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JPL Small-Body Database Browser
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442342 (2011 SR202)
Classification: Main-belt Asteroid          SPK-ID: 2442342
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940065315950004 1.1427e-07  
a 2.595378504558352 4.3405e-08 au
q 2.091858122712767 3.0726e-07 au
i 12.20255470810797 9.4286e-06 deg
node 194.8533608237142 4.7126e-05 deg
peri 117.7548227515189 5.2238e-05 deg
M 321.0677112721285 2.4674e-05 deg
tp 2458765.660776758080
(2019-Oct-09.16077676)
0.00010735 TDB
period 1527.212541972727
4.18
3.8312e-05
1.049e-07
d
yr
n .2357235748830229 5.9134e-09 deg/d
Q 3.098898886403937 5.1826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      3954 days (10.83 yr)  
   first obs. used      2006-04-02  
   last obs. used      2017-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70661  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:35  

Additional Information
 Earth MOID = 1.11006 au 
 Jupiter MOID = 2.34097 au 
 T_jup = 3.359 
[ 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 17.7   n/a MPO402745  

442342 (2011 SR202)          Discovered 2007-Sep-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SR202 = 2007 TG209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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