- 22815 Sewell
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Sewell
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =Lincoln Laboratory Near-Earth Asteroid Research Team
discovery_site =Socorro
discovered =September 7 ,1999
designations = yes
mp_name = 22815
alt_names = 1999 RN18
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.7066532
perihelion = 1.9739210
semimajor =
eccentricity = 0.1565475
period = 1307.6819887
avg_speed =
inclination = 6.21517
asc_node = 194.66604
mean_anomaly = 152.81942
arg_peri = 154.76406
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 = 15.322815 Sewell (1999 RN18) is a
Main-belt Asteroid discovered onSeptember 7 ,1999 by theLincoln Laboratory Near-Earth Asteroid Research Team atSocorro .External links
[http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=22815+Sewell JPL Small-Body Database Browser on 22815 Sewell]
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