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212104 (2005 EH156)
Classification: Main-belt Asteroid          SPK-ID: 2212104
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126601638639234 6.1566e-08  
a 2.360653491334118 1.3874e-08 au
q 2.06179089107179 1.4582e-07 au
i 6.749500706587606 6.3217e-06 deg
node 19.32414214406742 3.9173e-05 deg
peri 143.1283896006919 4.3664e-05 deg
M 61.00756742081732 1.8118e-05 deg
tp 2458775.993975082692
(2019-Oct-19.49397508)
6.6208e-05 TDB
period 1324.78924151715
3.63
1.1679e-05
3.198e-08
d
yr
n .2717413372014765 2.3957e-09 deg/d
Q 2.659516091596447 1.5631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1998-04-19  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:43:24  

Additional Information
 Earth MOID = 1.07338 au 
 Jupiter MOID = 2.31681 au 
 T_jup = 3.531 
[ 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 16.7   n/a MPO418135  
diameter diameter 3.045 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212104 (2005 EH156)          Discovered 2005-Mar-09 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 EH156 = 1998 HX129 = 2003 SP135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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