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JPL Small-Body Database Browser
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173986 (2001 XL158)
Classification: Main-belt Asteroid          SPK-ID: 2173986
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819967736441042 5.8565e-08  
a 3.167185850395969 3.0792e-08 au
q 2.590768244092644 1.9698e-07 au
i 2.431066197615192 6.3945e-06 deg
node 118.226504770956 0.00015107 deg
peri 262.6914859095799 0.00015286 deg
M 148.2668250744042 2.0429e-05 deg
tp 2458152.589063859374
(2018-Feb-03.08906386)
0.00011276 TDB
period 2058.774353989465
5.64
3.0024e-05
8.22e-08
d
yr
n .1748613194556251 2.5501e-09 deg/d
Q 3.743603456699294 3.6396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      8416 days (23.04 yr)  
   first obs. used      1995-12-16  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64005  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:22:27  

Additional Information
 Earth MOID = 1.59498 au 
 Jupiter MOID = 1.71755 au 
 T_jup = 3.176 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456418.5 (2013-May-06.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1801717284925185 5.8491e-08  
q 2.602245372731249 1.975e-07 au
tp 2456097.639153601448
(2012-Jun-19.13915360)
0.00011031 TDB
node 118.2281798348949 0.00015111 deg
peri 263.8205185350974 0.00015292 deg
i 2.42913622658984 6.3861e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      8416 days (23.04 yr)  
   first obs. used      1995-12-16  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64005  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:22:27  

Additional Information
 Jupiter MOID = 1.71755 au 
 T_jup = 3.176 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.421196423036427E-15 -1.147103336408971E-14 -1.192418455941622E-12 7.072461187224019E-15 -2.895356095314184E-13 -3.470196612737984E-15
q -1.147103336408971E-14 3.900673669243593E-14 3.638188388399043E-12 -2.739486933240594E-14 9.226793670890671E-13 1.19027488181707E-14
tp -1.192418455941622E-12 3.638188388399043E-12 1.216794774556527E-8 -8.306352630991477E-11 2.641474516285744E-9 4.553134984917374E-13
node 7.072461187224019E-15 -2.739486933240594E-14 -8.306352630991477E-11 2.283370357081981E-8 -2.283004347442489E-8 1.703940166388652E-10
peri -2.895356095314184E-13 9.226793670890671E-13 2.641474516285744E-9 -2.283004347442489E-8 2.338604472085994E-8 -1.700912089828001E-10
i -3.470196612737984E-15 1.19027488181707E-14 4.553134984917374E-13 1.703940166388652E-10 -1.700912089828001E-10 4.078271858242023E-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 15.7   n/a MPO433119  

173986 (2001 XL158)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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Alternate Designations
 2001 XL158 = 1995 YV5 = 2006 SE322 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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