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JPL Small-Body Database Browser
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(2009 BD)
Classification: Apollo [NEO]          SPK-ID: 3444297
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05152206593648898 5.4062e-08  
a 1.061712905436526 7.1702e-08 au
q 1.007011263117004 2.4835e-08 au
i 1.267136246995439 1.3662e-06 deg
node 253.2686503426418 5.3766e-06 deg
peri 316.8043213029908 3.7912e-05 deg
M 114.6616570515222 0.00042012 deg
tp 2459269.230369152865
(2021-Feb-23.73036915)
0.00045395 TDB
period 399.5849029495627
1.09
4.0478e-05
1.108e-07
d
yr
n .9009349385891106 9.1265e-08 deg/d
Q 1.116414547756047 7.5396e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 5.600853384495416E-11 8.508E-12
A2 [EST] -1.146895624516254E-12 8.37E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      885 days (2.42 yr)  
   first obs. used      2009-01-16  
   last obs. used      2011-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .28349  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:29:51  

Additional Information
 Earth MOID = .00451976 au 
 Jupiter MOID = 3.83952 au 
 T_jup = 5.803 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 28.1   n/a MPO201128  

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