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JPL Small-Body Database Browser
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154718 (2004 LG18)
Classification: Main-belt Asteroid          SPK-ID: 2154718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1847231484951128 1.1855e-07  
a 2.320052853406433 2.8407e-08 au
q 1.891485385650126 2.8584e-07 au
i 25.90376918038757 1.1467e-05 deg
node 320.5914471040043 1.6246e-05 deg
peri 188.6196146857419 3.394e-05 deg
M 296.054450277627 4.4548e-05 deg
tp 2459229.773082210432
(2021-Jan-15.27308221)
0.00016289 TDB
period 1290.759246798331
3.53
2.3707e-05
6.491e-08
d
yr
n .2789056138028554 5.1225e-09 deg/d
Q 2.74862032116274 3.3655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      6218 days (17.02 yr)  
   first obs. used      2002-12-27  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51847  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 20:05:14  

Additional Information
 Earth MOID = .905925 au 
 Jupiter MOID = 2.28985 au 
 T_jup = 3.423 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO348350  
diameter diameter 1.986 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.258   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154718 (2004 LG18)          Discovered 2004-Jun-15 by Siding Spring Survey at Siding Spring
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2004 LG18 = 2002 YA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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