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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985799124100833 1.3056e-07  
a 3.143914863529364 9.6787e-08 au
q 2.519596525304944 4.7344e-07 au
i 15.67845895058187 1.0568e-05 deg
node 308.1550561290502 2.3506e-05 deg
peri 323.6923377534236 3.8097e-05 deg
M 331.9596750877972 1.9935e-05 deg
tp 2459159.093408514486
(2020-Nov-05.59340851)
0.00011195 TDB
period 2036.12573120964
5.57
9.4024e-05
2.574e-07
d
yr
n .1768063702952803 8.1646e-09 deg/d
Q 3.768233201753784 1.1601e-07 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      3537 days (9.68 yr)  
   first obs. used      2010-09-10  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48505  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:41:30  

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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