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442846 (2013 AR118)
Classification: Main-belt Asteroid          SPK-ID: 2442846
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183350843892592 6.7568e-08  
a 2.697345566078223 4.0433e-08 au
q 2.202784980267839 1.8082e-07 au
i 5.652882076929753 9.0738e-06 deg
node 61.44571215322251 7.9401e-05 deg
peri 60.17745698846615 8.3204e-05 deg
M 233.4561252375013 2.7546e-05 deg
tp 2459569.276884341713
(2021-Dec-20.77688434)
0.00013103 TDB
period 1618.092371103032
4.43
3.6383e-05
9.961e-08
d
yr
n .2224842082127813 5.0026e-09 deg/d
Q 3.191906151888606 4.7847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      5169 days (14.15 yr)  
   first obs. used      2005-05-08  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:44:02  

Additional Information
 Earth MOID = 1.22517 au 
 Jupiter MOID = 1.91715 au 
 T_jup = 3.338 
[ 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 17.1   n/a MPO450447  

442846 (2013 AR118)          Discovered 2007-Oct-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2013 AR118 = 2007 TQ451 = 2009 DJ94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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