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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457535.5 (2016-May-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334260970125707 6.6097e-08  
q 2.786069779996262 2.2976e-07 au
tp 2457408.055598189364
(2016-Jan-20.55559819)		 0.00023473 TDB
node 72.3291135836554 0.00018691 deg
peri 212.3971860188664 0.00019083 deg
i 2.518176889584561 7.6783e-06 deg
   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
 Jupiter MOID = 1.50611 au 
 T_jup = 3.175 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.368789520072142E-15 -1.493821570416223E-14 -4.380511068422634E-12 2.341662452070734E-15 -6.169912551938585E-13 -7.504128162564144E-16
q -1.493821570416223E-14 5.279099203263829E-14 1.906397956888674E-11 -3.076480478353809E-14 2.809145608191614E-12 4.33874655808963E-15
tp -4.380511068422634E-12 1.906397956888674E-11 5.509986035852678E-8 -1.659167187350068E-11 9.125495938999058E-9 8.592487584366893E-12
node 2.341662452070734E-15 -3.076480478353809E-14 -1.659167187350068E-11 3.493473226202638E-8 -3.490504060463432E-8 -3.656192748985152E-10
peri -6.169912551938585E-13 2.809145608191614E-12 9.125495938999058E-9 -3.490504060463432E-8 3.641489669304122E-8 3.667040726352321E-10
i -7.504128162564144E-16 4.33874655808963E-15 8.592487584366893E-12 -3.656192748985152E-10 3.667040726352321E-10 5.895555516563644E-11

[ 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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