21609 Williamcaleb

Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Williamcaleb
symbol =


caption =
discovery = yes
discovery_ref =
discoverer = Lincoln Laboratory Near-Earth Asteroid Research Team
discovery_site = Socorro
discovered = May 10, 1999
designations = yes
mp_name = 21609
alt_names = 1999 JQ41
mp_category =
orbit_ref =
epoch = May 14, 2008
aphelion = 2.9003899
perihelion = 1.7964837
semimajor =
eccentricity = 0.2350300
period = 1314.5186282
avg_speed =
inclination = 6.45232
asc_node = 192.51588
mean_anomaly = 332.93736
arg_peri = 236.26260
satellites =
physical_characteristics = yes
dimensions =
mass =
density =
surface_grav =
escape_velocity =
sidereal_day =
axial_tilt =
pole_ecliptic_lat =
pole_ecliptic_lon =
albedo =
temperatures=
temp_name1 =
mean_temp_1 =
max_temp_1 =
temp_name2 =
max_temp_2 =
spectral_type =
abs_magnitude = 13.6

21609 Williamcaleb (1999 JQ41) is a Main-belt Asteroid discovered on May 10, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

External links

* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21609+Williamcaleb JPL Small-Body Database Browser on 21609 Williamcaleb]