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212968 (2009 BH104)
Classification: Main-belt Asteroid          SPK-ID: 2212968
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1508752370161024 4.4277e-08  
a 2.408872706484139 1.3574e-08 au
q 2.045433465951724 1.0903e-07 au
i 1.861308705240895 4.5697e-06 deg
node 294.0857651664269 0.00016238 deg
peri 303.2403713293938 0.00016312 deg
M 294.2593356294853 1.6615e-05 deg
tp 2459249.873781631533
(2021-Feb-04.37378163)
6.3723e-05 TDB
period 1365.586463826744
3.74
1.1542e-05
3.16e-08
d
yr
n .2636229997412117 2.2282e-09 deg/d
Q 2.772311947016553 1.5622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      9487 days (25.97 yr)  
   first obs. used      1994-02-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:52:45  

Additional Information
 Earth MOID = 1.03421 au 
 Jupiter MOID = 2.23565 au 
 T_jup = 3.505 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457333.5 (2015-Nov-07.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515407037983351 4.417e-08  
q 2.043298452373528 1.088e-07 au
tp 2457883.957505675811
(2017-May-10.45750568)
6.0509e-05 TDB
node 294.1666530710298 0.00016232 deg
peri 303.1742962488527 0.00016305 deg
i 1.862002122699362 4.5709e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      9487 days (25.97 yr)  
   first obs. used      1994-02-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:52:45  

Additional Information
 Jupiter MOID = 2.23565 au 
 T_jup = 3.505 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.950969419613931E-15 -4.779556213905675E-15 -4.355202542390068E-13 -3.085964328847227E-14 -7.513166865793509E-14 -7.14574976238299E-16
q -4.779556213905675E-15 1.183739849007211E-14 1.167745230663713E-12 7.675707388353004E-14 1.941913725626231E-13 1.855506076804928E-15
tp -4.355202542390068E-13 1.167745230663713E-12 3.661354519098055E-9 1.193400047946209E-11 9.620395903515858E-10 -4.044050748634857E-13
node -3.085964328847227E-14 7.675707388353004E-14 1.193400047946209E-11 2.634842708162518E-8 -2.633069599103334E-8 4.133954548859571E-11
peri -7.513166865793509E-14 1.941913725626231E-13 9.620395903515858E-10 -2.633069599103334E-8 2.658643303133496E-8 -4.142915344767494E-11
i -7.14574976238299E-16 1.855506076804928E-15 -4.044050748634857E-13 4.133954548859571E-11 -4.142915344767494E-11 2.089280767713218E-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 17.0   n/a MPO459952  

212968 (2009 BH104)          Discovered 2009-Jan-25 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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Alternate Designations
 2009 BH104 = 1998 FW141 = 1999 TZ41 = 2002 JU74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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