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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345324371401355 6.5996e-08  
a 3.213054961994025 5.0417e-08 au
q 2.780794847291764 2.2943e-07 au
i 2.518077851289074 7.6791e-06 deg
node 72.31459834592023 0.00018697 deg
peri 212.6741665401561 0.00019083 deg
M 271.944654162714 4.3347e-05 deg
tp 2459515.051543259976
(2021-Oct-27.55154326)
0.00026071 TDB
period 2103.660530910711
5.76
4.9513e-05
1.356e-07
d
yr
n .1711302725464691 4.0279e-09 deg/d
Q 3.645315076696287 5.7199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      6235 days (17.07 yr)  
   first obs. used      2003-03-27  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:13:40  

Additional Information
 Earth MOID = 1.7648 au 
 Jupiter MOID = 1.50611 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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