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6012 (1990 SK4)
Classification: Main-belt Asteroid          SPK-ID: 2006012
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3440429233819853 6.0989e-08  
a 2.63265189878507 2.2095e-08 AU
q 1.72690664327992 1.5801e-07 AU
i 18.25035980822903 9.178e-06 deg
node 62.70583737018609 2.2077e-05 deg
peri 251.5575021258946 2.7544e-05 deg
M 197.8779231520185 2.113e-05 deg
tp 2457503.132513604551
(2016-Apr-24.63251360)
9.6949e-05 JED
period 1560.229857743695
4.27
1.9641e-05
5.377e-08
d
yr
n .2307352331537926 2.9047e-09 deg/d
Q 3.53839715429022 2.9696e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      13495 days (36.95 yr)  
   first obs. used      1977-05-18  
   last obs. used      2014-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56639  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:18:08  

Additional Information
 Earth MOID = .805918 AU 
 T_jup = 3.245 
[ 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 13.1 mag n/a MPO256908  
rotation period rot_per 2.894 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]

6012 (1990 SK4)          Discovered 1990-Sep-22 by McNaught, R. H. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 SK4 = 1977 KU1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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