- 18876 Sooner
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Sooner
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =J. M. Roe
discovery_site =Oaxaca
discovered =December 2 ,1999
designations = yes
mp_name = 18876
alt_names = 1999 XM
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.9981001
perihelion = 1.8245385
semimajor =
eccentricity = 0.2433443
period = 1367.6674599
avg_speed =
inclination = 8.85080
asc_node = 75.64918
mean_anomaly = 94.76180
arg_peri = 356.83701
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 = 14.118876 Sooner (1999 XM) is a
Main-belt Asteroid discovered onDecember 2 ,1999 byJ. M. Roe atOaxaca .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=18876+Sooner JPL Small-Body Database Browser on 18876 Sooner]
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