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212113 (2005 EN177)
Classification: Main-belt Asteroid          SPK-ID: 2212113
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2615918828425349 3.8204e-08  
a 2.554389865076682 1.7757e-08 au
q 1.886182210757384 9.7848e-08 au
i 5.806355792371589 1.0981e-05 deg
node 12.78781166679587 3.6281e-05 deg
peri 275.4883731746491 4.5267e-05 deg
M 198.0764044820703 2.7777e-05 deg
tp 2459671.213176717442
(2022-Apr-01.71317672)
0.00011591 TDB
period 1491.177013738821
4.08
1.5549e-05
4.257e-08
d
yr
n .24142003040764 2.5173e-09 deg/d
Q 3.222597519395979 2.2402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      6825 days (18.69 yr)  
   first obs. used      2001-04-27  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 00:55:12  

Additional Information
 Earth MOID = .880974 au 
 Jupiter MOID = 2.0101 au 
 T_jup = 3.383 
[ 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 16.6   n/a MPO413063  
diameter diameter 2.760 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212113 (2005 EN177)          Discovered 2005-Mar-08 by Mt. Lemmon Survey at Mount Lemmon
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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