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308142 (2005 AR2)
Classification: Main-belt Asteroid          SPK-ID: 2308142
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 .1000493474754698 6.458e-08  
a 2.324792441058475 2.1098e-08 au
q 2.09219847431467 1.5565e-07 au
i 7.36087552170477 4.8043e-06 deg
node 102.8585503938069 5.596e-05 deg
peri 299.5991549217051 6.199e-05 deg
M 189.4020885304198 3.2135e-05 deg
tp 2459614.044282644016
(2022-Feb-03.54428264)
0.00012132 TDB
period 1294.716563931856
3.54
1.7624e-05
4.825e-08
d
yr
n .2780531353570816 3.785e-09 deg/d
Q 2.557386407802281 2.3208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      5589 days (15.30 yr)  
   first obs. used      2005-01-06  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60102  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:10:53  

Additional Information
 Earth MOID = 1.11285 au 
 Jupiter MOID = 2.76533 au 
 T_jup = 3.557 
[ 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 17.0   n/a MPO413269  

308142 (2005 AR2)          Discovered 2005-Jan-06 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 AR2 = 2007 TU182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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