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243081 (2007 LY20)
Classification: Main-belt Asteroid          SPK-ID: 2243081
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01594839115078629 6.4702e-08  
a 3.143431727365537 5.1642e-08 au
q 3.09329904862172 2.0839e-07 au
i 9.382031261580043 9.8909e-06 deg
node 198.6328345658742 3.5502e-05 deg
peri 122.3323724321273 0.0002781 deg
M 40.64367757941503 0.00027717 deg
tp 2458770.676215416842
(2019-Oct-14.17621542)
0.0015664 TDB
period 2035.656401620523
5.57
5.0165e-05
1.373e-07
d
yr
n .1768471337861414 4.358e-09 deg/d
Q 3.193564406109354 5.2466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      6247 days (17.10 yr)  
   first obs. used      2001-04-29  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62647  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:31:03  

Additional Information
 Earth MOID = 2.0945 au 
 Jupiter MOID = 1.83893 au 
 T_jup = 3.189 
[ 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 15.9   n/a MPO450091  
diameter diameter 4.599 km 1.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.021   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243081 (2007 LY20)          Discovered 2007-Jun-12 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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