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JPL Small-Body Database Browser
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393686 (2004 SR2)
Classification: Main-belt Asteroid          SPK-ID: 2393686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2490595275062099 7.6489e-08  
a 2.348186206003103 2.2356e-08 au
q 1.763348059039371 1.7384e-07 au
i 13.03078254691277 8.17e-06 deg
node 27.57704123346741 3.3849e-05 deg
peri 314.1267306101078 4.1972e-05 deg
M 146.7145830403559 3.4552e-05 deg
tp 2458464.866157807085
(2018-Dec-12.36615781)
0.0001199 TDB
period 1314.308224809592
3.60
1.8769e-05
5.139e-08
d
yr
n .2739083520930978 3.9116e-09 deg/d
Q 2.933024352966836 2.7924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      6610 days (18.10 yr)  
   first obs. used      2001-12-18  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56664  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:52:02  

Additional Information
 Earth MOID = .783282 au 
 Jupiter MOID = 2.55436 au 
 T_jup = 3.484 
[ 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 17.7   n/a MPO349085  

393686 (2004 SR2)          Discovered 2004-Sep-17 by LINEAR at Socorro
Reference: Last Updated: 2014-05-15

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