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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187582077954076 1.8309e-08  
a 2.407279609930941 7.262e-09 au
q 2.121395397793115 4.5087e-08 au
i 12.19572290776824 1.4748e-06 deg
node 105.4040571059352 8.6192e-06 deg
peri 22.4102643137461 1.0946e-05 deg
M 13.74995909071508 1.0556e-05 deg
tp 2459148.394071631814
(2020-Oct-25.89407163)
3.9927e-05 TDB
period 1364.232001622006
3.74
6.1732e-06
1.69e-08
d
yr
n .2638847348339412 1.1941e-09 deg/d
Q 2.693163822068767 8.1245e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2007  
   data-arc span      25867 days (70.82 yr)  
   first obs. used      1950-05-10  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45888  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:19:26  

Additional Information
 Earth MOID = 1.14163 au 
 Jupiter MOID = 2.39228 au 
 T_jup = 3.482 
[ 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 14.04   n/a E2021B10  
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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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