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100585 (1997 LN9)
Classification: Main-belt Asteroid          SPK-ID: 2100585
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1737294572274158 5.2171e-08  
a 2.543318668063088 1.1134e-08 au
q 2.101469296304133 1.3379e-07 au
i 11.56726235317328 3.7755e-06 deg
node 73.57650882053272 2.5218e-05 deg
peri 266.9704758692532 2.7002e-05 deg
M 158.6522359487131 1.1751e-05 deg
tp 2458347.605076540605
(2018-Aug-17.10507654)
4.682e-05 TDB
period 1481.492971339928
4.06
9.7281e-06
2.663e-08
d
yr
n .2429981153905846 1.5956e-09 deg/d
Q 2.985168039822042 1.3068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      10746 days (29.42 yr)  
   first obs. used      1990-11-17  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:53:38  

Additional Information
 Earth MOID = 1.13116 au 
 Jupiter MOID = 2.48214 au 
 T_jup = 3.395 
[ 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 15.7   n/a MPO453460  
diameter diameter 2.236 km 0.490 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100585 (1997 LN9)          Discovered 1997-Jun-07 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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