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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1277041616750852 4.6179e-08  
a 3.079304779937255 2.08e-08 au
q 2.686064744473285 1.536e-07 au
i 13.03698551091082 4.1923e-06 deg
node 114.3362546364884 2.3235e-05 deg
peri 206.9179428142602 3.1724e-05 deg
M 324.7383059006679 2.3465e-05 deg
tp 2459393.820590867107
(2021-Jun-28.32059087)		 0.00012921 TDB
period 1973.683184821136
5.40		 1.9997e-05
5.475e-08		 d
yr
n .1824000947916192 1.8481e-09 deg/d
Q 3.472544815401226 2.3456e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      9968 days (27.29 yr)  
   first obs. used      1993-05-24  
   last obs. used      2020-09-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:21:25  

Additional Information
 Earth MOID = 1.67734 au 
 Jupiter MOID = 1.82579 au 
 T_jup = 3.176 
[ 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 13.84   n/a E2021B10  
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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