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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345617347305688 6.588e-08  
a 3.212376268742769 4.7071e-08 au
q 2.78011334541343 2.278e-07 au
i 2.518179333153711 7.6761e-06 deg
node 72.31150931207598 0.00018297 deg
peri 212.7725207494945 0.00018645 deg
M 306.0880308504994 4.0517e-05 deg
tp 2459515.434859393993
(2021-Oct-27.93485939)
0.00024055 TDB
period 2102.994032131133
5.76
4.6223e-05
1.266e-07
d
yr
n .1711845086099379 3.7626e-09 deg/d
Q 3.644639192072108 5.3405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      6536 days (17.89 yr)  
   first obs. used      2003-03-27  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:48:55  

Additional Information
 Earth MOID = 1.7622 au 
 Jupiter MOID = 1.50634 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 16.12   n/a E2021B55  
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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