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JPL Small-Body Database Browser
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(2015 XL261)
Classification: Apollo [NEO]          SPK-ID: 3736503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2457369.5 (2015-Dec-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4470060115864007 0.00090246  
a 1.567745147617108 0.0022464 au
q .8669536419968514 0.00017261 au
i 1.486696104815376 0.0022459 deg
node 306.9408237990576 0.019978 deg
peri 192.159082445589 0.015553 deg
M 337.8657317948821 0.055849 deg
tp 2457413.583319737667
(2016-Jan-26.08331974)
0.016483 TDB
period 716.9875669027377
1.96
1.541
0.004219
d
yr
n .5021007568585014 0.0010792 deg/d
Q 2.268536653237364 0.0032505 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      8 days  
   first obs. used      2015-12-10  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .41716  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:29:56  

Additional Information
 Earth MOID = .0163503 au 
 Jupiter MOID = 2.77706 au 
 T_jup = 4.301 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.5   n/a MPO358593  

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