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212973 (2009 BN146)
Classification: Main-belt Asteroid          SPK-ID: 2212973
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131214025097987 5.092e-08  
a 2.34746606340977 1.2358e-08 au
q 2.081917409972701 1.1576e-07 au
i 1.64694324899617 6.6422e-06 deg
node 212.405547816017 0.00013147 deg
peri 305.4994866511066 0.00013501 deg
M 159.5863759442472 2.8365e-05 deg
tp 2458814.141092930876
(2019-Nov-26.64109293)
0.00010317 TDB
period 1313.703662386112
3.60
1.0374e-05
2.84e-08
d
yr
n .2740344038823208 2.1639e-09 deg/d
Q 2.61301471684684 1.3756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      7015 days (19.21 yr)  
   first obs. used      2002-04-04  
   last obs. used      2021-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62588  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:34:14  

Additional Information
 Earth MOID = 1.09226 au 
 Jupiter MOID = 2.36897 au 
 T_jup = 3.551 
[ 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 17.98   n/a E2021B55  

212973 (2009 BN146)          Discovered 2009-Jan-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2009 BN146 = 2004 XO138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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