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19558 (1999 JK80)
Classification: Main-belt Asteroid          SPK-ID: 2019558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187582077476151 1.8166e-08  
a 2.407279608550827 7.0324e-09 au
q 2.121395396691951 4.4537e-08 au
i 12.19572293314437 1.4692e-06 deg
node 105.4040570092349 8.6e-06 deg
peri 22.41026522483175 1.0728e-05 deg
M 13.74995838370789 1.0199e-05 deg
tp 2459148.394074355851
(2020-Oct-25.89407436)
3.8588e-05 TDB
period 1364.232000448818
3.74
5.978e-06
1.637e-08
d
yr
n .2638847350608722 1.1563e-09 deg/d
Q 2.693163820409704 7.8676e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2050  
   data-arc span      25886 days (70.87 yr)  
   first obs. used      1950-05-10  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45496  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:55:56  

Additional Information
 Earth MOID = 1.14163 au 
 Jupiter MOID = 2.39228 au 
 T_jup = 3.482 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177980082766801 1.8249e-08  
q 2.123999972970023 4.4721e-08 au
tp 2457784.965409306528
(2017-Jan-31.46540931)
3.7687e-05 TDB
node 105.4599032523184 8.6049e-06 deg
peri 22.53992513043038 1.0773e-05 deg
i 12.19019772748335 1.4691e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2050  
   data-arc span      25886 days (70.87 yr)  
   first obs. used      1950-05-10  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45496  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:55:56  

Additional Information
 Jupiter MOID = 2.39228 au 
 T_jup = 3.482 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.33014776890953E-16 -8.082568821242385E-16 2.18512684437618E-13 9.378967147671701E-14 -2.76248442216792E-14 1.472464999438757E-14
q -8.082568821242385E-16 1.999964276939978E-15 -4.985477688371417E-13 -2.227970152645753E-13 6.593636692486991E-14 -3.50089357155386E-14
tp 2.18512684437618E-13 -4.985477688371417E-13 1.420286136597982E-9 5.585172567955025E-11 2.744559051591405E-10 1.039841789177196E-11
node 9.378967147671701E-14 -2.227970152645753E-13 5.585172567955025E-11 7.404491359502341E-11 -5.574838414375647E-11 8.757460219662711E-12
peri -2.76248442216792E-14 6.593636692486991E-14 2.744559051591405E-10 -5.574838414375647E-11 1.160604799845667E-10 -5.700097159174749E-12
i 1.472464999438757E-14 -3.50089357155386E-14 1.039841789177196E-11 8.757460219662711E-12 -5.700097159174749E-12 2.158371808965397E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.06   n/a MPCxxxxx  
diameter diameter 6.332 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19558 (1999 JK80)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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