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100913 (1998 KJ28)
Classification: Main-belt Asteroid          SPK-ID: 2100913
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908725498152724 3.7742e-08  
a 2.313109713371485 6.6512e-09 au
q 1.871600564377796 8.7631e-08 au
i 7.884858955722942 4.6458e-06 deg
node 48.40879892992729 2.3774e-05 deg
peri 193.7897246334805 2.625e-05 deg
M 145.9224090547393 1.0729e-05 deg
tp 2458679.650483346564
(2019-Jul-15.15048335)
3.7582e-05 TDB
period 1284.969369748404
3.52
5.5423e-06
1.517e-08
d
yr
n .2801623201886033 1.2084e-09 deg/d
Q 2.754618862365175 7.9208e-09 au
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      8288 days (22.69 yr)  
   first obs. used      1998-04-25  
   last obs. used      2021-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54377  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:29  

Additional Information
 Earth MOID = .858761 au 
 Jupiter MOID = 2.26054 au 
 T_jup = 3.546 
[ 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 16.3   n/a MPO320189  

100913 (1998 KJ28)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 KJ28 = 2001 DK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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