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305628 (2009 BQ2)
Classification: Main-belt Asteroid          SPK-ID: 2305628
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115452013198462 5.3375e-08  
a 2.363452391939334 1.0179e-08 au
q 1.863475379876655 1.2756e-07 au
i 5.12832558470714 5.6456e-06 deg
node 284.7048689403576 5.2039e-05 deg
peri 220.3879465511072 5.656e-05 deg
M 28.55069445979199 1.5049e-05 deg
tp 2458895.247386063617
(2020-Feb-15.74738606)
5.5645e-05 TDB
period 1327.146037391835
3.63
8.5735e-06
2.347e-08
d
yr
n .271258768709047 1.7524e-09 deg/d
Q 2.863429404002012 1.2332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      6631 days (18.15 yr)  
   first obs. used      2002-02-26  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:46  

Additional Information
 Earth MOID = .87938 au 
 Jupiter MOID = 2.17509 au 
 T_jup = 3.514 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457764.5 (2017-Jan-11.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2120582999500752 5.3483e-08  
q 1.862406897871481 1.2806e-07 au
tp 2457568.678783022427
(2016-Jun-29.17878302)
5.8079e-05 TDB
node 284.7245787078445 5.2053e-05 deg
peri 220.5234417389265 5.6535e-05 deg
i 5.127704708587124 5.6454e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      6631 days (18.15 yr)  
   first obs. used      2002-02-26  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:46  

Additional Information
 Jupiter MOID = 2.17509 au 
 T_jup = 3.514 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.860457953474974E-15 -6.835497822646034E-15 8.517079065776829E-13 1.114085172640728E-14 3.476260840033091E-13 -9.240283374234381E-15
q -6.835497822646034E-15 1.639817708661402E-14 -2.206744961211582E-12 -2.523265139191048E-14 -8.91599314767299E-13 2.259708377624852E-14
tp 8.517079065776829E-13 -2.206744961211582E-12 3.373115294862045E-9 -1.18023777773793E-11 1.294532767774063E-9 -7.634255252040455E-12
node 1.114085172640728E-14 -2.523265139191048E-14 -1.18023777773793E-11 2.7094793176462E-9 -2.702299232874485E-9 1.046554293365787E-10
peri 3.476260840033091E-13 -8.91599314767299E-13 1.294532767774063E-9 -2.702299232874485E-9 3.196197053063668E-9 -1.07205605174478E-10
i -9.240283374234381E-15 2.259708377624852E-14 -7.634255252040455E-12 1.046554293365787E-10 -1.07205605174478E-10 3.18709621093243E-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 17.3   n/a MPO455251  

305628 (2009 BQ2)          Discovered 2009-Jan-19 by Lowe, A. at Mayhill
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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