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181431 (2006 SA321)
Classification: Main-belt Asteroid          SPK-ID: 2181431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05800359535381765 5.5612e-08  
a 2.379747839211709 1.5427e-08 au
q 2.241713908501951 1.2782e-07 au
i 7.319585159616229 4.7956e-06 deg
node 39.13261320642868 4.8229e-05 deg
peri 155.6796646746762 6.8633e-05 deg
M 135.9680282316965 4.926e-05 deg
tp 2458694.058673761284
(2019-Jul-29.55867376)
0.00018398 TDB
period 1340.895207623789
3.67
1.3039e-05
3.57e-08
d
yr
n .2684773559881379 2.6107e-09 deg/d
Q 2.517781769921467 1.6322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      6600 days (18.07 yr)  
   first obs. used      2002-08-19  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52146  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:36  

Additional Information
 Earth MOID = 1.24016 au 
 Jupiter MOID = 2.43817 au 
 T_jup = 3.526 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.63   n/a E2021B55  

181431 (2006 SA321)          Discovered 2006-Sep-27 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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