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JPL Small-Body Database Browser
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214089 (2004 JK20)
Classification: Main-belt Asteroid          SPK-ID: 2214089
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110780474887317 7.5192e-08  
a 3.058780654341437 5.8848e-08 au
q 2.413139206126741 2.1801e-07 au
i 10.15465220434548 9.3498e-06 deg
node 58.37813189772606 4.5732e-05 deg
peri 243.9727467414063 5.584e-05 deg
M 237.0696489579165 4.3384e-05 deg
tp 2459267.733050045146
(2021-Feb-22.23305005)
0.00024845 TDB
period 1953.983666198284
5.35
5.6389e-05
1.544e-07
d
yr
n .184239001700779 5.3169e-09 deg/d
Q 3.704422102556132 7.127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      5442 days (14.90 yr)  
   first obs. used      2004-05-14  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67241  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:28:02  

Additional Information
 Earth MOID = 1.4181 au 
 Jupiter MOID = 1.62708 au 
 T_jup = 3.177 
[ 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 15.5   n/a MPO433400  
diameter diameter 3.078 km 0.496 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.118   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214089 (2004 JK20)          Discovered 2004-May-14 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2004 JK20 = 2005 SW270 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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