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6814 Steffl (1979 MC2)
Classification: Main-belt Asteroid          SPK-ID: 2006814
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03730565523678076 5.2538e-08  
a 2.826930323864634 2.2682e-08 AU
q 2.721469835824139 1.4218e-07 AU
i 2.163671231180782 6.9747e-06 deg
node 195.0743624132575 0.00014118 deg
peri 100.4900816834728 0.00017363 deg
M 118.8101005487083 0.00010092 deg
tp 2456227.543110181439
(2012-Oct-27.04311018)
0.00048644 JED
period 1736.08539494603
4.75
2.0895e-05
5.721e-08
d
yr
n .2073630715677966 2.4957e-09 deg/d
Q 2.932390811905129 2.3529e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1331  
   data-arc span      23251 days (63.66 yr)  
   first obs. used      1950-06-15  
   last obs. used      2014-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51458  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:48:38  

Additional Information
 Earth MOID = 1.70585 AU 
 T_jup = 3.313 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO267735  

6814 Steffl           Discovered 1979 June 25 by E. F. Helin and S. J. Bus at Siding Spring.
Andrew J. Steffl (b. 1977), an astronomer at the Southwest Research Institute in Boulder, Colorado, in July 2005 independently discovered Pluto's second and third satellites, using Hubble Space Telescope images.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2007-06-08

Alternate Designations
 1979 MC2 = 1982 BS14 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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