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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457051.5 (2015-Jan-29.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09359059265982067 4.4686e-08  
q 2.84375779313497 1.3751e-07 au
tp 2457536.451721678458
(2016-May-27.95172168)
0.00015052 TDB
node 145.6481333323473 2.157e-05 deg
peri 82.46332590105767 3.5166e-05 deg
i 12.98155021147423 4.9081e-06 deg
  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
 Jupiter MOID = 1.70007 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.996848145116424E-15 -6.019539882409305E-15 3.272342312318696E-13 2.310285637070816E-15 6.858009203535832E-14 -4.894532099390318E-15
q -6.019539882409305E-15 1.890869822526785E-14 -1.438044614035444E-13 -1.059828903890196E-14 -8.593882077566482E-14 1.475554908590729E-14
tp 3.272342312318696E-13 -1.438044614035444E-13 2.265498308139029E-8 6.367894281269393E-12 4.205575132343369E-9 3.85014072481511E-12
node 2.310285637070816E-15 -1.059828903890196E-14 6.367894281269393E-12 4.652821024797576E-10 -4.521435726806574E-10 5.530330894736605E-12
peri 6.858009203535832E-14 -8.593882077566482E-14 4.205575132343369E-9 -4.521435726806574E-10 1.236657090819534E-9 -4.750483964801615E-12
i -4.894532099390318E-15 1.475554908590729E-14 3.85014072481511E-12 5.530330894736605E-12 -4.750483964801615E-12 2.408993132378533E-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 15.4   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

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