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447945 (2008 AR108)
Classification: Mars-crossing Asteroid          SPK-ID: 2447945
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3692774769437093 1.1728e-07  
a 2.563513482683076 3.8596e-08 au
q 1.616865691686688 3.2194e-07 au
i 5.899651055752472 4.2246e-06 deg
node 135.5410704595609 6.5174e-05 deg
peri 256.0018245189763 6.8357e-05 deg
M 53.58687186258805 9.8728e-06 deg
tp 2458777.344425147824
(2019-Oct-20.84442515)
4.4845e-05 TDB
period 1499.17328917403
4.10
3.3857e-05
9.27e-08
d
yr
n .2401323466737739 5.4231e-09 deg/d
Q 3.510161273679463 5.2848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      5813 days (15.92 yr)  
   first obs. used      2004-02-27  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 11:11:33  

Additional Information
 Earth MOID = .635139 au 
 Jupiter MOID = 1.96682 au 
 T_jup = 3.327 
[ 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 17.3   n/a MPO456123  

447945 (2008 AR108)          Discovered 2007-Dec-31 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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