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305654 (2009 BY61)
Classification: Main-belt Asteroid          SPK-ID: 2305654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157676526369288 6.2453e-08  
a 2.388990019437103 2.2706e-08 au
q 1.873523250770108 1.3676e-07 au
i 1.481752701010315 5.0944e-06 deg
node 293.3830189283311 0.00021558 deg
peri 108.3384758833815 0.00021896 deg
M 95.41354387407249 2.4509e-05 deg
tp 2458643.039995901900
(2019-Jun-08.53999590)
9.1679e-05 TDB
period 1348.714199790717
3.69
1.9228e-05
5.264e-08
d
yr
n .2669208940306716 3.8053e-09 deg/d
Q 2.904456788104097 2.7605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      7067 days (19.35 yr)  
   first obs. used      2000-09-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49201  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:41  

Additional Information
 Earth MOID = .882641 au 
 Jupiter MOID = 2.50949 au 
 T_jup = 3.501 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a MPO360529  

305654 (2009 BY61)          Discovered 2009-Jan-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 BY61 = 2000 SF312 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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