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214987 (2008 AO117)
Classification: Outer Main-belt Asteroid          SPK-ID: 2214987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342516778577363 8.0629e-08  
a 3.214510875270985 5.5783e-08 au
q 2.782957396773915 2.6308e-07 au
i 2.518141543605041 1.1391e-05 deg
node 72.32221508076051 0.00018989 deg
peri 212.4953944629387 0.00019427 deg
M 203.6918437708988 4.343e-05 deg
tp 2459514.507828488179
(2021-Oct-27.00782849)
0.00026473 TDB
period 2105.090522425878
5.76
5.4796e-05
1.5e-07
d
yr
n .1710140234659082 4.4516e-09 deg/d
Q 3.646064353768055 6.3272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      5761 days (15.77 yr)  
   first obs. used      2003-03-27  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6082  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:03:24  

Additional Information
 Earth MOID = 1.76635 au 
 Jupiter MOID = 1.50349 au 
 T_jup = 3.175 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO341703  
diameter diameter 3.700 km 0.885 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214987 (2008 AO117)          Discovered 2008-Jan-11 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2008 AO117 = 2005 SW262 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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