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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156166439173184 6.2688e-08  
a 2.389007830783835 2.8387e-08 au
q 1.873897980018032 1.3676e-07 au
i 1.481637803685716 5.101e-06 deg
node 293.384321947924 0.00023544 deg
peri 108.3831484641863 0.00024233 deg
M 348.6228494162153 3.1807e-05 deg
tp 2458643.124155971426
(2019-Jun-08.62415597)
0.00011887 TDB
period 1348.729283023067
3.69
2.4039e-05
6.582e-08
d
yr
n .2669179089765807 4.7574e-09 deg/d
Q 2.904117681549638 3.4508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      5613 days (15.37 yr)  
   first obs. used      2000-09-27  
   last obs. used      2016-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49698  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jul-11 15:24:02  

Additional Information
 Earth MOID = .882463 au 
 Jupiter MOID = 2.50812 au 
 T_jup = 3.501 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456309.5 (2013-Jan-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152142547700668 6.3103e-08  
q 1.874656355221125 1.3727e-07 au
tp 2455942.652137515764
(2012-Jan-16.15213752)
0.00014512 TDB
node 293.7364991534793 0.00023539 deg
peri 107.545683215865 0.00024242 deg
i 1.48135123784965 5.1073e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      5613 days (15.37 yr)  
   first obs. used      2000-09-27  
   last obs. used      2016-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49698  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jul-11 15:24:02  

Additional Information
 Jupiter MOID = 2.50812 au 
 T_jup = 3.501 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.982031989409672E-15 -8.600034715400584E-15 -3.012499636845799E-12 6.28829781912788E-14 -9.766252247407424E-13 -5.819480206781227E-15
q -8.600034715400584E-15 1.884405279600449E-14 5.209110061886773E-12 -8.601650454372401E-14 1.602002631195909E-12 1.21756583325815E-14
tp -3.012499636845799E-12 5.209110061886773E-12 2.105907532621841E-8 -8.103864077459657E-10 8.45044757880513E-9 1.097950821728443E-11
node 6.28829781912788E-14 -8.601650454372401E-14 -8.103864077459657E-10 5.541008696946938E-8 -5.568890674580865E-8 2.606528189546029E-10
peri -9.766252247407424E-13 1.602002631195909E-12 8.45044757880513E-9 -5.568890674580865E-8 5.87663501211393E-8 -2.567691552221223E-10
i -5.819480206781227E-15 1.21756583325815E-14 1.097950821728443E-11 2.606528189546029E-10 -2.567691552221223E-10 2.608469709563485E-11

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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