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305658 (2009 BD71)
Classification: Main-belt Asteroid          SPK-ID: 2305658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180867195500463 5.9844e-08  
a 2.404752669622984 1.6602e-08 au
q 2.120783315537989 1.4504e-07 au
i 6.892495257787636 6.7113e-06 deg
node 300.3038839588567 5.5522e-05 deg
peri 149.3843882430824 6.321e-05 deg
M 46.1782942608939 2.8718e-05 deg
tp 2458825.781281248185
(2019-Dec-08.28128125)
0.00010832 TDB
period 1362.084497865901
3.73
1.4105e-05
3.862e-08
d
yr
n .2643007835152989 2.737e-09 deg/d
Q 2.688722023707978 1.8562e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      9512 days (26.04 yr)  
   first obs. used      1994-01-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:42  

Additional Information
 Earth MOID = 1.14061 au 
 Jupiter MOID = 2.47483 au 
 T_jup = 3.504 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457319.5 (2015-Oct-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1168688721444403 5.9762e-08  
q 2.123810472745088 1.4463e-07 au
tp 2457463.801023340111
(2016-Mar-16.30102334)
0.00010835 TDB
node 300.4017922277264 5.552e-05 deg
peri 149.373245057277 6.3404e-05 deg
i 6.892202772196728 6.7099e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      9512 days (26.04 yr)  
   first obs. used      1994-01-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:42  

Additional Information
 Jupiter MOID = 2.47483 au 
 T_jup = 3.504 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.571479635855122E-15 -8.599020748350593E-15 4.66840183577748E-15 -4.164887017089305E-14 8.379534548782679E-14 -3.584483758963984E-15
q -8.599020748350593E-15 2.091786081727801E-14 6.049692821951846E-14 9.935555862324932E-14 -1.898917254751335E-13 8.677128282261691E-15
tp 4.66840183577748E-15 6.049692821951846E-14 1.173931569845335E-8 -2.9667389321791E-11 3.355634359009109E-9 2.299834566092151E-12
node -4.164887017089305E-14 9.935555862324932E-14 -2.9667389321791E-11 3.08246020011371E-9 -3.067970835295039E-9 -4.21399967797376E-11
peri 8.379534548782679E-14 -1.898917254751335E-13 3.355634359009109E-9 -3.067970835295039E-9 4.020119078759529E-9 4.247597121598298E-11
i -3.584483758963984E-15 8.677128282261691E-15 2.299834566092151E-12 -4.21399967797376E-11 4.247597121598298E-11 4.502281521196951E-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 17.1   n/a MPO455252  

305658 (2009 BD71)          Discovered 2009-Jan-26 by PMO NEO Survey Program at Purple Mountain
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 BD71 = 2003 OL18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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