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20456 (1999 LX6)
Classification: Main-belt Asteroid          SPK-ID: 2020456
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1273937917800251 4.6191e-08  
a 3.077404882893903 2.0911e-08 au
q 2.685362606019685 1.535e-07 au
i 13.03714069014297 4.2044e-06 deg
node 114.3362217032032 2.334e-05 deg
peri 207.1392201113969 3.189e-05 deg
M 288.016804126113 2.3484e-05 deg
tp 2459394.779328514404
(2021-Jun-29.27932851)		 0.00012979 TDB
period 1971.856855506421
5.40		 2.0098e-05
5.503e-08		 d
yr
n .1825690333427085 1.8608e-09 deg/d
Q 3.469447159768122 2.3575e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1060  
   data-arc span      9968 days (27.29 yr)  
   first obs. used      1993-05-24  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:02:43  

Additional Information
 Earth MOID = 1.67874 au 
 Jupiter MOID = 1.82984 au 
 T_jup = 3.177 
[ 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 13.8   n/a MPO319341  
diameter diameter 7.669 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20456 (1999 LX6)          Discovered 1999-Jun-08 by Spacewatch at Kitt Peak
Reference: 20010109/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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