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JPL Small-Body Database Browser
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(2009 BW2)
Classification: Apollo [NEO]          SPK-ID: 3444376
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398996100999259 1.6259e-06  
a 1.02125984017982 1.6786e-07 au
q .8783859867279509 1.5161e-06 au
i 1.018664640462733 1.1333e-05 deg
node 24.72689651231394 0.00067087 deg
peri 195.022494880073 0.00077461 deg
M 301.1242648717232 0.0011313 deg
tp 2459458.150506663542
(2021-Aug-31.65050666)
0.0011998 TDB
period 376.9665440358235
1.03
9.2938e-05
2.545e-07
d
yr
n .9549919102788837 2.3545e-07 deg/d
Q 1.16413369363169 1.9134e-07 au
  Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      1327 days (3.63 yr)  
   first obs. used      2009-01-20  
   last obs. used      2012-09-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .27947  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:29:58  

Additional Information
 Earth MOID = .016289 au 
 Jupiter MOID = 3.79946 au 
 T_jup = 5.972 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.1   n/a MPO239789  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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