/0702538v1 Preprint arXiv] ]
radius = 343 km
surface_area =
volume = 2.04e|8 km³
mass = 4.1e|20? kg
density = 2.0? g/cm³
surface_grav = 0.2040? m/s²
escape_velocity = 0.3859? km/s
sidereal_day =
rot_velocity =
albedo =0.09–0.16
single_temperature =~44 K
spectral_type = B-V=0.70; V-R=0.36 [ [http://www.physics.nau.edu/~tegler/research/survey.htm Magnitudes & Colors ] ]
abs_magnitude =3.82

mp|2003 AZ|84, also written as 2003 AZ84, is a Trans-Neptunian object. It was discovered on January 13, 2003 by C. Trujillo, M. Brown, E. Helin, S. Pravdo, K. Lawrence, and M. Hicks at the Palomar Observatory using the Schmidt telescope.

Orbit

It is classified as a plutino, which means that it is in a 3:2 orbital resonance with Neptune, similar to that of Pluto. It orbits the sun just under 248 Earth years.

atellite

The discovery of a satellite of mp|2003 AZ|84 was reported in IAUC 8812 on 22 February 2007.cite web
date=4 March 2007
title=2003 AZ84
publisher=Johnston's Archive
author=Wm. Robert Johnston
url=http://www.johnstonsarchive.net/astro/astmoons/am2003az84.html
accessdate=2007-02-25] cite web
date=2007-03-15
title=Distant EKO's
publisher= [http://www.boulder.swri.edu/ekonews/ The Kuiper Belt Electronic Newsletter]
author=Joel Parker
url=http://www.boulder.swri.edu/ekonews/issues/past/n051/html/index.html
accessdate=2007-02-25] The orbit of this satellite has yet to be determined, but was measured with a separation of 0.22 arcsec and an apparent magnitude difference of 5.0. It is estimated to be about 68 ± 20 km in diameter.

References