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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819968250476139 5.6999e-08  
a 3.167185831423941 2.8695e-08 au
q 2.590768065768996 1.9006e-07 au
i 2.431065173706779 5.9826e-06 deg
node 118.2263914068132 0.00014353 deg
peri 262.6916067299205 0.00014477 deg
M 148.266822017081 1.9028e-05 deg
tp 2458152.589088962363
(2018-Feb-03.08908896)
0.0001025 TDB
period 2058.774335490806
5.64
2.7979e-05
7.66e-08
d
yr
n .1748613210268026 2.3764e-09 deg/d
Q 3.743603597078885 3.3917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1995-12-16  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:34:20  

Additional Information
 Earth MOID = 1.59498 au 
 Jupiter MOID = 1.71755 au 
 T_jup = 3.176 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456955.5 (2014-Oct-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1810406936278658 5.6678e-08  
q 2.594225679475984 1.886e-07 au
tp 2456095.677213461246
(2012-Jun-17.17721346)
9.2871e-05 TDB
node 118.2307161171568 0.00014353 deg
peri 263.1587780651739 0.0001448 deg
i 2.430839997879124 5.9813e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1995-12-16  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:34:20  

Additional Information
 Jupiter MOID = 1.71755 au 
 T_jup = 3.176 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.212377977693254E-15 -1.061777931866969E-14 -2.050808996236906E-12 -3.476904168385014E-15 -4.747919176118646E-13 -2.375717112225551E-15
q -1.061777931866969E-14 3.556900353527922E-14 7.020179371329302E-12 1.190801560489557E-14 1.65377989765051E-12 8.121404600049194E-15
tp -2.050808996236906E-12 7.020179371329302E-12 8.624989166912623E-9 -4.156309391058032E-11 1.816387664753421E-9 6.928731515543665E-13
node -3.476904168385014E-15 1.190801560489557E-14 -4.156309391058032E-11 2.06019660615625E-8 -2.059076407459168E-8 2.734974894624185E-10
peri -4.747919176118646E-13 1.65377989765051E-12 1.816387664753421E-9 -2.059076407459168E-8 2.096600255399615E-8 -2.730364750069831E-10
i -2.375717112225551E-15 8.121404600049194E-15 6.928731515543665E-13 2.734974894624185E-10 -2.730364750069831E-10 3.577540426135194E-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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