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JPL Small-Body Database Browser
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390598 (2001 SJ304)
Classification: Main-belt Asteroid          SPK-ID: 2390598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .114561722087396 6.5721e-08  
a 2.292287336274922 3.0469e-08 au
q 2.029678951512137 1.5945e-07 au
i 6.89989373931016 9.9847e-06 deg
node 359.5116909020749 5.8553e-05 deg
peri 289.1970324422937 8.2127e-05 deg
M 204.355005235229 6.7837e-05 deg
tp 2459548.568280569518
(2021-Nov-30.06828057)
0.00024545 TDB
period 1267.657731642551
3.47
2.5274e-05
6.92e-08
d
yr
n .2839883282481421 5.6621e-09 deg/d
Q 2.554895721037707 3.3959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6165 days (16.88 yr)  
   first obs. used      2001-09-20  
   last obs. used      2018-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6619  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:24:25  

Additional Information
 Earth MOID = 1.0263 au 
 Jupiter MOID = 2.61144 au 
 T_jup = 3.579 
[ 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 17.0   n/a MPO455776  

390598 (2001 SJ304)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

Alternate Designations
 2001 SJ304 = 2007 EA175 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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