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442339 (2011 SR179)
Classification: Main-belt Asteroid          SPK-ID: 2442339
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955706444937457 1.6654e-07  
a 2.740903172961586 1.0974e-07 au
q 2.204862972930536 5.3128e-07 au
i 7.952362142022659 9.8042e-06 deg
node 207.4021561426268 6.1259e-05 deg
peri 165.818511599335 7.1833e-05 deg
M 333.9550651911462 6.0839e-05 deg
tp 2459120.411197817493
(2020-Sep-27.91119782)
0.00028682 TDB
period 1657.444394893347
4.54
9.9539e-05
2.725e-07
d
yr
n .2172018567314683 1.3044e-08 deg/d
Q 3.276943372992636 1.312e-07 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      3775 days (10.34 yr)  
   first obs. used      2009-03-03  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:52  

Additional Information
 Earth MOID = 1.20679 au 
 Jupiter MOID = 2.19584 au 
 T_jup = 3.308 
[ 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 MPO477088  

442339 (2011 SR179)          Discovered 2011-Sep-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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