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JPL Small-Body Database Browser
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471323 (2011 KW15)
Classification: Apollo [NEO, PHA]          SPK-ID: 2471323
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4936771908418025 8.2828e-08  
a 1.169871687880425 1.4638e-08 au
q .592332719362259 9.3952e-08 au
i 23.65846810674308 3.0666e-05 deg
node 283.3768816670462 3.6809e-05 deg
peri 97.48743543463681 3.2771e-05 deg
M 336.9172598762351 4.2304e-05 deg
tp 2459030.134024410711
(2020-Jun-29.63402441)
5.4841e-05 TDB
period 462.1742795982997
1.27
8.6745e-06
2.375e-08
d
yr
n .7789269457246629 1.462e-08 deg/d
Q 1.747410656398591 2.1865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      1886 days (5.16 yr)  
   first obs. used      2011-05-26  
   last obs. used      2016-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3862  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:20:40  

Additional Information
 Earth MOID = .0436866 au 
 Jupiter MOID = 3.92922 au 
 T_jup = 5.203 
[ 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 19.4   n/a MPO258398  

471323 (2011 KW15)          Discovered 2011-May-26 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2016-08-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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