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312828 (2011 SW172)
Classification: Main-belt Asteroid          SPK-ID: 2312828
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2441577961859685 1.559e-07  
a 2.35954648459784 2.0291e-08 au
q 1.783444814920082 3.6296e-07 au
i 2.937783200300387 8.5537e-06 deg
node 17.4755267249462 0.00019431 deg
peri 25.28454689914426 0.00020421 deg
M 129.4156297936837 4.2021e-05 deg
tp 2458524.589307150859
(2019-Feb-10.08930715)
0.0001529 TDB
period 1323.857479184115
3.62
1.7077e-05
4.675e-08
d
yr
n .2719325952079567 3.5077e-09 deg/d
Q 2.935648154275598 2.5245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      6559 days (17.96 yr)  
   first obs. used      2000-10-01  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53745  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:45:22  

Additional Information
 Earth MOID = .792623 au 
 Jupiter MOID = 2.48134 au 
 T_jup = 3.510 
[ 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 18.0   n/a MPO455306  

312828 (2011 SW172)          Discovered 2000-Oct-01 by LONEOS at Anderson Mesa
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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