- 19656 Simpkins
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Simpkins
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =Lincoln Laboratory Near-Earth Asteroid Research Team
discovery_site =Socorro
discovered =September 9 ,1999
designations = yes
mp_name = 19656
alt_names = 1999 RA122
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.5852049
perihelion = 2.1646743
semimajor =
eccentricity = 0.0885350
period = 1336.8333611
avg_speed =
inclination = 5.99793
asc_node = 318.58689
mean_anomaly = 223.86199
arg_peri = 271.79231
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 = 15.519656 Simpkins (1999 RA122) is a
Main-belt Asteroid discovered onSeptember 9 ,1999 by theLincoln Laboratory Near-Earth Asteroid Research Team atSocorro .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=19656+Simpkins JPL Small-Body Database Browser on 19656 Simpkins]
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