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136499 (2005 JX20)
Classification: Main-belt Asteroid          SPK-ID: 2136499
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09128834026621084 4.4738e-08  
a 3.135005414006675 3.1053e-08 au
q 2.848815973036421 1.3689e-07 au
i 12.98118208694937 4.9075e-06 deg
node 145.6098458884609 2.158e-05 deg
peri 83.39937037474537 3.5765e-05 deg
M 259.1312862635982 2.8368e-05 deg
tp 2459568.580460465812
(2021-Dec-20.08046047)
0.00016252 TDB
period 2027.476689175709
5.55
3.0124e-05
8.248e-08
d
yr
n .1775606111389432 2.6382e-09 deg/d
Q 3.42119485497693 3.3888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      8958 days (24.53 yr)  
   first obs. used      1995-07-22  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56457  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:40:47  

Additional Information
 Earth MOID = 1.87799 au 
 Jupiter MOID = 1.70007 au 
 T_jup = 3.166 
[ 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 15.4   n/a MPO469435  
diameter diameter 4.047 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136499 (2005 JX20)          Discovered 2005-May-04 by CSS at Catalina
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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Alternate Designations
 2005 JX20 = 2004 CR117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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