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312288 (2008 BP21)
Classification: Main-belt Asteroid          SPK-ID: 2312288
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08450983720920827 8.9475e-08  
a 2.99708639480572 3.6097e-08 au
q 2.743803111478756 2.8522e-07 au
i 9.708172008811125 8.3753e-06 deg
node 332.8320967023828 3.1664e-05 deg
peri 7.735856679916258 5.035e-05 deg
M 307.6780234401414 4.0512e-05 deg
tp 2459275.941237775708
(2021-Mar-02.44123778)
0.00021571 TDB
period 1895.166278472162
5.19
3.4238e-05
9.374e-08
d
yr
n .1899569468333003 3.4318e-09 deg/d
Q 3.250369678132685 3.9148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      5489 days (15.03 yr)  
   first obs. used      2005-07-30  
   last obs. used      2020-08-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:58  

Additional Information
 Earth MOID = 1.7352 au 
 Jupiter MOID = 2.11554 au 
 T_jup = 3.227 
[ 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 16.0   n/a MPO437378  

312288 (2008 BP21)          Discovered 2008-Jan-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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