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212088 (2005 EY121)
Classification: Main-belt Asteroid          SPK-ID: 2212088
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134847429713421 3.5393e-08  
a 2.441467246782626 1.5385e-08 au
q 2.112241663824486 8.9335e-08 au
i 8.878972104086809 5.4963e-06 deg
node 181.9370794266833 2.6068e-05 deg
peri 111.6980639104728 3.4038e-05 deg
M 244.7649050559961 2.4282e-05 deg
tp 2459446.522783550526
(2021-Aug-20.02278355)
9.6172e-05 TDB
period 1393.396709190148
3.81
1.3171e-05
3.606e-08
d
yr
n .2583614541541688 2.4422e-09 deg/d
Q 2.770692829740765 1.746e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      6996 days (19.15 yr)  
   first obs. used      2001-02-20  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:43:24  

Additional Information
 Earth MOID = 1.11589 au 
 Jupiter MOID = 2.44934 au 
 T_jup = 3.472 
[ 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 2.805 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212088 (2005 EY121)          Discovered 2005-Mar-08 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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