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357073 (2001 RK20)
Classification: Main-belt Asteroid          SPK-ID: 2357073
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .165504843063667 6.1272e-08  
a 2.657393231372885 3.039e-08 au
q 2.217581781656065 1.6074e-07 au
i 13.54385294996509 8.2854e-06 deg
node 161.7314558922594 2.1768e-05 deg
peri 112.6424862830199 3.613e-05 deg
M 165.8880741519053 3.3934e-05 deg
tp 2458271.387022811656
(2018-Jun-01.88702281)		 0.00014172 TDB
period 1582.275718913029
4.33		 2.7142e-05
7.431e-08		 d
yr
n .2275203971702909 3.9029e-09 deg/d
Q 3.097204681089706 3.5419e-08 au
   Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      6679 days (18.29 yr)  
   first obs. used      2001-08-16  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:28:13  

Additional Information
 Earth MOID = 1.24202 au 
 Jupiter MOID = 2.19769 au 
 T_jup = 3.328 
[ 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 16.5   n/a MPO311057  

357073 (2001 RK20)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2001 RK20 = 2004 DC57 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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