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442870 (2013 BL9)
Classification: Main-belt Asteroid          SPK-ID: 2442870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985798804906143 1.4009e-07  
a 3.143914780646473 1.2206e-07 au
q 2.519596559233021 4.8394e-07 au
i 15.67848512090703 1.7672e-05 deg
node 308.1550702111344 2.3544e-05 deg
peri 323.6922983430408 3.9609e-05 deg
M 331.9597105526248 2.9741e-05 deg
tp 2459159.093201657318
(2020-Nov-05.59320166)
0.00017191 TDB
period 2036.125650692199
5.57
0.00011858
3.247e-07
d
yr
n .1768063772869886 1.0297e-08 deg/d
Q 3.768233002059925 1.463e-07 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      3076 days (8.42 yr)  
   first obs. used      2010-09-10  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:35:27  

Additional Information
 Earth MOID = 1.52114 au 
 Jupiter MOID = 1.53308 au 
 T_jup = 3.122 
[ show covariance matrix ]

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 15.9   n/a MPO472464  

442870 (2013 BL9)          Discovered 2010-Sep-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2013 BL9 = 2010 RQ135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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