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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457175.5 (2015-Jun-02.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747064951648413 5.2506e-08  
q 2.098088276631469 1.3477e-07 au
tp 2456863.212988684484
(2014-Jul-24.71298868)
4.4015e-05 TDB
node 73.71788619906653 2.5254e-05 deg
peri 266.2443559234202 2.6974e-05 deg
i 11.56132089081202 3.7735e-06 deg
  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
 Jupiter MOID = 2.48214 au 
 T_jup = 3.395 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.756881329787089E-15 -7.060266032187774E-15 3.901394090280773E-13 -3.499175819852249E-14 4.577950802223355E-14 -6.270462939349964E-15
q -7.060266032187774E-15 1.816425409432352E-14 -9.392764159139189E-13 9.205420533614561E-14 -1.03905213513221E-13 1.65226480512464E-14
tp 3.901394090280773E-13 -9.392764159139189E-13 1.937356118199627E-9 8.247099174321267E-12 4.537871401105448E-10 -3.120685643732078E-12
node -3.499175819852249E-14 9.205420533614561E-14 8.247099174321267E-12 6.377767906842238E-10 -6.214149696285761E-10 1.43471479377953E-12
peri 4.577950802223355E-14 -1.03905213513221E-13 4.537871401105448E-10 -6.214149696285761E-10 7.275846387661209E-10 -1.992429965640911E-12
i -6.270462939349964E-15 1.65226480512464E-14 -3.120685643732078E-12 1.43471479377953E-12 -1.992429965640911E-12 1.423940211193369E-11

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

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