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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271180982182634 5.688e-08  
a 3.076997407541664 2.6157e-08 au
q 2.685855348872441 1.772e-07 au
i 13.03702114994383 6.1099e-06 deg
node 114.3358979013818 2.6301e-05 deg
peri 207.2340358942618 3.4651e-05 deg
M 214.8475656058613 2.562e-05 deg
tp 2459395.397160331396
(2021-Jun-29.89716033)
0.00014481 TDB
period 1971.465231800878
5.40
2.5139e-05
6.883e-08
d
yr
n .1826052999530456 2.3285e-09 deg/d
Q 3.468139466210887 2.9482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      780  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1993-05-24  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57307  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:41:31  

Additional Information
 Earth MOID = 1.67845 au 
 Jupiter MOID = 1.82891 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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