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JPL Small-Body Database Browser
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212122 (2005 EK197)
Classification: Main-belt Asteroid          SPK-ID: 2212122
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05974382446199346 4.6039e-08  
a 2.537171316211489 2.0212e-08 au
q 2.385590998465745 1.1291e-07 au
i 7.234177642794918 5.6613e-06 deg
node 342.18827972 3.5917e-05 deg
peri 210.3909670437299 6.0073e-05 deg
M 162.914444947745 4.721e-05 deg
tp 2457932.494238091392
(2017-Jun-27.99423809)
0.00019253 TDB
period 1476.124933944524
4.04
1.7639e-05
4.829e-08
d
yr
n .2438817959927026 2.9143e-09 deg/d
Q 2.688751633957233 2.142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      6789 days (18.59 yr)  
   first obs. used      2001-03-23  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53189  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:43:32  

Additional Information
 Earth MOID = 1.38952 au 
 Jupiter MOID = 2.28587 au 
 T_jup = 3.434 
[ 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 MPO454522  
diameter diameter 2.927 km 0.827 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212122 (2005 EK197)          Discovered 2005-Mar-11 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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