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90510 (2004 EW20)
Classification: Main-belt Asteroid          SPK-ID: 2090510
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2954267810787268 3.9871e-08  
a 3.141064648459197 1.8264e-08 au
q 2.213110030204714 1.2565e-07 au
i 25.03825818100761 4.8764e-06 deg
node 139.0730955448909 1.2822e-05 deg
peri 151.3123038621198 1.5205e-05 deg
M 353.7868218645279 8.5895e-06 deg
tp 2459431.593367460533
(2021-Aug-05.09336746)
4.863e-05 TDB
period 2033.357487960074
5.57
1.7735e-05
4.856e-08
d
yr
n .1770470771281655 1.5442e-09 deg/d
Q 4.06901926671368 2.366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      8953 days (24.51 yr)  
   first obs. used      1997-01-31  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:00:54  

Additional Information
 Earth MOID = 1.22203 au 
 Jupiter MOID = 1.38271 au 
 T_jup = 3.002 
[ 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 14.27   n/a MPO637232  
diameter diameter 7.745 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90510 (2004 EW20)          Discovered 2004-Mar-15 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2004 EW20 = 2003 EY15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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