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43138 (1999 XJ86)
Classification: Main-belt Asteroid          SPK-ID: 2043138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06443485475560486 3.5927e-08  
a 2.734564692344301 1.3367e-08 au
q 2.558363413573291 1.0089e-07 au
i 12.57555634570712 4.0637e-06 deg
node 97.03907602288444 1.7568e-05 deg
peri 199.6854746162816 3.9254e-05 deg
M 78.55889365548393 3.3068e-05 deg
tp 2459036.067795724443
(2020-Jul-05.56779572)
0.00015211 TDB
period 1651.69833104113
4.52
1.2111e-05
3.316e-08
d
yr
n .2179574763952676 1.5982e-09 deg/d
Q 2.910765971115311 1.4229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      8076 days (22.11 yr)  
   first obs. used      1998-09-27  
   last obs. used      2020-11-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49832  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:41:31  

Additional Information
 Earth MOID = 1.54479 au 
 Jupiter MOID = 2.23294 au 
 T_jup = 3.315 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457098.5 (2015-Mar-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06379199865777432 3.6001e-08  
q 2.560509078478418 1.0117e-07 au
tp 2457392.003536307156
(2016-Jan-04.50353631)
0.00015633 TDB
node 97.07253165737771 1.7558e-05 deg
peri 201.6614237375583 3.9513e-05 deg
i 12.57845076094418 4.0652e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      8076 days (22.11 yr)  
   first obs. used      1998-09-27  
   last obs. used      2020-11-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49832  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:41:31  

Additional Information
 Jupiter MOID = 2.23294 au 
 T_jup = 3.315 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.296036433293965E-15 -3.614859219835593E-15 4.30158979985916E-13 2.294371474685356E-15 1.241771932365111E-13 -1.337452346972376E-15
q -3.614859219835593E-15 1.023572734996093E-14 -1.666613644898154E-12 -7.468445611999574E-15 -4.567152126877193E-13 4.171189973848372E-15
tp 4.30158979985916E-13 -1.666613644898154E-12 2.443760628433931E-8 2.421342750488619E-11 5.547226073076945E-9 1.656333692033766E-12
node 2.294371474685356E-15 -7.468445611999574E-15 2.421342750488619E-11 3.082943809148597E-10 -2.951751490621696E-10 -5.914639185106895E-12
peri 1.241771932365111E-13 -4.567152126877193E-13 5.547226073076945E-9 -2.951751490621696E-10 1.561278477324766E-9 6.061992956620407E-12
i -1.337452346972376E-15 4.171189973848372E-15 1.656333692033766E-12 -5.914639185106895E-12 6.061992956620407E-12 1.652560121999228E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.21   n/a E2021B10  
diameter diameter 3.483 km 0.572 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.401   0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43138 (1999 XJ86)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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