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379569 (2011 BK8)
Classification: Main-belt Asteroid          SPK-ID: 2379569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438341766192241 8.0218e-08  
a 2.337955759184739 2.4924e-08 au
q 2.001677817590229 1.7836e-07 au
i .8335316026906031 8.7417e-06 deg
node 34.2491621083802 0.00051448 deg
peri 111.4895756701633 0.00051681 deg
M 202.773183776936 4.3112e-05 deg
tp 2459570.765343970639
(2021-Dec-22.26534397)
0.0001602 TDB
period 1305.728429545816
3.57
2.088e-05
5.717e-08
d
yr
n .2757081731958783 4.4088e-09 deg/d
Q 2.674233700779248 2.8509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1997-04-08  
   last obs. used      2018-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57042  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:32:16  

Additional Information
 Earth MOID = 1.01382 au 
 Jupiter MOID = 2.32997 au 
 T_jup = 3.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456320.5 (2013-Jan-28.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1430263379784263 7.9896e-08  
q 2.003886916733295 1.7746e-07 au
tp 2456957.956495015677
(2014-Oct-27.45649502)
0.00014804 TDB
node 34.35337768049055 0.00051324 deg
peri 111.3877593545391 0.00051561 deg
i .8349278071402002 8.7454e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1997-04-08  
   last obs. used      2018-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57042  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:32:16  

Additional Information
 Jupiter MOID = 2.32997 au 
 T_jup = 3.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.383305554933714E-15 -1.409963008017868E-14 -5.108921421481436E-13 -2.800577581628875E-14 -5.030710174351432E-13 -3.395905830872621E-15
q -1.409963008017868E-14 3.149184532551011E-14 1.805552655289294E-12 4.766411020010355E-14 1.284858565858531E-12 7.615914844732856E-15
tp -5.108921421481436E-13 1.805552655289294E-12 2.19168595980855E-8 -2.775937304435527E-10 7.330034779583804E-9 3.957045769498128E-12
node -2.800577581628875E-14 4.766411020010355E-14 -2.775937304435527E-10 2.634110868715159E-7 -2.63467255644807E-7 -6.913770539368526E-10
peri -5.030710174351432E-13 1.284858565858531E-12 7.330034779583804E-9 -2.63467255644807E-7 2.658566762084868E-7 6.927476154609717E-10
i -3.395905830872621E-15 7.615914844732856E-15 3.957045769498128E-12 -6.913770539368526E-10 6.927476154609717E-10 7.64822129828354E-11

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 18.3   n/a MPO434348  

379569 (2011 BK8)          Discovered 2004-Feb-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2011 BK8 = 2004 DW50 = 2006 VV141 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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