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305637 (2009 BG31)
Classification: Main-belt Asteroid          SPK-ID: 2305637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2046133511141724 4.8414e-08  
a 2.398910512710381 2.0221e-08 au
q 1.908061393681692 1.2192e-07 au
i 2.62161070508396 6.7067e-06 deg
node 83.99094203565582 0.00012448 deg
peri 259.9937543797319 0.00012604 deg
M 254.9729956247094 2.5241e-05 deg
tp 2459792.429604517148
(2022-Jul-31.92960452)
9.8899e-05 TDB
period 1357.123898505736
3.72
1.7159e-05
4.698e-08
d
yr
n .2652668635460466 3.354e-09 deg/d
Q 2.88975963173907 2.4359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1999-05-16  
   last obs. used      2021-05-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 05:51:45  

Additional Information
 Earth MOID = .901723 au 
 Jupiter MOID = 2.52064 au 
 T_jup = 3.497 
[ 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 17.5   n/a MPO455251  

305637 (2009 BG31)          Discovered 2009-Jan-16 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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