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312821 (2011 SF43)
Classification: Main-belt Asteroid          SPK-ID: 2312821
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 .102158939711683 6.5505e-08  
a 2.799761676912274 3.0997e-08 au
q 2.513740992553513 1.856e-07 au
i 3.118659264887798 6.6956e-06 deg
node 355.9595900489851 9.4081e-05 deg
peri 23.78090960045609 9.8483e-05 deg
M 291.2959299717676 3.1974e-05 deg
tp 2459327.057745030813
(2021-Apr-22.55774503)
0.00015531 TDB
period 1711.118251986871
4.68
2.8417e-05
7.78e-08
d
yr
n .2103887323871304 3.4939e-09 deg/d
Q 3.085782361271035 3.4164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      7902 days (21.63 yr)  
   first obs. used      1997-10-05  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58904  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:48:10  

Additional Information
 Earth MOID = 1.51623 au 
 Jupiter MOID = 2.3785 au 
 T_jup = 3.316 
[ 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 16.5   n/a MPO437380  

312821 (2011 SF43)          Discovered 2004-Feb-12 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2011 SF43 = 1997 TZ25 = 2004 CM121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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