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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2440664552040535 1.5566e-07  
a 2.360085816563681 2.0231e-08 au
q 1.784068037337619 3.625e-07 au
i 2.937465311168344 8.5523e-06 deg
node 17.48416203111512 0.00019432 deg
peri 25.33878151649768 0.00020424 deg
M 20.6070865713302 4.1689e-05 deg
tp 2458524.693889524206
(2019-Feb-10.19388952)
0.00015312 TDB
period 1324.311405050996
3.63
1.7029e-05
4.662e-08
d
yr
n .2718393865875808 3.4954e-09 deg/d
Q 2.936103595789743 2.5169e-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 = .792708 au 
 Jupiter MOID = 2.47902 au 
 T_jup = 3.509 
[ 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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