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JPL Small-Body Database Browser
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154242 (2002 KR2)
Classification: Main-belt Asteroid          SPK-ID: 2154242
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2778065408715388 4.1982e-08  
a 3.139410909769514 2.0764e-08 au
q 2.267262024552074 1.3519e-07 au
i 2.090610860562836 5.8386e-06 deg
node 204.6372043114499 0.00013875 deg
peri 73.71083160821567 0.00013952 deg
M 50.89051325998135 1.0178e-05 deg
tp 2458713.286399152607
(2019-Aug-17.78639915)
5.78e-05 TDB
period 2031.751886188373
5.56
2.0157e-05
5.519e-08
d
yr
n .1771869894386419 1.7579e-09 deg/d
Q 4.011559794986954 2.6533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      7611 days (20.84 yr)  
   first obs. used      1998-10-18  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58755  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:37:20  

Additional Information
 Earth MOID = 1.25194 au 
 Jupiter MOID = 1.15082 au 
 T_jup = 3.149 
[ 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 MPO436780  

154242 (2002 KR2)          Discovered 2002-May-18 by NEAT at Palomar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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