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393131 (2013 BL47)
Classification: Main-belt Asteroid          SPK-ID: 2393131
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0830171601365863 6.2109e-08  
a 3.087878300794022 5.2017e-08 au
q 2.831531413414714 2.118e-07 au
i 4.900616924183238 7.353e-06 deg
node 93.06097786080811 7.9371e-05 deg
peri 203.7765841973908 0.00010036 deg
M 311.6682872215454 5.8505e-05 deg
tp 2459266.583764033291
(2021-Feb-21.08376403)
0.00031861 TDB
period 1981.931728574829
5.43
5.0081e-05
1.371e-07
d
yr
n .181640969166415 4.5898e-09 deg/d
Q 3.34422518817333 5.6336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6314 days (17.29 yr)  
   first obs. used      2003-04-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:19:43  

Additional Information
 Earth MOID = 1.81645 au 
 Jupiter MOID = 1.8109 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457791.5 (2017-Feb-07.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08187945761922423 6.2076e-08  
q 2.836375578935013 2.1183e-07 au
tp 2457285.361136242207
(2015-Sep-19.86113624)
0.00035243 TDB
node 93.06146272178073 7.9386e-05 deg
peri 203.9546456311958 0.00010095 deg
i 4.899597159444589 7.3518e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6314 days (17.29 yr)  
   first obs. used      2003-04-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:19:43  

Additional Information
 Jupiter MOID = 1.8109 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.853452907411963E-15 -1.284142622971355E-14 -1.968596627768644E-12 -4.379908598290956E-14 -2.333736035635832E-13 3.83898219911488E-16
q -1.284142622971355E-14 4.487348732298045E-14 -4.291626826782771E-12 1.354069289791755E-13 -1.087071974530209E-12 7.85539058378588E-16
tp -1.968596627768644E-12 -4.291626826782771E-12 1.242054320188669E-7 1.787956233010958E-10 2.202833678901663E-8 -1.239512870733606E-11
node -4.379908598290956E-14 1.354069289791755E-13 1.787956233010958E-10 6.3020751561574E-9 -6.24732767412555E-9 -2.27612208965274E-10
peri -2.333736035635832E-13 -1.087071974530209E-12 2.202833678901663E-8 -6.24732767412555E-9 1.019016209591303E-8 2.246437436633337E-10
i 3.83898219911488E-16 7.85539058378588E-16 -1.239512870733606E-11 -2.27612208965274E-10 2.246437436633337E-10 5.404877933741639E-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 16.2   n/a MPO472036  

393131 (2013 BL47)          Discovered 2009-Apr-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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