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120204 (2004 EY13)
Classification: Main-belt Asteroid          SPK-ID: 2120204
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976021800545555 3.9834e-08  
a 3.095998134460384 2.6578e-08 au
q 2.484222153646175 1.2689e-07 au
i 11.81854274965967 6.9417e-06 deg
node 156.6687777594557 2.4624e-05 deg
peri 109.3186795962015 3.1393e-05 deg
M 284.2788101853659 1.9991e-05 deg
tp 2459419.018240707384
(2021-Jul-23.51824071)
0.00011285 TDB
period 1989.754347805293
5.45
2.5622e-05
7.015e-08
d
yr
n .1809268568238493 2.3298e-09 deg/d
Q 3.707774115274592 3.183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1999-05-07  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:48  

Additional Information
 Earth MOID = 1.49942 au 
 Jupiter MOID = 1.62035 au 
 T_jup = 3.161 
[ 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 15.15   n/a E2021B55  
diameter diameter 5.146 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

120204 (2004 EY13)          Discovered 2004-Mar-11 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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