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90290 (2003 EX20)
Classification: Main-belt Asteroid          SPK-ID: 2090290
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770077486660437 3.9448e-08  
a 2.776545044596257 1.3022e-08 au
q 2.285075057182413 1.0789e-07 au
i 10.07726041620768 4.6387e-06 deg
node 165.4379893208238 1.8095e-05 deg
peri 217.8879054561751 2.0843e-05 deg
M 127.7065158793267 9.6578e-06 deg
tp 2458797.031913302476
(2019-Nov-09.53191330)
4.5358e-05 TDB
period 1689.8786230691
4.63
1.1889e-05
3.255e-08
d
yr
n .2130330516556155 1.4987e-09 deg/d
Q 3.2680150320101 1.5327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      8466 days (23.18 yr)  
   first obs. used      1998-03-03  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:16:09  

Additional Information
 Earth MOID = 1.29572 au 
 Jupiter MOID = 2.21984 au 
 T_jup = 3.290 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.73   n/a MPCxxxxx  
diameter diameter 3.606 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.196   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

90290 (2003 EX20)          Discovered 2003-Mar-06 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 2003 EX20 = 2004 GP42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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